Structure of PDB 1eo5 Chain A Binding Site BS13

Receptor Information
>1eo5 Chain A (length=686) Species: 1397 (Niallia circulans) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
APDTSVSNKQNFSTDVIYQIFTDRFSDGNPANNPTGAAFDGTCTNLRLYC
GGDWQGIINKINDGYLTGMGVTAIWISQPVENIYSIINYSGVNNTAYHGY
WARDFKKTNPAYGTIADFQNLIAAAHAKNIKVIIDFAPNHTSPASSDQPS
FAENGRLYDNGTLLGGYTNDTQNLFHHNGGTDFSTTENGIYKNLYDLADL
NHNNSTVDVYLKDAIKMWLDLGIDGIRMAAVKHMPFGWQKSFMAAVNNYK
PVFTFGAWFLGVNEVSPENHKFANESGMSLLDFRFAQKVRQVFRDNTDNM
YGLKAMLEGSAADYAQVDDQVTFIDNHDMERFHASNANRRKLEQALAFTL
TSRGVPAIYYGTEQYMSGGTDPDNRARIPSFSTSTTAYQVIQKLAPLRKS
NPAIAYGSTQERWINNDVLIYERKFGSNVAVVAVNRNLNAPASISGLVTS
LPQGSYNDVLGGLLNGNTLSVGSGGAASNFTLAAGGTAVWQYTAATATPT
IGHVGPMMAKPGVTITIDGRGFGSSKGTVYFGTTAVSGADITSWEDTQIK
VKIPAVAGGNYNIKVANAAGTASNVYDNFEVLSGDQVSVRFVVNNATTAL
GQNVYLTGSVSELGNWDPAKAIGPMYNQVVYQYPNWYYDVSVPAGKTIEF
KFLKKQGSTVTWEGGSNHTFTAPSSGTATINVNWQP
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 chain1eo5 Chain A Residue 688 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1eo5 Structures of maltohexaose and maltoheptaose bound at the donor sites of cyclodextrin glycosyltransferase give insight into the mechanisms of transglycosylation activity and cyclodextrin size specificity.
Resolution2.0 Å
Binding residue
(original residue number in PDB)		D27 N29 N32 N33 G51 D53
Binding residue
(residue number reindexed from 1)		D27 N29 N32 N33 G51 D53
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) D135 R227 A229 A257 H327 D328
Catalytic site (residue number reindexed from 1) D135 R227 A229 A257 H327 D328
Enzyme Commision number 2.4.1.19: cyclomaltodextrin glucanotransferase.
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0016757 glycosyltransferase activity
GO:0030246 carbohydrate binding
GO:0043169 cation binding
GO:0043895 cyclomaltodextrin glucanotransferase activity
GO:0046872 metal ion binding
GO:2001070 starch 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:1eo5, PDBe:1eo5, PDBj:1eo5
PDBsum1eo5
PubMed10869182
UniProtP43379|CDGT2_NIACI Cyclomaltodextrin glucanotransferase (Gene Name=cgt)

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