3PC7

X-ray crystal structure of the DNA ligase III-alpha BRCT domain.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	DNA ligase 3	polymer	88	10000.2	2	UniProt (P49916) Pfam (PF16759)	Homo sapiens (human)	DNA ligase III, Polydeoxyribonucleotide synthase [ATP] 3
2	C, D (A, B)	water	water		18.0	171	Chemie (HOH)

Sequence modifications

A, B: 837 - 922 (UniProt: P49916)

PDB	External Database	Details
Gly 835	-	expression tag
Ser 836	-	expression tag
Ser 842	Cys 929	engineered mutation
Ser 922	Cys 1009	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	20000.4
All*	Total formula weight	20000.4

*Water molecules are not included.