1f3w Citations

Structural and functional linkages between subunit interfaces in mammalian pyruvate kinase.

J Mol Biol 312 525-40 (2001)
Cited: 33 times
EuropePMC logo PMID: 11563914

Abstract

Mammalian pyruvate kinase (PK) is a four-domain enzyme that is active as a homo-tetramer. Tissue-specific isozymes of PK exhibit distinct levels of allosteric regulation. PK expressed in muscle tissue (M1-PK) shows hyperbolic steady-state kinetics, whereas PK expressed in kidney tissue (M2-PK) displays sigmoidal kinetics. Rabbit M1 and M2-PK are isozymes whose sequences differ in only 22 out of 530 residues per subunit, and these changes are localized in an inter-subunit interface. Previous studies have shown that a single amino acid mutation to M1-PK at either the Y (S402P) or Z (T340 M) subunit interface can confer a level of allosteric regulation that is intermediate to M1-PK and M2-PK. In an effort to elucidate the roles of the inter-subunit interaction in signal transmission and the functional/structural connectivity between these interfaces, the S402P mutant of M1-PK was crystallized and its structure resolved to 2.8 A. Although the overall S402P M1-PK structure is nearly identical with the wild-type structure within experimental error, significant differences in the conformation of the backbone are found at the site of mutation along the Y interface. In addition, there is a significant change along the Z interface, namely, a loss of an inter-subunit salt-bridge between Asp177 of domain B and Arg341 of domain A of the opposing subunit. Concurrent with the loss of the salt-bridge is an increase in the degree of rotational flexibility of domain B that constitutes the active site. Comparison of previous PK structures shows a correlation between an increase in this domain movement with the loss of the Asp177: Arg341 salt-bridge. These results identify the structural linkages between the Y and Z interfaces in regulating the interconversion of conformational states of rabbit M1-PK.

Reviews - 1f3w mentioned but not cited (1)

  1. Modulation of allostery of pyruvate kinase by shifting of an ensemble of microstates. Lee JC. Acta Biochim Biophys Sin (Shanghai) 40 663-669 (2008)

Articles - 1f3w mentioned but not cited (7)

  1. An integrated native mass spectrometry and top-down proteomics method that connects sequence to structure and function of macromolecular complexes. Li H, Nguyen HH, Ogorzalek Loo RR, Campuzano IDG, Loo JA. Nat Chem 10 139-148 (2018)
  2. Computational Insights into Compaction of Gas-Phase Protein and Protein Complex Ions in Native Ion Mobility-Mass Spectrometry. Rolland AD, Prell JS. Trends Analyt Chem 116 282-291 (2019)
  3. Determining biophysical protein stability in lysates by a fast proteolysis assay, FASTpp. Minde DP, Minde DP, Maurice MM, Rüdiger SG. PLoS One 7 e46147 (2012)
  4. A Molecular Dynamics Study of Allosteric Transitions in Leishmania mexicana Pyruvate Kinase. Naithani A, Taylor P, Erman B, Walkinshaw MD. Biophys J 109 1149-1156 (2015)
  5. First-Principles Collision Cross Section Measurements of Large Proteins and Protein Complexes. McCabe JW, Mallis CS, Kocurek KI, Poltash ML, Shirzadeh M, Hebert MJ, Fan L, Walker TE, Zheng X, Jiang T, Dong S, Lin CW, Laganowsky A, Russell DH. Anal Chem 92 11155-11163 (2020)
  6. Functional energetic landscape in the allosteric regulation of muscle pyruvate kinase. 2. Fluorescence study. Herman P, Lee JC. Biochemistry 48 9456-9465 (2009)
  7. Evolutionary plasticity in the allosteric regulator-binding site of pyruvate kinase isoform PykA from Pseudomonas aeruginosa. Abdelhamid Y, Brear P, Greenhalgh J, Chee X, Rahman T, Welch M. J Biol Chem 294 15505-15516 (2019)


Articles citing this publication (25)

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  13. Sulphate removal induces a major conformational change in Leishmania mexicana pyruvate kinase in the crystalline state. Tulloch LB, Morgan HP, Hannaert V, Michels PA, Fothergill-Gilmore LA, Walkinshaw MD. J Mol Biol 383 615-626 (2008)
  14. Distinguishing the chemical moiety of phosphoenolpyruvate that contributes to allostery in muscle pyruvate kinase. Urness JM, Clapp KM, Timmons JC, Bai X, Chandrasoma N, Buszek KR, Fenton AW. Biochemistry 52 1-3 (2013)
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  24. Divalent cations in human liver pyruvate kinase exemplify the combined effects of complex-equilibrium and allosteric regulation. Martin TA, Fenton AW. Sci Rep 13 10557 (2023)
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