9IQ5 | pdb_00009iq5

CatM, SnoaL-like protein

• PDB DOI: https://doi.org/10.2210/pdb9IQ5/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Streptantibioticus cattleyicolor NRRL 8057 = DSM 46488
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2024-07-12 Released: 2025-07-16 
• Deposition Author(s): Zhang, B., Zhu, A., Ma, X.X., Ge, H.M.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.06 Å
• R-Value Free: 
  0.270 (Depositor), 0.269 (DCC) 
• R-Value Work: 
  0.236 (Depositor), 0.237 (DCC) 
• R-Value Observed: 
  0.238 (Depositor) 

Starting Model: experimental

Literature

Tandem Michael addition and Knoevenagel condensation catalyzed by NTF2-Like Enzymes as iminium catalysis

Liu, C.L., Zhang, B., Ge, H.M.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 29.1 kDa 
• Atom Count: 1,873 
• Modeled Residue Count: 239 
• Deposited Residue Count: 264 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SnoaL-like domain-containing protein	A, B	132	Streptantibioticus cattleyicolor NRRL 8057 = DSM 46488	Mutation(s): 0  Gene Names: SCATT_01420
UniProt
Find proteins for G8X1I4 (Streptantibioticus cattleyicolor (strain ATCC 35852 / DSM 46488 / JCM 4925 / NBRC 14057 / NRRL 8057)) Explore G8X1I4  Go to UniProtKB:  G8X1I4

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.06 Å
• R-Value Free:  0.270 (Depositor), 0.269 (DCC) 
• R-Value Work:  0.236 (Depositor), 0.237 (DCC) 
• R-Value Observed: 0.238 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.092	α = 90
b = 61.985	β = 90
c = 99.609	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-07-16 
Deposition Author(s): Zhang, B., Zhu, A., Ma, X.X., Ge, H.M.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	22277051,81925033, 22193071

Revision History  

• Version 1.0: 2025-07-16
  Type: Initial release