4MAD

Crystal structure of beta-galactosidase C (BgaC) from Bacillus circulans ATCC 31382

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)	Beta-galactosidase	polymer	600	68579.2	2	UniProt (O31341)	Bacillus circulans
2	C, D, E (A, B)	2-(2-METHOXYETHOXY)ETHANOL	non-polymer		120.1	3	Chemie (PG0)
3	F, G (A, B)	water	water		18.0	425	Chemie (HOH)

Sequence modifications

A, B: 1 - 586 (UniProt: O31341)

PDB	External Database	Details
Met -13	-	expression tag
Gly -12	-	expression tag
Ser -11	-	expression tag
Ser -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
Ser -3	-	expression tag
Gln -2	-	expression tag
Asp -1	-	expression tag
Pro 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	137158.5
Non-Polymers*	Number of molecules	3
	Total formula weight	360.4
All*	Total formula weight	137518.9

*Water molecules are not included.