9LMA | pdb_00009lma

Crystal structure of Ornithine decarboxylase H346A mutant without PLP

• PDB DOI: https://doi.org/10.2210/pdb9LMA/pdb

• Classification: LYASE
• Organism(s): Lacticaseibacillus rhamnosus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2025-01-18 Released: 2025-12-24 
• Deposition Author(s): Kim, D.S., Park, J.H., Adiko, N.N., Seo, H.T.
• Funding Organization(s): National Research Foundation (NRF, Korea)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 
  0.244 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.202 (Depositor), 0.211 (DCC) 
• R-Value Observed: 
  0.204 (Depositor) 

Starting Model: experimental

Literature

Insight into the functional and structural relationship of ornithine decarboxylase and its mutants from Lacticaseibacillus rhamnosus.

Adiko, N.N., Seo, H.T., Ki, D.W., Park, J.H., Kim, D.S.

(2025) Bull Korean Chem Soc 46: 730-742

• DOI: https://doi.org/10.1002/bkcs.70035

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: 150.74 kDa 
• Atom Count: 11,177 
• Modeled Residue Count: 1,385 
• Deposited Residue Count: 1,386 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ornithine decarboxylase	A, B	693	Lacticaseibacillus rhamnosus	Mutation(s): 1  Gene Names: LRHMDP2_881 EC: 4.1.1.17

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free:  0.244 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.202 (Depositor), 0.211 (DCC) 
• R-Value Observed: 0.204 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.004	α = 107.6
b = 72.307	β = 114.56
c = 78.006	γ = 100.37

Software Package:

Software Name	Purpose
REFMAC	refinement
Coot	model building
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-24 
Deposition Author(s): Kim, D.S., Park, J.H., Adiko, N.N., Seo, H.T.

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

Revision History  

• Version 1.0: 2025-12-24
  Type: Initial release