5A6K

GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with Gal-NGT

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)	GH20C	polymer	649	74181.5	2	UniProt (C1CH75) Pfam (PF18229) Pfam (PF00728) Pfam (PF18088) UniProt (by SIFTS) (A0A0H2US73)	STREPTOCOCCUS PNEUMONIAE
2	C, D (A, B)	(2S,3aR,5R,6R,7R,7aR)-5-(hydroxymethyl)-2-methyl-2,3a,5,6,7,7a-hexahydro-1H-pyrano[3,2-d][1,3]thiazole-6,7-diol	non-polymer		221.3	2	Chemie (NSG)
3	E, F (A, B)	water	water		18.0	1096	Chemie (HOH)

Sequence modifications

A, B: 1 - 626 (UniProt: C1CH75)

PDB	External Database	Details
Met -22	-	expression tag
Gly -21	-	expression tag
Ser -20	-	expression tag
Ser -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
Ser -12	-	expression tag
Ser -11	-	expression tag
Gly -10	-	expression tag
Leu -9	-	expression tag
Val -8	-	expression tag
Pro -7	-	expression tag
Arg -6	-	expression tag
Gly -5	-	expression tag
Ser -4	-	expression tag
His -3	-	expression tag
Met -2	-	expression tag
Ala -1	-	expression tag
Ser 0	-	expression tag
Leu 9	Pro 9	conflict
Val 158	Met 158	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	148363.0
Non-Polymers*	Number of molecules	2
	Total formula weight	442.5
All*	Total formula weight	148805.6

*Water molecules are not included.