J Cell Biochem 2003,
PMID: 12938160
Nauert, J Brian; Rigas, Johanna D; Lester, Linda B
IQGAP1, is a recently discovered scaffold protein proposed to regulate membrane cytoskeleton events through protein-protein interactions with F-actin, E-cadherin, beta-catenin, and CLIP170. The binding of IQGAP1 to its partners is regulated by calcium/calmodulin (Ca(++)/CaM) and the small molecular weight guanine nucleotide triphosphatases (GTPases), Cdc42, and Rac1. Here we identify a novel IQGAP1 scaffolding function by isolating the cyclic AMP dependent kinase (PKA) with IQGAP1. IQGAP1 was co-purified with PKA using 5'-cyclic AMP (cAMP) affinity chromatography and PKA activity was co-immunoprecipitated with IQGAP1 using an anti-IQGAP1 antibody. The association of IQGAP1 with PKA was shown to occur through a direct interaction between A kinase anchoring protein 79 (AKAP79) and the carboxyl-terminal domain of IQGAP1. This suggests that cAMP/PKA may be coupled with Ca(++)/CaM and GTPases through an IQGAP1/AKAP79 complex.
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Text Mining Data
IQGAP1 → calcium/calmodulin: "
The binding of
IQGAP1 to its partners is
regulated by
calcium/calmodulin ( Ca ( ++ ) /CaM ) and the small molecular weight guanine nucleotide triphosphatases ( GTPases ), Cdc42, and Rac1
"
Manually curated Databases
-
IRef Biogrid Interaction:
IQGAP1
—
PRKACA
(physical association, affinity chromatography technology)
-
IRef Biogrid Interaction:
IQGAP1
—
PRKACA
(association, biochemical)
-
IRef Biogrid Interaction:
IQGAP1
—
AKAP5
(direct interaction, pull down)
-
IRef Hprd Interaction:
IQGAP1
—
PRKACA
(in vitro)
-
IRef Hprd Interaction:
IQGAP1
—
PRKACA
(in vivo)
-
IRef Innatedb Interaction:
IQGAP1
—
AKAP5
(unknown, -)
-
Reactome Reaction:
PRKAR2A
→
IQGAP1
(indirect_complex)
-
Reactome Reaction:
PRKAR2B
→
PRKACB
(reaction)
-
Reactome Reaction:
PRKAR1A
→
PRKACA
(reaction)
-
Reactome Reaction:
PRKAR1A
→
PRKACG
(reaction)
-
Reactome Reaction:
PRKAR1A
→
IQGAP1
(indirect_complex)
-
Reactome Reaction:
PRKAR1A
→
AKAP5
(indirect_complex)
-
Reactome Reaction:
PRKAR1B
→
IQGAP1
(indirect_complex)
-
Reactome Reaction:
PRKACB
→
AKAP5
(reaction)
-
Reactome Reaction:
PRKAR1B
→
PRKACA
(reaction)
-
Reactome Reaction:
PRKAR2B
→
PRKACA
(reaction)
-
Reactome Reaction:
PRKAR2A
→
PRKACA
(reaction)
-
Reactome Reaction:
PRKAR1B
→
PRKACB
(reaction)
-
Reactome Reaction:
PRKACG
→
IQGAP1
(reaction)
-
Reactome Reaction:
PRKAR2A
→
AKAP5
(indirect_complex)
-
Reactome Reaction:
PRKACG
→
AKAP5
(reaction)
-
Reactome Reaction:
PRKAR1B
→
PRKACG
(reaction)
-
Reactome Reaction:
PRKACA
→
IQGAP1
(reaction)
-
Reactome Reaction:
PRKAR1B
→
AKAP5
(indirect_complex)
-
Reactome Reaction:
PRKAR2B
→
AKAP5
(indirect_complex)
-
Reactome Reaction:
PRKAR2A
→
PRKACB
(reaction)
-
Reactome Reaction:
PRKAR2B
→
IQGAP1
(indirect_complex)
-
Reactome Reaction:
PRKAR2A
→
PRKACG
(reaction)
-
Reactome Reaction:
AKAP5
→
IQGAP1
(direct_complex)
-
Reactome Reaction:
PRKACB
→
IQGAP1
(reaction)
-
Reactome Reaction:
PRKACA
→
AKAP5
(reaction)
-
Reactome Reaction:
PRKAR2B
→
PRKACG
(reaction)
-
Reactome Reaction:
PRKAR1A
→
PRKACB
(reaction)
In total, 27 gene pairs are associated to this article in curated databases