ISDA

Entry Detail

PDB ID:

4L00

Keywords:

TRANSFERASE

Title:

Crystal structure of the apo Jak1 pseudokinase domain

Biological Source:

Source Organism:

Homo sapiens

PDB Version:

Deposition Date:

2013-05-30

Release Date:

2013-09-04

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.20

R-Value Work:

0.16

R-Value Observed:

0.17

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Tyrosine-protein kinase JAK1
Chain IDs:A, B
Chain Length:304
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P23458 Pfam ID:PF07714 EC:2.7.10.2

Primary Citation

Structure of a pseudokinase-domain switch that controls oncogenic activation of Jak kinases.

Toms, A.V, Deshpande, A, McNally, R, Jeong, Y, Rogers, J.M, Kim, C.U, Gruner, S.M, Ficarro, S.B, Marto, J.A, Sattler, M, Griffin, J.D, Eck, M.J.Show

Nat.Struct.Mol.Biol. 20 1221 1223 (2013)

PMID: 24013208 DOI: 10.1038/nsmb.2673

Abstact

The V617F mutation in the Jak2 pseudokinase domain causes myeloproliferative neoplasms, and the equivalent mutation in Jak1 (V658F) is found in T-cell leukemias. Crystal structures of wild-type and V658F-mutant human Jak1 pseudokinase reveal a conformational switch that remodels a linker segment encoded by exon 12, which is also a site of mutations in Jak2. This switch is required for V617F-mediated Jak2 activation and possibly for physiologic Jak activation.

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Primary Citation of related structures