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- Catabolite_activator_protein abstract "Catabolite Activator Protein (CAP; also known as cAMP receptor protein, CRP) is a transcriptional activator that exists as a homodimer in solution, with each subunit comprising a ligand-binding domain at the N-terminus (CAPN, residues 1-138), which is also responsible for the dimerization of the protein, and a DNA-binding domain at the C-terminus (DBD, residues 139-209). Two cAMP (cyclic AMP) molecules bind dimeric CAP with negative cooperativity and function as allosteric effectors by increasing the protein's affinity for DNA. Cytosolic cAMP levels rise when the amount of glucose transported into the cell is low. CAP has a characteristic helix-turn-helix structure that allows it to bind to successive major grooves on DNA. The two helices are reinforcing each, causing a 43° turn in the structure, so overall causing a 94° degree turn in the DNA.This opens the DNA molecule up, allowing RNA polymerase to bind and transcribe the genes involved in lactose catabolism. cAMP-CAP is required for transcription of the lac operon. This requirement reflects the greater simplicity with which glucose may be metabolized in comparison to lactose. The cell "prefers" glucose, and, if it is available, the lac operon is not activated, even when lactose is present. This is an effective way of integrating the two different signals.CAP is responsible for catabolite repression, a well-known example of a modulon and also plays a role in the MaI regulon.".
- Catabolite_activator_protein wikiPageID "3113700".
- Catabolite_activator_protein wikiPageLength "3021".
- Catabolite_activator_protein wikiPageOutDegree "25".
- Catabolite_activator_protein wikiPageRevisionID "678173804".
- Catabolite_activator_protein wikiPageWikiLink Activator_(genetics).
- Catabolite_activator_protein wikiPageWikiLink Affinity_(pharmacology).
- Catabolite_activator_protein wikiPageWikiLink Allosteric.
- Catabolite_activator_protein wikiPageWikiLink Allosteric_regulation.
- Catabolite_activator_protein wikiPageWikiLink C-terminus.
- Catabolite_activator_protein wikiPageWikiLink CAMP_receptor_protein.
- Catabolite_activator_protein wikiPageWikiLink Catabolism.
- Catabolite_activator_protein wikiPageWikiLink Catabolite_repression.
- Catabolite_activator_protein wikiPageWikiLink Category:DNA.
- Catabolite_activator_protein wikiPageWikiLink Cooperativity.
- Catabolite_activator_protein wikiPageWikiLink Cyclic_AMP.
- Catabolite_activator_protein wikiPageWikiLink Cyclic_adenosine_monophosphate.
- Catabolite_activator_protein wikiPageWikiLink Cytosol.
- Catabolite_activator_protein wikiPageWikiLink DNA.
- Catabolite_activator_protein wikiPageWikiLink DNA-binding_domain.
- Catabolite_activator_protein wikiPageWikiLink Glucose.
- Catabolite_activator_protein wikiPageWikiLink Helix-turn-helix.
- Catabolite_activator_protein wikiPageWikiLink Homodimer.
- Catabolite_activator_protein wikiPageWikiLink Lac_operon.
- Catabolite_activator_protein wikiPageWikiLink Ligand_(biochemistry).
- Catabolite_activator_protein wikiPageWikiLink MaI_regulon.
- Catabolite_activator_protein wikiPageWikiLink Major_groove.
- Catabolite_activator_protein wikiPageWikiLink Modulon.
- Catabolite_activator_protein wikiPageWikiLink N-terminus.
- Catabolite_activator_protein wikiPageWikiLink Nucleic_acid_double_helix.
- Catabolite_activator_protein wikiPageWikiLink Protein_dimer.
- Catabolite_activator_protein wikiPageWikiLink RNA_polymerase.
- Catabolite_activator_protein wikiPageWikiLink Transcription_(genetics).
- Catabolite_activator_protein wikiPageWikiLink Transcriptional_activator.
- Catabolite_activator_protein wikiPageWikiLink File:48-CataboliteActivatorProtein-1cgp.tif.
- Catabolite_activator_protein wikiPageWikiLinkText "CAP (catabolite gene activator protein)".
- Catabolite_activator_protein wikiPageWikiLinkText "CAP".
- Catabolite_activator_protein wikiPageWikiLinkText "CRP".
- Catabolite_activator_protein wikiPageWikiLinkText "Catabolite activator protein".
- Catabolite_activator_protein wikiPageWikiLinkText "catabolite activator protein".
- Catabolite_activator_protein hasPhotoCollection Catabolite_activator_protein.
- Catabolite_activator_protein wikiPageUsesTemplate Template:Cell-biology-stub.
- Catabolite_activator_protein wikiPageUsesTemplate Template:MeshName.
- Catabolite_activator_protein wikiPageUsesTemplate Template:Reflist.
- Catabolite_activator_protein wikiPageUsesTemplate Template:Transcription_factors.
- Catabolite_activator_protein subject Category:DNA.
- Catabolite_activator_protein hypernym Activator.
- Catabolite_activator_protein type ChemicalSubstance.
- Catabolite_activator_protein comment "Catabolite Activator Protein (CAP; also known as cAMP receptor protein, CRP) is a transcriptional activator that exists as a homodimer in solution, with each subunit comprising a ligand-binding domain at the N-terminus (CAPN, residues 1-138), which is also responsible for the dimerization of the protein, and a DNA-binding domain at the C-terminus (DBD, residues 139-209).".
- Catabolite_activator_protein label "Catabolite activator protein".
- Catabolite_activator_protein sameAs Proteína_activadora_por_catabolitos.
- Catabolite_activator_protein sameAs Proteína_activadora_por_catabolito.
- Catabolite_activator_protein sameAs m.08s7yg.
- Catabolite_activator_protein sameAs Katabolit_Aktivatör_Protein.
- Catabolite_activator_protein sameAs Q1707046.
- Catabolite_activator_protein sameAs Q1707046.
- Catabolite_activator_protein sameAs 降解物激活蛋白.
- Catabolite_activator_protein wasDerivedFrom Catabolite_activator_protein?oldid=678173804.
- Catabolite_activator_protein isPrimaryTopicOf Catabolite_activator_protein.