3OLG

Structures of human pancreatic alpha-amylase in complex with acarviostatin III03

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Pancreatic alpha-amylase	polymer	496	55980.4	1	UniProt (P04746) Pfam (PF00128) Pfam (PF02806) In PDB	Homo sapiens (human)	PA, 1,4-alpha-D-glucan glucanohydrolase
2	B	alpha-D-quinovopyranose-(1-4)-alpha-D-glucopyranose	branched		326.3	1	In PDB GlyTouCan (G96906VH)
3	C	alpha-D-quinovopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		488.4	1	In PDB GlyTouCan (G51132RN)
4	D	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		666.6	1	In PDB GlyTouCan (G69211UR)
5	E	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		504.4	1	In PDB BIRD (PRD_900065) GlyTouCan (G00395FS)		beta-maltotriose
6	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
7	A	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
8	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
9	A	(1S,2S,3R,6R)-6-amino-4-(hydroxymethyl)cyclohex-4-ene-1,2,3-triol	non-polymer		175.2	2	Chemie (HSD)
10	A	PYROGLUTAMIC ACID	non-polymer		129.1	1	Chemie (PCA)
11	A	alpha-D-glucopyranose	non-polymer		180.2	1	Chemie (GLC)
12		water	water		18.0	263	Chemie (HOH)

Sequence modifications

A: 1 - 496 (UniProt: P04746)

PDB	External Database	Details
Met 287	Val 302	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	55980.4
Branched	Number of molecules	4
	Total formula weight	1985.8
Non-Polymers*	Number of molecules	7
	Total formula weight	831.2
All*	Total formula weight	58797.4

*Water molecules are not included.