alpha-actinin-1; alpha-actinin cytoskeletal isoform; non-muscle alpha-actinin-1; F-actin cross-linking protein (ACTN1)
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Function
- F-actin cross-linking protein thought to anchor actin to a variety of intracellular structures
- ACTN1 is a bundling protein
Structure
- homodimer; antiparallel. interacts with DDN, MYOZ2, PDLIM2, TTID & LPP
- belongs to the alpha-actinin family
- contains 1 actin-binding domain
- contains 2 CH (calponin-homology) domains
- contains 2 EF-hand domains
- contains 4 spectrin repeats
Compartment
- cytoplasm, cytoskeleton
- cytoplasm, myofibril, sarcomere, Z-disk
- colocalizes with MYOZ2 & PPP3CA at the Z-line of heart & skeletal muscle