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Soffer JB, Fradkin E, Pandiscia LA, Schweitzer-Stenner R. The (Not Completely Irreversible) Population of a Misfolded State of Cytochrome c under Folding Conditions. Biochemistry 2013; 52:1397-408. [DOI: 10.1021/bi301586e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jonathan B. Soffer
- Departments of Chemistry and
Biology, Drexel University, 3141 Chestnut
Street, Philadelphia, Pennsylvania 19104, United
States
| | - Emma Fradkin
- Departments of Chemistry and
Biology, Drexel University, 3141 Chestnut
Street, Philadelphia, Pennsylvania 19104, United
States
| | - Leah A. Pandiscia
- Departments of Chemistry and
Biology, Drexel University, 3141 Chestnut
Street, Philadelphia, Pennsylvania 19104, United
States
| | - Reinhard Schweitzer-Stenner
- Departments of Chemistry and
Biology, Drexel University, 3141 Chestnut
Street, Philadelphia, Pennsylvania 19104, United
States
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Fekete S, Veuthey JL, McCalley DV, Guillarme D. The effect of pressure and mobile phase velocity on the retention properties of small analytes and large biomolecules in ultra-high pressure liquid chromatography. J Chromatogr A 2012. [PMID: 23182282 DOI: 10.1016/j.chroma.2012.10.056] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A possible complication of ultra-high pressure liquid chromatography (UHPLC) is related to the effect of pressure and mobile phase velocity on the retention properties of the analytes. In the present work, numerous model compounds have been selected including small molecules, peptides, and proteins (such as monoclonal antibodies). Two instrumental setups were considered to attain elevated pressure drops, firstly the use of a post-column restrictor capillary at low mobile phase flow rate (pure effect of pressure) and secondly the increase of mobile phase flow rate without restrictor (i.e. a combined effect of pressure and frictional heating). In both conditions, the goal was to assess differences in retention behaviour, depending on the type or character of the analyte. An important conclusion is that the effect of pressure and mobile phase velocity on retention varied in proportion with the size of the molecule and in some cases showed very different behaviour. In isocratic mode, the pure effect of pressure (experiments with a post-column restrictor capillary) induces an increase in retention by 25-100% on small molecules (MW<300 g/mol), 150% for peptides (~1.3 kDa), 800% for insulin (~6 kDa) and up to >3000% for myoglobin (~17 kDa) for an increase in pressure from 100 bar up to 1100 bar. The important effect observed for the isocratic elution of proteins is probably related to conformational changes of the protein in addition to the effect of molecular size. Working in gradient elution mode, the pressure related effects on retention were found to be less pronounced but still present (an increase of apparent retention factor between 0.2 and 2.5 was observed).
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Affiliation(s)
- Szabolcs Fekete
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Bd d'Yvoy 20, 1211 Geneva 4, Switzerland.
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Affiliation(s)
- D Keilin
- The Molteno Institute, University of Cambridge
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Sivakolundu SG, Mabrouk PA. Structure-function relationship of reduced cytochrome c probed by complete solution structure determination in 30% acetonitrile/water solution. J Biol Inorg Chem 2003; 8:527-539. [PMID: 12764601 DOI: 10.1007/s00775-002-0437-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2002] [Accepted: 12/03/2002] [Indexed: 12/01/2022]
Abstract
The complete solution structure of ferrocytochrome c in 30% acetonitrile/70% water has been determined using high-field 1D and 2D (1)H NMR methods and deposited in the Protein Data Bank with codes 1LC1 and 1LC2. This is the first time a complete solution protein structure has been determined for a protein in nonaqueous media. Ferrocyt c retains a native protein secondary structure (five alpha-helices and two omega loops) in 30% acetonitrile. H18 and M80 residues are the axial heme ligands, as in aqueous solution. Residues believed to be axial heme ligands in the alkaline-like conformers of ferricyt c, specifically H33 and K72, are positioned close to the heme iron. The orientations of both heme propionates are markedly different in 30% acetonitrile/70% water. Comparative structural analysis of reduced cyt c in 30% acetonitrile/70% water solution with cyt c in different environments has given new insight into the cyt c folding mechanism, the electron transfer pathway, and cell apoptosis.
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Affiliation(s)
| | - Patricia Ann Mabrouk
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA.
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Laszlo JA, Compton DL. Comparison of peroxidase activities of hemin, cytochrome c and microperoxidase-11 in molecular solvents and imidazolium-based ionic liquids. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1177(02)00074-7] [Citation(s) in RCA: 148] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Niu J, Guo Y, Dong S. The direct electrochemistry of cryo-hydrogel immobilized myoglobin at a glassy carbon electrode. J Electroanal Chem (Lausanne) 1995. [DOI: 10.1016/0022-0728(95)04083-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Rönnberg M, Osterlund K, Ellfolk N. Resonance Raman spectra of Pseudomonas cytochrome c peroxidase. BIOCHIMICA ET BIOPHYSICA ACTA 1980; 626:23-30. [PMID: 6257304 DOI: 10.1016/0005-2795(80)90193-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Resonance Raman spectra of ferric, ferrous and ferrous-carbonyl forms of Pseudomonas cytochrome c peroxidase are presented. The porphyrin ring vibration frequencies are compared with those of other heme proteins which are in well defined spin and oxidation states. Both the native oxidized and the reduced forms of the enzyme show two sets of Raman lines, one having a low-spin and the other a high-spin character. Resolved bands can be assigned to heme c and heme c', the low-spin and the high-spin moiety of the enzyme, respectively. The low-spin heme moiety of the ferric enzyme is concluded to have an imidazole-nitrogen : heme-iron : methionine-sulphur hemochrome structure, whereas in the ferrous enzyme the methionine-sulphur ligation is exchanged with the nitrogen of histidine or lysine (N epsilon). The Raman spectra indicate that the high-spin ferric heme consists of a mixture of a five-coordinated form and a six-coordinated form with a carboxylate group as a ligand. In the reduced enzyme the high-spin heme is five-coordinated. The Raman spectrum of the carbonyl derivative of Pseudomonas cytochrome c peroxidase indicates that the compound has an electron structure similar to that of carboxyhemoglobin and carboxymyoglobin. The data confirm earlier results that the two heme moieties of the enzyme are bound to the apoprotein by covalent thioether bonds as in c-type cytochromes.
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Andersson T, Angström J, Falk KE, Forsén S. Perchlorate binding to cytochrome c: a magnetic and optical study. EUROPEAN JOURNAL OF BIOCHEMISTRY 1980; 110:363-9. [PMID: 6254769 DOI: 10.1111/j.1432-1033.1980.tb04876.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
1. The effects of perchlorate on cytochrome c have been investigated by 1H and 35Cl NMR, electron paramagnetic resonance and optical spectroscopy. 2. The pK values for the formation and disappearance of the major alkaline conformation were found to be displaced from 9.3 to 8.3 and from 10.4 to 10.9, respectively. The displacement was dependent on the ClO4(-) concentration below 0.1 M. 3. Competition experiments between perchlorate and chloride show that ClO4(-) binds both to the neutral and alkaline forms but with a higher affinity for the latter. The appearance of a new binding site in the alkaline form accounts for the markedly enhanced relaxation rate of 35ClO4(-) in this pH range. Complex formation between cyanide and the alkaline species results in the loss of this binding site, which probably is located close to or within the heme crevice. 4. The neutral form of ferricytochrome c also binds perchlorate strongly as evidence by the unique appearance of a high-spin signal dependent on pH and perchlorate concentration. This signal disappears with the same pK value as the neutral form. The effects of perchlorate on cytochrome c are due to specific binding of this ion.
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Osheroff N, Borden D, Koppenol W, Margoliash E. Electrostatic interactions in cytochrome c. The role of interactions between residues 13 and 90 and residues 79 and 47 in stabilizing the heme crevice structure. J Biol Chem 1980. [DOI: 10.1016/s0021-9258(19)86087-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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11
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Brautigan DL, Feinberg BA, Hoffman BM, Margoliash E, Preisach J, Blumberg WE. Multiple low spin forms of the cytochrome c ferrihemochrome. EPR spectra of various eukaryotic and prokaryotic cytochromes c. J Biol Chem 1977. [DOI: 10.1016/s0021-9258(17)32756-4] [Citation(s) in RCA: 176] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Ben-Hayyim G, Schejter A. Heme-linked properties of Euglena cytochrome f. EUROPEAN JOURNAL OF BIOCHEMISTRY 1974; 46:569-73. [PMID: 4852238 DOI: 10.1111/j.1432-1033.1974.tb03651.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Campbell WH, Orme-Johnson WH, Burris RH. A comparison of the physical and chemical properties of four cytochromes c from Azotobacter vinelandii. Biochem J 1973; 135:617-30. [PMID: 4360247 PMCID: PMC1165876 DOI: 10.1042/bj1350617] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
1. A modified method for the separation and purification of four cytochromes c from Azotobacter vinelandii is described. Two new cytochromes c have been purified and are designated cytochromes c(551) and c(555). 2. Additional evidence is presented to establish the dihaem nature of cytochrome c(4). Ultracentrifugation data indicated similar molecular weights for the native and the denatured protein. Cleavage with CNBr yielded seven peptides; the amino acid compositions of the purified peptides were determined. Only one haem peptide was recovered. 3. Cytochromes c(551) and c(555) were characterized as acidic proteins of molecular weights about 12000. The spectral properties, isoelectric points, ;maps' of peptides from CNBr cleavage and amino acid compositions were determined for these two proteins. 4. The spectral properties, isoelectric points, molecular weights, CNBr peptide ;maps', amino acid compositions, relative oxidation-reduction potentials and e.p.r. (electron-paramagnetic-resonance) spectra of the four cytochromes c were compared. Cytochrome c(4) and cytochrome c(551) appear to be distinct proteins. The distinction between cytochromes c(5) and c(555) was not as clear, and our data are inadequate to establish firmly that they are distinct proteins. 5. The dihaem nature of cytochrome c(4) is evident in its e.p.r. spectrum. The e.p.r. spectra are similar to the spectra of mammalian cytochromes c.
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Greenwood C, Palmer G. Evidence for the Existence of Two Functionally Distinct Forms of Cytochrome c Monomer at Alkaline pH. J Biol Chem 1965. [DOI: 10.1016/s0021-9258(18)97195-4] [Citation(s) in RCA: 101] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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CONRAD H, SMITH L. A study of the kinetics of the oxidation of cytochrome c by cytochrome c oxidase. Arch Biochem Biophys 1956; 63:403-13. [PMID: 13355465 DOI: 10.1016/0003-9861(56)90055-8] [Citation(s) in RCA: 261] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lautsch W, Broser W, Biedermann W, Gnichtel H. Über Fermentmodelle und ihre Beziehungen zu den Einschlußverbindungen. Angew Chem Int Ed Engl 1954. [DOI: 10.1002/ange.19540660503] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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HARNISCHFEGER E, OPITZ E. �ber den Cytochromgehalt verschiedener Kaninchenorgane nach H�henanpassung. Pflugers Arch 1950; 252:627-35. [PMID: 14827693 DOI: 10.1007/bf00463540] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Prader A, Gonella A. Die spektrophotometrische Bestimmung von Cytochromc im Gewebe. ACTA ACUST UNITED AC 1947. [DOI: 10.1007/bf02148815] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Drabkin DL. The Establishment of Precise Spectrophotometric Constants for Hemochromogens and Cytochrome C upon an Iron Basis, and the Analysis of the Cytochrome C Spectrum*. ACTA ACUST UNITED AC 1941. [DOI: 10.1364/josa.31.000070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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A STRUCTURAL INTERPRETATION OF THE ACIDITY OF GROUPS ASSOCIATED WITH THE HEMES OF HEMOGLOBIN AND HEMOGLOBIN DERIVATIVES. J Biol Chem 1940. [DOI: 10.1016/s0021-9258(19)56225-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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