WIPI2 Antibody (C-Terminus, clone 2A2)
Mouse Monoclonal Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application
| WB, IHC-P, IF, IP |
---|---|
Primary Accession | Q9Y4P8 |
Other Accession | 26100 |
Reactivity | Human, Mouse, Rat, Hamster, Guinea Pig |
Host | Mouse |
Clonality | Monoclonal |
Isotype | IgG1 |
Clone Names | 2A2 |
Calculated MW | 49408 Da |
Dilution | IHC-P (10 µg/ml), |
Gene ID | 26100 |
---|---|
Other Names | WIPI2, ATG18B, Atg21, DKFZP434J154, WIPI-2, WIPI49-like protein 2, CGI-50 |
Target/Specificity | Recognizes WIPI2, a mammalian ortholog of Atg18. WIPI2 is recruited to early autophagosomal structures and is required for their maturation into mature autophagosomes. |
Reconstitution & Storage | PBS, 0.09% sodium azide. +4°C or -20°C, Avoid repeated freezing and thawing. |
Precautions | WIPI2 Antibody (C-Terminus, clone 2A2) is for research use only and not for use in diagnostic or therapeutic procedures. |
Name | WIPI2 (HGNC:32225) |
---|---|
Function | Component of the autophagy machinery that controls the major intracellular degradation process by which cytoplasmic materials are packaged into autophagosomes and delivered to lysosomes for degradation (PubMed:20505359, PubMed:28561066). Involved in an early step of the formation of preautophagosomal structures (PubMed:20505359, PubMed:28561066). Binds and is activated by phosphatidylinositol 3- phosphate (PtdIns3P) forming on membranes of the endoplasmic reticulum upon activation of the upstream ULK1 and PI3 kinases (PubMed:28561066). Mediates ER-isolation membranes contacts by interacting with the ULK1:RB1CC1 complex and PtdIns3P (PubMed:28890335). Once activated, WIPI2 recruits at phagophore assembly sites the ATG12-ATG5-ATG16L1 complex that directly controls the elongation of the nascent autophagosomal membrane (PubMed:20505359, PubMed:28561066). |
Cellular Location | Preautophagosomal structure membrane; Peripheral membrane protein; Cytoplasmic side. Note=Localizes to omegasomes membranes which are endoplasmic reticulum connected structures at the origin of preautophagosomal structures. Enriched at preautophagosomal structure membranes in response to PtdIns3P. |
Tissue Location | Ubiquitously expressed (at protein level). Highly expressed in heart, skeletal muscle and pancreas. Expression is down- regulated in pancreatic and in kidney tumors |
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Background
Early component of the autophagy machinery being involved in formation of preautophagosomal structures and their maturation into mature phagosomes in response to phosphatidylinositol 3-phosphate (PtdIns3P). May bind PtdIns3P.
References
Proikas-Cezanne T.,et al.Oncogene 23:9314-9325(2004).
Lai C.-H.,et al.Genome Res. 10:703-713(2000).
Wiemann S.,et al.Genome Res. 11:422-435(2001).
Ebert L.,et al.Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
Ota T.,et al.Nat. Genet. 36:40-45(2004).
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