23AC | pdb_000023ac

Crystal structure of TsaGH11

PDB DOI: https://doi.org/10.2210/pdb23AC/pdb

Classification: HYDROLASE
Organism(s): Thermoanaerobacterium saccharolyticum
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2026-01-29 Released: 2026-02-11
Deposition Author(s): Nam, K.H.
Funding Organization(s): National Research Foundation (NRF, Korea)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.40 Å
R-Value Free:
0.188 (Depositor), 0.188 (DCC)
R-Value Work:
0.174 (Depositor), 0.174 (DCC)
R-Value Observed:
0.175 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Crystal structure of TsaGH11

Nam, K.H.

To be published.

Macromolecule Content

Total Structure Weight: 42.26 kDa
Atom Count: 3,384
Modeled Residue Count: 367
Deposited Residue Count: 386
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Endo-1,4-beta-xylanase	A, B	193	Thermoanaerobacterium saccharolyticum	Mutation(s): 0 Gene Names: Tsac_0897 EC: 3.2.1.8
UniProt
Find proteins for I3VTR8 (Thermoanaerobacterium saccharolyticum (strain DSM 8691 / JW/SL-YS485)) Explore I3VTR8 Go to UniProtKB: I3VTR8
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	I3VTR8
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ACT Query on ACT Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain C [auth A]	C [auth A], D [auth A]	ACETATE ION C₂ H₃ O₂ QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain C [auth A] Focus chain D [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.40 Å
R-Value Free: 0.188 (Depositor), 0.188 (DCC)
R-Value Work: 0.174 (Depositor), 0.174 (DCC)
R-Value Observed: 0.175 (Depositor)

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.374	α = 90
b = 73.374	β = 90
c = 165.947	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
xia2	data scaling
xia2	data reduction
MOLREP	phasing
PDB_EXTRACT	data extraction

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2026-02-11

Deposition Author(s):

Funding Organization	Location	Grant Number
National Research Foundation (NRF, Korea)	Korea, Republic Of	NRF-2021R1I1A1A01050838

Revision History (Full details and data files)

Version 1.0: 2026-02-11
Type: Initial release

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.