2NVB

Contribution of Pro275 to the Thermostability of the Alcohol Dehydrogenases (ADHs)

PDB DOI: https://doi.org/10.2210/pdb2NVB/pdb

Classification: OXIDOREDUCTASE
Organism(s): Thermoanaerobacter brockii
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2006-11-12 Released: 2007-11-13
Deposition Author(s): Goihberg, E., Tel-Or, S., Peretz, M., Frolow, F., Dym, O., Burstein, Y., Israel Structural Proteomics Center (ISPC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.80 Å
R-Value Free: 0.278
R-Value Work: 0.217

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.3 of the entry. See complete history.

Literature

Thermal stabilization of the protozoan Entamoeba histolytica alcohol dehydrogenase by a single proline substitution

Goihberg, E., Dym, O., Tel-Or, S., Shimon, L., Frolow, F., Peretz, M., Burstein, Y.

(2008) Proteins 72: 711-719

PubMed: 18260103 Search on PubMed
DOI: https://doi.org/10.1002/prot.21946
Primary Citation of Related Structures:
2NVB, 2OUI

PubMed Abstract:
Analysis of the three-dimensional structures of two closely related thermophilic and hyperthermophilic alcohol dehydrogenases (ADHs) from the respective microorganisms Entamoeba histolytica (EhADH1) and Thermoanaerobacter brockii (TbADH) suggested that a unique, strategically located proline residue (Pro275) at the center of the dimerization interface might be crucial for maintaining the thermal stability of TbADH. To assess the contribution of Pro275 to the thermal stability of the ADHs, we applied site-directed mutagenesis to replace Asp275 of EhADH1 with Pro (D275P-EhADH1) and conversely Pro275 of TbADH with Asp (P275D-TbADH). The results indicate that replacing Asp275 with Pro significantly enhances the thermal stability of EhADH1 (DeltaT(1/2)

Organizational Affiliation

Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.

Macromolecule Content

Total Structure Weight: 154.09 kDa
Atom Count: 10,772
Modelled Residue Count: 1,408
Deposited Residue Count: 1,408
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NADP-dependent alcohol dehydrogenase	A, B, C, D	352	Thermoanaerobacter brockii	Mutation(s): 1 Gene Names: adh EC: 1.1.1.2 (PDB Primary Data), 1.1.1.80 (UniProt)
UniProt
Find proteins for P14941 (Thermoanaerobacter brockii) Explore P14941 Go to UniProtKB: P14941
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P14941
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAP Query on NAP Download Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain H [auth B] SDF format, chain J [auth C] SDF format, chain L [auth D] MOL2 format, chain F [auth A] MOL2 format, chain H [auth B] MOL2 format, chain J [auth C] MOL2 format, chain L [auth D] mmCIF format, chain F [auth A] mmCIF format, chain H [auth B] mmCIF format, chain J [auth C] mmCIF format, chain L [auth D]	F [auth A], H [auth B], J [auth C], L [auth D]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C₂₁ H₂₈ N₇ O₁₇ P₃ XJLXINKUBYWONI-NNYOXOHSSA-N		Interactions Focus chain F [auth A] Focus chain H [auth B] Focus chain J [auth C] Focus chain L [auth D] Interactions & Density Focus chain F [auth A] Focus chain H [auth B] Focus chain J [auth C] Focus chain L [auth D]
ZN Query on ZN Download Ideal Coordinates CCD File SDF format, chain I [auth C] SDF format, chain E [auth A] SDF format, chain G [auth B] SDF format, chain K [auth D] MOL2 format, chain I [auth C] MOL2 format, chain E [auth A] MOL2 format, chain G [auth B] MOL2 format, chain K [auth D] mmCIF format, chain I [auth C] mmCIF format, chain E [auth A] mmCIF format, chain G [auth B] mmCIF format, chain K [auth D]	E [auth A], G [auth B], I [auth C], K [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain G [auth B] Focus chain I [auth C] Focus chain K [auth D] Interactions & Density Focus chain E [auth A] Focus chain G [auth B] Focus chain I [auth C] Focus chain K [auth D]