Protein: DNA-directed RNA polymerase, mitochondrial (MtRPOL) (EC 2.7.7.6) (Q8BKF1)
Organism: Mus musculus (Mouse)
Function: DNA-dependent RNA polymerase catalyzes the transcription of mitochondrial DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of the mitochondrial transcription initiation complex, composed at least of TFB2M, TFAM and POLRMT that is required for basal transcription of mitochondrial DNA. In this complex, TFAM recruits POLRMT to a specific promoter whereas TFB2M induces structural changes in POLRMT to enable promoter opening and trapping of the DNA non-template strand. Has DNA primase activity. Catalyzes the synthesis of short RNA primers that are necessary for the initiation of lagging-strand DNA synthesis from the origin of light-strand DNA replication (OriL).
Subcellular location: Mitochondrion {ECO:0000269|PubMed:23283301}.
Sequence: MSALRWTRSAAGLGRVLRSPGPHRPPSEEGTFGGFCSSRRSSAASPREQHVLREWGHAELLEVLEARVRQLRAEGTPEMRVKKVQVDRPPQGHSSRWAQKLEAEKRVKQRRQKEVDQQKQALTQEFWTLHKEPKIWNKKLAGYLQPSKKGTPTNSEEKQLAQALQAALGRLSSREAEALARKKAKAVEAQILVLQQKFLAFFECCVCTGQVPLAHHVLVTHHNNGDRQQVLTLHMYNTVMLGWARKGSFRELVYVFLMLKDAGLSPDLCSYAAALQCMGRRDQDVRTIQRCLKQMMEEGFQPQLLFTDLVLEEEDRAALLRAVVKAEPAFRPPPQAPSPVNTSTLLKDIYSKEGPVSYPKLHLPLDTLQDLFYQQLHVELSSSVCVQSVEKAPVMSKEVIEARKTLQALREQWEVELLRVLRETKATMGRQAYEGQPTLYPFLCLLSEGEFVSILMQVLKVLPAQGEPLIQLAHNLGLRVLNRHLVKQKQVTNHVQKLGQRYSQYLQLLASDTQVAPCLPREYWESLGPLEAPAQQPWSVPVLLQLGKQLAELLVQAVQMPRSLAARQGAQRSIPVLYHVYSFRSYRQVGILKPHPAFTHLLETAAEPTLTFETTEVPMLCPPLPWTSLHSGAYLLSSTKLMRATEGTTQHQRLLEQCPPAQLHGPLDALTQLGNCAWRVNGHLLDLVLQIFRDKGCMPLGVPPPRSEAPRPARYQLPPGSTPVHKSELRKELARCLKVAREMHSLRSEALYRLSLAQHLRHRVFWLPHNMDFRGRTYPCPPHFNHLGSDLARALLEFAEGRPLGPRGLDWLKIHLINLTGLKKGDSLRMRLAFADEVMEEILDSADNPLTGRKWWMEADEPWQTLACCMEVAHAVRSPDPAAYISHLPVHQDGSCNGLQHYAALGRDSVGAASVNLTPSDLPQDVYREVATQVEEFRQQDAKEGLRVAQVLEGFISRKVVKQTVMTVVYGVTRYGGRLQIEKRLRELSDFPQEFVWEASHYLVRQVFKSLQEMFTSTRAIQHWLTESANLISHAGWPVEWVTPLGIPIIQPYHRESKVQVKGGLQSITLTSSVDESQKPNTLKQKNGFPPNFIHSLDSSHMMLTALHCYRKGLIFVSVHDCFWTHAADIPTMNEVCREQFVRLHSQPILEDLAKFLKKRFCSVSSIKSLKSSERALVTKLQETLQSLPKTGTFDLGQVIRSTYFFS
InterPro domains: - IPR011990: Tetratricopeptide-like helical domain superfamily (homologous_superfamily) [156-325]
- IPR043502: DNA/RNA polymerase superfamily (homologous_superfamily) [353-1207]
- IPR037159: DNA-directed RNA polymerase, N-terminal domain superfamily (homologous_superfamily) [368-674]
- IPR029262: DNA-directed RNA polymerase, N-terminal (domain) [373-675]
- IPR002092: DNA-directed RNA polymerase, phage-type (family) [74-1207]
- IPR002885: Pentatricopeptide repeat (repeat) [232-267]
- IPR046950: DNA-directed RNA polymerase, C-terminal domain, phage-type (domain) [802-1207]
Interaction partners: - Dimethyladenosine transferase 2, mitochondrial
- Transcription factor A, mitochondrial
- Transcription elongation factor
- Dimethyladenosine transferase 1, mitochondrial
- Large ribosomal subunit protein bL12m
- DNA polymerase subunit gamma-1
- Single-stranded DNA-binding protein, mitochondrial
- Twinkle mtDNA helicase
- Serum response factor-binding protein 1
- DNA-directed RNA polymerase I subunit RPA2
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0003824 (catalytic activity), GO:0016740 (transferase activity), GO:0005515 (protein binding), GO:0016772 (transferase activity, transferring phosphorus-containing groups), GO:0016779 (nucleotidyltransferase activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0006807 (nitrogen compound 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:0006139 (nucleobase-containing compound metabolic process), GO:0046483 (heterocycle metabolic process), GO:0044249 (cellular biosynthetic process), GO:0006725 (cellular aromatic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:0043170 (macromolecule metabolic process), GO:0009059 (macromolecule biosynthetic process), GO:1901362 (organic cyclic compound biosynthetic process), GO:0090304 (nucleic acid metabolic process), GO:0019438 (aromatic compound biosynthetic process), GO:0018130 (heterocycle biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0010467 (gene expression), GO:0034654 (nucleobase-containing compound biosynthetic process), GO:0016070 (RNA metabolic process), GO:0140053 (mitochondrial gene expression), GO:0032774 (RNA biosynthetic process), GO:0097659 (nucleic acid-templated transcription), GO:0006390 (mitochondrial transcription), GO:0000959 (mitochondrial RNA metabolic process), GO:0006352 (DNA-templated transcription initiation), GO:0006351 (DNA-templated transcription)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0005737 (cytoplasm), GO:0031974 (membrane-enclosed lumen), GO:0009295 (nucleoid), GO:0005739 (mitochondrion), GO:0043233 (organelle lumen), GO:0043229 (intracellular organelle), GO:0042645 (mitochondrial nucleoid), GO:0043227 (membrane-bounded organelle), GO:0043228 (non-membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005759 (mitochondrial matrix), GO:0070013 (intracellular organelle lumen), GO:0043232 (intracellular non-membrane-bounded organelle)