3L4U

Crystal complex of N-terminal Human Maltase-Glucoamylase with de-O-sulfonated kotalanol

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Maltase-glucoamylase, intestinal	polymer	875	99276.7	1	UniProt (O43451) Pfam (PF00088) Pfam (PF13802) Pfam (PF01055) Pfam (PF21365) In PDB	Homo sapiens (human)	Maltase, Alpha-glucosidase, Glucoamylase, Glucan 1,4-alpha-glucosidase
2	B	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	1	In PDB GlyTouCan (G42666HT)
3	A	(2R,3S,4S)-1-[(2S,3S,4R,5R,6S)-2,3,4,5,6,7-hexahydroxyheptyl]-3,4-dihydroxy-2-(hydroxymethyl)tetrahydrothiophenium (non-preferred name)	non-polymer		345.4	1	Chemie (DSK)
4	A	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	2	Chemie (NAG)
5	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
6		water	water		18.0	596	Chemie (HOH)

Sequence modifications

A: 1 - 868 (UniProt: O43451)

PDB	External Database	Details
Asp 772	Asn 858	variant
Ala 869	-	expression tag
His 870	-	expression tag
His 871	-	expression tag
His 872	-	expression tag
His 873	-	expression tag
His 874	-	expression tag
His 875	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	99276.7
Branched	Number of molecules	1
	Total formula weight	424.4
Non-Polymers*	Number of molecules	4
	Total formula weight	883.9
All*	Total formula weight	100585.0

*Water molecules are not included.