Structure of PDB 1bli Chain A Binding Site BS03

Receptor Information
>1bli Chain A (length=481) Species: 1402 (Bacillus licheniformis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LNGTLMQYFEWYMPNDGQHWKRLQNDSAYLAEHGITAVWIPPAYKGTSQA
DVGYGAYDLYDLGEFHQKGTVRTKYGTKGELQSAIKSLHSRDINVYGDVV
INHKGGADATEDVTAVEVDPADRNRVISGEHLIKAWTHFHFPGRGSTYSD
FKWHWYHFDGTDWDESRKLNRIYKFQGKAWDWEVSNEFGNYDYLMYADID
YDHPDVAAEIKRWGTWYANELQLDGFRLDAVKHIKFSFLRDWVNHVREKT
GKEMFTVAEYWSYDLGALENYLNKTNFNHSVFDVPLHYQFHAASTQGGGY
DMRKLLNGTVVSKHPLKSVTFVDNHDTQPGQSLESTVQTWFKPLAYAFIL
TRESGYPQVFYGDMYGTKGDSQREIPALKHKIEPILKARKQYAYGAQHDY
FDHHDIVGWTREGDSSVANSGLAALITDGPGGAKRMYVGRQNAGETWHDI
TGNRSEPVVINSAGWGEFHVNGGSVSIYVQR
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 chain1bli Chain A Residue 700 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1bli Activation of Bacillus licheniformis alpha-amylase through a disorder-->order transition of the substrate-binding site mediated by a calcium-sodium-calcium metal triad.
Resolution1.9 Å
Binding residue
(original residue number in PDB)		G300 Y302 H406 D407 D430
Binding residue
(residue number reindexed from 1)		G298 Y300 H404 D405 D428
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) R229 D231 E261 H327 D328
Catalytic site (residue number reindexed from 1) R227 D229 E259 H325 D326
Enzyme Commision number 3.2.1.1: alpha-amylase.
Gene Ontology
Molecular Function
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0004556 alpha-amylase activity
GO:0005509 calcium ion binding
GO:0016798 hydrolase activity, acting on glycosyl bonds
GO:0046872 metal ion binding
Biological Process
GO:0005975 carbohydrate metabolic 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:1bli, PDBe:1bli, PDBj:1bli
PDBsum1bli
PubMed9551551
UniProtP06278|AMY_BACLI Alpha-amylase (Gene Name=amyS)

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