1Z05 | pdb_00001z05

Crystal structure of the ROK family transcriptional regulator, homolog of E.coli MLC protein.

• PDB DOI: https://doi.org/10.2210/pdb1Z05/pdb

• Classification: TRANSCRIPTION
• Organism(s): Vibrio cholerae O1 biovar El Tor str. N16961
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2005-03-01 Released: 2005-03-08 
• Deposition Author(s): Minasov, G., Brunzelle, J.S., Shuvalova, L., Collart, F.R., Anderson, W.F., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.224 (Depositor), 0.226 (DCC) 
• R-Value Work: 
  0.185 (Depositor), 0.189 (DCC) 
• R-Value Observed: 
  0.187 (Depositor) 

Literature

Crystal structure of the ROK family transcriptional regulator, homolog of E.coli MLC protein.

Minasov, G., Brunzelle, J.S., Shuvalova, L., Collart, F.R., Anderson, W.F.

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.

Macromolecule Content 

• Total Structure Weight: 47.9 kDa 
• Atom Count: 3,641 
• Modeled Residue Count: 396 
• Deposited Residue Count: 429 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
transcriptional regulator, ROK family	A	429	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: AAF95155
UniProt
Find proteins for Q9KQJ1 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KQJ1  Go to UniProtKB:  Q9KQJ1

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	J [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
BME	I [auth A]	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.224 (Depositor), 0.226 (DCC) 
• R-Value Work:  0.185 (Depositor), 0.189 (DCC) 
• R-Value Observed: 0.187 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.719	α = 90
b = 93.719	β = 90
c = 118.291	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
PHENIX	phasing
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-03-08 
Deposition Author(s): Minasov, G., Brunzelle, J.S., Shuvalova, L., Collart, F.R., Anderson, W.F., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2005-03-08
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Source and taxonomy, Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2018-06-27
  Changes: Data collection, Database references
• Version 1.5: 2025-03-26
  Changes: Data collection, Database references, Derived calculations, Structure summary