1A9C

GTP CYCLOHYDROLASE I (C110S MUTANT) IN COMPLEX WITH GTP

• PDB DOI: https://doi.org/10.2210/pdb1A9C/pdb

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


• Deposited: 1998-04-04 Released: 1999-05-11 
• Deposition Author(s): Auerbach, G., Nar, H., Bracher, A., Bacher, A., Huber, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.288 
• R-Value Work: 0.206 
• R-Value Observed: 0.206 

Literature

GTP Cyclohydrolase I in Complex with GTP at 2.1 A Resolution

Auerbach, G., Bracher, A., Nar, H., Fischer, M., Hoesl, C., Huber, R., Bacher, A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D5  (Explore in 3D)
Global Stoichiometry: Homo 10-mer - A10 

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

Biological Assembly 2  

Global Symmetry: Dihedral - D5  (Explore in 3D)
Global Stoichiometry: Homo 10-mer - A10 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 378.61 kDa 
• Atom Count: 26,670 
• Modelled Residue Count: 3,315 
• Deposited Residue Count: 3,315 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GTP CYCLOHYDROLASE I	A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	221	Escherichia coli	Mutation(s): 1  EC: 3.5.4.16
UniProt
Find proteins for P0A6T5 (Escherichia coli (strain K12)) Explore P0A6T5  Go to UniProtKB:  P0A6T5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GTP	AA [auth L], BA [auth M], CA [auth N], DA [auth O], P [auth A], Q [auth B], R [auth C], S [auth D], T [auth E], U [auth F], V [auth G], W [auth H], X [auth I], Y [auth J], Z [auth K]	GUANOSINE-5'-TRIPHOSPHATE C10 H16 N5 O14 P3 XKMLYUALXHKNFT-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.288 
• R-Value Work: 0.206 
• R-Value Observed: 0.206 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 313.9	α = 90
b = 226.8	β = 90
c = 131.4	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MOSFLM	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-05-11 
Deposition Author(s): Auerbach, G., Nar, H., Bracher, A., Bacher, A., Huber, R.

Revision History  

• Version 1.0: 1999-05-11
  Type: Initial release
  
• Version 1.1: 2008-03-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-03-14
  Changes: Advisory, Database references, Other
• Version 1.4: 2024-02-07
  Changes: Advisory, Data collection, Database references, Derived calculations