1
|
Ma RY, Yang J, Wu JJ, Zhu HY. Exploiting the chemical diversity space of phosphopeptide binding to nasopharyngeal carcinoma PLK1 PBD domain with unnatural amino acid building blocks by using QSAR-based genetic optimization. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2024; 35:899-918. [PMID: 39556013 DOI: 10.1080/1062936x.2024.2418355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 10/14/2024] [Indexed: 11/19/2024]
Abstract
Human polo-like kinase 1 (PLK1) has been recognized as an attractive therapeutic target against nasopharyngeal carcinoma (NPC). The kinase contains a conserved polo-box domain (PBD) that exhibits a wide specificity across various substrates. Previously, we explored natural amino acid preference in PLK1 PBD-binding phosphopeptides. However, limited to the short sequence only natural amino acids cannot guarantee the sufficient exploitation of chemical and structural diversity of the phosphopeptides. Here, we described a genetic optimization (GO) strategy to systematically optimize a 104-sized 6-mer phosphopeptide array towards increasing affinity to PLK1 PBD domain by using 20 natural plus 34 unnatural amino acids as basic building blocks. A QSAR predictor was created to guide the GO optimization and then evaluated rigorously at molecular and cellular levels. Three unnatural phosphopeptides uPP8, uPP15 and uPP20 were designed as potent binders with Kd = 0.18, 0.42 and 0.08 μM, respectively, in which the uPP20 also possessed a good anti-tumor activity against human NPC cells when fused with cell permeation sequence. In addition, we defined a relaxed 6-mer motif for the preferential PLK1 PBD-binding phosphosites, namely [Φ/П]-3-[ζ]-2-[ζ]-1-[pT/pS]0-[Φ/П]+1-[Φ]+2, where the symbols Φ, ζ and П represent hydrophobic, polar and aromatic amino acid types, respectively. .
Collapse
Affiliation(s)
- R Y Ma
- Department of Otorhinolaryngology, Zhejiang Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, China
| | - J Yang
- Department of Otorhinolaryngology, Zhejiang Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, China
| | - J J Wu
- Department of Otorhinolaryngology, Zhejiang Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, China
| | - H Y Zhu
- Department of Otorhinolaryngology, Zhejiang Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, China
| |
Collapse
|
2
|
Lin J, Wen L, Zhou Y, Wang S, Ye H, Su J, Li J, Shu J, Huang J, Zhou P. PepQSAR: a comprehensive data source and information platform for peptide quantitative structure-activity relationships. Amino Acids 2023; 55:235-242. [PMID: 36474016 DOI: 10.1007/s00726-022-03219-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
Peptide quantitative structure-activity relationships (pQSARs) have been widely applied to the statistical modeling and empirical prediction of peptide activity, property and feature. In the procedure, the peptide structure is characterized at sequence level using amino acid descriptors (AADs) and then correlated with observations by machine learning methods (MLMs), consequently resulting in a variety of quantitative regression models used to explain the structural factors that govern peptide activities, to generalize peptide properties of unknown from known samples, and to design new peptides with desired features. In this study, we developed a comprehensive platform, termed PepQSAR database, which is a systematic collection and decomposition of various data sources and abundant information regarding the pQSARs, including AADs, MLMs, data sets, peptide sequences, measured activities, model statistics, and literatures. The database also provides a comparison function for the various previously built pQSAR models reported by different groups via distinct approaches. The structured and searchable PepQSAR database is expected to provide a useful resource and powerful tool for the computational peptidology community, which is freely available at http://i.uestc.edu.cn/PQsarDB .
Collapse
Affiliation(s)
- Jing Lin
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Li Wen
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Yuwei Zhou
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Shaozhou Wang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Haiyang Ye
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Jun Su
- College of Music, Chengdu Normal University, Chengdu, 611130, China
| | - Juelin Li
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Jianping Shu
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China
| | - Jian Huang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China.
| | - Peng Zhou
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China (UESTC), No. 2006 Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China.
| |
Collapse
|
3
|
Integrated in silico-in vitro molecular modeling and design of halogenated phenylalanine-containing antihypertensive peptide inhibitors with halogen bonds to target human angiotensin-I-converting enzyme. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2022.111732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
4
|
Fu J, Chen S, Ni Z. Rational truncation, mutation, and halogenation of bradykinin neuropeptides as potent
ACEII
inhibitors by integrating molecular dynamics simulations, quantum mechanics calculations, and in vitro assays. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jun Fu
- Department of Neurology Suzhou Kowloon Hospital, Shanghai Jiao Tong University School of Medicine Suzhou China
| | - Shenghui Chen
- Department of Neurology Suzhou Kowloon Hospital, Shanghai Jiao Tong University School of Medicine Suzhou China
| | - Zhong Ni
- Institute of Life Sciences Jiangsu University Zhenjiang China
| |
Collapse
|
5
|
Yu X, Zhang A, Sun G, Li X. Molecular selectivity design of mitogen-inducible gene-derived phosphopeptides between oncogenic HER kinases. J Mol Graph Model 2020; 99:107661. [PMID: 32574989 DOI: 10.1016/j.jmgm.2020.107661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/23/2020] [Accepted: 05/29/2020] [Indexed: 11/28/2022]
Abstract
Mitogen-inducible gene (MIG) is a natural negative regulator of the oncogenic HER kinase signaling by binding at the activation interface of kinase domain to disrupt the kinase dimerization. In this study, we systematically examine the binding structures, dynamics and energetics of MIG region 2 to four HER kinases based on their crystal or modeled complex structures, and identify an 8-mer phosphopeptide segment pYpY from the core strand sequence of MIG region 2 as the binding hotspot of MIG protein to HER kinases. We demonstrate that the small pYpY phosphopeptide can partially restore the binding affinity of full-length MIG protein, but exhibit a moderate selectivity over different HER kinases (S = 2.3-fold). In addition, the two phosphotyrosine residues pTyr394 and pTyr395 play an essential role in MIG-HER binding; dephosphorylation of them would fully eliminate the binding capability. A machine evolution algorithm is used to optimize the wild-type pYpY phosphopeptide, aiming to simultaneously improve affinity for these kinases and to maximize the affinity gap between different kinases. Consequently, a population is computationally evolved as selective phosphopeptide candidates; the dissociation constants of four representatives with HER kinases are systematically determined using binding affinity analysis, from which their selectivity is derived. The designed pYpYp3 phosphopeptide possesses a high selectivity over different HER kinases (S = 4.8-fold) and satisfactory affinity profile to these kinase (KD = 140-1000 μM). Structural analysis observes that the global binding modes of pYpYp3 to different kinases are roughly consistent, but its local conformation may vary considerably, thus conferring specificity to the phosphopeptide.
Collapse
Affiliation(s)
- Xiuli Yu
- Department of Radiotherapy, Yidu Central Hospital Affiliated to Weifang Medical University, Weifang, 262500, China
| | - Aiying Zhang
- Orthopaedic Trauma, Yidu Central Hospital Affiliated to Weifang Medical University, Weifang, 262500, China
| | - Guoyu Sun
- Intensive Care Unit, Yidu Central Hospital Affiliated to Weifang Medical University, Weifang, 262500, China
| | - Xuebo Li
- Department of Radiotherapy, Yidu Central Hospital Affiliated to Weifang Medical University, Weifang, 262500, China.
| |
Collapse
|
6
|
Taga Y, Hayashida O, Ashour A, Amen Y, Kusubata M, Ogawa-Goto K, Shimizu K, Hattori S. Characterization of Angiotensin-Converting Enzyme Inhibitory Activity of X-Hyp-Gly-Type Tripeptides: Importance of Collagen-Specific Prolyl Hydroxylation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8737-8743. [PMID: 30060651 DOI: 10.1021/acs.jafc.8b03648] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydroxyproline (Hyp) is a collagen-specific amino acid formed by post-translational hydroxylation of Pro residues. Various Hyp-containing oligopeptides are transported into the blood at high concentrations after oral ingestion of collagen hydrolysate. Here we investigated the angiotensin-converting enzyme (ACE) inhibitory activity of X-Hyp-Gly-type tripeptides. In an in vitro assay, ginger-degraded collagen hydrolysate enriched with X-Hyp-Gly-type tripeptides dose-dependently inhibited ACE and various synthetic X-Hyp-Gly-type tripeptides showed ACE-inhibitory activity. In particular, strong inhibition was observed for Leu-Hyp-Gly, Ile-Hyp-Gly, and Val-Hyp-Gly with IC50 values of 5.5, 9.4, and 12.8 μM, respectively. Surprisingly, substitution of Hyp with Pro dramatically decreased inhibitory activity of X-Hyp-Gly, indicating that Hyp is important for ACE inhibition. This finding was supported by molecular docking experiments using Leu-Hyp-Gly/Leu-Pro-Gly. We further demonstrated that prolyl hydroxylation significantly enhanced resistance to enzymatic degradation by incubation with mouse plasma. The strong ACE-inhibitory activity and high stability of X-Hyp-Gly-type tripeptides highlight their potential for hypertension control.
Collapse
Affiliation(s)
- Yuki Taga
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara , Toride , Ibaraki 302-0017 , Japan
| | - Osamu Hayashida
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara , Toride , Ibaraki 302-0017 , Japan
| | - Ahmed Ashour
- Faculty of Agriculture , Kyushu University , 6-10-1 Hakozaki, Higashi-ku , Fukuoka 812-8581 , Japan
- Department of Pharmacognosy, Faculty of Pharmacy , Mansoura University , Mansoura 35516 , Egypt
| | - Yhiya Amen
- Faculty of Agriculture , Kyushu University , 6-10-1 Hakozaki, Higashi-ku , Fukuoka 812-8581 , Japan
- Department of Pharmacognosy, Faculty of Pharmacy , Mansoura University , Mansoura 35516 , Egypt
| | - Masashi Kusubata
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara , Toride , Ibaraki 302-0017 , Japan
| | - Kiyoko Ogawa-Goto
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara , Toride , Ibaraki 302-0017 , Japan
| | - Kuniyoshi Shimizu
- Faculty of Agriculture , Kyushu University , 6-10-1 Hakozaki, Higashi-ku , Fukuoka 812-8581 , Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara , Toride , Ibaraki 302-0017 , Japan
| |
Collapse
|
7
|
Sangsawad P, Roytrakul S, Choowongkomon K, Kitts DD, Chen XM, Meng G, Li-Chan EC, Yongsawatdigul J. Transepithelial transport across Caco-2 cell monolayers of angiotensin converting enzyme (ACE) inhibitory peptides derived from simulated in vitro gastrointestinal digestion of cooked chicken muscles. Food Chem 2018; 251:77-85. [DOI: 10.1016/j.foodchem.2018.01.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 12/09/2017] [Accepted: 01/04/2018] [Indexed: 01/27/2023]
|
8
|
Structure-based rational design of peptide inhibitors to disrupt the recognition and interaction between hepatitis B virus large envelope protein and human hepatocyte receptor γ2-adaptin. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1981-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
9
|
Computational design of peptide ligands to target the intermolecular interaction between viral envelope protein and pediatric receptor. Comput Biol Chem 2017; 69:120-125. [PMID: 28666141 DOI: 10.1016/j.compbiolchem.2017.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/18/2017] [Accepted: 06/12/2017] [Indexed: 01/06/2023]
Abstract
The recognition and binding of viral envelope protein to pediatric receptor subverts the membrane-trafficking apparatus to mediate virion export in young children. Here, we described a successful computational design of peptide ligands to target the intermolecular interaction between the virus large envelope protein (LHB) and adaptin receptor (ADT). Based on the crystal structure of ADT in complex with an oligopeptide segment corresponding to the core binding site of LHB, a sequence-specific amino acid preference profile was determined systematically for the ADT-binding peptides using structural bioinformatics approach. With the information harvested from the profile, a genetic evolution procedure was run to improve the biological potency of a peptide population generated randomly from the LHB. A number of potential hits were obtained from the evolution, and four were measured to interact with ADT at micromolar level. A high-affinity hit peptide was then optimized according to computational structural analysis. It is revealed that a potent peptide can be divided into three regions, i.e. a negatively charged region at N-terminus, a hydrophobic core region in middle, and a small, polar region at C-terminal tail. In addition, the two termini of peptide are partially out of the active pocket of ADT, thus contributing moderately to the peptide binding.
Collapse
|
10
|
He Y, He X. Molecular design and genetic optimization of antimicrobial peptides containing unnatural amino acids against antibiotic-resistant bacterial infections. Biopolymers 2017; 106:746-56. [PMID: 27258330 DOI: 10.1002/bip.22885] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/30/2016] [Accepted: 05/31/2016] [Indexed: 01/25/2023]
Abstract
Antimicrobial peptides (AMPs) have been the focus of intense research towards the finding of a viable alternative to current small-molecule antibiotics, owing to their commonly observed and naturally occurring resistance against pathogens. However, natural peptides have many problems such as low bioavailability and high allergenicity that largely limit the clinical applications of AMPs. In the present study, an integrative protocol that combined chemoinformatics modeling, molecular dynamics simulations, and in vitro susceptibility test was described to design AMPs containing unnatural amino acids (AMP-UAAs). To fulfill this, a large panel of synthetic AMPs with determined activity was collected and used to perform quantitative structure-activity relationship (QSAR) modeling. The obtained QSAR predictors were then employed to direct genetic algorithm (GA)-based optimization of AMP-UAA population, to which a number of commercially available, structurally diverse unnatural amino acids were introduced during the optimization process. Subsequently, several designed AMP-UAAs were confirmed to have high antibacterial potency against two antibiotic-resistant strains, i.e. multidrug-resistant Pseudomonas aeruginosa (MDRPA) and methicillin-resistant Staphylococcus aureus (MRSA), with minimum inhibitory concentration (MIC) < 10 μg/ml. Structural dynamics characterizations revealed that the most potent AMP-UAA peptide is an amphipathic helix that can spontaneously embed into an artificial lipid bilayer and exhibits a strong destructuring tendency associated with the embedding process. © 2016 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 746-756, 2016.
Collapse
Affiliation(s)
- Yongkang He
- Department of Infectious Diseases, Taixing People's Hospital, Yangzhou University, Taixing, 225400, China.
| | - Xiaofeng He
- Department of Infectious Diseases, Taixing People's Hospital, Yangzhou University, Taixing, 225400, China
| |
Collapse
|
11
|
Xiong M, Chen M, Zhang J. Rational Evolution of Antimicrobial Peptides Containing Unnatural Amino Acids to Combat Burn Wound Infections. Chem Biol Drug Des 2016; 88:404-10. [PMID: 27062533 DOI: 10.1111/cbdd.12768] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/10/2016] [Accepted: 04/06/2016] [Indexed: 02/04/2023]
Affiliation(s)
- Meng Xiong
- Department of Burn and Plastic Surgery; Zhongda Hospital Southeast University; Nanjing 210009 China
| | - Ming Chen
- Department of Burn and Plastic Surgery; Zhongda Hospital Southeast University; Nanjing 210009 China
| | - Jue Zhang
- Department of Burn and Plastic Surgery; Zhongda Hospital Southeast University; Nanjing 210009 China
| |
Collapse
|
12
|
Zhou Z, Cheng C, Li Y. Structure-based design and optimization of antihypertensive peptides to obtain high inhibitory potency against both renin and angiotensin I-converting enzyme. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2015; 26:1001-1016. [PMID: 26524626 DOI: 10.1080/1062936x.2015.1104725] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The human renin-angiotensin system (RAS) plays an essential role in regulating blood pressure and systemic vascular resistance. Renin and angiotensin I-converting enzyme (ACE) are two key enzymes in RAS and have long been recognized as attractive antihypertensive targets. Here, a synthetic strategy was proposed integrating quantitative structure-activity relationship (QSAR), molecular dynamics (MD) simulation and binding free energy analysis to discover novel dual renin and ACE peptidic inhibitors. With the strategy a number of candidates were generated virtually, from which eight promising peptides were selected and synthesized for biological assay. Consequently, three peptides (RYLP, YTAWVP and YRAWVL) were successfully identified to have satisfactory inhibitory profile against both renin and ACE with IC50 values of <1 mM and <10 μM, respectively. Structural analysis and energetic dissection revealed different binding modes of peptide to renin and ACE; a peptide only inserts its C-terminus into the active site of ACE, whereas the whole peptide packs tightly against renin. In addition, when limited to structural diversity it is hard to reconcile the renin and ACE inhibitory activities of short peptides such as dipeptides. These findings can be used to guide peptide optimization with improved biological activity.
Collapse
Affiliation(s)
- Z Zhou
- a Department of Cardiology , Jiujiang No.1 People's Hospital of Jiangxi Province , Jiujiang , China
| | - C Cheng
- b Department of Cardiothoracic Surgery , Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| | - Y Li
- c Department of Internal Medicine , Institute of Hypertension, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
| |
Collapse
|
13
|
Chen D, Liu S, Zhang W, Sun L. Rational design of YAP WW1 domain-binding peptides to target TGFβ/BMP/Smad-YAP interaction in heterotopic ossification. J Pept Sci 2015; 21:826-32. [PMID: 26435515 DOI: 10.1002/psc.2824] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/20/2015] [Accepted: 08/21/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Dong Chen
- Department of Orthopedics, Affiliated Sixth People's Hospital; Shanghai Jiao Tong University; Shanghai 200233 China
| | - Shenghe Liu
- Department of Orthopedics, Affiliated Sixth People's Hospital; Shanghai Jiao Tong University; Shanghai 200233 China
| | - Wen Zhang
- Department of Orthopedics, Affiliated Sixth People's Hospital; Shanghai Jiao Tong University; Shanghai 200233 China
| | - Luyuan Sun
- Department of Orthopedics, Affiliated Sixth People's Hospital; Shanghai Jiao Tong University; Shanghai 200233 China
| |
Collapse
|
14
|
Ji WP, Dong Y. Targeting Yes-associated Protein with Evolved Peptide Aptamers to Disrupt TGF-β Signaling Pathway: Therapeutic Implication for Bone Tumor. Mol Inform 2015; 34:771-7. [PMID: 27491038 DOI: 10.1002/minf.201500063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/03/2015] [Indexed: 01/08/2023]
Abstract
The binding of transcription coactivator Yes-associated protein (YAP) to Smad transcription factors is an important event in activating transforming growth factor-β (TGF-β) signaling pathway, which is involved in the tumorigenicity and metastasis of bone tumor. Design of peptide aptamers to disrupt YAPSmad interaction has been established as a promising approach for bone tumor therapy. Here, an evolution strategy was used to optimize Smad-derived peptides for high potency binding to YAP WW2 domain, resulting in an improved peptide population, from which those high-scoring candidates were characterized rigorously using molecular dynamics (MD) simulations and interaction free energy calculations. With the computational protocol we were able to generate a number of potential domain binders, which were then substantiated by using fluorescence spectroscopy assay. Subsequently, the complex structure of YAP WW2 domain with a high-affinity peptide was modeled and examined in detail, which was then used to guide structure-based peptide optimization to obtain several strong domain binders. Structural and energetic analysis revealed that electrostatic complementarity is primarily responsible for domainpeptide recognition, while other nonbonded interactions such as hydrogen bonding and salt bridges can contribute significantly to the recognition specificity.
Collapse
Affiliation(s)
- Wei-Ping Ji
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200433, China, Tel: +86 21 64369675
| | - Yang Dong
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200433, China, Tel: +86 21 64369675.
| |
Collapse
|
15
|
Wu D, Gu Q, Zhao N, Xia F, Li Z. Structure-based rational design of peptide hydroxamic acid inhibitors to target tumor necrosis factor-α converting enzyme as potential therapeutics for hepatitis. J Drug Target 2015; 23:936-42. [PMID: 26061299 DOI: 10.3109/1061186x.2015.1043916] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The human tumor necrosis factor-α converting enzyme (TACE) has recently been raised as a new and promising therapeutic target of hepatitis and other inflammatory diseases. Here, we reported a successful application of the solved crystal structure of TACE complex with a peptide-like ligand INN for rational design of novel peptide hydroxamic acid inhibitors with high potency and selectivity to target and inhibit TACE. First, the intermolecular interactions between TACE catalytic domain and INN were characterized through an integrated bioinformatics approach, with which the key substructures of INN that dominate ligand binding were identified. Subsequently, the INN molecular structure was simplified to a chemical sketch of peptide hydroxamic acid compound, which can be regarded as a linear tripeptide capped by a N-terminal carboxybenzyl group (chemically protective group) and a C-terminal hydroxamate moiety (coordinated to the Zn(2+) at TACE active site). Based on the sketch, a virtual combinatorial library containing 180 peptide hydroxamic acids was generated, from which seven samples were identified as promising candidates by using a knowledge-based protein-peptide affinity predictor and were then tested in vitro with a standard TACE activity assay protocol. Consequently, three designed peptide hydroxamic acids, i.e. Cbz-Pro-Ile-Gln-hydroxamic acid, Cbz-Leu-Ile-Val-hydroxamic acid and Cbz-Phe-Val-Met-hydroxamic acid, exhibited moderate or high inhibitory activity against TACE, with inhibition constants Ki of 36 ± 5, 510 ± 46 and 320 ± 26 nM, respectively. We also examined the structural basis and non-bonded profile of TACE interaction with a designed peptide hydroxamic acid inhibitor, and found that the inhibitor ligand is tightly buried in the active pocket of TACE, forming a number of hydrogen bonds, hydrophobic forces and van der Waals contacts at the interaction interface, conferring both stability and specificity for TACE-inhibitor complex architecture.
Collapse
Affiliation(s)
- Dan Wu
- a Infectious Disease Department , The Shengjing Hospital of China Medical University , Shenyang , China
| | - Qiuhong Gu
- a Infectious Disease Department , The Shengjing Hospital of China Medical University , Shenyang , China
| | - Ning Zhao
- a Infectious Disease Department , The Shengjing Hospital of China Medical University , Shenyang , China
| | - Fei Xia
- a Infectious Disease Department , The Shengjing Hospital of China Medical University , Shenyang , China
| | - Zhiwei Li
- a Infectious Disease Department , The Shengjing Hospital of China Medical University , Shenyang , China
| |
Collapse
|
16
|
Wang K, Tang Y, Yan F, Zhu J, Li J. Potent inhibition of TGF-β signaling pathway regulator Abl: potential therapeutics for hepatic fibrosis. J Recept Signal Transduct Res 2014; 35:410-9. [PMID: 25418123 DOI: 10.3109/10799893.2014.986745] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hepatic fibrosis is overly exuberant wound healing in which excessive connective tissue builds up in the liver. The treatment of hepatic fibrosis is still difficult and remains a challenge to the clinician. In recent years, the TGF-β signaling pathway regulator tyrosine kinase Abl has been raised as a new and promising target of hepatic fibrosis therapy. Here, considering that there are numerous drugs and drug-like compounds being approved or under clinical development and experimental investigation, it is expected that some of the existing drugs can be re-exploited as new agents to target Abl with the capability of suppressing hepatic fibrosis. To achieve this, a synthetic protocol that integrated molecular docking, affinity scoring dynamics simulation and free energy analysis was described to systematically profile the inhibitory potency of various drugs and drug-like compounds against the kinase domain of Abl. Consequently, 4 out of 13 tested drug candidates were successfully identified to have high-Abl inhibitory activities. By visually examining the dynamics behavior, structural basis and energetic property of few typical Abl-drug complex cases, a significantly different pattern of non-bonded interactions between the binding of active and inactive drug ligands to Abl receptor was revealed; the former is defined by strong, specific chemical forces, while the latter can only form non-specific hydrophobic contacts with slight atomic collisions.
Collapse
Affiliation(s)
- Kuifeng Wang
- a Institute of Cell Biology, Zhejiang University , Hangzhou P.R. China and.,b Infectious Department , Taizhou Hospital, Affiliated Hospital of Wenzhou Medical University , Taizhou , P.R. China
| | - Yongzhi Tang
- b Infectious Department , Taizhou Hospital, Affiliated Hospital of Wenzhou Medical University , Taizhou , P.R. China
| | - Fei Yan
- b Infectious Department , Taizhou Hospital, Affiliated Hospital of Wenzhou Medical University , Taizhou , P.R. China
| | - Jiansheng Zhu
- b Infectious Department , Taizhou Hospital, Affiliated Hospital of Wenzhou Medical University , Taizhou , P.R. China
| | - Jicheng Li
- a Institute of Cell Biology, Zhejiang University , Hangzhou P.R. China and
| |
Collapse
|
17
|
Fang Y, Jin R, Gao Y, Gao J, Wang J. Design of p53-derived peptides with cytotoxicity on breast cancer. Amino Acids 2014; 46:2015-24. [DOI: 10.1007/s00726-014-1750-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 04/14/2014] [Indexed: 12/12/2022]
|
18
|
Evolution of High-Affinity Peptide Probes to Detect the SH3 Domain of Cancer Biomarker BCR–ABL. Int J Pept Res Ther 2013. [DOI: 10.1007/s10989-013-9382-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
19
|
Ren Y, Wang Q, Chen S, Cao H. Integrating Computational Modeling and Experimental Assay to Discover New Potent ACE-Inhibitory Peptides. Mol Inform 2013; 33:43-52. [DOI: 10.1002/minf.201300131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 09/11/2013] [Indexed: 02/05/2023]
|