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Dinan JC, McCormick JW, Reynolds KA. Engineering Proteins Using Statistical Models of Coevolutionary Sequence Information. Cold Spring Harb Perspect Biol 2024; 16:a041463. [PMID: 38110247 PMCID: PMC10982702 DOI: 10.1101/cshperspect.a041463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Homologous protein sequences are wonderfully diverse, indicating many possible evolutionary "solutions" to the encoding of function. Consequently, one can construct statistical models of protein sequence by analyzing amino acid frequency across a large multiple sequence alignment. A central premise is that covariance between amino acid positions reflects coevolution due to a shared functional or biophysical constraint. In this review, we describe the implementation and discuss the advantages, limitations, and recent progress on two coevolution-based modeling approaches: (1) Potts models of protein sequence (direct coupling analysis [DCA]-like), and (2) the statistical coupling analysis (SCA). Each approach detects interesting features of protein sequence and structure-the former emphasizes local physical contacts throughout the structure, while the latter identifies larger evolutionarily coupled networks of residues. Recent advances in large-scale gene synthesis and high-throughput functional selection now motivate additional work to benchmark model performance across quantitative function prediction and de novo design tasks.
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Affiliation(s)
- Jerry C Dinan
- The Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
- The Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
- The Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - James W McCormick
- The Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
- The Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
- The Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - Kimberly A Reynolds
- The Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
- The Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
- The Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
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Wickramaratne AC, Liao JY, Doyle SM, Hoskins JR, Puller G, Scott ML, Alao JP, Obaseki I, Dinan JC, Maity TK, Jenkins LM, Kravats AN, Wickner S. J-domain Proteins form Binary Complexes with Hsp90 and Ternary Complexes with Hsp90 and Hsp70. J Mol Biol 2023; 435:168184. [PMID: 37348754 PMCID: PMC10527347 DOI: 10.1016/j.jmb.2023.168184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/26/2023] [Accepted: 06/14/2023] [Indexed: 06/24/2023]
Abstract
Hsp90 and Hsp70 are highly conserved molecular chaperones that help maintain proteostasis by participating in protein folding, unfolding, remodeling and activation of proteins. Both chaperones are also important for cellular recovery following environmental stresses. Hsp90 and Hsp70 function collaboratively for the remodeling and activation of some client proteins. Previous studies using E. coli and S. cerevisiae showed that residues in the Hsp90 middle domain directly interact with a region in the Hsp70 nucleotide binding domain, in the same region known to bind J-domain proteins. Importantly, J-domain proteins facilitate and stabilize the interaction between Hsp90 and Hsp70 both in E. coli and S. cerevisiae. To further explore the role of J-domain proteins in protein reactivation, we tested the hypothesis that J-domain proteins participate in the collaboration between Hsp90 and Hsp70 by simultaneously interacting with Hsp90 and Hsp70. Using E. coli Hsp90, Hsp70 (DnaK), and a J-domain protein (CbpA), we detected a ternary complex containing all three proteins. The interaction involved the J-domain of CbpA, the DnaK binding region of E. coli Hsp90, and the J-domain protein binding region of DnaK where Hsp90 also binds. Additionally, results show that E. coli Hsp90 interacts with E. coli J-domain proteins, DnaJ and CbpA, and that yeast Hsp90, Hsp82, interacts with a yeast J-domain protein, Ydj1. Together these results suggest that the complexes may be transient intermediates in the pathway of collaborative protein remodeling by Hsp90 and Hsp70.
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Affiliation(s)
- Anushka C Wickramaratne
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jui-Yun Liao
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Shannon M Doyle
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Joel R Hoskins
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Gabrielle Puller
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Madison L Scott
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - John Paul Alao
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
| | - Ikponwmosa Obaseki
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
| | - Jerry C Dinan
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Tapan K Maity
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Lisa M Jenkins
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Andrea N Kravats
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA.
| | - Sue Wickner
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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Jeong J, Kadegowda AKG, Meyer TJ, Jenkins LM, Dinan JC, Wysolmerski JJ, Weigert R, Mather IH. The butyrophilin 1a1 knockout mouse revisited: Ablation of Btn1a1 leads to concurrent cell death and renewal in the mammary epithelium during lactation. FASEB Bioadv 2021; 3:971-997. [PMID: 34938960 PMCID: PMC8664049 DOI: 10.1096/fba.2021-00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 01/28/2023] Open
Abstract
Butyrophilin 1A1 (BTN1A1) is implicated in the secretion of lipid droplets from mammary epithelial cells as a membrane receptor, which forms a secretion complex with the redox enzyme, xanthine oxidoreductase (XDH). The first evidence that BTN1A1 functions in this process was the generation of Btn1a1 -/- mouse lines, in which lipid secretion was disrupted and large unstable droplets were released into alveolar spaces with fragmented surface membranes. We have revisited one of these mutant mouse lines using RNAseq and proteomic analysis to assess the consequences of ablating the Btn1a1 gene on the expression of other genes and proteins. Disruption of intact Btn1a1 protein expression led to a large build-up of Xdh in the cytoplasm, induction of acute phase response genes and Lif-activation of Stat3 phosphorylation. At peak lactation, approx. 10% of the cells were dying, as assessed by TUNEL-analysis of nuclear DNA. Possible cell death pathways included expression of caspase 8 and activated caspase 3, autophagy, Slc5a8-mediated inactivation of survivin (Birc5), and pStat3-mediated lysosomal lysis, the latter of which is the principal death route in involuting wild type cells. Milk secretion was prolonged by renewal of the secretory epithelium, as evidenced by the upregulation of Ki67 in approx. 10% of cell nuclei and expression of cyclins and Fos/Jun. These data highlight the plasticity of the mammary epithelium and the importance of functional BTN1A1 expression for maintenance of terminally differentiated secretory cells and optimal milk production throughout lactation.
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Affiliation(s)
- Jaekwang Jeong
- Department of Animal and Avian SciencesUniversity of MarylandCollege ParkMarylandUSA
- Present address:
Section of Endocrinology and MetabolismDepartment of Internal MedicineYale University School of MedicineNew HavenConnecticut06520USA
| | - Anil K. G. Kadegowda
- Department of Animal and Avian SciencesUniversity of MarylandCollege ParkMarylandUSA
- Present address:
Department of Animal SciencesUniversity of Agricultural Sciences DharwadHubliKarnataka580005India
| | - Thomas J. Meyer
- CCR Collaborative Bioinformatics ResourceNational Cancer InstituteNational Institutes of HealthBethesdaMarylandUSA
- Advanced Biomedical Computational ScienceFrederick National Laboratory for Cancer ResearchFrederickMarylandUSA
| | - Lisa M. Jenkins
- Laboratory of Cell BiologyNational Cancer InstituteNational Institutes of HealthBethesdaMarylandUSA
| | - Jerry C. Dinan
- Laboratory of Cell BiologyNational Cancer InstituteNational Institutes of HealthBethesdaMarylandUSA
| | - John J. Wysolmerski
- Department of Internal MedicineYale University School of MedicineNew HavenConnecticutUSA
| | - Roberto Weigert
- Laboratory of Cellular and Molecular BiologyCenter for Cancer ResearchNational Cancer InstituteNational Institutes of HealthBethesdaMarylandUSA
| | - Ian H. Mather
- Department of Animal and Avian SciencesUniversity of MarylandCollege ParkMarylandUSA
- Laboratory of Cellular and Molecular BiologyCenter for Cancer ResearchNational Cancer InstituteNational Institutes of HealthBethesdaMarylandUSA
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