Stable Identifier
Reaction [binding]
Homo sapiens
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IQGAP proteins IQGAP1, IQGAP2 and IQGAP3 possess IQ repeats (isoleucine- and glutamine-rich motifs) that bind CALM1 (calmodulin) in the presence of calcium ions (Atcheson et al. 2011, Andrews et al. 2012). IQGAP1 also binds the calmodulin-related proteins myosin essential light chain (MLCS1A) and S100B (Atcheson et al. 2011). Calmodulin binding inhibits the association of IQGAPs with the F-actin (Bashour et al. 1997, Pelikan-Conchaudron et al. 2011).

Literature References
PubMed ID Title Journal Year
21730051 The IQGAP1 protein is a calmodulin-regulated barbed end capper of actin filaments: possible implications in its function in cell migration

Pelikan-Conchaudron, A, Le Clainche, C, Didry, D, Carlier, MF

J. Biol. Chem. 2011
9199170 IQGAP1, a Rac- and Cdc42-binding protein, directly binds and cross-links microfilaments

Bashour, AM, Fullerton, AT, Hart, MJ, Bloom, GS

J. Cell Biol. 1997
22944912 A calcium-dependent interaction between calmodulin and the calponin homology domain of human IQGAP1

Andrews, WJ, Bradley, CA, Hamilton, E, Daly, C, Mallon, T, Timson, DJ

Mol. Cell. Biochem. 2012
21299499 IQ-motif selectivity in human IQGAP2 and IQGAP3: binding of calmodulin and myosin essential light chain

Atcheson, E, Hamilton, E, Pathmanathan, S, Greer, B, Harriott, P, Timson, DJ

Biosci. Rep. 2011
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