Structure of PDB 1o3s Chain A Binding Site BS01

Receptor Information
>1o3s Chain A (length=200) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
DPTLEWFLSHCHIHKYPSKSTLIHQGEKAETLYYIVKGSVAVLIKDEEGK
EMILSYLNQGDFIGELGLFEEGQERSAWVRAKTACEVAEISYKKFRQLIQ
VNPDILMRLSAQMARRLQVTSEKVGNLAFLDVTGRIAQTLLNLAKQPDAM
THPDGMQIKITRQEIGQIVGCSRDTVGRILKMLEDQNLISAHGKTIVVYG
Ligand information
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1o3s Indirect Readout of DNA Sequence at the Primary-kink Site in the CAP-DNA Complex: Alteration of DNA Binding Specificity Through Alteration of DNA Kinking
Resolution3.0 Å
Binding residue
(original residue number in PDB)		T168 R169 Q170 R180 R185 K188
Binding residue
(residue number reindexed from 1)		T161 R162 Q163 R173 R178 K181
Binding affinityPDBbind-CN: Kd=14pM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0003680 minor groove of adenine-thymine-rich DNA binding
GO:0003700 DNA-binding transcription factor activity
GO:0005515 protein binding
GO:0008301 DNA binding, bending
GO:0030552 cAMP binding
GO:0042802 identical protein binding
GO:0043565 sequence-specific DNA binding
Biological Process
GO:0006351 DNA-templated transcription
GO:0006355 regulation of DNA-templated transcription
GO:0045013 carbon catabolite repression of transcription
GO:0045892 negative regulation of DNA-templated transcription
GO:0045893 positive regulation of DNA-templated transcription
Cellular Component
GO:0005829 cytosol
GO:0032993 protein-DNA complex

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1o3s, PDBe:1o3s, PDBj:1o3s
PDBsum1o3s
PubMed11724533
UniProtP0ACJ8|CRP_ECOLI DNA-binding transcriptional dual regulator CRP (Gene Name=crp)

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