9UM7 | pdb_00009um7

CaPETaseM9 SEC loop of 12CL variant

• PDB DOI: https://doi.org/10.2210/pdb9UM7/pdb

• Classification: HYDROLASE
• Organism(s): Cryptosporangium aurantiacum
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2025-04-21 Released: 2026-04-29 
• Deposition Author(s): Kim, K., Ki, D., Park, J.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.26 Å
• R-Value Free: 
  0.184 (Depositor), 0.190 (DCC) 
• R-Value Work: 
  0.165 (Depositor), 0.174 (DCC) 
• R-Value Observed: 
  0.166 (Depositor) 

Starting Model: experimental

Literature

Modulation of a Non-Catalytic Loop Enhances Productive Access and PET Depolymerization Activity in CaPETase

Kim, K., Ki, D., Park, J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 57.98 kDa 
• Atom Count: 4,383 
• Modeled Residue Count: 524 
• Deposited Residue Count: 532 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cutinase	A, B	266	Cryptosporangium aurantiacum	Mutation(s): 18  Gene Names: SAMN05443668_101498
UniProt
Find proteins for A0A1M7II12 (Cryptosporangium aurantiacum) Explore A0A1M7II12  Go to UniProtKB:  A0A1M7II12

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO (Subject of Investigation/LOI)	C [auth A], D [auth A], E [auth B], F [auth B], G [auth B], H [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.26 Å
• R-Value Free:  0.184 (Depositor), 0.190 (DCC) 
• R-Value Work:  0.165 (Depositor), 0.174 (DCC) 
• R-Value Observed: 0.166 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.952	α = 90
b = 77.952	β = 90
c = 350.627	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data scaling
XDS	data reduction
MOLREP	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-04-29 
Deposition Author(s): Kim, K., Ki, D., Park, J.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-04-29
  Type: Initial release