SCAB-ABD is the actin-binding domain of plant-specific actin-binding proteins or SCABs. SCAB proteins bind, bundle and stabilise actin filaments and regulate stomatal movement. The Ig-PH fusion domain is at the C-terminus. The ABD is structurally independent from the first coiled-coil, CC1, domain which is also involved in binding; the CC1 is likely to function as a dimerisation module [1],

1: Plant actin-binding protein SCAB1 is dimeric actin cross-linker with atypical pleckstrin homology domain. Zhang W, Zhao Y, Guo Y, Ye K; J Biol Chem. 2012;287:11981-11990. PMID:22356912