SSN3_CRYNB
ID SSN3_CRYNB Reviewed; 466 AA.
AC P0CS77; Q55ID8; Q5K7X7;
DT 28-JUN-2011, integrated into UniProtKB/Swiss-Prot.
DT 28-JUN-2011, sequence version 1.
DT 03-AUG-2022, entry version 49.
DE RecName: Full=Serine/threonine-protein kinase SSN3;
DE EC=2.7.11.22;
DE EC=2.7.11.23;
DE AltName: Full=Cyclin-dependent kinase 8;
GN Name=SSN3; Synonyms=CDK8; OrderedLocusNames=CNBM0820;
OS Cryptococcus neoformans var. neoformans serotype D (strain B-3501A)
OS (Filobasidiella neoformans).
OC Eukaryota; Fungi; Dikarya; Basidiomycota; Agaricomycotina; Tremellomycetes;
OC Tremellales; Cryptococcaceae; Cryptococcus;
OC Cryptococcus neoformans species complex.
OX NCBI_TaxID=283643;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B-3501A;
RX PubMed=15653466; DOI=10.1126/science.1103773;
RA Loftus B.J., Fung E., Roncaglia P., Rowley D., Amedeo P., Bruno D.,
RA Vamathevan J., Miranda M., Anderson I.J., Fraser J.A., Allen J.E.,
RA Bosdet I.E., Brent M.R., Chiu R., Doering T.L., Donlin M.J., D'Souza C.A.,
RA Fox D.S., Grinberg V., Fu J., Fukushima M., Haas B.J., Huang J.C.,
RA Janbon G., Jones S.J.M., Koo H.L., Krzywinski M.I., Kwon-Chung K.J.,
RA Lengeler K.B., Maiti R., Marra M.A., Marra R.E., Mathewson C.A.,
RA Mitchell T.G., Pertea M., Riggs F.R., Salzberg S.L., Schein J.E.,
RA Shvartsbeyn A., Shin H., Shumway M., Specht C.A., Suh B.B., Tenney A.,
RA Utterback T.R., Wickes B.L., Wortman J.R., Wye N.H., Kronstad J.W.,
RA Lodge J.K., Heitman J., Davis R.W., Fraser C.M., Hyman R.W.;
RT "The genome of the basidiomycetous yeast and human pathogen Cryptococcus
RT neoformans.";
RL Science 307:1321-1324(2005).
CC -!- FUNCTION: Component of the SRB8-11 complex. The SRB8-11 complex is a
CC regulatory module of the Mediator complex which is itself involved in
CC regulation of basal and activated RNA polymerase II-dependent
CC transcription. The SRB8-11 complex may be involved in the
CC transcriptional repression of a subset of genes regulated by Mediator.
CC It may inhibit the association of the Mediator complex with RNA
CC polymerase II to form the holoenzyme complex. The SRB8-11 complex
CC phosphorylates the C-terminal domain (CTD) of the largest subunit of
CC RNA polymerase II (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-
CC [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.22;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-
CC threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060,
CC Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216;
CC EC=2.7.11.22;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[DNA-directed RNA polymerase] + ATP = ADP + H(+) + phospho-
CC [DNA-directed RNA polymerase]; Xref=Rhea:RHEA:10216, Rhea:RHEA-
CC COMP:11321, Rhea:RHEA-COMP:11322, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:43176, ChEBI:CHEBI:68546,
CC ChEBI:CHEBI:456216; EC=2.7.11.23;
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC -!- SUBUNIT: Component of the SRB8-11 complex, a regulatory module of the
CC Mediator complex. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the protein kinase superfamily. CMGC Ser/Thr
CC protein kinase family. CDC2/CDKX subfamily. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AAEY01000062; EAL17515.1; -; Genomic_DNA.
DR RefSeq; XP_772162.1; XM_767069.1.
DR AlphaFoldDB; P0CS77; -.
DR SMR; P0CS77; -.
DR EnsemblFungi; AAW46899; AAW46899; CNM00930.
DR EnsemblFungi; EAL17515; EAL17515; CNBM0820.
DR GeneID; 4939442; -.
DR KEGG; cnb:CNBM0820; -.
DR VEuPathDB; FungiDB:CNBM0820; -.
DR HOGENOM; CLU_000288_181_6_1; -.
DR Proteomes; UP000001435; Chromosome 13.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0004693; F:cyclin-dependent protein serine/threonine kinase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0106310; F:protein serine kinase activity; IEA:RHEA.
DR GO; GO:0008353; F:RNA polymerase II CTD heptapeptide repeat kinase activity; IEA:UniProtKB-EC.
DR GO; GO:0006468; P:protein phosphorylation; IEA:InterPro.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR InterPro; IPR000719; Prot_kinase_dom.
DR InterPro; IPR008271; Ser/Thr_kinase_AS.
DR Pfam; PF00069; Pkinase; 1.
DR SMART; SM00220; S_TKc; 1.
DR SUPFAM; SSF56112; SSF56112; 1.
DR PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR PROSITE; PS00108; PROTEIN_KINASE_ST; 1.
PE 3: Inferred from homology;
KW Activator; ATP-binding; Kinase; Magnesium; Metal-binding;
KW Nucleotide-binding; Nucleus; Repressor; Serine/threonine-protein kinase;
KW Transcription; Transcription regulation; Transferase.
FT CHAIN 1..466
FT /note="Serine/threonine-protein kinase SSN3"
FT /id="PRO_0000410191"
FT DOMAIN 32..396
FT /note="Protein kinase"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT REGION 58..105
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 421..466
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 438..453
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 216
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159,
FT ECO:0000255|PROSITE-ProRule:PRU10027"
FT BINDING 38..46
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT BINDING 114
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
SQ SEQUENCE 466 AA; 52124 MW; 8CA4D04E5334C9C0 CRC64;
MATIPGGGTI MDPMHLYRAR RDKERRGVLK TYKILGFISS GTYGRVYKAV LLPPPKTASA
KSALPSSTRA ALSLPKDKLP SPSFTEDSDP LNNPEMCMRP GDRPAKRGDV FAIKKFKPDK
EGDVLTYAGI SQSGAREIML NRELHHRNLV SLREVILEDK SIYMVFEYAE HDFLQIIHYH
SQTARASIPP STLRRLLHQL LCGVHFLHSN FVLHRDLKPA NILVTSQGVV KIGDLGLARL
WHKPLAQQGL YGGDKVVVTI WYRAPELILG AKHYTAAVDI WAVGCIYAEL LSLRPIFKGD
EAKMDGKKSL PFQRDQMGKI CEVLGPVKPE QWPGIVHMPE YRTYQATGPY PHSNPLAPWY
HARSNSSEGY DILVKMFEWD PARRITARDA LRHPWFQEEG GVDTKSVFEG SSITYPTRRV
THEDNGDAKM GSLPQSMAGG RLPSSSNFRP ASGNIVQPAA RKKARI
