4IS2 | pdb_00004is2

Crystal structure of the apo form of a 3alpha-hydroxysteroid dehydrogenase (BaiA2) associated with secondary bile acid synthesis from Clostridium scindens VPI12708 at 1.90 A resolution

PDB DOI: https://doi.org/10.2210/pdb4IS2/pdb

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

Deposited: 2013-01-16 Released: 2013-04-03
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.90 Å
R-Value Free:
0.187 (Depositor), 0.195 (DCC)
R-Value Work:
0.162 (Depositor), 0.172 (DCC)
R-Value Observed:
0.163 (Depositor)

wwPDB Validation 3D Report Full Report

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This is version 1.5 of the entry. See complete history.

Literature

Crystal structure of the apo form of a 3alpha-hydroxysteroid dehydrogenase (BaiA2) associated with secondary bile acid synthesis from Clostridium scindens VPI12708 at 1.90 A resolution

Joint Center for Structural Genomics (JCSG)

To be published.

Macromolecule Content

Total Structure Weight: 29.38 kDa
Atom Count: 1,758
Modeled Residue Count: 215
Deposited Residue Count: 268
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bile acid 3-alpha hydroxysteroid dehydrogenase	A	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% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P19337
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CL Query on CL Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

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

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.90 Å
R-Value Free: 0.187 (Depositor), 0.195 (DCC)
R-Value Work: 0.162 (Depositor), 0.172 (DCC)
R-Value Observed: 0.163 (Depositor)

Diffraction Data:

Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.041	α = 90
b = 93.178	β = 90
c = 105.443	γ = 90

Software Package:

Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
SCALA	data scaling
REFMAC	refinement
MOSFLM	data reduction
SHELXD	phasing

Structure Validation

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View more in-depth experimental data

Entry History

Deposition Data

Released Date: 2013-04-03

Deposition Author(s):

Joint Center for Structural Genomics (JCSG)

Revision History (Full details and data files)

Version 1.0: 2013-04-03
Type: Initial release
Version 1.1: 2013-09-04
Changes: Structure summary
Version 1.2: 2017-11-15
Changes: Refinement description
Version 1.3: 2018-01-24
Changes: Database references
Version 1.4: 2023-02-01
Changes: Database references, Derived calculations
Version 1.5: 2024-11-20
Changes: Data collection, Structure summary

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.