ISDA: 2AZ3

Deposition Date 2005-09-09

Release Date 2005-12-20

Last Version Date 2023-10-25

Entry Detail

PDB ID:

2AZ3

Keywords:

TRANSFERASE

Title:

Structure of a halophilic nucleoside diphosphate kinase from Halobacterium salinarum in complex with CDP

Biological Source:

Source Organism:

Halobacterium salinarum (Taxon ID: 2242)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.27

R-Value Work:

0.19

R-Value Observed:

0.20

Space Group:

C 1 2 1

Download Validation Report

Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nucleoside diphosphate kinase
Gene (Uniprot):ndk
Chain IDs:A, B, C, D, E, F, G, H, I
Chain Length:164
Number of Molecules:9
Biological Source:Halobacterium salinarum

UniProt ID:P61136 Pfam ID:PF00334 EC:2.7.4.6

Ligand Molecules

CDP

Primary Citation

Structure of a halophilic nucleoside diphosphate kinase from Halobacterium salinarum

Besir, H, Zeth, K, Bracher, A, Heider, U, Ishibashi, M, Tokunaga, M, Oesterhelt, D.Show

Febs Lett. 579 6595 6600 (2005)

PMID: 16293253 DOI: 10.1016/j.febslet.2005.10.052

Abstact

Nucleoside diphosphate kinase from the halophilic archaeon Halobacterium salinarum was crystallized in a free state and a substrate-bound form with CDP. The structures were solved to a resolution of 2.35 and 2.2A, respectively. Crystals with the apo-form were obtained with His6-tagged enzyme, whereas the untagged form was used for co-crystallization with the nucleotide. Crosslinking under different salt and pH conditions revealed a stronger oligomerization tendency for the tagged protein at low and high salt concentrations. The influence of the His6-tag on the halophilic nature of the enzyme is discussed on the basis of the observed structural properties.

Legend

Protein

Chemical

Disease

Primary Citation of related structures

Abstact

Feedback Form