2IUO | pdb_00002iuo

Site Directed Mutagenesis of Key Residues Involved in the Catalytic Mechanism of Cyanase

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 
    0.208 (Depositor) 
  • R-Value Work: 
    0.149 (Depositor) 
  • R-Value Observed: 
    0.152 (Depositor) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 2IUO

This is version 1.3 of the entry. See complete history. 

Literature

A Twin Set of Low Pka Arginines Ensures the Concerted Acid Base Catalytic Mechanism of Cyanase

Guilloton, M., Walsh, M.A., Joachimiak, A., Anderson, P.M.

To be published.

Macromolecule Content 

  • Total Structure Weight: 173.78 kDa 
  • Atom Count: 14,230 
  • Modeled Residue Count: 1,560 
  • Deposited Residue Count: 1,560 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:
|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
CYANATE HYDRATASE
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J
156Escherichia coliMutation(s): 1 
EC: 4.2.1.104
UniProt
Find proteins for P00816 (Escherichia coli (strain K12))
Explore P00816 
Go to UniProtKB:  P00816
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00816
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SO4

Query on SO4


Download:Ideal Coordinates CCD File
AA [auth D]
AB [auth J]
BA [auth D]
BB [auth J]
EA [auth E]
AA [auth D],
AB [auth J],
BA [auth D],
BB [auth J],
EA [auth E],
FA [auth E],
GA [auth E],
JA [auth F],
KA [auth F],
M [auth A],
N [auth A],
NA [auth G],
OA [auth G],
Q [auth B],
R [auth B],
RA [auth H],
SA [auth H],
V [auth C],
VA [auth I],
W [auth C],
WA [auth I],
Z [auth D],
ZA [auth J]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
BR

Query on BR


Download:Ideal Coordinates CCD File
CA [auth E]
HA [auth F]
K [auth A]
LA [auth G]
O [auth B]
CA [auth E],
HA [auth F],
K [auth A],
LA [auth G],
O [auth B],
PA [auth H],
T [auth C],
TA [auth I],
X [auth D],
XA [auth J]
BROMIDE ION
Br
CPELXLSAUQHCOX-UHFFFAOYSA-M
AZI

Query on AZI


Download:Ideal Coordinates CCD File
S [auth B]AZIDE ION
N3
IVRMZWNICZWHMI-UHFFFAOYSA-N
CL

Query on CL


Download:Ideal Coordinates CCD File
DA [auth E]
IA [auth F]
L [auth A]
MA [auth G]
P [auth B]
DA [auth E],
IA [auth F],
L [auth A],
MA [auth G],
P [auth B],
QA [auth H],
U [auth C],
UA [auth I],
Y [auth D],
YA [auth J]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free:  0.208 (Depositor) 
  • R-Value Work:  0.149 (Depositor) 
  • R-Value Observed: 0.152 (Depositor) 
Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.6α = 70.02
b = 80.75β = 71.81
c = 82.28γ = 66.34
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-08
    Type: Initial release
  • Version 1.1: 2014-02-05
    Changes: Database references, Derived calculations, Non-polymer description, Other, Structure summary, Version format compliance
  • Version 1.2: 2019-05-08
    Changes: Data collection, Experimental preparation, Other
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description