background:
MICAL1 is a 1,067 amino acid protein that localizes to both the cytoplasm and the cytoskeleton and contains one LIM zinc-binding domain and one calponin-homology domain. Expressed in kidney, thymus, spleen, lung and testis, MICAL1 interacts with the SH3 domain of Cas-L and, via this interaction, is thought to function as a cytoskeletal regulator that connects Cas-L to intermediate filaments. MICAL1 also interacts with Rab 1B, plexin-A3 and Vimentin, further regulating cytoskeletal events and possibly playing a role in axonal repulsion. Three isoforms of MICAL1 exist due to alternative splicing events.
Function:
Monooxygenase that promotes depolymerization of F-actin by mediating oxidation of specific methionine residues on actin. Acts by modifying actin subunits through the addition of oxygen to form methionine-sulfoxide, leading to promote actin filament severing and prevent repolymerization (Probable). Acts as a cytoskeletal regulator that connects NEDD9 to intermediate filaments. Also acts as a negative regulator of apoptosis via its interaction with STK38 and STK38L; acts by antagonizing STK38 and STK38L activation by MST1/STK4.
Subunit:
Interacts with STK38 and STK38L (By similarity). Associates with the SH3 domain of NEDD9. Interacts with VIM and PLXNA3. Interacts with RAB1B.
Subcellular Location:
Cytoplasm. Cytoplasm, cytoskeleton.
Tissue Specificity:
Expressed in the thymus, lung, spleen, kidney, testis and hematopoietic cells.
Similarity:
Belongs to the Mical family.
Contains 1 CH (calponin-homology) domain.
Contains 1 LIM zinc-binding domain.
Database links:
UniProtKB/Swiss-Prot: Q8TDZ2.2
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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