Jumonji domain-containing protein: Difference between revisions
Michal Harel (talk | contribs) No edit summary |
Michal Harel (talk | contribs) No edit summary |
||
(20 intermediate revisions by 4 users not shown) | |||
Line 1: | Line 1: | ||
<StructureSection load=' | <StructureSection load='' size='350' side='right' caption='Structure of human Jumonji domain-containing protein 2a catalytic domain complex with oxalylglycine, Fe+2 ion (orange), Zn+2 ion (grey) and histone H3 peptide (aqua) with trimethyllysine (magenta) (PDB code [[2p5b]]).' scene='59/596434/Cv/1'> | ||
SEE ALSO [[Lysine-specific histone demethylase]] | |||
== Function == | == Function == | ||
*'''Jumonji domain-containing protein 2a''' (Jmjd2a) or '''KDM4A''' or '''Lysine-specific demethylase''' catalyzes the demethylation of trimethylated histone H3 at lysine residues 9 and 36 producing the dimethylated form. Jmjd2a domains contain: N-terminal, catalytic core (residues 1-350), 2 TUDOR domains which recognize dimethylated Arg (residues 895-1011) , 2 PHD-type zinc fingers and C-terminal domain. Jmjd2a is Fe+2 and α-ketoglutarate dependent. Methylation of histones in the chromatin is involved in regulation of gene activity, chromatin structure and epigenetic memory<ref>PMID:16677698</ref>.<br /> | |||
'''Jumonji domain-containing protein | *'''Jumonji domain-containing protein 2b''' (Jmjd2b) or '''KDM4B''' and '''Jumonji domain-containing protein 2d''' (Jmjd2d) or '''KDM4D''' catalyze the demethylation of trimethylated histone H3 at lysine residues 9 producing the dimethylated form. <br /> | ||
*'''Jumonji domain-containing protein 3''' (Jmjd3) or '''KDM6B''' and '''Jumonji domain-containing protein 2d''' (Jmjd2d) or '''KDM4D''' catalyze the demethylation of trimethylated histone H3 at lysine residues 27 producing the dimethylated form<ref>PMID:22308433</ref>. <br /> | |||
*'''Jumonji domain-containing protein 5''' (Jmjd5) or '''KDM8''' and '''Jumonji domain-containing protein 6''' (Jmjd6) function as histone demethylase and as a protein hydroxylase.<br /> | |||
== Disease == | == Disease == | ||
Jmjd6 serves as a receptor allowing the foot-and-mouth virus to infect cells<ref>PMID:26896934</ref>. | |||
== Structural highlights == | == Structural highlights == | ||
Jmjd2a uses 9 residues for interaction with the methylated peptide and 4 residues are involved with binding to the peptide's trimethyllysine moiety. | Jmjd2a uses <scene name='59/596434/Cv/7'>9 residues for interaction with the methylated peptide</scene> and <scene name='59/596434/Cv/8'>4 residues are involved with binding to the peptide's trimethyllysine moiety</scene>. An <scene name='59/596434/Cv/9'>O2 molecules are recruited into the catalytic center</scene><ref>PMID:17567753</ref>. Water molecules shown as red spheres. | ||
= | <scene name='59/596434/Cv/10'>Zn coordination site</scene>. | ||
==3D structures of jumonji domain-containing protein == | |||
[[Jumonji domain-containing protein 3D structures]] | |||
</StructureSection> | |||
== References == | == References == |