Q9NW08 (RPC2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 112.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: DNA-directed RNA polymerase III subunit RPC2 Short name=RNA polymerase III subunit C2 EC=2.7.7.6 Alternative name(s): C128 DNA-directed RNA polymerase III 127.6 kDa polypeptide DNA-directed RNA polymerase III subunit B | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) [Reference proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 1133 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Second largest core component of RNA polymerase III which synthesizes small RNAs, such as 5S rRNA and tRNAs. Proposed to contribute to the polymerase catalytic activity and forms the polymerase active center together with the largest subunit. Pol III is composed of mobile elements and RPC2 is part of the core element with the central large cleft and probably a clamp element that moves to open and close the cleft By similarity. 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. Ref.6 Ref.7 |
| Catalytic activity | Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1). |
| Subunit structure | Component of the RNA polymerase III (Pol III) complex consisting of 17 subunits By similarity. Ref.1 |
| Subcellular location | Nucleus By similarity. |
| Involvement in disease | Leukodystrophy, hypomyelinating, 8, with or without oligodontia and/or hypogonadotropic hypogonadism (HLD8) [MIM:614381]: An autosomal recessive neurodegenerative disorder characterized by early childhood onset of cerebellar ataxia and mild intellectual disabilities associated with diffuse hypomyelination apparent on brain MRI. Variable features include oligodontia and/or hypogonadotropic hypogonadism. |
| Sequence similarities | Belongs to the RNA polymerase beta chain family. |
| Sequence caution | The sequence BAA91527.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. The sequence BAA91581.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. |
Ontologies
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9NW08-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q9NW08-2) The sequence of this isoform differs from the canonical sequence as follows: 1-58: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1133 | 1133 | DNA-directed RNA polymerase III subunit RPC2 | PRO_0000048092 | |||||
Regions | |||||||||
| Zinc finger | 1080 – 1095 | 16 | C4-type | ||||||
Sites | |||||||||
| Metal binding | 1080 | 1 | Zinc By similarity | ||||||
| Metal binding | 1083 | 1 | Zinc By similarity | ||||||
| Metal binding | 1092 | 1 | Zinc By similarity | ||||||
| Metal binding | 1095 | 1 | Zinc By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 58 | 58 | Missing in isoform 2. | VSP_045286 | |||||
| Natural variant | 503 | 1 | T → K in HLD8. Ref.10 | VAR_067005 | |||||
| Natural variant | 523 | 1 | V → E in HLD8. Ref.10 | VAR_067006 | |||||
| Natural variant | 620 – 652 | 33 | Missing in HLD8. | VAR_067007 | |||||
| Natural variant | 740 | 1 | T → A. Corresponds to variant rs17038460 [ dbSNP | Ensembl ]. | VAR_057255 | |||||
| Natural variant | 768 | 1 | R → H in HLD8. Ref.9 | VAR_067008 | |||||
| Natural variant | 926 | 1 | D → E in HLD8. Ref.9 | VAR_067009 | |||||
Experimental info | |||||||||
| Sequence conflict | 258 | 1 | E → A in AAM18214. Ref.1 | ||||||
| Sequence conflict | 607 | 1 | T → I in BAG53685. Ref.2 | ||||||
| Sequence conflict | 978 | 1 | R → C in BAA91527. Ref.2 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Characterization of human RNA polymerase III identifies orthologues for Saccharomyces cerevisiae RNA polymerase III subunits." Hu P., Wu S., Sun Y., Yuan C.-C., Kobayashi R., Myers M.P., Hernandez N. Mol. Cell. Biol. 22:8044-8055(2002) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), IDENTIFICATION IN THE RNA POL III COMPLEX, MASS SPECTROMETRY. |
| [2] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 2). Tissue: Placenta, Teratocarcinoma and Tongue. |
| [3] | "The finished DNA sequence of human chromosome 12." Scherer S.E., Muzny D.M., Buhay C.J., Chen R., Cree A., Ding Y., Dugan-Rocha S., Gill R., Gunaratne P., Harris R.A., Hawes A.C., Hernandez J., Hodgson A.V., Hume J., Jackson A., Khan Z.M., Kovar-Smith C., Lewis L.R. Gibbs R.A.Nature 440:346-351(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Muscle. |
| [6] | "RNA polymerase III detects cytosolic DNA and induces type I interferons through the RIG-I pathway." Chiu Y.-H., Macmillan J.B., Chen Z.J. Cell 138:576-591(2009) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [7] | "RIG-I-dependent sensing of poly(dA:dT) through the induction of an RNA polymerase III-transcribed RNA intermediate." Ablasser A., Bauernfeind F., Hartmann G., Latz E., Fitzgerald K.A., Hornung V. Nat. Immunol. 10:1065-1072(2009) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [8] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| [9] | "Mutations in POLR3A and POLR3B encoding RNA Polymerase III subunits cause an autosomal-recessive hypomyelinating leukoencephalopathy." Saitsu H., Osaka H., Sasaki M., Takanashi J., Hamada K., Yamashita A., Shibayama H., Shiina M., Kondo Y., Nishiyama K., Tsurusaki Y., Miyake N., Doi H., Ogata K., Inoue K., Matsumoto N. Am. J. Hum. Genet. 89:644-651(2011) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS HLD8 620-ASN--LYS-652 DEL; HIS-768 AND GLU-926. |
| [10] | "Recessive mutations in POLR3B, encoding the second largest subunit of Pol III, cause a rare hypomyelinating leukodystrophy." Tetreault M., Choquet K., Orcesi S., Tonduti D., Balottin U., Teichmann M., Fribourg S., Schiffmann R., Brais B., Vanderver A., Bernard G. Am. J. Hum. Genet. 89:652-655(2011) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS HLD8 LYS-503 AND GLU-523. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AY092084 mRNA. Translation: AAM18214.1. AK001161 mRNA. Translation: BAA91527.1. Different initiation. AK001250 mRNA. Translation: BAA91581.1. Different initiation. AK122713 mRNA. Translation: BAG53685.1. AK291635 mRNA. Translation: BAF84324.1. AC009721 Genomic DNA. No translation available. AC078992 Genomic DNA. No translation available. AC080012 Genomic DNA. No translation available. CH471054 Genomic DNA. Translation: EAW97780.1. BC046238 mRNA. Translation: AAH46238.1. |
| IPI | IPI00301346. IPI00930490. |
| RefSeq | NP_001154180.1. NM_001160708.1. NP_060552.4. NM_018082.5. |
| UniGene | Hs.610795. Hs.62696. |
3D structure databases | |
| ProteinModelPortal | Q9NW08. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q9NW08. 1 interaction. |
| STRING | 9606.ENSP00000228347. |
PTM databases | |
| PhosphoSite | Q9NW08. |
Polymorphism databases | |
| DMDM | 29428029. |
Proteomic databases | |
| PaxDb | Q9NW08. |
| PRIDE | Q9NW08. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000228347; ENSP00000228347; ENSG00000013503. ENST00000539066; ENSP00000445721; ENSG00000013503. |
| GeneID | 55703. |
| KEGG | hsa:55703. |
| UCSC | uc001tlp.3. human. |
Organism-specific databases | |
| CTD | 55703. |
| GeneCards | GC12P106751. |
| H-InvDB | HIX0037055. |
| HGNC | HGNC:30348. POLR3B. |
| HPA | HPA036466. |
| MIM | 614366. gene. 614381. phenotype. |
| neXtProt | NX_Q9NW08. |
| Orphanet | 88637. Hypomyelination - hypogonadotropic hypogonadism - hypodontia. |
| PharmGKB | PA134867680. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0085. |
| HOGENOM | HOG000222962. |
| HOVERGEN | HBG017744. |
| InParanoid | Q9NW08. |
| KO | K03021. |
| OMA | DMIMNPH. |
| OrthoDB | EOG49ZXND. |
| PhylomeDB | Q9NW08. |
Enzyme and pathway databases | |
| Reactome | REACT_1788. Transcription. REACT_71. Gene Expression. |
Gene expression databases | |
| ArrayExpress | Q9NW08. |
| Bgee | Q9NW08. |
| CleanEx | HS_POLR3B. |
| Genevestigator | Q9NW08. |
| GermOnline | ENSG00000013503. Homo sapiens. |
Family and domain databases | |
| Gene3D | 2.40.270.10. 2 hits. 2.40.50.150. 1 hit. |
| InterPro | IPR015712. DNA-dir_RNA_pol_su2. IPR007120. DNA-dir_RNA_pol_su2_6. IPR007121. RNA_pol_bsu_CS. IPR007644. RNA_pol_bsu_protrusion. IPR007642. RNA_pol_Rpb2_2. IPR007645. RNA_pol_Rpb2_3. IPR007646. RNA_pol_Rpb2_4. IPR007647. RNA_pol_Rpb2_5. IPR007641. RNA_pol_Rpb2_7. IPR014724. RNA_pol_RPB2_OB-fold. [Graphical view] |
| PANTHER | PTHR20856. PTHR20856. 1 hit. |
| Pfam | PF04563. RNA_pol_Rpb2_1. 1 hit. PF04561. RNA_pol_Rpb2_2. 1 hit. PF04565. RNA_pol_Rpb2_3. 1 hit. PF04566. RNA_pol_Rpb2_4. 1 hit. PF04567. RNA_pol_Rpb2_5. 1 hit. PF00562. RNA_pol_Rpb2_6. 1 hit. PF04560. RNA_pol_Rpb2_7. 1 hit. [Graphical view] |
| PROSITE | PS01166. RNA_POL_BETA. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| GenomeRNAi | 55703. |
| NextBio | 60549. |
| SOURCE | Search... |
Entry information
| Entry name | RPC2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9NW08 Secondary accession number(s): A8K6H0 Q9NW59 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 12 Human chromosome 12: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
