SYPL2 (Synaptophysin-like Protein 2, MG29)

SYPL2, also known as Mitsugumin 29, was initially identified as a transmembrane protein from the triad junction in skeletal muscle that had significant homology with members of the synaptophysin family. SYPL2 is thought to participate in the excitation-contraction coupling process of skeletal muscle as SYPL2-null mice showed reduced muscle contractile force and altered triad junction structure and increased susceptibility to fatigue of the skeletal muscle. SYPL2 plays a critical role in muscle Ca2+ signaling by regulating the process of store-operated Ca2+ entry and interacts with ryanodine receptor (RyR), thereby influencing intracellular Ca2+ homeostasis through changes in the RyR/Ca2+ release function. Co-expression of SYPL2 and RyR in cultured cells leads to apoptotic cell death resulting from the depletion of Ca2+ from the intracellular stores. At least two isoforms of SYPL2 are known to exist. SYPL2 antibody will not cross-react with SYPL1.\n\nApplications:\nSuitable for use in ELISA, Western Blot, Immunofluorescence and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1ug/ml\nImmunohistochemistry (Formalin fixed paraffin embedded): 2.5ug/ml\nImmunofluorescence: 20ug/ml\nOptimal dilutions to be determined by the researcher.\n\nPositive Control:\nHuman Spleen Tissue Lysate\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

146475

Size

100ug

Applications

ELISA, IF, IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a liquid in PBS, 0.02% sodium azide.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Takeshima H, Simuta M, Komazaki S, et al. Mitsugumin29, a novel synaptophysin family member from the triad junction in skeletal muscle. Biochem. J. 1998; 331:317-22. 2. Nishi M, Komazaki S, Kurebayashi Y, et al. Abnormal features in skeletal muscle from mice lacking mitsugumin29. J. Cell Biol. 1999; 147:1473-80. 3. Nagaraj RY, Nosek CM, Brotto MA, et al. Increased susceptibility to fatigue of slow- and fast-twitch muscles from mice lacking the MG29 gene. Physiol. Genom. 2000; 4:43-9. 4. Pan Z, Hirata D, Nagaraj RY, et al. Dysfunction of store-operated calcium channel in muscle cells lacking mg29. Nat. Cell Biol. 2002; 4:379-83.

Additional Info

Recognizes human SYPL. Species Crossreactivity: mouse and rat.