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RIOK2

Gene
RIOK2
Protein
Serine/threonine-protein kinase RIO2
Organism
Homo sapiens
Length
552 amino acids
Function
Serine/threonine-protein kinase involved in the final steps of cytoplasmic maturation of the 40S ribosomal subunit. Involved in export of the 40S pre-ribosome particles (pre-40S) from the nucleus to the cytoplasm. Its kinase activity is required for the release of NOB1, PNO1 and LTV1 from the late pre-40S and the processing of 18S-E pre-rRNA to the mature 18S rRNA (PubMed:19564402). Regulates the timing of the metaphase-anaphase transition during mitotic progression, and its phosphorylation, most likely by PLK1, regulates this function (PubMed:21880710).
Similarity
Belongs to the protein kinase superfamily. RIO-type Ser/Thr kinase family.
Mass
63.283 kDa
Sequence
MGKVNVAKLRYMSRDDFRVLTAVEMGMKNHEIVPGSLIASIASLKHGGCNKVLRELVKHKLIAWERTKTVQGYRLTNAGYDYLALKTLSSRQVVESVGNQMGVGKESDIYIVANEEGQQFALKLHRLGRTSFRNLKNKRDYHKHRHNVSWLYLSRLSAMKEFAYMKALYERKFPVPKPIDYNRHAVVMELINGYPLCQIHHVEDPASVYDEAMELIVKLANHGLIHGDFNEFNLILDESDHITMIDFPQMVSTSHPNAEWYFDRDVKCIKDFFMKRFSYESELFPTFKDIRREDTLDVEVSASGYTKEMQADDELLHPLGPDDKNIETKEGSEFSFSDGEVAEKAEVYGSENESERNCLEESEGCYCRSSGDPEQIKEDSLSEESADARSFEMTEFNQALEEIKGQVVENNSVTEFSEEKNRTENYNRQDGQRVQGGVPAGSDEYEDECPHLIALSSLNREFRPFRDEENVGAMNQYRTRTLSITSSGSAVSCSTIPPELVKQKVKRQLTKQQKSAVRRRLQKGEANIFTKQRRENMQNIKSSLEAASFWGE

Gene
Riok2
Protein
Serine/threonine-protein kinase RIO2
Organism
Mus musculus
Length
547 amino acids
Function
Serine/threonine-protein kinase involved in the final steps of cytoplasmic maturation of the 40S ribosomal subunit. Involved in export of the 40S pre-ribosome particles (pre-40S) from the nucleus to the cytoplasm. Its kinase activity is required for the release of NOB1, PNO1 and LTV1 from the late pre-40S and the processing of 18S-E pre-rRNA to the mature 18S rRNA. May regulate the timing of the metaphase-anaphase transition during mitotic progression, and its phosphorylation, may regulates this function.
Similarity
Belongs to the protein kinase superfamily. RIO-type Ser/Thr kinase family.
Mass
62.49 kDa
Sequence
MGKVNVAKLRYMSRDDFRVLTAVEMGMKNHEIVPCSLIASIASLKHGGCNKILRELVKHKLIAWERTKTVQGYRLTNAGYDYLALKTLSSRQVVESVGNQMGVGKESDIYIVANEAGQQLALKLHRLGRTSFRNLKNKRDYHKHRHNVSWLYLSRLSAMKEFAYMKALYERKFPVPKPIDYNRHAVIMELINGYPLCQIHHVEDPASVYDEAMELIVKLGNHGLIHGDFNEFNLMLDKDDHITMIDFPQMVSTSHPNAEWYFDRDVKCIREFFMKRFSYESELYPTFSDIRKEDSLDVEVSASGYTKEMQADDELLHPVGPDDKITETEEDSDFTFSDEEMLEKAKVWRSELEKEADPADESGGSWCCSSTDSKQIKDGGLPEESAHVSSFEVTALSQAVEEMERQVLPHRSVTEFSEESRRTENDGQPGQRSPAGSEDCDDEPPHLIALSSVNREFRPFRDEESMSSVTRHRTRTLSVTSAGSALSCSTIPPELVKQKVKRQLTRQQKAAARRRLQKGEANVFTKQRRENMQNIKSSLEAASFWGD