Protein: Mediator of RNA polymerase II transcription subunit 33B (Protein REDUCED EPIDERMAL FLUORESCENCE 4) (AtREF4) (F4IN69)
Organism: Arabidopsis thaliana (Mouse-ear cress)
Function: Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. The Mediator complex, having a compact conformation in its free form, is recruited to promoters by direct interactions with regulatory proteins and serves for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors. Involved in the repression of phenylpropanoid biosynthesis. May compete with MED33B for common binding partners or for occupancy in Mediator.
Subcellular location: Nucleus {ECO:0000305}.
Sequence: MAPSEFQPSLWESVTSLIRSAQEKNVDPLHWALQLRLTLASAGISLPSPDLAQFLVTHIFWENHSPLSWKLLEKAISVNIVPPLLVLALLSPRVIPNRKLHPAAYRLYMELLKRHAFSFMPLIRAPGYHKTMNSIDDILHLSETFGVQDQEPGSILLAFVFSIVWELLDASLDEEGLLELTSNKRSKWPSSPHDMDLDGLENSVKRNENHDALEKANTEMAIELIQEFLQNKVTSRILHLASQNMESKTIPRGEFHAIVSSGSKLALTSDSALWLPIDLFFEDIMDGTQAAAASAVENLTGLVKALQAANSTSWHDAFLALWLAALRLVQRENLCLRYCFFMHMLEILSEERDPIEGPVPRTDTFLCVLLSVTPLAVANIIEEEESQWIDQTSSSPSNQWKEKKGKCRQGLINSLQQLGDYESLLTPPRSVQSVANQAAAKAIMFISGITNSNGSYENTSMSESASGCCKVRFSLFTLKMFVVMGVYLLCNISCWSLVMKGSPLTPSLTNSLITTPASSLAEIEKMYEVATTGSEDEKIAVASILCGASLFRGWSIQEHVIIFIVTLLSPPAPADLSGSYSHLINSAPFLNVLLVGISPIDCVHIFSLHGVVPLLAGALMPICEAFGSGVPNITWTLPTGELISSHAVFSTAFTLLLRLWRFDHPPLDYVLGDVPPVGPQPSPEYLLLVRNCRLECFGKSPKDRMARRRFSKVIDISVDPIFMDSFPRLKQWYRQHQECMASILSELKTGSPVHHIVDSLLSMMFKKANKGGSQSLTPSSGSSSLSTSGGDDSSDQLKLPAWDILEAAPFVLDAALTACAHGSLSPRELATGLKILADFLPATLGTMVSYFSSEVTRGLWKPVSMNGTDWPSPAANLASVEQQIEKILAATGVDVPRLPADGISAATLPLPLAALVSLTITYKLDKATERFLVLVGPALDSLAAACPWPCMPIVTSLWTQKVKRWSDFLIFSASRTVFHHNRDAVIQLLRSCFTCTLGLTPTSQLCSYGGVGALLGHGFGSRYSGGISTAAPGILYIKVHRSIRDVMFLTEEILSLLMFSVKSIATRELPAGQAEKLKKTKDGSRYGIGQVSLSLAMRRVKLAASLGASLVWISGGLNLVQALIKETLPSWFISVHGEEDELGGMVPMLRGYALAYFAILSSAFAWGVDSSYPASKRRPRVLWLHLEFMVSALEGKISLGCDWATWQAYVTGFVSLMVQCTPAWVLEVDVEVIKRLSKSLRQWNEQDLALALLCAGGLGTMGAATELIVETCHQH
InterPro domains: - IPR039638: Mediator of RNA polymerase II transcription subunit 33A/B (family) [490-1270]
Interaction partners: - Mediator of RNA polymerase II transcription subunit 33A
- Mediator of RNA polymerase II transcription subunit 20a
- Mediator of RNA polymerase II transcription subunit 32
- Mediator of RNA polymerase II transcription subunit 8
- Mediator of RNA polymerase II transcription subunit 14
- Mediator of RNA polymerase II transcription subunit 23
- Mediator of RNA polymerase II transcription subunit 18
- Mediator of RNA polymerase II transcription subunit 16
- Mediator of RNA polymerase II transcription subunit 17
- Mediator of RNA polymerase II transcription subunit 15a
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0065007 (biological regulation), GO:0048518 (positive regulation of biological process), GO:0050789 (regulation of biological process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0048522 (positive regulation of cellular process), GO:0019222 (regulation of metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0050794 (regulation of cellular process), GO:0009893 (positive regulation of metabolic process), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0010604 (positive regulation of macromolecule metabolic process), GO:0006139 (nucleobase-containing compound metabolic process), GO:0031325 (positive regulation of cellular metabolic process), GO:0046483 (heterocycle metabolic process), GO:0009889 (regulation of biosynthetic process), GO:0051171 (regulation of nitrogen compound metabolic process), GO:0060255 (regulation of macromolecule metabolic process), GO:0044249 (cellular biosynthetic process), GO:0031323 (regulation of cellular metabolic process), GO:0006725 (cellular aromatic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:0080090 (regulation of primary metabolic process), GO:0043170 (macromolecule metabolic process), GO:0009891 (positive regulation of biosynthetic process), GO:0051173 (positive regulation of nitrogen compound metabolic process), GO:0010557 (positive regulation of macromolecule biosynthetic process), GO:0045935 (positive regulation of nucleobase-containing compound metabolic process), GO:0009059 (macromolecule biosynthetic process), GO:0051254 (positive regulation of RNA metabolic process), GO:1901362 (organic cyclic compound biosynthetic process), GO:0010556 (regulation of macromolecule biosynthetic process), GO:0090304 (nucleic acid metabolic process), GO:0019438 (aromatic compound biosynthetic process), GO:0018130 (heterocycle biosynthetic process), GO:0031326 (regulation of cellular biosynthetic process), GO:0019219 (regulation of nucleobase-containing compound metabolic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0051252 (regulation of RNA metabolic process), GO:0010467 (gene expression), GO:0031328 (positive regulation of cellular biosynthetic process), GO:0010468 (regulation of gene expression), GO:0034654 (nucleobase-containing compound biosynthetic process), GO:0016070 (RNA metabolic process), GO:1902680 (positive regulation of RNA biosynthetic process), GO:2001141 (regulation of RNA biosynthetic process), GO:0032774 (RNA biosynthetic process), GO:0097659 (nucleic acid-templated transcription), GO:0006355 (regulation of DNA-templated transcription), GO:0045893 (positive regulation of DNA-templated transcription), GO:1903508 (positive regulation of nucleic acid-templated transcription), GO:1903506 (regulation of nucleic acid-templated transcription), GO:0006351 (DNA-templated transcription)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0032991 (protein-containing complex), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0140513 (nuclear protein-containing complex), GO:0043229 (intracellular organelle), GO:0016592 (mediator complex), GO:0043227 (membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005634 (nucleus)