ID   MED20_ASHGO             Reviewed;         209 AA.
AC   Q75F10;
DT   23-OCT-2007, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   25-MAY-2022, entry version 97.
DE   RecName: Full=Mediator of RNA polymerase II transcription subunit 20;
DE   AltName: Full=Mediator complex subunit 20;
GN   Name=SRB2; Synonyms=MED20; OrderedLocusNames=AAL082W;
OS   Ashbya gossypii (strain ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056)
OS   (Yeast) (Eremothecium gossypii).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Eremothecium.
OX   NCBI_TaxID=284811;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056;
RX   PubMed=15001715; DOI=10.1126/science.1095781;
RA   Dietrich F.S., Voegeli S., Brachat S., Lerch A., Gates K., Steiner S.,
RA   Mohr C., Poehlmann R., Luedi P., Choi S., Wing R.A., Flavier A.,
RA   Gaffney T.D., Philippsen P.;
RT   "The Ashbya gossypii genome as a tool for mapping the ancient Saccharomyces
RT   cerevisiae genome.";
RL   Science 304:304-307(2004).
RN   [2]
RP   GENOME REANNOTATION.
RC   STRAIN=ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056;
RX   PubMed=23749448; DOI=10.1534/g3.112.002881;
RA   Dietrich F.S., Voegeli S., Kuo S., Philippsen P.;
RT   "Genomes of Ashbya fungi isolated from insects reveal four mating-type
RT   loci, numerous translocations, lack of transposons, and distinct gene
RT   duplications.";
RL   G3 (Bethesda) 3:1225-1239(2013).
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 20 family.
CC       {ECO:0000305}.
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DR   EMBL; AE016814; AAS50284.1; -; Genomic_DNA.
DR   RefSeq; NP_982460.1; NM_207813.1.
DR   AlphaFoldDB; Q75F10; -.
DR   SMR; Q75F10; -.
DR   STRING; 33169.AAS50284; -.
DR   EnsemblFungi; AAS50284; AAS50284; AGOS_AAL082W.
DR   GeneID; 4618661; -.
DR   KEGG; ago:AGOS_AAL082W; -.
DR   eggNOG; ENOG502RXMU; Eukaryota.
DR   HOGENOM; CLU_065844_1_0_1; -.
DR   InParanoid; Q75F10; -.
DR   OMA; QRQSIKG; -.
DR   Proteomes; UP000000591; Chromosome I.
DR   GO; GO:0070847; C:core mediator complex; IEA:EnsemblFungi.
DR   GO; GO:0016592; C:mediator complex; IBA:GO_Central.
DR   GO; GO:0019904; F:protein domain specific binding; IEA:EnsemblFungi.
DR   GO; GO:0001094; F:TFIID-class transcription factor complex binding; IEA:EnsemblFungi.
DR   GO; GO:0003713; F:transcription coactivator activity; IBA:GO_Central.
DR   GO; GO:0010689; P:negative regulation of ribosomal protein gene transcription from RNA polymerase II promoter in response to chemical stimulus; IEA:EnsemblFungi.
DR   GO; GO:0010691; P:negative regulation of ribosomal protein gene transcription from RNA polymerase II promoter in response to nutrient levels; 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:0006357; P:regulation of transcription by RNA polymerase II; IBA:GO_Central.
DR   GO; GO:0051123; P:RNA polymerase II preinitiation complex assembly; IEA:EnsemblFungi.
DR   InterPro; IPR016532; Med20.
DR   InterPro; IPR013921; Mediator_Med20.
DR   PANTHER; PTHR12465; PTHR12465; 1.
DR   Pfam; PF08612; Med20; 1.
DR   PIRSF; PIRSF007945; SRB2; 1.
PE   3: Inferred from homology;
KW   Activator; Nucleus; Reference proteome; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..209
FT                   /note="Mediator of RNA polymerase II transcription subunit
FT                   20"
FT                   /id="PRO_0000308563"
SQ   SEQUENCE   209 AA;  23536 MW;  75301FB569CF16FC CRC64;
     MKRTAVIFIE KATPSTITQF HDILSTHVLA IQEKWSFELK TFRSSIKNLP PSDTKVLYSL
     QLTHRDNQTV VIKNQSAIVT GQHSTDALTS NGCSSGFPEP FDNILTSKLS NIWTQRQSTK
     GNFGTTYKTS ELIIRASNVF SSSGFKGLLL EIECTDPVSA EEFDRRVANI RAMLSEIDIN
     DYKLNKDEMN EGKPVFLCDL AYQYVKVLD