ABLIM 1, ABLIM, abLIM-1, ABLIM-L, ABLIM-M, ABLIM-S, ABLIM1, ABLM1_HUMAN, Actin binding double zinc finger protein, Actin binding LIM protein 1, Actin binding LIM protein family member 1, Actin-binding double zinc finger protein, Actin-binding double zinc finger protein, Actin-binding LIM protein 1, Actin-binding LIM protein family member 1, DKFZp781D0148, FLJ14564, KIAA0059, LIM actin binding protein 1, LIMAB 1, LIMAB1, Limatin, RGD1565768, RP11-317F20.1.
The C. elegans protein Unc-115 mediates axon guidance by modulating the growth cone Actin cytoskeleton in response to signals received by growth cone receptors. The mammalian homolog of Unc-115 is the Actin-binding LIM protein family member 1 (ABLIM1, also designated Limatin). The ABLIM1 protein has an N-terminal domain that contains four double zinc finger motifs, which conform to the LIM motif consensus sequence. ABLIM1 binds to F-Actin through a dematin-like domain and is expressed in retina, brain and muscle tissue. There are four known isoforms of ABLIM1. The gene encoding ABLIM1 maps to a region of chromosome 10 associated with frequent loss of heterozygosity in human tumors, thus identifying ABLIM1 as a candidate tumor suppressor gene. ABLIM2 and ABLIM3 show highest expression in muscle and neuronal tissues, bind to F-Actin, and are localized on stress fibers. They also have been shown to enhance STARS (striated muscle activator of Rho signaling) dependent activation of serum-response factor (SRF), thereby modulating transcription.
