Structure of PDB 1ht6 Chain A Binding Site BS01

Receptor Information
>1ht6 Chain A (length=404) Species: 4513 (Hordeum vulgare) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
HQVLFQGFNWESWKQSGGWYNMMMGKVDDIAAAGVTHVWLPPPSHSVSNE
GYMPGRLYDIDASKYGNAAELKSLIGALHGKGVQAIADIVINHRCADYKD
SRGIYCIFEGGTSDGRLDWGPHMICRDDTKYSDGTANLDTGADFAAAPDI
DHLNDRVQRELKEWLLWLKSDLGFDAWRLDFARGYSPEMAKVYIDGTSPS
LAVAEVWDNMATGGDGKPNYDQDAHRQNLVNWVDKVGGAASAGMVFDFTT
KGILNAAVEGELWRLIDPQGKAPGVMGWWPAKAVTFVDNHDTGSTQAMWP
FPSDKVMQGYAYILTHPGIPCIFYDHFFNWGFKDQIAALVAIRKRNGITA
TSALKILMHEGDAYVAEIDGKVVVKIGSRYDVGAVIPAGFVTSAHGNDYA
VWEK
Ligand information
Ligand IDCA
InChIInChI=1S/Ca/q+2
InChIKeyBHPQYMZQTOCNFJ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Ca++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Ca+2]
FormulaCa
NameCALCIUM ION
ChEMBL
DrugBankDB14577
ZINC
PDB chain1ht6 Chain A Residue 500 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1ht6 The structure of barley alpha-amylase isozyme 1 reveals a novel role of domain C in substrate recognition and binding: a pair of sugar tongs
Resolution1.5 Å
Binding residue
(original residue number in PDB)		N92 D139 G141 A142 D149 G184
Binding residue
(residue number reindexed from 1)		N92 D139 G141 A142 D149 G184
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) D180 E205 D291
Catalytic site (residue number reindexed from 1) D180 E205 D291
Enzyme Commision number 3.2.1.1: alpha-amylase.
Gene Ontology
Molecular Function
GO:0004556 alpha-amylase activity
GO:0005509 calcium ion binding
GO:0016798 hydrolase activity, acting on glycosyl bonds
GO:0043169 cation binding
GO:0046872 metal ion binding
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0005983 starch catabolic process
Cellular Component
GO:0005576 extracellular region

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1ht6, PDBe:1ht6, PDBj:1ht6
PDBsum1ht6
PubMed12906828
UniProtP00693|AMY1_HORVU Alpha-amylase type A isozyme (Gene Name=AMY1.1)

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