Protein-tyrosine-phosphatase of regenerating liver 1 (PRL1), also known as protein tyrosine phosphatase type IVA, member 1 (PTP4A1), is encoded by the gene mapped to human chromosome 6q12. The encoded protein is a member of a small class of prenylated protein tyrosine phosphatases (PTPs). It is characterized by a PTP domain and a specific C-terminal prenylation motif. PRL1 is mainly localized to the cell membrane and the endoplasmic reticulum depending on its C-terminal prenylation.
Immunogen
PRL1 (NP_003454.1, 1-200) This antibody is generated from rabbits immunized with a recombinant protein encoding full length of human PRL1.
Biochem/physiol Actions
Protein-tyrosine-phosphatase of regenerating liver 1 (PRL1) regulates cancer-related signaling pathways, which are downstream of epidermal growth factor receptor (EGFR) pathway and stimulates cell proliferation, invasion and migration. PRL1 acts as a potential therapeutic target and predictor for patient survival in prostate cancer (PCa) including those with castration-resistant prostate cancer (CRPC). PRL1 is essential for normal mitotic process. Elevated expressions of prenylated protein tyrosine phosphatases (PTPs) in mammalian cells conferred a transformed phenotype, which might be involved in the tumorigenesis.
Physical form
Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide.
The gene encoding human nuclear protein tyrosine phosphatase, PRL-1. Cloning, chromosomal localization, and identification of an intron enhancer.
Peng Y
The Journal of Biological Chemistry, 273, 17286-17295 (1998)
The tyrosine phosphatase PRL-1 localizes to the endoplasmic reticulum and the mitotic spindle and is required for normal mitosis.
Wang J
The Journal of Biological Chemistry, 277, 46659-46668 (2002)
Identification of PRL1 as a novel diagnostic and therapeutic target for castration-resistant prostate cancer by the Escherichia coli ampicillin secretion trap (CAST) method.
Shinmei S
Urologic Oncology, 32, 769-778 (2014)
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