Polr3b polymerase (RNA) III (DNA directed) polypeptide B [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Polr3bprovided by MGI
Official Full Name: polymerase (RNA) III (DNA directed) polypeptide Bprovided by MGI
Primary source: MGI:MGI:1917678
See related: Ensembl:ENSMUSG00000034453 AllianceGenome:MGI:1917678
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: C128; RPC2; 2700078H01Rik; A330032P03Rik
Summary: Predicted to enable DNA-directed 5'-3' RNA polymerase activity; DNA/RNA hybrid binding activity; and zinc ion binding activity. Predicted to contribute to RNA polymerase III activity. Predicted to be involved in positive regulation of innate immune response; positive regulation of interferon-beta production; and snRNA transcription by RNA polymerase III. Predicted to be located in cytoplasm. Predicted to be part of RNA polymerase III complex. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease and hypomyelinating leukodystrophy 8. Orthologous to human POLR3B (RNA polymerase III subunit B). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Ubiquitous expression in CNS E11.5 (RPKM 5.5), CNS E14 (RPKM 4.2) and 28 other tissues See more
Orthologs: human all
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Genomic context

Location:: 10 C1; 10 41.58 cM

Exon count:: 29

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	10	NC_000076.7 (84458156..84563042)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	10	NC_000076.6 (84622292..84727178)

Chromosome 10 - NC_000076.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Polr3b heterozygosity in mice induces both beneficial and deleterious effects on health during ageing with no effect on lifespan.
Title: Polr3b heterozygosity in mice induces both beneficial and deleterious effects on health during ageing with no effect on lifespan.
missense mutations in Polr3a and Polr3b can variably impair mouse development and Pol III function.
Title: The leukodystrophy mutation Polr3b R103H causes homozygote mouse embryonic lethality and impairs RNA polymerase III biogenesis.
The Polr3b in the hippocampus in the prefrontal cortex of the DBA/2 J strain were up-regulated.
Title: Association of brain immune genes with social behavior of inbred mouse strains.

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Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Endonuclease-mediated (8)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables DNA binding	IEA Inferred from Electronic Annotation more info
enables DNA-directed 5'-3' RNA polymerase activity	ISO Inferred from Sequence Orthology more info
enables DNA/RNA hybrid binding	IEA Inferred from Electronic Annotation more info
enables DNA/RNA hybrid binding	ISO Inferred from Sequence Orthology more info
enables RNA polymerase I activity	IEA Inferred from Electronic Annotation more info
enables RNA polymerase II activity	IEA Inferred from Electronic Annotation more info
contributes_to RNA polymerase III activity	IBA Inferred from Biological aspect of Ancestor more info
enables RNA polymerase III activity	IEA Inferred from Electronic Annotation more info
enables RNA polymerase IV activity	IEA Inferred from Electronic Annotation more info
enables RNA polymerase V activity	IEA Inferred from Electronic Annotation more info
enables mitochondrial single subunit type RNA polymerase activity	IEA Inferred from Electronic Annotation more info
enables plastid single subunit type RNA polymerase activity	IEA Inferred from Electronic Annotation more info
enables ribonucleoside binding	IEA Inferred from Electronic Annotation more info
enables zinc ion binding	IEA Inferred from Electronic Annotation more info
enables zinc ion binding	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
involved_in defense response to virus	IEA Inferred from Electronic Annotation more info
involved_in innate immune response	IEA Inferred from Electronic Annotation more info
involved_in mitochondrial transcription	IEA Inferred from Electronic Annotation more info
involved_in plastid transcription	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of innate immune response	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of innate immune response	ISS Inferred from Sequence or Structural Similarity more info
involved_in positive regulation of interferon-beta production	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of interferon-beta production	ISS Inferred from Sequence or Structural Similarity more info
involved_in snRNA transcription by RNA polymerase III	IEA Inferred from Electronic Annotation more info
involved_in snRNA transcription by RNA polymerase III	ISO Inferred from Sequence Orthology more info
involved_in transcription by RNA polymerase I	IEA Inferred from Electronic Annotation more info
involved_in transcription by RNA polymerase II	IEA Inferred from Electronic Annotation more info
involved_in transcription by RNA polymerase IV	IEA Inferred from Electronic Annotation more info
involved_in transcription by RNA polymerase V	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
part_of RNA polymerase III complex	IBA Inferred from Biological aspect of Ancestor more info
part_of RNA polymerase III complex	ISO Inferred from Sequence Orthology more info
located_in cytoplasm	ISO Inferred from Sequence Orthology more info
located_in cytosol	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: DNA-directed RNA polymerase III subunit RPC2

Names: DNA-directed RNA polymerase III 127.6 kDa polypeptide; DNA-directed RNA polymerase III subunit B; RNA polymerase III subunit C2; RNA polymerase III subunit RPC2 homolog

NP_081699.1

EC 2.7.7.6

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_027423.2 → NP_081699.1 DNA-directed RNA polymerase III subunit RPC2

See identical proteins and their annotated locations for NP_081699.1

Status: VALIDATED

Source sequence(s)

AK165886, BC068143

Consensus CDS

CCDS24081.1

UniProtKB/Swiss-Prot

P59470, Q6NVF3

Related

ENSMUSP00000076418.6, ENSMUST00000077175.7

Conserved Domains (3) summary

cd00653
Location:39 → 1127

RNA_pol_B_RPB2; RNA polymerase beta subunit. RNA polymerases catalyse the DNA dependent polymerization of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Each RNA polymerase ...

pfam04566
Location:539 → 600

RNA_pol_Rpb2_4; RNA polymerase Rpb2, domain 4

pfam04567
Location:621 → 661

RNA_pol_Rpb2_5; RNA polymerase Rpb2, domain 5