Catalog # DX4525

phospho-mDia3 (Ser-196) Peptide

Blocking Peptide

Application / Dilution
ELISA50 ng/well

Size 50 μg



Formins include several families of proteins that regulate actin cytoskeletal dynamics via two conserved formin homology domains, FH1 and FH2. Through cooperation of FH1 and FH2, formins construct actin-based structures comprising linear, unbranched filaments that are used in stress fibers, actin cables, microspikes, and contractile rings. A subgroup of the formins is the diaphanous (Dia) family, which includes mDia1 (Diap1), mDia2 (Diap3), and mDia3 (Diap2). mDia3 is activated by Cdc42 and regulates the attachment of microtubules to the kinetochore during mitosis. Aurora B kinase phosphorylates Ser-196 and Thr-882 in vitro, and phosphorylation of Ser-196 increases during mitosis in vivo. A multisite mutant mDia3 with nonphosphorylatable T66A, S196A, S880A and T882A leads to misalignment of chromosomes at the metaphase plate. Thus, phosphorylation may be an important regulator of mDia3 activity during mitosis.



Cheng, L. et al. (2011) Developmental Cell 20:342.
Lammers, M. et al. (2008) J Biol Chem. 283(50):35236.
Yasuda, S. et al. (2004) Nature. 428(6984):767.

Phospho-mDia3 (Ser-196) synthetic peptide corresponding to amino acid residues surrounding Ser-196 in human mDia3 (Diap2). This peptide sequence is identical in rat and mouse mDia3, and the site is well conserved in human mDia1/Diap1 (Ser-171) and mDia2/Diap3 (Ser-202).

*For more information, see UniProt Accession Q17R91
Blocking Peptide is supplied in 50µl phosphate-buffered saline and 0.05% sodium azide.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

The peptide is specifically recognized by anti-mDia3 (Ser-196) phospho-specific antibody (DP4521) in ELISA, and has been shown to block the reactivity of DP4521 during Western blot. In addition, the peptide is recommended for use in blocking DP4521 reactivity in immunocytochemistry.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains: