2ZUW

Crystal structure of Galacto-N-biose/Lacto-N-biose I phosphorylase in complex with GlcNAc and sulfate

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	Lacto-N-biose phosphorylase	polymer	759	85484.1	4	UniProt (Q5NU17) Pfam (PF09508) Pfam (PF17385) Pfam (PF17386) UniProt (by SIFTS) (E8MF13) In PDB	Bifidobacterium longum	Galacto-N-biose/Lacto-N-biose I phosphorylase
2	A, B, C, D	2-acetamido-2-deoxy-alpha-D-glucopyranose	non-polymer		221.2	4	Chemie (NDG)
3	A, B, C, D	GLYCEROL	non-polymer		92.1	6	Chemie (GOL)
4	A	NITRATE ION	non-polymer		62.0	1	Chemie (NO3)
5	B	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
6	D	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
7		water	water		18.0	2281	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 751 (UniProt: Q5NU17)

PDB	External Database	Details
Leu 752	-	expression tag
Glu 753	-	expression tag
His 754	-	expression tag
His 755	-	expression tag
His 756	-	expression tag
His 757	-	expression tag
His 758	-	expression tag
His 759	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	341936.2
Non-Polymers*	Number of molecules	13
	Total formula weight	1619.8
All*	Total formula weight	343556.0

*Water molecules are not included.