ISDA

Deposition Date 2012-10-18

Release Date 2012-10-31

Last Version Date 2023-09-20

Entry Detail

PDB ID:

4HN2

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Crystal structure of the catalytic domain of human diphosphoinositol pentakisphosphate kinase 2 (PPIP5K2) in complex with AMPPNP and a substrate analog 5PA-IP5

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Inositol hexakisphosphate and diphosphoinositol-pentakisphosphate kinase 2
Gene (Uniprot):PPIP5K2
Chain IDs:A
Chain Length:330
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:O43314 Pfam ID:PF18086 EC:2.7.4.21

Ligand Molecules

0EJ

ANP

Primary Citation

First synthetic analogues of diphosphoinositol polyphosphates: interaction with PP-InsP(5) kinase.

Riley, A.M, Wang, H, Weaver, J.D, Shears, S.B, Potter, B.V.Show

Chem.Commun.(Camb.) 48 11292 11294 (2012)

PMID: 23032903 DOI: 10.1039/c2cc36044f

Abstact

We synthesised analogues of diphosphoinositol polyphosphates (PP-InsPs) in which the diphosphate is replaced by an α-phosphonoacetic acid (PA) ester. Structural analysis revealed that 5-PA-InsP(5) mimics 5-PP-InsP(5) binding to the kinase domain of PPIP5K2; both molecules were phosphorylated by the enzyme. PA-InsPs are promising candidates for further studies into the biology of PP-InsPs.

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Primary Citation of related structures