Unknown

Dataset Information

0

The Jumonji-C oxygenase JMJD7 catalyzes (3S)-lysyl hydroxylation of TRAFAC GTPases.


ABSTRACT: Biochemical, structural and cellular studies reveal Jumonji-C (JmjC) domain-containing 7 (JMJD7) to be a 2-oxoglutarate (2OG)-dependent oxygenase that catalyzes (3S)-lysyl hydroxylation. Crystallographic analyses reveal JMJD7 to be more closely related to the JmjC hydroxylases than to the JmjC demethylases. Biophysical and mutation studies show that JMJD7 has a unique dimerization mode, with interactions between monomers involving both N- and C-terminal regions and disulfide bond formation. A proteomic approach identifies two related members of the translation factor (TRAFAC) family of GTPases, developmentally regulated GTP-binding proteins 1 and 2 (DRG1/2), as activity-dependent JMJD7 interactors. Mass spectrometric analyses demonstrate that JMJD7 catalyzes Fe(II)- and 2OG-dependent hydroxylation of a highly conserved lysine residue in DRG1/2; amino-acid analyses reveal that JMJD7 catalyzes (3S)-lysyl hydroxylation. The functional assignment of JMJD7 will enable future studies to define the role of DRG hydroxylation in cell growth and disease.

SUBMITTER: Markolovic S 

PROVIDER: S-EPMC6027965 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications


Biochemical, structural and cellular studies reveal Jumonji-C (JmjC) domain-containing 7 (JMJD7) to be a 2-oxoglutarate (2OG)-dependent oxygenase that catalyzes (3S)-lysyl hydroxylation. Crystallographic analyses reveal JMJD7 to be more closely related to the JmjC hydroxylases than to the JmjC demethylases. Biophysical and mutation studies show that JMJD7 has a unique dimerization mode, with interactions between monomers involving both N- and C-terminal regions and disulfide bond formation. A pr  ...[more]

Similar Datasets

2018-03-20 | MSV000082185 | MassIVE
| S-EPMC3585044 | biostudies-literature
| S-EPMC3991326 | biostudies-literature
| S-EPMC9245515 | biostudies-literature
| S-EPMC4972389 | biostudies-literature
| S-EPMC1539980 | biostudies-literature
| S-EPMC8752792 | biostudies-literature
| S-EPMC3109874 | biostudies-literature
| S-EPMC4847768 | biostudies-literature
| S-EPMC1130780 | biostudies-other