PIK3R4 Antibody Cat. No.: 7949

PIK3R4 Antibody

Immunohistochemistry of PIK3R4 in human tonsil tissue Immunofluorescence of PIK3R4 in human tonsil tissue with PIK3R4 antibody at 5 μg/ml. with PIK3R4 antibody at 20 μg/ml.

Specifications

HOST SPECIES: Rabbit

SPECIES REACTIVITY: Human, Mouse, Rat

PIK3R4 antibody was raised against a 19 amino acid peptide near the carboxy terminus of human PIK3R4. IMMUNOGEN:

The immunogen is located within amino acids 1290 - 1340 of PIK3R4.

TESTED APPLICATIONS: ELISA, IF, IHC-P, WB

October 1, 2021 1 https://www.prosci-inc.com/pik3r4-antibody-7949.html PIK3R4 antibody can be used for detection of PIK3R4 by Western blot at 1 - 2 μg/ml. Antibody can also be used for Immunohistochemistry starting at 5 μg/mL. For immunofluorescence start at 20 μg/mL. APPLICATIONS: Antibody validated: Western Blot in human samples; Immunohistochemistry in human samples and Immunofluorescence in human samples. All other applications and species not yet tested.

SPECIFICITY: PIK3R4 antibody is human, mouse and rat reactive.

POSITIVE CONTROL: 1) Cat. No. 1315 - Human Tonsil Tissue Lysate

Predicted: 149 kDa PREDICTED MOLECULAR WEIGHT: Observed: 140 kDa

Properties

PURIFICATION: PIK3R4 antibody is affinity chromatography purified via peptide column.

CLONALITY: Polyclonal

ISOTYPE: IgG

CONJUGATE: Unconjugated

PHYSICAL STATE: Liquid

BUFFER: PIK3R4 antibody is supplied in PBS containing 0.02% sodium azide.

CONCENTRATION: 1 mg/mL

PIK3R4 antibody can be stored at 4˚C for three months and -20˚C, stable for up to one STORAGE CONDITIONS: year.

Additional Info

OFFICIAL SYMBOL: PIK3R4

Phosphoinositide-3- regulatory subunit 4, p150, Phosphoinositide 3-kinase adaptor ALTERNATE NAMES: protein, PI3-kinase p150 subunit, PI3-kinase regulatory subunit 4, VPS15

ACCESSION NO.: NP_055417

PROTEIN GI NO.: 23943912

GENE ID: 30849

USER NOTE: Optimal dilutions for each application to be determined by the researcher.

Background and References

October 1, 2021 2 https://www.prosci-inc.com/pik3r4-antibody-7949.html PIK3R4 (phosphoinositide-3-kinase regulatory subunit 4, also known as VPS15) is a 150kD adaptor protein that enhances the lipid kinase activity of PIK3 complexes and may be involved in regulating membrane trafficking late in the endocytic pathway and BACKGROUND: (1,2). PIK3R4 is ubiquitously expressed and contains 7 WD repeats, 3 HEAT repeats and 1 (1). PIK3R4 is crucial for VPS34 function and is necessary for autophagosome formation in multicellular animals and reveal an important role of VPS15 in cellular protection against ubiquitin-positive protein aggregates (3-5).

1) Herman PK, Stack JH, and Emr SD. A genetic and structural analysis of the yeast Vps15 REFERENCES: protein kinase: evidence for a direct role of Vps15p in vacuolar protein delivery. EMBO J. 1991; 10:4049-60.

2) Stasyk OV, van der Klei IJ, Bellu AR, et al. A Pichia pastoris VPS15 homologue is required in selective peroxisome autophagy. Curr. Genet. 1999; 36:262-9.

3) Kihara A, Noda T, Ishihara N, et al. Two distinct Vps34 phosphatidylinositol 3-kinase complexes function in autophagy and carboxypeptidase Y sorting in Saccharomyces cerevisiae. J. Cell Biol. 2001; 152:519-30.

4) Stack JH, DeWald DB, Takegawa K, et al. Vesicle-mediated protein transport: regulatory interactions between the Vps15 protein kinase and the Vps34 PtdIns 3-kinase essential for protein sorting to the vacuole in yeast. J. Cell Biol. 1995; 129:321-34.

ANTIBODIES FOR RESEARCH USE ONLY.

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