XPB (ERCC3) Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IHC, WB
Recommend Dilution	WB: 1000-5000 WB positive control: Hela cell lysate IHC: 50-200 Positive control: Human colorectal cancer Predicted cell location: Nucleus
Reactivity	Human, Mouse, Rat
Host	Rabbit
Clonality	Polyclonal
Immunogen	Fusion protein of human ERCC3
Formulation	pH7.4 PBS, 0.05% NaN3, 40% Glycerol
Concentration	lot specific
Purification	Antigen affinity purification
Conjugation	Unconjugated
Storage Condition	Store at -20°C.
Predicted Protein Size	89 kDa
Gene Name	ERCC excision repair 3, TFIIH core complex helicase subunit
Database Link	Entrez Gene 2071 Human UniProt ID P19447
Background	ATP-dependent 3'-5' DNA helicase, component of the general transcription and DNA repair factor IIH (TFIIH) core complex, which is involved in general and transcription-coupled nucleotide excision repair (NER) of damaged DNA and, when complexed to CAK, in RNA transcription by RNA polymerase II. In NER, TFIIH acts by opening DNA around the lesion to allow the excision of the damaged oligonucleotide and its replacement by a new DNA fragment. The ATPase activity of XPB/ERCC3, but not its helicase activity, is required for DNA opening. In transcription, TFIIH has an essential role in transcription initiation (PubMed:8157004, PubMed:30894545). When the pre-initiation complex (PIC) has been established, TFIIH is required for promoter opening and promoter escape (PubMed:8157004). The ATP-dependent helicase activity of XPB/ERCC3 is required for promoter opening and promoter escape. Phosphorylation of the C-terminal tail (CTD) of the largest subunit of RNA polymerase II by the kinase module CAK controls the initiation of transcription.
Synonyms	BTF2; BTF2-p89; GTF2H; RAD25; TFIIH; XPB; XPBC
Reference Data

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