SSN3_ASPCL
ID SSN3_ASPCL Reviewed; 426 AA.
AC A1CL96;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 2.
DT 03-AUG-2022, entry version 83.
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; ORFNames=ACLA_041380;
OS Aspergillus clavatus (strain ATCC 1007 / CBS 513.65 / DSM 816 / NCTC 3887 /
OS NRRL 1 / QM 1276 / 107).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC Aspergillus subgen. Fumigati.
OX NCBI_TaxID=344612;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 1007 / CBS 513.65 / DSM 816 / NCTC 3887 / NRRL 1;
RX PubMed=18404212; DOI=10.1371/journal.pgen.1000046;
RA Fedorova N.D., Khaldi N., Joardar V.S., Maiti R., Amedeo P., Anderson M.J.,
RA Crabtree J., Silva J.C., Badger J.H., Albarraq A., Angiuoli S., Bussey H.,
RA Bowyer P., Cotty P.J., Dyer P.S., Egan A., Galens K., Fraser-Liggett C.M.,
RA Haas B.J., Inman J.M., Kent R., Lemieux S., Malavazi I., Orvis J.,
RA Roemer T., Ronning C.M., Sundaram J.P., Sutton G., Turner G., Venter J.C.,
RA White O.R., Whitty B.R., Youngman P., Wolfe K.H., Goldman G.H.,
RA Wortman J.R., Jiang B., Denning D.W., Nierman W.C.;
RT "Genomic islands in the pathogenic filamentous fungus Aspergillus
RT fumigatus.";
RL PLoS Genet. 4:E1000046-E1000046(2008).
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 -!- SEQUENCE CAUTION:
CC Sequence=EAW09920.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
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DR EMBL; DS027056; EAW09920.1; ALT_SEQ; Genomic_DNA.
DR RefSeq; XP_001271346.1; XM_001271345.1.
DR AlphaFoldDB; A1CL96; -.
DR SMR; A1CL96; -.
DR STRING; 5057.CADACLAP00003993; -.
DR EnsemblFungi; EAW09920; EAW09920; ACLA_041380.
DR GeneID; 4702929; -.
DR KEGG; act:ACLA_041380; -.
DR eggNOG; KOG0666; Eukaryota.
DR OrthoDB; 642369at2759; -.
DR Proteomes; UP000006701; Unassembled WGS sequence.
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; Reference proteome; Repressor;
KW Serine/threonine-protein kinase; Transcription; Transcription regulation;
KW Transferase.
FT CHAIN 1..426
FT /note="Serine/threonine-protein kinase ssn3"
FT /id="PRO_0000312933"
FT DOMAIN 41..368
FT /note="Protein kinase"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT REGION 390..426
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 173
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159,
FT ECO:0000255|PROSITE-ProRule:PRU10027"
FT BINDING 47..55
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT BINDING 71
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
SQ SEQUENCE 426 AA; 48035 MW; F4C6DA86A1549D60 CRC64;
MFGRNFPFFN SIGGFYPRDS LDPRKPSGTG YTSKVRVRDK YHIVGFISSG TYGRVYKAIG
KDGRKGEFAI KKFKPDKEGE IIQYTGLSQS AIREMSLCSE LDHSNVVQLA EIILEDKCIF
MVFEYTEHDL LQIIHHHTQP QRHAIPAPMI KSILFQLLNG LLYLHTNWVL HRDLKPANIL
VTSSGAVRIG DLGLARLFYK PLNSLYSGDK VVVTIWYRAP ELLMGSRHYT PAVDLWAVGC
IFAELLSLRP IFKGEEAKMD SKKTVPFQRN QMMKIVEIMG LPRKETWPGL VAMPEFSQLQ
SLAMARGHLN RQSNLEGWYQ SCLKNNGYSP TSSAGTPGPE GFDLLSRLLE YDPLKRISAQ
EALEHPYFTT GTPITANCFA GYEGKYPHRR VTQDDNDIRS GSLPGTKRSG LPDDSLMGRA
AKRLKE
