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Overview

Uniprot IDQ9UQ88
Protein NameCyclin-dependent kinase 11A
Gene NameCDK11A
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
20 LDEILQEKKRRKEQE
21 DEILQEKKRRKEQEE
213 MREDYSDKVKASHWS
412 ELKQELPKYLPALQG

Function

Cyclin-dependent protein kinase that acts as a regulator of transcription and pre-mRNA splicing (PubMed:12501247, PubMed:32367068, PubMed:36104565, PubMed:40858114). Acts as a key regulator of pre-mRNA splicing by mediating phosphorylation of SF3B1, enabling the association between SF3B1 and U5 and U6 snRNAs in the activated spliceosome, thereby promoting spliceosome assembly (PubMed:36104565, PubMed:38059508). Also acts as a regulator of transcription by phosphorylating 'Ser-2' of the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNAP II) POLR2A (PubMed:32367068, PubMed:40858114). Involved in replication-dependent transcription of histone genes: binds to histone genes and phosphorylates POLR2A at 'Ser-2' of the CTD to specifically control transcriptional elongation of histones and recruitment of 3'-end processing factors (PubMed:32367068). Part of a transcription checkpoint upstream of CDK9, which regulates promoter-proximal pausing by RNA polymerase II, a transcription halt following transcription initiation, but prior to elongation (PubMed:40858114). Probably regulates promoter-proximal pausing by mediating phosphorylation of POLR2A at 'Ser-2' of the CTD (PubMed:40858114)

Protein Sequence

10 MGDEKDSWKV 20 KTLDEILQEK 30 KRRKEQEEKA 40 EIKRLKNSDD 50 RDSKRDSLEE 60 GELRDHCMEI 70 TIRNSPYRRE 80 DSMEDRGEED 90 DSLAIKPPQQ 100 MSRKEKVHHR 110 KDEKRKEKWK 120 HARVKEREHE 130 RRKRHREEQD 140 KARREWERQK 150 RREMAREHSR 160 RERDRLEQLE 170 RKRERERKMR 180 EQQKEQREQK 190 ERERRAEERR 200 KEREARREVS 210 AHHRTMREDY 220 SDKVKASHWS 230 RSPPRPPRER 240 FELGDGRKPG 250 EARPAPAQKP 260 AQLKEEKMEE 270 RDLLSDLQDI 280 SDSERKTSSA 290 ESSSAESGSG 300 SEEEEEEEEE 310 EEEEGSTSEE 320 SEEEEEEEEE 330 EEEETGSNSE 340 EASEQSAEEV 350 SEEEMSEDEE 360 RENENHLLVV 370 PESRFDRDSG 380 ESEEAEEEVG 390 EGTPQSSALT 400 EGDYVPDSPA 410 LLPIELKQEL 420 PKYLPALQGC 430 RSVEEFQCLN 440 RIEEGTYGVV 450 YRAKDKKTDE 460 IVALKRLKME 470 KEKEGFPITS 480 LREINTILKA 490 QHPNIVTVRE 500 IVVGSNMDKI 510 YIVMNYVEHD 520 LKSLMETMKQ 530 PFLPGEVKTL 540 MIQLLRGVKH 550 LHDNWILHRD 560 LKTSNLLLSH 570 AGILKVGDFG 580 LAREYGSPLK 590 AYTPVVVTQW 600 YRAPELLLGA 610 KEYSTAVDMW 620 SVGCIFGELL 630 TQKPLFPGNS 640 EIDQINKVFK 650 ELGTPSEKIW 660 PGYSELPVVK 670 KMTFSEHPYN 680 NLRKRFGALL 690 SDQGFDLMNK 700 FLTYFPGRRI 710 SAEDGLKHEY 720 FRETPLPIDP 730 SMFPTWPAKS 740 EQQRVKRGTS 750 PRPPEGGLGY 760 SQLGDDDLKE 770 TGFHLTTTNQ 780 GASAAGPGFS LKF

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005694 chromosome
Cellular Component GO:0000775 chromosome, centromeric region
Cellular Component GO:0180038 cyclin L-CDK11 complex
Cellular Component GO:0000307 cyclin-dependent protein kinase holoenzyme complex
Cellular Component GO:0005829 cytosol
Cellular Component GO:0016607 nuclear speck
Cellular Component GO:0005634 nucleus
Molecular Function GO:0005524 ATP binding
Molecular Function GO:0004693 cyclin-dependent protein serine/threonine kinase activity
Molecular Function GO:0004672 protein kinase activity
Molecular Function GO:0106310 protein serine kinase activity
Molecular Function GO:0004674 protein serine/threonine kinase activity
Molecular Function GO:0140834 RNA polymerase II CTD heptapeptide repeat S2 kinase activity
Molecular Function GO:0140836 RNA polymerase II CTD heptapeptide repeat S5 kinase activity
Biological Process GO:0006915 apoptotic process
Biological Process GO:0000278 mitotic cell cycle
Biological Process GO:0006397 mRNA processing
Biological Process GO:0006468 protein phosphorylation
Biological Process GO:0042981 regulation of apoptotic process
Biological Process GO:0051726 regulation of cell cycle
Biological Process GO:0001558 regulation of cell growth
Biological Process GO:0046605 regulation of centrosome cycle
Biological Process GO:0006355 regulation of DNA-templated transcription
Biological Process GO:0050684 regulation of mRNA processing
Biological Process GO:0048024 regulation of mRNA splicing, via spliceosome
Biological Process GO:0043484 regulation of RNA splicing
Biological Process GO:0001111 RNA polymerase II promoter clearance
Biological Process GO:0008380 RNA splicing

Reference

[1] Yang D, Yin J, Shan L, Yi X, Zhang W et al.. Identification of lysine-lactylated substrates in gastric cancer cells.. iScience 25(7):104630. 2022 Jul 15. PMID: 35800753.