7CZJ | pdb_00007czj

The Crystal Structure of Family 20 CBM of Maltotetraose-forming Amylase from Pseudomonas Saccharophila STB07

PDB DOI: https://doi.org/10.2210/pdb7CZJ/pdb

Classification: HYDROLASE
Organism(s): Roseateles saccharophilus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2020-09-08 Released: 2021-09-08
Deposition Author(s): Li, Z.F., Ban, X.F., Zhang, Z.Q., Li, C.M.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.50 Å
R-Value Free:
0.210 (Depositor), 0.197 (DCC)
R-Value Work:
0.185 (Depositor), 0.173 (DCC)
R-Value Observed:
0.187 (Depositor)

Starting Model: experimental
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This is version 1.2 of the entry. See complete history.

Literature

The Crystal Structure of Family 20 CBM of Maltotetraose-forming Amylase from Pseudomonas Saccharophila STB07

Zhang, Z.Q., Ban, X.F., Li, C.M., Gu, Z.B., Hong, Y., Cheng, L., Li, Z.F.

To be published.

Macromolecule Content

Total Structure Weight: 20.76 kDa
Atom Count: 1,739
Modeled Residue Count: 194
Deposited Residue Count: 194
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glucan 1,4-alpha-maltotetraohydrolase	A, B	97	Roseateles saccharophilus	Mutation(s): 0 Gene Names: mta EC: 3.2.1.60
UniProt
Find proteins for P22963 (Roseateles saccharophilus) Explore P22963 Go to UniProtKB: P22963
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P22963
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SO4 Query on SO4 Download:Ideal Coordinates CCD File SDF format, chain D [auth B] SDF format, chain C [auth A] MOL2 format, chain D [auth B] MOL2 format, chain C [auth A] mmCIF format, chain D [auth B] mmCIF format, chain C [auth A]	C [auth A], D [auth B]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth A] Focus chain D [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.50 Å
R-Value Free: 0.210 (Depositor), 0.197 (DCC)
R-Value Work: 0.185 (Depositor), 0.173 (DCC)
R-Value Observed: 0.187 (Depositor)

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.413	α = 90
b = 79.883	β = 90
c = 92.655	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
PDB_EXTRACT	data extraction

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2021-09-08

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31901628
National Natural Science Foundation of China (NSFC)	China	31722040

Revision History (Full details and data files)

Version 1.0: 2021-09-08
Type: Initial release
Version 1.1: 2023-11-29
Changes: Data collection, Refinement description
Version 1.2: 2024-10-23
Changes: 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.