PTEN (phosphatase and tensin homolog) was identified as a tumor suppressor that is mutated in a large number of cancers at high frequency. The protein encoded by PTEN is a phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase. It contains a tensin like domain as well as a catalytic domain similar to that of the dual specificity protein tyrosine phosphatases. Unlike most of the protein tyrosine phosphatases, this protein preferentially dephosphorylates phosphoinositide substrates. It negatively regulates intracellular levels of phosphatidylinositol-3,4,5-trisphosphate in cells and functions as a tumor suppressor by negatively regulating AKT/PKB signaling pathway. The use of a non-canonical (CUG) upstream initiation site produces a longer isoform that initiates translation with a leucine, and is thought to be preferentially associated with the mitochondrial inner membrane. This longer isoform may help regulate energy metabolism in the mitochondria. A pseudogene of PTEN is found on chromosome 9. Alternative splicing and the use of multiple translation start codons results in multiple transcript variants encoding different isoforms
Clonality
Polyclonal
Formulation
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen
Host
Rabbit
Immunogen
Synthesized peptide derived from human PTEN around the phosphorylation site of S380/T382/T383
Isotype
Rabbit IgG
Reactivity
Human, Mouse, Rat
Gene Id
5728
Concentration
1 mg/ml
Purification
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen
Storage Buffer
PBS containing 50% Glycerol, 0.5% BSA and 0.02% Sodium Azide
Applications
Protein General Reagents
Reviews of PTEN (phospho Ser380/T382/T383) Polyclonal Antibody