4YC4 image
Deposition Date 2015-02-19
Release Date 2015-07-15
Last Version Date 2024-05-08
Entry Detail
PDB ID:
4YC4
Keywords:
TRANSFERASE
Title:
Crystal structure of phosphatidyl inositol 4-kinase II alpha in complex with nucleotide analog
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Enterobacteria phage T4 (Taxon ID: 10665)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.58 Å
R-Value Free:
0.25
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 21 21 2
4YC4 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Phosphatidylinositol 4-kinase type 2-alpha,Lysozyme,Phosphatidylinositol 4-kinase type 2-alpha
Gene (Uniprot):e, PI4K2A
Chain IDs:A
Chain Length:556
Number of Molecules:1
Biological Source:Homo sapiens, Enterobacteria phage T4
UniProt ID:Q9BTU6,D9IEF7 Pfam ID:PF00454, PF00959 EC:3.2.1.17
Ligand Molecules
ADP
M59
Primary Citation
The high-resolution crystal structure of phosphatidylinositol 4-kinase II beta and the crystal structure of phosphatidylinositol 4-kinase II alpha containing a nucleoside analogue provide a structural basis for isoform-specific inhibitor design.
Acta Crystallogr.,Sect.D 71 1555 1563 (2015)
PMID: 26143926 DOI: 10.1107/S1399004715009505

Abstact

Phosphatidylinositol 4-phosphate (PI4P) is the most abundant monophosphoinositide in eukaryotic cells. Humans have four phosphatidylinositol 4-kinases (PI4Ks) that synthesize PI4P, among which are PI4K IIβ and PI4K IIα. In this study, two crystal structures are presented: the structure of human PI4K IIβ and the structure of PI4K IIα containing a nucleoside analogue. The former, a complex with ATP, is the first high-resolution (1.9 Å) structure of a PI4K. These structures reveal new details such as high conformational heterogeneity of the lateral hydrophobic pocket of the C-lobe and together provide a structural basis for isoform-specific inhibitor design.

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Primary Citation of related structures
4PLA