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2GZW

Crystal structure of the E.coli CRP-cAMP complex

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0003677molecular_functionDNA binding
A0003680molecular_functionminor groove of adenine-thymine-rich DNA binding
A0003700molecular_functionDNA-binding transcription factor activity
A0005515molecular_functionprotein binding
A0005829cellular_componentcytosol
A0006351biological_processDNA-templated transcription
A0006355biological_processregulation of DNA-templated transcription
A0008301molecular_functionDNA binding, bending
A0030552molecular_functioncAMP binding
A0032993cellular_componentprotein-DNA complex
A0042802molecular_functionidentical protein binding
A0043565molecular_functionsequence-specific DNA binding
A0045013biological_processcarbon catabolite repression of transcription
A0045892biological_processnegative regulation of DNA-templated transcription
A0045893biological_processpositive regulation of DNA-templated transcription
B0000166molecular_functionnucleotide binding
B0003677molecular_functionDNA binding
B0003680molecular_functionminor groove of adenine-thymine-rich DNA binding
B0003700molecular_functionDNA-binding transcription factor activity
B0005515molecular_functionprotein binding
B0005829cellular_componentcytosol
B0006351biological_processDNA-templated transcription
B0006355biological_processregulation of DNA-templated transcription
B0008301molecular_functionDNA binding, bending
B0030552molecular_functioncAMP binding
B0032993cellular_componentprotein-DNA complex
B0042802molecular_functionidentical protein binding
B0043565molecular_functionsequence-specific DNA binding
B0045013biological_processcarbon catabolite repression of transcription
B0045892biological_processnegative regulation of DNA-templated transcription
B0045893biological_processpositive regulation of DNA-templated transcription
C0000166molecular_functionnucleotide binding
C0003677molecular_functionDNA binding
C0003680molecular_functionminor groove of adenine-thymine-rich DNA binding
C0003700molecular_functionDNA-binding transcription factor activity
C0005515molecular_functionprotein binding
C0005829cellular_componentcytosol
C0006351biological_processDNA-templated transcription
C0006355biological_processregulation of DNA-templated transcription
C0008301molecular_functionDNA binding, bending
C0030552molecular_functioncAMP binding
C0032993cellular_componentprotein-DNA complex
C0042802molecular_functionidentical protein binding
C0043565molecular_functionsequence-specific DNA binding
C0045013biological_processcarbon catabolite repression of transcription
C0045892biological_processnegative regulation of DNA-templated transcription
C0045893biological_processpositive regulation of DNA-templated transcription
D0000166molecular_functionnucleotide binding
D0003677molecular_functionDNA binding
D0003680molecular_functionminor groove of adenine-thymine-rich DNA binding
D0003700molecular_functionDNA-binding transcription factor activity
D0005515molecular_functionprotein binding
D0005829cellular_componentcytosol
D0006351biological_processDNA-templated transcription
D0006355biological_processregulation of DNA-templated transcription
D0008301molecular_functionDNA binding, bending
D0030552molecular_functioncAMP binding
D0032993cellular_componentprotein-DNA complex
D0042802molecular_functionidentical protein binding
D0043565molecular_functionsequence-specific DNA binding
D0045013biological_processcarbon catabolite repression of transcription
D0045892biological_processnegative regulation of DNA-templated transcription
D0045893biological_processpositive regulation of DNA-templated transcription
Functional Information from PDB Data
site_idAC1
Number of Residues14
DetailsBINDING SITE FOR RESIDUE CMP A 1301
ChainResidue
AVAL49
AALA84
ATHR127
AHOH1303
AHOH1317
BSER128
ALEU61
ASER62
AILE70
AGLY71
AGLU72
ALEU73
AARG82
ASER83

site_idAC2
Number of Residues12
DetailsBINDING SITE FOR RESIDUE CMP A 1302
ChainResidue
ALYS57
AGLU58
AGLN170
AGLY173
AGLN174
AGLY177
ACYS178
ASER179
AARG180
AHOH1355
AHOH1357
BALA135

site_idAC3
Number of Residues17
DetailsBINDING SITE FOR RESIDUE CMP B 401
ChainResidue
ALEU124
ASER128
AHOH1322
BVAL49
BILE70
BGLY71
BGLU72
BLEU73
BGLY74
BARG82
BSER83
BALA84
BVAL86
BARG123
BTHR127
BHOH975
BHOH977

site_idAC4
Number of Residues15
DetailsBINDING SITE FOR RESIDUE CMP C 2301
ChainResidue
CVAL49
CLEU61
CGLY71
CGLU72
CLEU73
CARG82
CSER83
CALA84
CVAL86
CARG123
CTHR127
CHOH2303
CHOH2304
DSER128
DHOH3003

site_idAC5
Number of Residues12
DetailsBINDING SITE FOR RESIDUE CMP C 2302
ChainResidue
CLYS57
CGLU58
CGLN170
CGLY173
CGLN174
CGLY177
CCYS178
CSER179
CARG180
CHOH2363
DALA135
DHOH3067

site_idAC6
Number of Residues18
DetailsBINDING SITE FOR RESIDUE CMP D 2401
ChainResidue
CLEU124
CSER128
DILE30
DVAL49
DLEU61
DILE70
DGLY71
DGLU72
DLEU73
DGLY74
DARG82
DSER83
DALA84
DARG123
DTHR127
DHOH2974
DHOH2977
DHOH2997

site_idAC7
Number of Residues12
DetailsBINDING SITE FOR RESIDUE CMP B 973
ChainResidue
BHOH1037
AALA135
APHE136
BLYS57
BGLU58
BGLN170
BGLY173
BGLN174
BGLY177
BCYS178
BSER179
BARG180

site_idAC8
Number of Residues11
DetailsBINDING SITE FOR RESIDUE CMP D 2973
ChainResidue
CALA135
DLYS57
DGLU58
DGLN170
DGLY173
DGLN174
DGLY177
DCYS178
DSER179
DARG180
DHOH3065

Functional Information from PROSITE/UniProt
site_idPS00042
Number of Residues24
DetailsHTH_CRP_1 Crp-type HTH domain signature. ITRqeIGqIVGcSreTv.GRiLkmL
ChainResidueDetails
AILE167-LEU190

site_idPS00888
Number of Residues17
DetailsCNMP_BINDING_1 Cyclic nucleotide-binding domain signature 1. LIhQGEkAEtLYYIvkG
ChainResidueDetails
ALEU29-GLY45

site_idPS00889
Number of Residues19
DetailsCNMP_BINDING_2 Cyclic nucleotide-binding domain signature 2. IGElGLfeegqe.....RSAwVrA
ChainResidueDetails
AILE70-ALA88

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues24
DetailsDNA binding: {"description":"H-T-H motif","evidences":[{"source":"PROSITE-ProRule","id":"PRU00387","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues8
DetailsRegion: {"description":"Activating region 2 (AR2); probably contacts the N-terminus of RpoA","evidences":[{"source":"PubMed","id":"8978616","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues24
DetailsRegion: {"description":"Activating region 3 (AR3); probably contacts sigma-70 (RpoD)","evidences":[{"source":"PubMed","id":"10860739","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"10860740","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues36
DetailsRegion: {"description":"Activating region 1 (AR1); probably contacts the C-terminus of RpoA","evidences":[{"source":"PubMed","id":"7966284","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8392187","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues84
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11124031","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"12202833","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"1653449","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"2828639","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"6286624","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8757802","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues4
DetailsSite: {"description":"Activating region 2 (AR2); probably contacts the N-terminus of RpoA","evidences":[{"source":"PubMed","id":"8978616","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues4
DetailsSite: {"description":"Activating region 2 (AR2); probably contacts the N-terminus of RpoA","evidences":[{"source":"PubMed","id":"15520470","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8978616","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues4
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"18723842","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

249697

PDB entries from 2026-02-25

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