4U3S | pdb_00004u3s

Crystal structure of Coh3ScaB-XDoc_M1ScaA complex: A N-terminal interface mutant of type II Cohesin-X-Dockerin complex from Acetivibrio cellulolyticus

• PDB DOI: https://doi.org/10.2210/pdb4U3S/pdb

• Classification: PROTEIN BINDING
• Organism(s): Acetivibrio cellulolyticus
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2014-07-22 Released: 2015-07-29 
• Deposition Author(s): Alves, V.D., Cameron, K., Najmudin, S.H., Fontes, C.M.G.A.
• Funding Organization(s): FCT

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 
  0.206 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.171 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.173 (Depositor) 

Starting Models: experimental

Literature

Crystal structure of Coh3ScaB-XDoc_M1ScaA complex: A N-terminal interface mutant of type II Cohesin-X-Dockerin complex from Acetivibrio cellulolyticus

Alves, V.D., Cameron, K., Najmudin, S.H., Fontes, C.M.G.A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Macromolecule Content 

• Total Structure Weight: 38.45 kDa 
• Atom Count: 2,843 
• Modeled Residue Count: 323 
• Deposited Residue Count: 352 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cellulosomal scaffoldin adaptor protein B	A	168	Acetivibrio cellulolyticus	Mutation(s): 0  Gene Names: scaB
UniProt
Find proteins for Q7WYN3 (Acetivibrio cellulolyticus) Explore Q7WYN3  Go to UniProtKB:  Q7WYN3

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cellulosomal scaffoldin	B	184	Acetivibrio cellulolyticus	Mutation(s): 1  Gene Names: cipV EC: 3.2.1.4
UniProt
Find proteins for Q9RPL0 (Acetivibrio cellulolyticus) Explore Q9RPL0  Go to UniProtKB:  Q9RPL0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NHE	C [auth A], D [auth A], G [auth B]	2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID C8 H17 N O3 S MKWKNSIESPFAQN-UHFFFAOYSA-N
CA	E [auth B], F [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free:  0.206 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.171 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.173 (Depositor) 

Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.32	α = 90
b = 72.32	β = 90
c = 231.49	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
BALBES	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2015-07-29 
Deposition Author(s): Alves, V.D., Cameron, K., Najmudin, S.H., Fontes, C.M.G.A.

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Funding Organization	Location	Grant Number
FCT	Portugal	EXPL/BIA-MIC/1176/2012

Revision History  

• Version 1.0: 2015-07-29
  Type: Initial release
  
• Version 1.1: 2023-12-20
  Changes: Data collection, Database references, Refinement description