6TSH

Beta-galactosidase in complex with deoxygalacto-nojirimycin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Beta-galactosidase	polymer	1040	118395.3	4	UniProt (Q8VNN2) Pfam (PF02837) Pfam (PF00703) Pfam (PF02836) Pfam (PF16353) Pfam (PF02929) UniProt (by SIFTS) (P00722)	Escherichia coli	Beta-gal,Lactase
2	E, G, I, K (A, B, C, D)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
3	F, H, J, L (A, B, C, D)	(2R,3S,4R,5S)-2-(hydroxymethyl)piperidine-3,4,5-triol	non-polymer		163.2	4	Chemie (DGJ)
4	M, N, O, P (A, B, C, D)	water	water		18.0	864	Chemie (HOH)

Sequence modifications

A, B, C, D: 9 - 1023 (UniProt: Q8VNN2)

PDB	External Database	Details
Met -16	-	initiating methionine
Gly -15	-	expression tag
Ser -14	-	expression tag
Ser -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
Ser -6	-	expression tag
Ser -5	-	expression tag
Gly -4	-	expression tag
Leu -3	-	expression tag
Val -2	-	expression tag
Pro -1	-	expression tag
Arg 0	-	expression tag
Gly 1	-	expression tag
Ser 2	-	expression tag
His 3	-	expression tag
Met 4	-	expression tag
Leu 5	-	expression tag
Glu 6	-	expression tag
Asp 7	-	expression tag
Pro 8	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	473581.3
Non-Polymers*	Number of molecules	8
	Total formula weight	749.9
All*	Total formula weight	474331.3

*Water molecules are not included.