存储缓冲液
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Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% New type preservative N and 50% glycerol. Store at +4°C
short term. Store at -20°C long term. Avoid freeze / thaw cycle.
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组织表达
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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.
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细胞定位
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Golgi apparatus, trans-Golgi network. Endosome. Cytoplasmic vesicle, clathrin-coated vesicle. Preautophagosomal structur
e membrane; Peripheral membrane protein. Cytoplasm, cytoskeleton. Note=Trans elements of the Golgi and peripheral endoso
mes. Dynamically cycles through these compartments and is susceptible to conditions that modulate membrane flux. Enriche
d 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. Recrui
tment 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
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功能
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Component of the autophagy machinery that controls the major intracellular degradation process by which cytoplasmic materia
ls are packaged into autophagosomes and delivered to lysosomes for degradation (x, PubMed:20114074, PubMed:20
484055, PubMed:20639694, PubMed:23088497, PubMed:28561066, PubMed:31271352). Plays an important role in starvation- and cal
cium-mediated autophagy, as well as in mitophagy (PubMed:28561066). Functions downstream of the ULK1 and PI3- kinases that
produce phosphatidylinositol 3-phosphate (PtdIns3P) on membranes of the endoplasmic reticulum once activated (PubMed:285610
66). Binds phosphatidylinositol 3-phosphate (PtdIns3P), and maybe other phosphoinositides including PtdIns3,5P2 and PtdIns5
P, and is recruited to phagophore assembly sites at the endoplasmic reticulum membranes (PubMed:28561066, PubMed:31271352,
PubMed:33499712). There, it assists WIPI2 in the recruitment of ATG12- ATG5-ATG16L1, a complex that directly controls the e
longation of the nascent autophagosomal membrane (PubMed:). Together with WDR45/WIPI4, promotes (ATG2A or ATG2
B)-mediated lipid transfer by enhancing -association with phosphatidylinositol 3-monophosphate (PI3P)-containing membra
nes (PubMed:31271352). Involved in xenophagy of Staphylococcus aureus (PubMed:22829830). Invading S.aureus cells become ent
rapped in autophagosome-like WIPI1 positive vesicles targeted for lysosomal degradation (PubMed:22829830). Plays also a dis
tinct role in controlling the transcription of melanogenic enzymes and melanosome maturation, a process that is distinct fr
om starvation-induced autophagy (PubMed:21317285). May also regulate the trafficking of proteins involved in the mannose-6-
phosphate receptor (MPR) recycling pathway (PubMed:15020712).
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