Synaptopodin Antibody from MyBioSource.com

Function: Has an actin-binding and actin-bundling activity. Can induce the formation of F-actin networks in an isoform-specific manner (PubMed:24005909, PubMed:23225103). At the sarcomeric Z lines is proposed to act as adapter protein that links nascent myofibers to the sarcolemma via ZYX and may play a role in early assembly and stabilization of the Z lines. Involved in autophagosome formation. May play a role in chaperone-assisted selective autophagy (CASA) involved in Z lines maintenance in striated muscle under mechanical tension; may link the client-processing CASA chaperone machinery to a membrane-tethering and fusion complex providing autophagosome membranes (By similarity). Involved in regulation of cell migration (PubMed:22915763, PubMed:25883213). May be a tumor suppressor (PubMed:16885336).
Subunit Structure: May self-associate in muscle cells under oxidative stress. Binds F-actin (PubMed:23225103). Interacts with ACTN2; ACTN2 is proposed to anchor SYOP2 at Z lines in mature myocytes (PubMed:20554076). Interacts with AKAP6, PPP3CA and CAMK2A. Interacts (phosphorylated form) with YWHAB; YWHAB competes with ACTN2 for interaction with SYNPO2. Interacts with KPNA2; mediating nuclear import of SYNOP2; dependent on interaction with YWHAB (By similarity). Interacts with IPO13; may be implicated in SYNOP2 nuclear import (PubMed:17828378). Interacts with ZYX, FLNC, ILK (PubMed:16885336, PubMed:20554076, PubMed:21643011). Interacts with BAG3 (via WW 1 domain). May associate with the CASA complex consisting of HSPA8, HSPB8 and BAG3. Interacts with VPS18 (PubMed:23434281).
Post-translational Modifications: Phosphorylated by PKA, and by CaMK2 at multiple sites. Dephosphorylated by calcineurin; abrogating interaction with YWHAB and impairing nuclear import (By similarity). Phosphorylated by ILK.
Similarity: The PPPY motif interacts with the WW domain 1 of BAG3. Belongs to the synaptopodin family