Anti-PTPLA polyclonal antibody (CABT-BL5466)


Host Species
Antibody Isotype
Species Reactivity
Synthetic peptide conjugated to KLH, corresponding to a region within N terminal amino acids 33-66 of Human PTPLA.


Application Notes
WB: 1:100-1:500
*Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own experiment using appropriate negative and positive controls.


Alternative Names
PTPLA; protein tyrosine phosphatase-like (proline instead of catalytic arginine), member A; protein tyrosine phosphatase like (proline instead of catalytic arginine), member a; 3-hydroxyacyl-CoA dehydratase 1; CAP; cementum attachment protein
Entrez Gene ID
UniProt ID

Product Background

Biosynthesis of unsaturated fatty acids, organism-specific biosystem; Biosynthesis of unsaturated fatty acids, conserved biosystem; Fatty acid biosynthesis, elongation, endoplasmic reticulum, organism-specific biosystem; Fatty acid biosynthesis, elongation, endoplasmic reticulum, conserved biosystem; Fatty acid elongation, organism-specific biosystem; Fatty acid elongation, conserved biosystem;


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SINE exonic insertion in the PTPLA gene leads to multiple splicing defects and segregates with the autosomal recessive centronuclear myopathy in dogs


Authors: Pele, M; Tiret, L; Kessler, JL; Blot, S; Panthier, JJ

Human centronuclear and myotubular myopathies belong to a genetically heterogeneous nosological group with clinical variability ranging from fatal disorder to mild weakness. The severe X-linked form is attributed to more than 200 different mutations in the myotubularin encoding gene (MTM1). In contrast, there are no reports regarding the molecular etiology or linkage studies on the autosomal forms of the disease. Labrador retrievers affected by spontaneous centronuclear myopathy (cnm) have clinical and histological features of the human disorder and represent the first model of recessive autosomal centronuclear myopathy. We previously mapped the cnm locus to the centromeric region of canine chromosome 2. No gene of the MTM1 family maps to the human homologous chromosomal region. Described herein is a disease-associated insertion within PTPLA exon 2, found in both alleles of all affected Labradors and in a single allele in obligate carriers. The inserted tRNA-derived short interspersed repeat element (SINE) has a striking effect on the maturation of PTPLA mRNA, whereby it can be spliced out, partially exonized or involved in multiple exon-skipping. As a result, the amount of wild-type transcripts falls to 1% in affected muscles. This example therefore recapitulates cumulative SINE-associated transcriptional defects that have been previously described as exclusive consequences of independent mutations. Although the function of PTPLA in metazoa remains unknown, the characterization of a hypomorphic mutation in Labradors with centronuclear myopathy provides new clues about the molecular complexity of skeletal myofiber homeostasis. These results also suggest that impaired PTPLA signaling might be implicated in human myopathies.

Molecular cloning, chromosomal mapping, and developmental expression of a novel protein tyrosine phosphatase-like gene


Authors: Uwanogho, DA; Hardcastle, Z; Balogh, P; Mirza, G; Thornburg, KL; Ragoussis, J; Sharpe, PT

Protein tyrosine phosphatases (PTPs) mediate the dephosphorylation of phosphotyrosine, PTPs are known to be involved in many signal transduction pathways leading to cell growth, differentiation, and oncogenic transformation. We have cloned a new family of novel protein tyrosine phosphatase-like genes, the Ptpl (protein tyrosine phosphatase-like; proline instead of catalytic arginine) gene family. This gene family is composed of at least three members, and we describe here the developmental expression pattern and chromosomal location for one of these genes, Ptpla. In situ hybridization studies revealed that Ptpla expression was first detected at embryonic day 8.5 in muscle progenitors and later in differentiated muscle types: in the developing heart, throughout the liver and lungs, and in a number of neural crest derivatives including the dorsal root and trigeminal ganglia. Postnatally Ptpla was expressed in a number of adult tissues including cardiac and skeletal muscle, liver, testis, and kidney. The early expression pattern of this gene and its persistent expression in adult tissues suggest that it may have an important role in the development, differentiation, and maintenance of a number of different tissue types. The human homologue of Ptpla (PTPLA) was cloned and shown to map to 10p13-p14. (C) 1999 Academic Press.

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