ID   MED21_KLULA             Reviewed;         143 AA.
AC   Q6CT76;
DT   02-OCT-2007, integrated into UniProtKB/Swiss-Prot.
DT   02-OCT-2007, sequence version 2.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Mediator of RNA polymerase II transcription subunit 21;
DE   AltName: Full=Mediator complex subunit 21;
GN   Name=SRB7; Synonyms=MED21; OrderedLocusNames=KLLA0C14806g;
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 21 family.
CC       {ECO:0000305}.
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DR   EMBL; CR382123; CAH01714.2; -; Genomic_DNA.
DR   RefSeq; XP_452863.2; XM_452863.2.
DR   AlphaFoldDB; Q6CT76; -.
DR   SMR; Q6CT76; -.
DR   STRING; 28985.XP_452863.2; -.
DR   EnsemblFungi; CAH01714; CAH01714; KLLA0_C14806g.
DR   GeneID; 2892325; -.
DR   KEGG; kla:KLLA0_C14806g; -.
DR   eggNOG; KOG1510; Eukaryota.
DR   HOGENOM; CLU_094271_1_0_1; -.
DR   InParanoid; Q6CT76; -.
DR   Proteomes; UP000000598; Chromosome C.
DR   GO; GO:0070847; C:core mediator complex; IEA:EnsemblFungi.
DR   GO; GO:0016592; C:mediator complex; IEA:EnsemblFungi.
DR   GO; GO:0061629; F:RNA polymerase II-specific DNA-binding transcription factor binding; IEA:EnsemblFungi.
DR   GO; GO:0003713; F:transcription coactivator activity; IEA:EnsemblFungi.
DR   GO; GO:0003714; F:transcription corepressor activity; IEA:EnsemblFungi.
DR   GO; GO:0000122; P:negative regulation of transcription by RNA polymerase II; 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   InterPro; IPR037212; Med7/Med21-like.
DR   InterPro; IPR021384; Mediator_Med21.
DR   PANTHER; PTHR13381; PTHR13381; 1.
DR   Pfam; PF11221; Med21; 1.
DR   SUPFAM; SSF140718; SSF140718; 1.
PE   3: Inferred from homology;
KW   Activator; Coiled coil; Nucleus; Reference proteome; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..143
FT                   /note="Mediator of RNA polymerase II transcription subunit
FT                   21"
FT                   /id="PRO_0000305965"
FT   COILED          53..130
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   143 AA;  16492 MW;  14EAD4EBD501D0B9 CRC64;
     MTDRLTQLQI CLDQMMEQFC GAVNYVDKNH GFEPSNDSEE QMSDPQAHIV EEKEFEKNID
     ELTTDIILKT RQIMALIDSL PGVDVSAQEQ LHRIDSLQKQ LIKMEKEKID AIKRKDALQE
     KVRTLTQDFT IGINESKTEA RLV