4IS3

Crystal structure of a 3alpha-hydroxysteroid dehydrogenase (BaiA2) associated with secondary bile acid synthesis from Clostridium scindens VPI12708 in complex with a putative NAD(+)-OH- adduct at 2.0 A resolution

PDB DOI: https://doi.org/10.2210/pdb4IS3/pdb

Classification: OXIDOREDUCTASE
Organism(s): [Clostridium] scindens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2013-01-16 Released: 2013-04-24
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.182
R-Value Work: 0.152
R-Value Observed: 0.153

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.4 of the entry. See complete history.

Literature

Crystal structure of a 3alpha-hydroxysteroid dehydrogenase (BaiA2) associated with secondary bile acid synthesis from Clostridium scindens VPI12708 in complex with a putative NAD(+)-OH- adduct at 2.0 A resolution

Joint Center for Structural Genomics (JCSG)

To be published.

Macromolecule Content

Total Structure Weight: 120.15 kDa
Atom Count: 8,546
Modelled Residue Count: 997
Deposited Residue Count: 1,072
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bile acid 3-alpha hydroxysteroid dehydrogenase	A, B, C, D	268	[Clostridium] scindens	Mutation(s): 0 Gene Names: baiA, BAIA2 EC: 1.1.1.395
UniProt
Find proteins for P19337 (Clostridium scindens (strain JCM 10418 / VPI 12708)) Explore P19337 Go to UniProtKB: P19337
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P19337
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAD Query on NAD Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain H [auth B] SDF format, chain K [auth C] SDF format, chain M [auth D] MOL2 format, chain E [auth A] MOL2 format, chain H [auth B] MOL2 format, chain K [auth C] MOL2 format, chain M [auth D] mmCIF format, chain E [auth A] mmCIF format, chain H [auth B] mmCIF format, chain K [auth C] mmCIF format, chain M [auth D]	E [auth A], H [auth B], K [auth C], M [auth D]	NICOTINAMIDE-ADENINE-DINUCLEOTIDE C₂₁ H₂₇ N₇ O₁₄ P₂ BAWFJGJZGIEFAR-NNYOXOHSSA-N		Interactions Focus chain E [auth A] Focus chain H [auth B] Focus chain K [auth C] Focus chain M [auth D] Interactions & Density Focus chain E [auth A] Focus chain H [auth B] Focus chain K [auth C] Focus chain M [auth D]
ACT Query on ACT Download Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain J [auth B] MOL2 format, chain G [auth A] MOL2 format, chain J [auth B] mmCIF format, chain G [auth A] mmCIF format, chain J [auth B]	G [auth A], J [auth B]	ACETATE ION C₂ H₃ O₂ QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain G [auth A] Focus chain J [auth B] Interactions & Density Focus chain G [auth A] Focus chain J [auth B]
UNL Query on UNL Download Ideal Coordinates CCD File	F [auth A], I [auth B], L [auth C], N [auth D]	Unknown ligand QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain F [auth A] Focus chain I [auth B] Focus chain L [auth C] Focus chain N [auth D] Interactions & Density Focus chain F [auth A] Focus chain I [auth B] Focus chain L [auth C] Focus chain N [auth D]

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE Query on MSE	A, B, C, D	L-PEPTIDE LINKING	C₅ H₁₁ N O₂ Se		MET

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.182
R-Value Work: 0.152
R-Value Observed: 0.153
Space Group: P 1 2₁ 1
Diffraction Data: https://doi.org/10.18430/M34IS3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.512	α = 90
b = 92.891	β = 90.78
c = 82.915	γ = 90

Software Package:

Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
XSCALE	data scaling
BUSTER-TNT	refinement
XDS	data reduction
SHELXD	phasing
BUSTER	refinement