RNA polymerase II subunit B

mammalian protein found in Homo sapiens

Protein protein Q21123390

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RNA polymerase II subunit B

Summary

RNA polymerase II subunit B is a protein^[1]. It is known by 10 alternative names across languages and contexts.^[2]

Key Facts

RNA polymerase II subunit B's instance of is recorded as protein^[3].
RNA polymerase II subunit B is part of DNA-directed RNA polymerase, subunit 2^[4].
RNA polymerase II subunit B is part of DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily^[5].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, domain 2 superfamily^[6].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, OB-fold^[7].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, domain 3, protein family^[8].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, domain 7, protein family^[9].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, domain 2, protein family^[10].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, domain 5, protein family^[11].
RNA polymerase II subunit B is part of RNA polymerase Rpb2, domain 4, protein family^[12].
RNA polymerase II subunit B is part of RNA polymerase, beta subunit, protrusion, protein family^[13].
RNA polymerase II subunit B is part of DNA-directed RNA polymerase, subunit 2, hybrid-binding domain, protein family^[14].
RNA polymerase II subunit B is part of RNA polymerase, beta subunit, conserved site, protein family^[15].
RNA polymerase II subunit B comprises RNA polymerase Rpb2, domain 2^[16].
RNA polymerase II subunit B comprises RNA polymerase Rpb2, domain 3^[17].
RNA polymerase II subunit B comprises RNA polymerase Rpb2, domain 4^[18].
RNA polymerase II subunit B comprises DNA-directed RNA polymerase, subunit 2, hybrid-binding domain^[19].
RNA polymerase II subunit B comprises RNA polymerase, beta subunit, protrusion^[20].
RNA polymerase II subunit B comprises RNA polymerase, beta subunit, conserved site^[21].
RNA polymerase II subunit B comprises RNA polymerase Rpb2, domain 5^[22].
RNA polymerase II subunit B comprises RNA polymerase Rpb2, domain 7^[23].
RNA polymerase II subunit B's molecular function is recorded as transferase activity^[24].
RNA polymerase II subunit B's molecular function is recorded as DNA binding^[25].
RNA polymerase II subunit B's molecular function is recorded as nucleotidyltransferase activity^[26].
RNA polymerase II subunit B's molecular function is recorded as ribonucleoside binding^[27].

Why It Matters

RNA polymerase II subunit B is known by 10 alternative names across languages and contexts.^[2]

⭐ Popularity Graph

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Quick Facts

Instance of protein

Part of DNA-directed RNA polymerase, subunit 2, DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily, RNA polymerase Rpb2, domain 2 superfamily, RNA polymerase Rpb2, OB-fold, RNA polymerase Rpb2, domain 3, protein family, RNA polymerase Rpb2, domain 7, protein family, RNA polymerase Rpb2, domain 2, protein family, RNA polymerase Rpb2, domain 5, protein family, RNA polymerase Rpb2, domain 4, protein family, RNA polymerase, beta subunit, protrusion, protein family, DNA-directed RNA polymerase, subunit 2, hybrid-binding domain, protein family, RNA polymerase, beta subunit, conserved site, protein family

Properties

Biological process mRNA splicing, via spliceosome, somatic stem cell population maintenance, transcription elongation from RNA polymerase II promoter, 7-methylguanosine mRNA capping, transcription by RNA polymerase II, positive regulation of viral transcription, transcription-coupled nucleotide-excision repair, transcription initiation from RNA polymerase II promoter, snRNA transcription by RNA polymerase II, fibroblast growth factor receptor signaling pathway, transcription, DNA-templated, RNA metabolic process, regulation of gene silencing by miRNA, transcription, DNA-templated

Cell component membrane, RNA polymerase II, core complex, nucleus, nucleoplasm, RNA polymerase II, core complex, membrane

Ec enzyme number 2.7.7.48, 2.7.7.6

Encoded by POLR2B

Found in taxon Homo sapiens

Has part(s) RNA polymerase Rpb2, domain 2, RNA polymerase Rpb2, domain 3, RNA polymerase Rpb2, domain 4, DNA-directed RNA polymerase, subunit 2, hybrid-binding domain, RNA polymerase, beta subunit, protrusion, RNA polymerase, beta subunit, conserved site, RNA polymerase Rpb2, domain 5, RNA polymerase Rpb2, domain 7

Molecular function transferase activity, DNA binding, nucleotidyltransferase activity, ribonucleoside binding, RNA polymerase II activity, chromatin binding, metal ion binding, DNA-directed 5'-3' RNA polymerase activity, protein binding, RNA binding, RNA binding, DNA-directed 5'-3' RNA polymerase activity

External References (4)

Ensembl protein id ENSP00000312735, ENSP00000370625, ENSP00000391096, ENSP00000391452, ENSP00000407728, ENSP00000408638, ENSP00000491706

Pdb structure id 5IY9, 5IYA, 5IYC, 5IYB, 5IY7, 5IY8, 5IYD, 5IY6

Refseq protein id NP_000929, NP_001290197, NP_001290198

Uniprot protein id P30876

🏷️ Also known as

en DNA-directed RNA polymerase II 140 kDa polypeptide en DNA-directed RNA polymerase II subunit B en DNA-directed RNA polymerase II subunit RPB2 en POLR2B en polymerase (RNA) II (DNA directed) polypeptide B, 140kDa en polymerase (RNA) II subunit B en RNA polymerase II second largest subunit en RNA polymerase II subunit 2 en RNA polymerase II subunit B en RNA polymerase II subunit B2

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA

4ort.xyz Knowledge Graph. (2026). RNA polymerase II subunit B. Retrieved May 3, 2026, from https://4ort.xyz/entity/rna-polymerase-ii-subunit-b

MLA

“RNA polymerase II subunit B.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rna-polymerase-ii-subunit-b.

BibTeX

@misc{4ortxyz_rna-polymerase-ii-subunit-b_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{RNA polymerase II subunit B}}, year = {2026}, url = {https://4ort.xyz/entity/rna-polymerase-ii-subunit-b}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): RNA polymerase II subunit B — https://4ort.xyz/entity/rna-polymerase-ii-subunit-b (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/rna-polymerase-ii-subunit-b · Last refreshed: May 3, 2026

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

9w ago · Boghog · 2026-07-24 view diff on Wikidata ↗

Imported from → —

Encoded by → POLR2B

Wikidata description → mammalian protein found in Homo sapiens

Molecular function → transferase activity, DNA binding, nucleotidyltransferase activity +9

+ 11 other properties edited (see Wikidata diff for full list)

"/* wbcreateclaim-create:1| */ [[Property:P591]]: 2.7.7.48, [[:toollabs:quickstatements/#/batch/261491|batch #261491]]"

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RNA polymerase II subunit B

RNA polymerase II subunit B

Summary

Key Facts

Why It Matters

References

Direct Wikidata claims

Class ancestry

Aggregate / graph-position facts

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