Alpha-actinin-4 is a protein that in humans is encoded by the ACTN4 gene. [5]
Alpha actinins belong to the spectrin gene superfamily which represents a diverse group of cytoskeletal proteins, including the alpha and beta spectrins and dystrophins. Alpha actinin is an actin-binding protein with multiple roles in different cell types. In nonmuscle cells, the cytoskeletal isoform is found along microfilament bundles and adherens-type junctions, where it is involved in binding actin to the membrane. In contrast, skeletal, cardiac, and smooth muscle isoforms are localized to the Z-disc and analogous dense bodies, where they help anchor the myofibrillar actin filaments. This gene encodes a nonmuscle, alpha actinin isoform which is concentrated in the cytoplasm, and thought to be involved in metastatic processes. Mutations in this gene have been associated with focal and segmental glomerulosclerosis. [5]
Alpha-actinin-4 has been shown to interact with PDLIM1, [6] [7] Sodium-hydrogen exchange regulatory cofactor 2, [8] Collagen, type XVII, alpha 1, [9] CAMK2A, [10] CAMK2B, [10] MAGI1 [11] and TRIM3. [12]
Collagen XVII, previously called BP180, is a transmembrane protein which plays a critical role in maintaining the linkage between the intracellular and the extracellular structural elements involved in epidermal adhesion, identified by Diaz and colleagues in 1990.
Sodium-hydrogen antiporter 3 regulator 1 is a regulator of Sodium-hydrogen antiporter 3. It is encoded by the gene SLC9A3R1. It is also known as ERM Binding Protein 50 (EBP50) or Na+/H+ Exchanger Regulatory Factor (NHERF1). It is believed to interact via long-range allostery, involving significant protein dynamics.
AP-2 complex subunit alpha-1 is a protein that in humans is encoded by the AP2A1 gene.
Sodium-hydrogen exchange regulatory cofactor NHE-RF2 (NHERF-2) also known as tyrosine kinase activator protein 1 (TKA-1) or SRY-interacting protein 1 (SIP-1) is a protein that in humans is encoded by the SLC9A3R2 gene.
Disintegrin and metalloproteinase domain-containing protein 12 is an enzyme that in humans is encoded by the ADAM12 gene. ADAM12 has two splice variants: ADAM12-L, the long form, has a transmembrane region and ADAM12-S, a shorter variant, is soluble and lacks the transmembrane and cytoplasmic domains.
Alpha-actinin-1 is a protein that in humans is encoded by the ACTN1 gene.
Alpha-actinin-3, also known as alpha-actinin skeletal muscle isoform 3 or F-actin cross-linking protein, is a protein that in humans is encoded by the ACTN3 gene located on chromosome 11. All people have two copies (alleles) of this gene.
Alpha-adducin is a protein that in humans is encoded by the ADD1 gene.
Alpha-actinin-2 is a protein which in humans is encoded by the ACTN2 gene. This gene encodes an alpha-actinin isoform that is expressed in both skeletal and cardiac muscles and functions to anchor myofibrillar actin thin filaments and titin to Z-discs.
Cyclin-dependent kinase 5 activator 1 is an enzyme that in humans is encoded by the CDK5R1 gene.
Zyxin is a protein that in humans is encoded by the ZYX gene.
Beta-adducin is a protein that in humans is encoded by the ADD2 gene.
Interleukin 13 receptor, alpha 1, also known as IL13RA1 and CD213A1, is a human gene.
F-actin-capping protein subunit alpha-1 is a protein that in humans is encoded by the CAPZA1 gene.
PDZ and LIM domain protein 1 is a protein that in humans is encoded by the PDLIM1 gene.
Guanine nucleotide-binding protein G(T) subunit gamma-T1 is a protein that in humans is encoded by the GNGT1 gene.
Alpha-parvin is a protein that in humans is encoded by the PARVA gene.
Neurabin-2 is a protein that in humans is encoded by the PPP1R9B gene.
Four and a half LIM domains protein 3 is a protein that in humans is encoded by the FHL3 gene.
Guanine nucleotide-binding protein subunit alpha-11 is a protein that in humans is encoded by the GNA11 gene. Together with GNAQ, it functions as a Gq alpha subunit.