The Plant-Specific Actin Binding Protein SCAB1 Stabilizes Actin Filaments and Regulates Stomatal Movement in Arabidopsis
نویسندگان
چکیده
منابع مشابه
The plant-specific actin binding protein SCAB1 stabilizes actin filaments and regulates stomatal movement in Arabidopsis.
Microfilament dynamics play a critical role in regulating stomatal movement; however, the molecular mechanism underlying this process is not well understood. We report here the identification and characterization of STOMATAL CLOSURE-RELATED ACTIN BINDING PROTEIN1 (SCAB1), an Arabidopsis thaliana actin binding protein. Plants lacking SCAB1 were hypersensitive to drought stress and exhibited redu...
متن کاملPlant actin-binding protein SCAB1 is dimeric actin cross-linker with atypical pleckstrin homology domain.
SCAB1 is a novel plant-specific actin-binding protein that binds, bundles, and stabilizes actin filaments and regulates stomatal movement. Here, we dissected the structure and function of SCAB1 by structural and biochemical approaches. We show that SCAB1 is composed of an actin-binding domain, two coiled-coil (CC) domains, and a fused immunoglobulin and pleckstrin homology (Ig-PH) domain. We de...
متن کاملThe plant actin-binding protein SCAB1 is a dimeric actin crosslinker with an atypical Pleckstrin homology domain*
SCAB1 is a novel plant-specific actin-binding protein that binds, bundles and stabilizes actin filaments and regulates stomatal movement. Here we dissect the structure and function of SCAB1 by structural and biochemical approaches. We show that SCAB1 is composed of an actin-binding domain, two coiled-coil (CC) domains and a fused immunoglobulin and Pleckstrin homology (Ig-PH) domain. We have de...
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Purified muscle actin and mixtures of actin and actin-binding protein were examined in the transmission electron microscope after fixation, critical point drying, and rotary shadowing. The three-dimensional structure of the protein assemblies was analyzed by a computer-assisted graphic analysis applicable to generalized filament networks. This analysis yielded information concerning the frequen...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2011
ISSN: 1532-298X,1040-4651
DOI: 10.1105/tpc.111.086546