Phospho-SHP2 (Y542) Recombinant Rabbit Monoclonal Antibody [SN61-01]

Function

Tyrosine-protein phosphatase non-receptor type 11 (PTPN11) also known as protein-tyrosine phosphatase 1D (PTP-1D), Src homology region 2 domain-containing phosphatase-2 (SHP-2), or protein-tyrosine phosphatase 2C (PTP-2C) is an enzyme that in humans is encoded by the PTPN11 gene. PTPN11 is a protein tyrosine phosphatase (PTP) Shp2. PTPN11 is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains two tandem Src homology-2 domains, which function as phospho-tyrosine binding domains and mediate the interaction of this PTP with its substrates. This PTP is widely expressed in most tissues and plays a regulatory role in various cell signaling events that are important for a diversity of cell functions, such as mitogenic activation, metabolic control, transcription regulation, and cell migration. Mutations in this gene are a cause of Noonan syndrome as well as acute myeloid leukemia.

Background References

1. Tsang YH et al. Novel Functions of the Phosphatase SHP2 in the DNA Replication and Damage Checkpoints. PLoS One 7:e49943 (2012).

2. Banes-Berceli AK et al. Angiotensin II and endothelin-1 augment the vascular complications of diabetes via JAK2 activation. Am J Physiol Heart Circ Physiol 293:H1291-9 (2007).

Sequence Similarity

Belongs to the protein-tyrosine phosphatase family. Non-receptor class 2 subfamily.

Tissue Specificity

Widely expressed, with highest levels in heart, brain, and skeletal muscle.

Post-translational Modification

Phosphorylated on Tyr-542 and Tyr-580 upon receptor protein tyrosine kinase activation; which creates a binding site for GRB2 and other SH2-containing proteins. Phosphorylated upon activation of the receptor-type kinase FLT3. Phosphorylated upon activation of the receptor-type kinase PDGFRA (By similarity). Phosphorylated by activated PDGFRB.

Subcellular Location

Cytoplasm, Nucleus.

UNIPROT

SwissProt: Q06124 Human

SwissProt: P35235 Mouse

Synonyms