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Identification
HMDB Protein ID HMDBP00736
Secondary Accession Numbers
  • 6011
Name DNA-directed RNA polymerase III subunit RPC4
Synonyms
  1. DNA-directed RNA polymerase III subunit D
  2. Protein BN51
  3. RNA polymerase III 47 kDa subunit
  4. RNA polymerase III subunit C4
  5. RPC53 homolog
Gene Name POLR3D
Protein Type Enzyme
Biological Properties
General Function Involved in DNA binding
Specific Function DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Specific peripheric component of RNA polymerase III which synthesizes small RNAs, such as 5S rRNA and tRNAs. Plays a key role in sensing and limiting infection by intracellular bacteria and DNA viruses. Acts as nuclear and cytosolic DNA sensor involved in innate immune response. Can sense non-self dsDNA that serves as template for transcription into dsRNA. The non-self RNA polymerase III transcripts, such as Epstein-Barr virus-encoded RNAs (EBERs) induce type I interferon and NF- Kappa-B through the RIG-I pathway (By similarity).
Pathways
  • Cytosolic DNA-sensing pathway
  • Epstein-Barr virus infection
  • Purine metabolism
  • Pyrimidine metabolism
  • RNA polymerase
Reactions
Adenosine triphosphate + RNA → Pyrophosphate + RNA details
Guanosine triphosphate + RNA → Pyrophosphate + RNA details
Cytidine triphosphate + RNA → Pyrophosphate + RNA details
Uridine triphosphate + RNA → Pyrophosphate + RNA details
GO Classification
Biological Process
termination of RNA polymerase III transcription
transcription elongation from RNA polymerase III promoter
positive regulation of innate immune response
positive regulation of interferon-beta production
defense response to virus
innate immune response
Cellular Component
DNA-directed RNA polymerase III complex
nucleoplasm
Component
organelle part
intracellular organelle part
nuclear part
nucleoplasm part
dna-directed rna polymerase iii complex
Function
binding
catalytic activity
transferase activity
transferase activity, transferring phosphorus-containing groups
nucleotidyltransferase activity
nucleic acid binding
dna binding
rna polymerase activity
dna-directed rna polymerase activity
Molecular Function
DNA-directed RNA polymerase activity
DNA binding
Process
macromolecule biosynthetic process
cellular macromolecule biosynthetic process
metabolic process
biosynthetic process
transcription
transcription, dna-dependent
transcription from rna polymerase iii promoter
Cellular Location
  1. Nucleus
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs POLR3D
Gene Sequence
>1197 bp
ATGTCGGAAGGAAACGCCGCCGGCGAGCCCAGCACGCCGGGAGGGCCCCGACCTCTCCTG
ACTGGGGCCCGGGGGCTCATCGGGCGGCGGCCGGCGCCTCCCCTCACCCCCGGCCGCCTT
CCCTCCATCCGTTCCAGGGACCTCACCCTCGGGGGAGTCAAGAAGAAAACCTTCACCCCA
AATATCATCAGTCGGAAGATCAAGGAAGAGCCCAAGGAAGAAGTAACTGTCAAGAAGGAG
AAGCGTGAAAGGGACAGAGACCGACAACGAGAGGGGCATGGACGAGGGCGAGGCCGTCCA
GAAGTGATCCAGTCTCACTCCATCTTTGAGCAGGGCCCAGCTGAAATGATGAAGAAAAAA
GGGAACTGGGATAAGACAGTGGATGTGTCAGACATGGGACCTTCTCATATCATCAACATC
AAAAAAGAGAAGAGAGAGACAGACGAAGAAACTAAACAGATCTTGCGTATGCTGGAGAAG
GACGATTTCCTCGATGACCCCGGCCTGAGGAACGACACTCGAAATATGCCTGTGCAGCTG
CCGCTGGCTCACTCAGGATGGCTTTTTAAGGAAGAAAATGACGAACCAGATGTTAAACCT
TGGCTGGCTGGCCCCAAGGAAGAGGACATGGAGGTGGACATACCTGCTGTGAAAGTGAAA
GAGGAGCCACGAGATGAGGAGGAAGAGGCCAAGATGAAGGCTCCTCCCAAAGCAGCCAGG
AAGACTCCAGGCCTCCCGAAGGATGTATCTGTGGCAGAGCTGCTGAGGGAGCTGAGCCTC
ACCAAGGAAGAGGAACTGCTGTTTCTGCAGCTGCCAGACACCCTCCCTGGCCAGCCACCC
ACCCAGGACATCAAGCCTATCAAGACAGAGGTGCAGGGCGAGGACGGACAGGTGGTGCTC
ATCAAGCAGGAGAAAGACCGAGAAGCCAAATTGGCAGAGAATGCTTGTACCCTGGCTGAC
CTGACAGAGGGTCAGGTTGGCAAGCTACTCATCCGCAAGTCTGGAAGGGTGCAACTCCTC
TTGGGCAAGGTGACTCTGGACGTGACCATGGGAACTGCCTGCTCCTTCCTGCAGGAGCTG
GTGTCCGTGGGCCTTGGAGACAGTAGGACAGGGGAGATGACAGTCCTGGGACACGTGAAG
CACAAACTTGTATGTTCCCCTGATTTTGAATCCCTCTTGGATCACAAACACCGGTAA
Protein Properties
Number of Residues 398
Molecular Weight Not Available
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>DNA-directed RNA polymerase III subunit RPC4
MSEGNAAGEPSTPGGPRPLLTGARGLIGRRPAPPLTPGRLPSIRSRDLTLGGVKKKTFTP
NIISRKIKEEPKEEVTVKKEKRERDRDRQREGHGRGRGRPEVIQSHSIFEQGPAEMMKKK
GNWDKTVDVSDMGPSHIINIKKEKRETDEETKQILRMLEKDDFLDDPGLRNDTRNMPVQL
PLAHSGWLFKEENDEPDVKPWLAGPKEEDMEVDIPAVKVKEEPRDEEEEAKMKAPPKAAR
KTPGLPKDVSVAELLRELSLTKEEELLFLQLPDTLPGQPPTQDIKPIKTEVQGEDGQVVL
IKQEKDREAKLAENACTLADLTEGQVGKLLIRKSGRVQLLLGKVTLDVTMGTACSFLQEL
VSVGLGDSRTGEMTVLGHVKHKLVCSPDFESLLDHKHR
GenBank ID Protein 55769552
UniProtKB/Swiss-Prot ID P05423
UniProtKB/Swiss-Prot Entry Name RPC4_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_001722.2
GeneCard ID POLR3D
GenAtlas ID POLR3D
HGNC ID HGNC:1080
References
General References
  1. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  2. Olsen JV, Blagoev B, Gnad F, Macek B, Kumar C, Mortensen P, Mann M: Global, in vivo, and site-specific phosphorylation dynamics in signaling networks. Cell. 2006 Nov 3;127(3):635-48. [PubMed:17081983 ]
  3. Ittmann M, Greco A, Basilico C: Isolation of the human gene that complements a temperature-sensitive cell cycle mutation in BHK cells. Mol Cell Biol. 1987 Oct;7(10):3386-93. [PubMed:3683386 ]
  4. Hu P, Wu S, Sun Y, Yuan CC, Kobayashi R, Myers MP, Hernandez N: Characterization of human RNA polymerase III identifies orthologues for Saccharomyces cerevisiae RNA polymerase III subunits. Mol Cell Biol. 2002 Nov;22(22):8044-55. [PubMed:12391170 ]
  5. Chong SS, Hu P, Hernandez N: Reconstitution of transcription from the human U6 small nuclear RNA promoter with eight recombinant polypeptides and a partially purified RNA polymerase III complex. J Biol Chem. 2001 Jun 8;276(23):20727-34. Epub 2001 Feb 27. [PubMed:11279001 ]
  6. Chiu YH, Macmillan JB, Chen ZJ: RNA polymerase III detects cytosolic DNA and induces type I interferons through the RIG-I pathway. Cell. 2009 Aug 7;138(3):576-91. doi: 10.1016/j.cell.2009.06.015. Epub 2009 Jul 23. [PubMed:19631370 ]
  7. Ablasser A, Bauernfeind F, Hartmann G, Latz E, Fitzgerald KA, Hornung V: RIG-I-dependent sensing of poly(dA:dT) through the induction of an RNA polymerase III-transcribed RNA intermediate. Nat Immunol. 2009 Oct;10(10):1065-72. doi: 10.1038/ni.1779. Epub 2009 Jul 16. [PubMed:19609254 ]