4ERN

Crystal structure of the C-terminal domain of human XPB/ERCC-3 excision repair protein at 1.80 A

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	TFIIH basal transcription factor complex helicase XPB subunit	polymer	289	33420.2	1	UniProt (P19447) Pfam (PF16203) In PDB	Homo sapiens (human)	Basic transcription factor 2 89 kDa subunit, BTF2 p89, DNA excision repair protein ERCC-3, DNA repair protein complementing XP-B cells, TFIIH basal transcription factor complex 89 kDa subunit, TFIIH 89 kDa subunit, TFIIH p89, Xeroderma pigmentosum group B-complementing protein
2		water	water		18.0	86	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	33420.2
All*	Total formula weight	33420.2

*Water molecules are not included.