PPT1 Antibody (C-term)

Synthetic Peptide

Palmitoyl-protein thioesterase-1 (PPT1) is a lysosomal hydrolase that removes long-chain fatty acyl groups from modified cysteine residues in proteins. Mutations in PPT1 have been found to cause the infantile form of neuronal ceroid lipofuscinosis (INCL), and an animal model has been developed.1 The deduced PPT2 protein contains 302 amino acids, including a 27-amino acid leader peptide, a sequence motif characteristic of many thioesterases and lipases, and 5 potential N-linked glycosylation sites.2 PPT2 shares 18% amino acid identity with PPT1. Northern blot analysis detected a predominant 2.0-kb PPT2 transcript in the human tissues examined, with the highest expression in skeletal muscle; variable amounts of 2.8- and 7.0-kb transcripts were also observed. Recombinant PPT2, like PPT1, possesses thioesterase activity and localizes to the lysosome. Since PPT2 could not substitute for PPT1 in correcting the metabolic defect in INCL cells and was unable to remove palmitate groups from palmitoylated proteins that are routinely used as substrates for PPT1it has been postulated that PPT2 possesses a different substrate specificity than PPT1.

Polyclonal

5538

Purified Rabbit Polyclonal Antibody (Pab)

Western blot analysis of PPT1 Antibody (C-term) (Cat. #AP2538b) in 293 cell line lysates (35ug/lane). PPT1 (arrow) was detected using the purified Pab.

1:1000

WB

Formalin-fixed and paraffin-embedded human lung carcinoma tissue reacted with PPT1 antibody (C-term) (Cat. #AP2538b), which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated.

1:50~100

Pr

34193

HUMAN

NP_000301.1; NP_001136076.1