Structure of PDB 1rk2 Chain D Binding Site BS01

Receptor Information
>1rk2 Chain D (length=305) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AGSLVVLGSINADHILNLQSFPTPGETVTGNHYQVAFGGKGANQAVAAGR
SGANIAFIACTGDDSIGESVRQQLATDNIDITPVSVIKGESTGVALIFVN
GEGENVIGIHAGANAALSPALVEAQRERIANASALLMQLESPLESVMAAA
KIAHQNKTIVALNPAPARELPDELLALVDIITPNETEAEKLTGIRVENDE
DAAKAAQVLHEKGIRTVLITLGSRGVWASVNGEGQRVPGFRVQAVDTIAA
GDTFNGALITALLEEKPLPEAIRFAHAAAAIAVTRKGAQPSVPWREEIDA
FLDRQ
Ligand information
Ligand IDRIB
InChIInChI=1S/C5H10O5/c6-1-2-3(7)4(8)5(9)10-2/h2-9H,1H2/t2-,3-,4-,5+/m1/s1
InChIKeyHMFHBZSHGGEWLO-AIHAYLRMSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0C(C1C(C(C(O1)O)O)O)O
CACTVS 3.341OC[CH]1O[CH](O)[CH](O)[CH]1O
CACTVS 3.341OC[C@H]1O[C@H](O)[C@H](O)[C@@H]1O
OpenEye OEToolkits 1.5.0C([C@@H]1[C@H]([C@H]([C@H](O1)O)O)O)O
ACDLabs 10.04OC1C(OC(O)C1O)CO
FormulaC5 H10 O5
Namealpha-D-ribofuranose;
alpha-D-ribose;
D-ribose;
ribose
ChEMBLCHEMBL606078
DrugBank
ZINCZINC000003860714
PDB chain1rk2 Chain D Residue 311 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1rk2 Induced fit on sugar binding activates ribokinase.
Resolution2.25 Å
Binding residue
(original residue number in PDB)		N14 D16 G41 G42 K43 N46 A98 E143 D255
Binding residue
(residue number reindexed from 1)		N11 D13 G38 G39 K40 N43 A95 E140 D252
Annotation score5
Enzymatic activity
Catalytic site (original residue number in PDB) A252 A253 G254 D255
Catalytic site (residue number reindexed from 1) A249 A250 G251 D252
Enzyme Commision number 2.7.1.15: ribokinase.
Gene Ontology
Molecular Function
GO:0004747 ribokinase activity
GO:0005524 ATP binding
GO:0016301 kinase activity
GO:0042803 protein homodimerization activity
GO:0046872 metal ion binding
Biological Process
GO:0006014 D-ribose metabolic process
GO:0016310 phosphorylation
GO:0019303 D-ribose catabolic process
GO:0046835 carbohydrate phosphorylation
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1rk2, PDBe:1rk2, PDBj:1rk2
PDBsum1rk2
PubMed10438599
UniProtP0A9J6|RBSK_ECOLI Ribokinase (Gene Name=rbsK)

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