Application

Research CategorySignaling

Western Blotting Analysis: 0.5 µg/mL from a representative lot detected synaptotagmin-like protein 4 (SYTL4) in 10 µg of human adrenal gland tissue lysate.

Detect SYTL4 using this mouse monoclonal Anti-Synaptotagmin-like Protein 4 (SYTL4) Antibody, clone 7D2.2, Cat. No. MABS1713, validated for use in Western Blotting.

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General description

Synaptotagmin-like protein 4 (UniProt Q96C24; also known as Exophilin-2, Granuphilin) is encoded by the SYTL4 (also known as SLP4) gene (Gene ID 94121) in human. SYLT4 belongs to the synaptotagmin-like protein family, which contains an N-terminal RabBD (Rab-binding) domain and two C-terminal C2 domains. The characteristic feature of this family is the N-terminal domain, which is not found in other C-type tandem C2 proteins. SYLT4 is detected close to the plasma membrane and on secretory granules. Interacts with vesicles containing negatively charged phospholipids in a Ca2+-independent manner. It can bind to both the GTP- and GDP-bound forms of Rab27A and inhibits a specific GTP/GDP exchange cycle required for dense-core vesicle exocytosis. It is the first regulatory in the exocytosis pathway that functions by directly connecting Rab and SNARE. It modulates exocytosis of dense-core granules and secretion of hormones in the pancreas and the pituitary. It is not only essential for the docking of insulin granules, but also simultaneously imposes a fusion constraint on them through an interaction with syntaxin-1alpha fusion machinery.

Immunogen

GST-tagged recombinant human synaptotagmin-like protein 4 (SYTL4) internal fragment.

Other Notes

Concentration: Please refer to lot specific datasheet.

Physical form

Purified mouse IgG2aκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Protein G purified.

Format: Purified

Quality

Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected synaptotagmin-like protein 4 (SYTL4) in 10 µg of HeLa cell lysate.

Specificity

Clone 7D2.2 epitope resides within an internal region mostly missing in human spliced isoform 2. Reactivity toward isoform 2 has not been confirmed.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Target description

~80 kDa observed. 70.02 kDa (human isoform 1) calculated. Uncharacterized bands may be observed in some lysate(s).