PDBsum entry 3net

Ligase

PDB id: 3net

Contents

Protein chains

431 a.a. *

Ligands

ACT

Waters ×111

* Residue conservation analysis

PDB id:

3net

Name:

Ligase

Title:

Crystal structure of histidyl-tRNA synthetase from nostoc sp. Pcc 7120

Structure:

Histidyl-tRNA synthetase. Chain: a, b. Synonym: histidine--tRNA ligase, hisrs. Engineered: yes

Source:

Nostoc sp. Pcc 7120. Organism_taxid: 103690. Gene: hiss, all5012. Expressed in: escherichia coli. Expression_system_taxid: 562.

Resolution:

2.70Å R-factor: 0.219 R-free: 0.265

Authors:

C.Chang,L.Bigelow,J.Carroll,A.Joachimiak,Midwest Center For Structural Genomics (Mcsg)

Key ref:

C.Chang et al. Crystal structure of histidyl-Trna synthetase from no sp. Pcc 7120. To be published, .

Date:

09-Jun-10 Release date: 04-Aug-10

Protein chains

Q8YMC2  (SYH_NOSS1) -  Histidine--tRNA ligase from Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)

Seq: 462 a.a.

Struc: 431 a.a.

Enzyme reactions

• Enzyme class: E.C.6.1.1.21 - histidine--tRNA ligase.
• Reaction: tRNA(His) + L-histidine + ATP = L-histidyl-tRNA(His) + AMP + diphosphate + H⁺

Molecule diagrams generated from .mol files obtained from the KEGG ftp site