7UXB

Human triosephosphate isomerase mutant G122R

PDB DOI: https://doi.org/10.2210/pdb7UXB/pdb

Classification: ISOMERASE
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2022-05-05 Released: 2023-05-24
Deposition Author(s): Romero, J.M.
Funding Organization(s): Agencia Nacional de Promocion Cientifica y Tecnologica (FONCYT)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.228
R-Value Work: 0.171
R-Value Observed: 0.174

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.2 of the entry. See complete history.

Literature

Structural analysis of the TPI-Manchester, a thermolabile variant of human triosephosphate isomerase.

Romero, J.M.

(2024) Arch Biochem Biophys 761: 110156-110156

PubMed: 39299479 Search on PubMed
DOI: https://doi.org/10.1016/j.abb.2024.110156
Primary Citation of Related Structures:
7UXB, 7UXV

PubMed Abstract:
Human triosephosphate isomerase G122R, also known as TPI-Manchester, is a thermolabile variant detected in a screening of more than 3400 individuals from a population in Ann Arbor, Michigan. Here, the crystallographic structure of G122R was solved to determine the molecular basis of its thermal stability. Structural analysis revealed an increase in the flexibility of residues at the dimer interface, even though R122 is about 20 Å away, suggesting that long-range electrostatic interactions may play a key role in the mutation effect.

Organizational Affiliation

Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC, Universidad Nacional de Córdoba - Consejo Nacional de Investigaciones Científicas y Técnicas (UNC-CONICET)), Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina. Electronic address: jorge.romero@unc.edu.ar.

Macromolecule Content

Total Structure Weight: 54.03 kDa
Atom Count: 4,148
Modelled Residue Count: 493
Deposited Residue Count: 498
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Triosephosphate isomerase	A, B	249	Homo sapiens	Mutation(s): 1 Gene Names: TPI1, TPI EC: 5.3.1.1 (PDB Primary Data), 4.2.3.3 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P60174 (Homo sapiens) Explore P60174 Go to UniProtKB: P60174
PHAROS: P60174 GTEx: ENSG00000111669
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P60174
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth B] SDF format, chain G [auth B] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth B] MOL2 format, chain G [auth B] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth B] mmCIF format, chain G [auth B]	D [auth A], E [auth A], F [auth B], G [auth B]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth B] Focus chain G [auth B] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth B] Focus chain G [auth B]
IPA Query on IPA Download Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A] mmCIF format, chain C [auth A]	C [auth A]	ISOPROPYL ALCOHOL C₃ H₈ O KFZMGEQAYNKOFK-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]