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Gene: POLR1B (RNA polymerase I subunit B) Homo sapiens
Symbol: POLR1B
Name: RNA polymerase I subunit B
Description: Predicted to contribute to RNA polymerase I activity. Predicted to be involved in positive regulation of gene expression, epigenetic and transcription by RNA polymerase I. Localizes to the cytosol and nucleolus.
Type: protein-coding
RefSeq Status: VALIDATED
Also known as: DNA-directed RNA polymerase I 135 kDa polypeptide; DNA-directed RNA polymerase I 135kDa polypeptide; DNA-directed RNA polymerase I subunit RPA2; FLJ10816; FLJ21921; MGC131780; polymerase (RNA) I polypeptide B; polymerase (RNA) I polypeptide B, 128kDa; polymerase (RNA) I subunit B; RNA polymerase I subunit 2; RPA135; RPA2; Rpo1-2
Mus musculus (house mouse) : Polr1b (polymerase (RNA) I polypeptide B)  MGI  Alliance
Rattus norvegicus (Norway rat) : Polr1b (RNA polymerase I subunit B)  Alliance
Chinchilla lanigera (long-tailed chinchilla) : Polr1b (RNA polymerase I subunit B)
Pan paniscus (bonobo/pygmy chimpanzee) : POLR1B (RNA polymerase I subunit B)
Canis lupus familiaris (dog) : POLR1B (RNA polymerase I subunit B)
Ictidomys tridecemlineatus (thirteen-lined ground squirrel) : Polr1b (RNA polymerase I subunit B)
Sus scrofa (pig) : POLR1B (RNA polymerase I subunit B)
more info ...
Allele / Splice: See ClinVar data
Latest Assembly: GRCh38 - Human Genome Assembly GRCh38
Human AssemblyChrPosition (strand)SourceGenome Browsers
GRCh382112,542,036 - 112,579,818 (+)NCBIGRCh38GRCh38hg38GRCh38
GRCh372113,298,676 - 113,334,727 (+)NCBIGRCh37GRCh37hg19GRCh37
Build 362113,016,084 - 113,051,879 (+)NCBINCBI36hg18NCBI36
Build 342113,015,843 - 113,051,639NCBI
Celera2106,685,049 - 106,720,277 (+)NCBI
Cytogenetic Map2q14.1NCBI
HuRef2105,754,007 - 105,789,231 (+)NCBIHuRef
CHM1_12113,303,652 - 113,338,873 (+)NCBICHM1_1
JBrowse: View Region in Genome Browser (JBrowse)

Gene-Chemical Interaction Annotations
Gene Ontology Annotations
Molecular Pathway Annotations
References - curated
References - uncurated


Comparative Map Data
Position Markers
miRNA Target Status



Nucleotide Sequences
Protein Sequences
Clinical Variants

Additional Information

External Database Links
Nomenclature History
More on POLR1B
Alliance Gene
Ensembl Gene
JBrowse: hg19 hg38
HGNC Report
NCBI Genome Data Viewer

CRRD Object Information
CRRD ID: 1348858
Created: 2005-03-08
Species: Homo sapiens
Last Modified: 2019-11-26
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.