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P0A2T7

- CRP_ENTAE

UniProt

P0A2T7 - CRP_ENTAE

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Protein

cAMP-activated global transcriptional regulator CRP

Gene

crp

Organism
Enterobacter aerogenes (Aerobacter aerogenes)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at protein leveli

Functioni

A global transcription regulator. Complexes with cyclic AMP (cAMP) which allosterically activates DNA binding to regulate transcription. Induces a severe bend in DNA. Acts as a negative regulator of its own synthesis as well as for adenylate cyclase (cyaA), which generates cAMP. Plays a major role in carbon catabolite repression (CCR) (By similarity).By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sitei97 – 971Activating region 2 (AR2); probably contacts the N-terminus of RpoABy similarity
Sitei102 – 1021Activating region 2 (AR2); probably contacts the N-terminus of RpoABy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi57 – 637cAMP 1By similarity
Nucleotide bindingi72 – 743cAMP 1By similarity
Nucleotide bindingi83 – 842cAMP 1By similarity
Nucleotide bindingi128 – 1292cAMP 1By similarity
Nucleotide bindingi136 – 1372cAMP 2By similarity
Nucleotide bindingi171 – 18111cAMP 2By similarityAdd
BLAST
DNA bindingi180 – 1867H-T-H motifPROSITE-ProRule annotation

GO - Molecular functioni

  1. cAMP binding Source: UniProtKB-KW
  2. DNA binding Source: UniProtKB-KW
  3. sequence-specific DNA binding transcription factor activity Source: InterPro

GO - Biological processi

  1. transcription, DNA-templated Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Activator

Keywords - Biological processi

Transcription, Transcription regulation

Keywords - Ligandi

cAMP, cAMP-binding, DNA-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
cAMP-activated global transcriptional regulator CRP
Alternative name(s):
Catabolite activator protein
Short name:
CAP
Catabolite gene activator
cAMP receptor protein
Short name:
CRP
cAMP regulatory protein
Gene namesi
Name:crp
Synonyms:cap
OrganismiEnterobacter aerogenes (Aerobacter aerogenes)
Taxonomic identifieri548 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEnterobacter

Subcellular locationi

GO - Cellular componenti

  1. intracellular Source: InterPro
Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 210210cAMP-activated global transcriptional regulator CRPPRO_0000100148Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei101 – 1011N6-acetyllysineBy similarity

Keywords - PTMi

Acetylation

Proteomic databases

PRIDEiP0A2T7.

Interactioni

Subunit structurei

Homodimer, which upon binding cAMP is able to bind DNA. Binds the N- and C-terminus of RNA polymerase subunit RpoA and sigma-70 (RpoD) (By similarity).By similarity

Protein-protein interaction databases

MINTiMINT-92138.

Structurei

3D structure databases

ProteinModelPortaliP0A2T7.
SMRiP0A2T7. Positions 2-208.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini138 – 21073HTH crp-typePROSITE-ProRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni20 – 223Activating region 2 (AR2); probably contacts the N-terminus of RpoABy similarity
Regioni53 – 597Activating region 3 (AR3); probably contacts sigma-70 (RpoD)By similarity
Regioni154 – 16310Activating region 1 (AR1); probably contacts the C-terminus of RpoABy similarity

Domaini

The N-terminal domain binds cAMP and is responsible for homodimerization, while the C-terminal domain binds DNA when cAMP is bound.By similarity

Sequence similaritiesi

Contains 1 cyclic nucleotide-binding domain.PROSITE-ProRule annotation
Contains 1 HTH crp-type DNA-binding domain.PROSITE-ProRule annotation

Family and domain databases

Gene3Di1.10.10.10. 1 hit.
2.60.120.10. 1 hit.
InterProiIPR018490. cNMP-bd-like.
IPR018488. cNMP-bd_CS.
IPR000595. cNMP-bd_dom.
IPR012318. HTH_CRP_2.
IPR014710. RmlC-like_jellyroll.
IPR001808. Tscrpt_reg_HTH_Crp.
IPR018335. Tscrpt_reg_HTH_Crp-type_CS.
IPR011991. WHTH_DNA-bd_dom.
[Graphical view]
PfamiPF00027. cNMP_binding. 1 hit.
PF00325. Crp. 1 hit.
[Graphical view]
PRINTSiPR00034. HTHCRP.
SMARTiSM00100. cNMP. 1 hit.
SM00419. HTH_CRP. 1 hit.
[Graphical view]
SUPFAMiSSF51206. SSF51206. 1 hit.
PROSITEiPS00888. CNMP_BINDING_1. 1 hit.
PS00889. CNMP_BINDING_2. 1 hit.
PS50042. CNMP_BINDING_3. 1 hit.
PS00042. HTH_CRP_1. 1 hit.
PS51063. HTH_CRP_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P0A2T7-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MVLGKPQTDP TLEWFLSHCH IHKYPSKSTL IHQGEKAETL YYIVKGSVAV
60 70 80 90 100
LIKDEEGKEM ILSYLNQGDF IGELGLFEEG QERSAWVRAK TACEVAEISY
110 120 130 140 150
KKFRQLIQVN PDILMRLSSQ MARRLQVTSE KVGNLAFLDV TGRIAQTLLN
160 170 180 190 200
LAKQPDAMTH PDGMQIKITR QEIGQIVGCS RETVGRILKM LEDQNLISAH
210
GKTIVVYGTR
Length:210
Mass (Da):23,656
Last modified:January 1, 1988 - v1
Checksum:iC54244E974D53A0F
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M68973 Genomic DNA. Translation: AAA25058.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M68973 Genomic DNA. Translation: AAA25058.1 .

3D structure databases

ProteinModelPortali P0A2T7.
SMRi P0A2T7. Positions 2-208.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

MINTi MINT-92138.

Proteomic databases

PRIDEi P0A2T7.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 1.10.10.10. 1 hit.
2.60.120.10. 1 hit.
InterProi IPR018490. cNMP-bd-like.
IPR018488. cNMP-bd_CS.
IPR000595. cNMP-bd_dom.
IPR012318. HTH_CRP_2.
IPR014710. RmlC-like_jellyroll.
IPR001808. Tscrpt_reg_HTH_Crp.
IPR018335. Tscrpt_reg_HTH_Crp-type_CS.
IPR011991. WHTH_DNA-bd_dom.
[Graphical view ]
Pfami PF00027. cNMP_binding. 1 hit.
PF00325. Crp. 1 hit.
[Graphical view ]
PRINTSi PR00034. HTHCRP.
SMARTi SM00100. cNMP. 1 hit.
SM00419. HTH_CRP. 1 hit.
[Graphical view ]
SUPFAMi SSF51206. SSF51206. 1 hit.
PROSITEi PS00888. CNMP_BINDING_1. 1 hit.
PS00889. CNMP_BINDING_2. 1 hit.
PS50042. CNMP_BINDING_3. 1 hit.
PS00042. HTH_CRP_1. 1 hit.
PS51063. HTH_CRP_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Klebsiella aerogenes catabolite gene activator protein and the gene encoding it (crp)."
    Osuna R., Bender R.A.
    J. Bacteriol. 173:6626-6631(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION IN TRANSCRIPTION, DNA-BINDING.
    Strain: KC1043.

Entry informationi

Entry nameiCRP_ENTAE
AccessioniPrimary (citable) accession number: P0A2T7
Secondary accession number(s): P06170, P29282
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 1, 1988
Last sequence update: January 1, 1988
Last modified: October 1, 2014
This is version 46 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3