ID   MED18_KLULA             Reviewed;         255 AA.
AC   Q6CQQ0;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-AUG-2004, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Mediator of RNA polymerase II transcription subunit 18;
DE   AltName: Full=Mediator complex subunit 18;
GN   Name=SRB5; Synonyms=MED18; OrderedLocusNames=KLLA0D15290g;
OS   Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 /
OS   NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Kluyveromyces.
OX   NCBI_TaxID=284590;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37;
RX   PubMed=15229592; DOI=10.1038/nature02579;
RA   Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA   de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA   Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA   Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA   Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA   Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA   Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA   Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA   Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA   Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA   Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA   Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA   Weissenbach J., Wincker P., Souciet J.-L.;
RT   "Genome evolution in yeasts.";
RL   Nature 430:35-44(2004).
CC   -!- FUNCTION: Component of the Mediator complex, a coactivator involved in
CC       the regulated transcription of nearly all RNA polymerase II-dependent
CC       genes. Mediator functions as a bridge to convey information from gene-
CC       specific regulatory proteins to the basal RNA polymerase II
CC       transcription machinery. Mediator is recruited to promoters by direct
CC       interactions with regulatory proteins and serves as a scaffold for the
CC       assembly of a functional preinitiation complex with RNA polymerase II
CC       and the general transcription factors (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Component of the Mediator complex. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the Mediator complex subunit 18 family.
CC       {ECO:0000305}.
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DR   EMBL; CR382124; CAH00835.1; -; Genomic_DNA.
DR   RefSeq; XP_453739.1; XM_453739.1.
DR   AlphaFoldDB; Q6CQQ0; -.
DR   SMR; Q6CQQ0; -.
DR   STRING; 28985.XP_453739.1; -.
DR   EnsemblFungi; CAH00835; CAH00835; KLLA0_D15290g.
DR   GeneID; 2892746; -.
DR   KEGG; kla:KLLA0_D15290g; -.
DR   eggNOG; ENOG502RXWG; Eukaryota.
DR   HOGENOM; CLU_058255_1_0_1; -.
DR   InParanoid; Q6CQQ0; -.
DR   OMA; DRKSMDS; -.
DR   Proteomes; UP000000598; Chromosome D.
DR   GO; GO:0070847; C:core mediator complex; IEA:EnsemblFungi.
DR   GO; GO:0016592; C:mediator complex; IEA:InterPro.
DR   GO; GO:0000979; F:RNA polymerase II core promoter sequence-specific DNA binding; IEA:EnsemblFungi.
DR   GO; GO:0003713; F:transcription coactivator activity; IEA:EnsemblFungi.
DR   GO; GO:0032968; P:positive regulation of transcription elongation from RNA polymerase II promoter; IEA:EnsemblFungi.
DR   GO; GO:0060261; P:positive regulation of transcription initiation from RNA polymerase II promoter; IEA:EnsemblFungi.
DR   GO; GO:0051123; P:RNA polymerase II preinitiation complex assembly; IEA:EnsemblFungi.
DR   GO; GO:0006369; P:termination of RNA polymerase II transcription; IEA:EnsemblFungi.
DR   GO; GO:0001113; P:transcription open complex formation at RNA polymerase II promoter; IEA:EnsemblFungi.
DR   InterPro; IPR019095; Mediator_Med18.
DR   PANTHER; PTHR13321; PTHR13321; 1.
DR   Pfam; PF09637; Med18; 1.
PE   3: Inferred from homology;
KW   Activator; Nucleus; Reference proteome; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..255
FT                   /note="Mediator of RNA polymerase II transcription subunit
FT                   18"
FT                   /id="PRO_0000304762"
SQ   SEQUENCE   255 AA;  29006 MW;  501ED9E736B9928B CRC64;
     MVQQLALFSA IEDESYPLSV ETLTILSSNR PRLFANFNKI YKPNPSLQIE KVNAKNQLVE
     QTRVKLSTAV PLSKLGNGAE LNYHFMEKLS NDDIESFNVK SYIQDIDSNN KTNWAFQISD
     IPAAGNNRKL SSQTIHESVI QSSSGSVSSF IDELGYVNDF QYINVGVKFQ FLSGVVMEIY
     KVWQVVQKDQ EVSMKLITKD GFMIKAMYNV NKSTDIESLN NGSQLLLKLK TDLRDYIELD
     IPDRKCMDTR LNHLD