Gene Gene information from NCBI Gene database.
Entrez ID 55703
Gene name RNA polymerase III subunit B
Gene symbol POLR3B
Synonyms (NCBI Gene)
C128CMT1IHLD8INMAPRPC2
Chromosome 12
Chromosome location 12q23.3
Summary This gene encodes the second largest subunit of RNA polymerase III, the polymerase responsible for synthesizing transfer and small ribosomal RNAs in eukaryotes. The largest subunit and the encoded protein form the catalytic center of RNA polymerase III. M
SNPs SNP information provided by dbSNP.
16
SNP ID Visualize variation Clinical significance Consequence
rs138249161 T>A Pathogenic, likely-pathogenic Coding sequence variant, missense variant
rs199504211 T>C Uncertain-significance, conflicting-interpretations-of-pathogenicity Missense variant, coding sequence variant
rs267608683 C>A Pathogenic Missense variant, coding sequence variant
rs267608684 T>- Pathogenic Frameshift variant, coding sequence variant
rs267608685 A>T Pathogenic Stop gained, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
58
miRTarBase ID miRNA Experiments Reference
MIRT030785 hsa-miR-21-5p Microarray 18591254
MIRT032193 hsa-let-7b-5p Proteomics 18668040
MIRT1249174 hsa-miR-1257 CLIP-seq
MIRT1249175 hsa-miR-21 CLIP-seq
MIRT1249176 hsa-miR-3065-3p CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
30
GO ID Ontology Definition Evidence Reference
GO:0000428 Component DNA-directed RNA polymerase complex IEA
GO:0002376 Process Immune system process IEA
GO:0003677 Function DNA binding IEA
GO:0003899 Function DNA-directed RNA polymerase activity IDA 34675218
GO:0003899 Function DNA-directed RNA polymerase activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
614366 30348 ENSG00000013503
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9NW08
Protein name DNA-directed RNA polymerase III subunit RPC2 (RNA polymerase III subunit C2) (EC 2.7.7.6) (C128) (DNA-directed RNA polymerase III 127.6 kDa polypeptide) (DNA-directed RNA polymerase III subunit B)
Protein function Catalytic core component of RNA polymerase III (Pol III), a DNA-dependent RNA polymerase which synthesizes small non-coding RNAs using the four ribonucleoside triphosphates as substrates. Synthesizes 5S rRNA, snRNAs, tRNAs and miRNAs from at lea
PDB 7A6H , 7AE1 , 7AE3 , 7AEA , 7AST , 7D58 , 7D59 , 7DN3 , 7DU2 , 7FJI , 7FJJ , 8ITY , 8IUE , 8IUH , 9FSO , 9FSP , 9FSQ , 9FSR , 9FSS
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF04563 RNA_pol_Rpb2_1 38 413 RNA polymerase beta subunit Family
PF04561 RNA_pol_Rpb2_2 185 363 RNA polymerase Rpb2, domain 2 Domain
PF04565 RNA_pol_Rpb2_3 438 502 RNA polymerase Rpb2, domain 3 Domain
PF04566 RNA_pol_Rpb2_4 539 600 RNA polymerase Rpb2, domain 4 Domain
PF04567 RNA_pol_Rpb2_5 621 661 RNA polymerase Rpb2, domain 5 Domain
PF00562 RNA_pol_Rpb2_6 668 1041 RNA polymerase Rpb2, domain 6 Domain
PF04560 RNA_pol_Rpb2_7 1043 1129 RNA polymerase Rpb2, domain 7 Domain
Sequence
MDVLAEEFGNLTPEQLAAPIPTVEEKWRLLPAFLKVKGLVKQHIDSFNYFINVEIKKIMK
ANEKVTSDADPMWYLKYLNIYVGLPDVEESFNVTRPVSPHECRLRDMTYSAPITVDIEYT
RGSQRIIRNALPIGRMPIMLRSSNCVLTGKTPAEFAKLNECPLDPGGYFIVKGVEKVILI
QEQL
SKNRIIVEADRKGAVGASVTSSTHEKKSRTNMAVKQGRFYLRHNTLSEDIPIVIIF
KAMGVESDQEIVQMIGTEEHVMAAFGPSLEECQKAQIFTQMQALKYIGNKVRRQRMWGGG
PKKTKIEEARELLASTILTHVPVKEFNFRAKCIYTAVMVRRVILAQGDNKVDDRDYYGNK
RLE
LAGQLLSLLFEDLFKKFNSEMKKIADQVIPKQRAAQFDVVKHMRQDQITN
GMVNAIS
TGNWSLKRFKMDRQGVTQVLSRLSYISALGMMTRISSQFEKTRKVSGPRSLQPSQWGMLC
PSDTPEGEACGLVKNLALMTHI
TTDMEDGPIVKLASNLGVEDVNLLCGEELSYPNVFLVF
LNGNILGVIRDHKKLVNTFRLMRRAGYINEFVSISTNLTDRCVYISSDGGRLCRPYIIVK

KQKPAVTNKHMEELAQGYRNFEDFLHESLVEYLDVNEENDCNIALYEHTINKDTTHLEIE
P
FTLLGVCAGLIPYPHHNQSPRNTYQCAMGKQAMGTIGYNQRNRIDTLMYLLAYPQKPMV
KTKTIELIEFEKLPAGQNATVAVMSYSGYDIEDALVLNKASLDRGFGRCLVYKNAKCTLK
RYTNQTFDKVMGPMLDAATRKPIWRHEILDADGICSPGEKVENKQVLVNKSMPTVTQIPL
EGSNVPQQPQYKDVPITYKGATDSYIEKVMISSNAEDAFLIKMLLRQTRRPEIGDKFSSR
HGQKGVCGLIVPQEDMPFCDSGICPDIIMNPHGFPSRMTVGKLIELLAGKAGVLDGRFHY
GTAFGGSKVKDVCEDLVRHGYNYLGKDYVTSGITGEPLEAYIYFGPVYYQKLKHMVLDKM
HARARGPRAVLTRQPTEGRSR
DGGLRLGEMERDCLIGYGASMLLLERLMISSDAFEVDVC
GQCGLLGYSGWCHYCKSSCHVSSLRIPYACKLLFQELQSMNIIPRLKLS
KYNE
Sequence length 1133
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  RNA polymerase
Cytosolic DNA-sensing pathway
  Cytosolic sensors of pathogen-associated DNA
RNA Polymerase III Transcription Initiation From Type 1 Promoter
RNA Polymerase III Transcription Initiation From Type 2 Promoter
RNA Polymerase III Transcription Initiation From Type 3 Promoter
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
39
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Charcot-Marie-Tooth disease, demyelinating, IIA 1I Likely pathogenic; Pathogenic rs2037451945, rs2038648611, rs2136937347, rs767558518, rs2542229310, rs138249161, rs747912710, rs774526181, rs2037218302 RCV001836991
RCV001836992
RCV001837163
RCV005409917
RCV004527481
View all (4 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Colon adenocarcinoma Pathogenic rs753943393 RCV005897331
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Familial cancer of breast Pathogenic rs753943393 RCV005897330
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Hypogonadotropic hypogonadism Likely pathogenic; Pathogenic rs138249161 RCV001849282
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
ALZHEIMER DISEASE GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Amenorrhea Uncertain significance; Conflicting classifications of pathogenicity ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CENTRAL NERVOUS SYSTEM CANCER GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CEREBELLAR ATAXIA, EARLY ONSET Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Addison Disease Addison`s Disease BEFREE 26204956
★☆☆☆☆
Found in Text Mining only
Adrenal cortical hypofunction Adrenal Cortical Hypofunction BEFREE 26204956
★☆☆☆☆
Found in Text Mining only
Agenesis of Corpus Callosum Corpus callosum agenesis Pubtator 22036171, 27029625 Associate
★☆☆☆☆
Found in Text Mining only
Alzheimer Disease Alzheimer disease Pubtator 25311278 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Anodontia Anodontia Pubtator 25339210, 33005949, 34666706 Associate
★☆☆☆☆
Found in Text Mining only
Asthma Asthma Pubtator 39217320 Associate
★☆☆☆☆
Found in Text Mining only
Ataxia Ataxia Pubtator 32319736, 33417887, 35482004 Associate
★☆☆☆☆
Found in Text Mining only
Autistic Disorder Autism Pubtator 31969655 Associate
★☆☆☆☆
Found in Text Mining only
Carcinoma of lung Lung carcinoma BEFREE 31826912
★☆☆☆☆
Found in Text Mining only
Cataract Cataract BEFREE 26478204
★☆☆☆☆
Found in Text Mining only