6K53

A variant of metagenome-derived GH6 cellobiohydrolase, HmCel6A (P88S/L230F/F414S)

• PDB DOI: https://doi.org/10.2210/pdb6K53/pdb

• Classification: HYDROLASE
• Organism(s): metagenome
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-05-28 Released: 2020-06-03 
• Deposition Author(s): Baba, S., Takeda, M., Okuma, J., Hirose, Y., Nishimura, A., Takata, M., Oda, K., Shibata, D., Kondo, Y., Kumasaka, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.89 Å
• R-Value Free: 0.189 
• R-Value Work: 0.160 
• R-Value Observed: 0.162 

Literature

A hyperthermophilic GH6 cellobiohydrolase (HmCel6A) from a hot spring metagenomic data

Takeda, M., Baba, S., Okuma, J., Hirose, Y., Nishimura, A., Takata, M., Oda, K., Shibata, D., Kondo, Y., Kumasaka, T.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 47.07 kDa 
• Atom Count: 4,047 
• Modelled Residue Count: 428 
• Deposited Residue Count: 428 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GH6 cellobiohydrolase, HMCEL6A	A	428	metagenome	Mutation(s): 0  EC: 3.2.1.91

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FLC	D [auth A]	CITRATE ANION C6 H5 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-K
LI	B [auth A], C [auth A]	LITHIUM ION Li HBBGRARXTFLTSG-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.89 Å
• R-Value Free: 0.189 
• R-Value Work: 0.160 
• R-Value Observed: 0.162 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 141.885	α = 90
b = 141.885	β = 90
c = 224.099	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-06-03 
Deposition Author(s): Baba, S., Takeda, M., Okuma, J., Hirose, Y., Nishimura, A., Takata, M., Oda, K., Shibata, D., Kondo, Y., Kumasaka, T.

Revision History  

• Version 1.0: 2020-06-03
  Type: Initial release
  
• Version 1.1: 2023-11-22
  Changes: Data collection, Database references, Derived calculations, Refinement description