Rb2283-150114-WS

A synthetic peptide from aa region 350-400 of human WIPI1 conjugated to blue carrier protein was used as the antigen. The peptide shares 91% identity with mouse sequence.

WIPI1_HUMAN
WIPI1_MOUSE

WD repeat domain phosphoinositide-interacting protein 1, WIPI-1, Atg18 protein homolog, WD40 repeat protein interacting with phosphoinositides of 49 kDa, WIPI49

Function: Plays an important role in autophagy and in particular starvation- and calcium-mediated autophagy, as well as in mitophagy. Functions upstream of the ATG12-ATG5-ATG16L1 complex and LC3, and downstream of the ULK1 and PI3-kinase complexes. Involved in xenophagy of Staphylococcus aureus. Invading S.aureus cells become entrapped in autophagosome-like WIPI1 positive vesicles targeted for lysosomal degradation. Plays also a distinct role in controlling the transcription of melanogenic enzymes and melanosome maturation, a process that is distinct from starvation-induced autophagy. May also regulate the trafficking of proteins involved in the mannose-6-phosphate receptor (MPR) recycling pathway.
Subcellular location: Golgi apparatus › trans-Golgi network. Endosome. Cytoplasmic vesicle › clathrin-coated vesicle. Preautophagosomal structure membrane; Peripheral membrane protein. Cytoplasm › cytoskeleton. Note: Trans elements of the Golgi and peripheral endosomes. Dynamically cycles through these compartments and is susceptible to conditions that modulate membrane flux. Enriched in clathrin-coated vesicles. Upon starvation-induced autophagy, accumulates at subcellular structures in the cytoplasm: enlarged vesicular and lasso-like structures, and large cup-shaped structures predominantly around the nucleus. Recruitment to autophagic membranes is controlled by MTMR14. Labile microtubules specifically recruit markers of autophagosome formation like WIPI1, whereas mature autophagosomes may bind to stable microtubules.
Tissue specificity: Ubiquitously expressed. Highly expressed in skeletal muscle, heart, testis, pancreas and placenta. Highly expressed in G361, Sk-mel-28, Sk-mel-13, WM852 and WM451 cells. Up-regulated in a variety of tumor tissues.

Maintain the lyophilised/reconstituted antibodies frozen at -20°C for long term storage and refrigerated at 2-8°C for a shorter term. When reconstituting, glycerol (1:1) may be added for an additional stability. Avoid freeze and thaw cycles.

12 months after reconstitution

This item will be shipped to you at ambient temperature in a lyophilised form.

1. Proikas-Cezanne T, et al. FEBS Lett. 581:3396-3404(2007)

For research use only

100 µl

Unconjugated antibody

NZ white rabbit

Whole serum

Polyclonal

Polyclonal, whole serum

IHC, WB (confirmed by recombinant protein). A dilution of 1: 300 to 1: 2000 is recommended. The optimal dilution should be determined by the end user. Not yet tested in other applications.

Specific for WIPI1

Human. Other species not yet tested but expected to work in mouse.

Lyophilised

Reconstitute in 100 µl of sterile water. Centrifuge to remove any insoluble material.

Control peptide is available at $120 per 50 μg. Please enquire sales@osenses.com

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