UniProt functional annotation for P23193



	UniProt functional annotation for P23193

UniProt code: P23193.

Organism: Homo sapiens (Human).

Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.

Function: Necessary for efficient RNA polymerase II transcription elongation past template-encoded arresting sites. The arresting sites in DNA have the property of trapping a certain fraction of elongating RNA polymerases that pass through, resulting in locked ternary complexes. Cleavage of the nascent transcript by S-II allows the resumption of elongation from the new 3'-terminus.

Subunit: Interacts with EAF2 (By similarity). Associates with UBR5 and forms a transcription regulatory complex made of CDK9, RNAP II, UBR5 and TFIIS/TCEA1 that can stimulate target gene transcription (e.g. gamma fibrinogen/FGG) by recruiting their promoters. {ECO:0000250, ECO:0000269|PubMed:21127351}.

Subcellular location: Nucleus.

Disease: Note=A chromosomal aberration involving TCEA1 may be a cause of salivary gland pleiomorphic adenomas (PA) [181030]. Pleiomorphic adenomas are the most common benign epithelial tumors of the salivary gland. Translocation t(3;8)(p21;q12) with PLAG1. {ECO:0000269|PubMed:10029085}.

Miscellaneous: S-II binds to RNA-polymerase II in the absence of transcription.

Similarity: Belongs to the TFS-II family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.


Organism:		Homo sapiens (Human).
Taxonomy:		Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.



Function:		Necessary for efficient RNA polymerase II transcription elongation past template-encoded arresting sites. The arresting sites in DNA have the property of trapping a certain fraction of elongating RNA polymerases that pass through, resulting in locked ternary complexes. Cleavage of the nascent transcript by S-II allows the resumption of elongation from the new 3'-terminus.


Subunit:		Interacts with EAF2 (By similarity). Associates with UBR5 and forms a transcription regulatory complex made of CDK9, RNAP II, UBR5 and TFIIS/TCEA1 that can stimulate target gene transcription (e.g. gamma fibrinogen/FGG) by recruiting their promoters. {ECO:0000250, ECO:0000269\|PubMed:21127351}.
Subcellular location:		Nucleus.
Disease:		Note=A chromosomal aberration involving TCEA1 may be a cause of salivary gland pleiomorphic adenomas (PA) [181030]. Pleiomorphic adenomas are the most common benign epithelial tumors of the salivary gland. Translocation t(3;8)(p21;q12) with PLAG1. {ECO:0000269\|PubMed:10029085}.
Miscellaneous:		S-II binds to RNA-polymerase II in the absence of transcription.
Similarity:		Belongs to the TFS-II family. {ECO:0000305}.