Mouse Anti-PMEL Recombinant Antibody (clone ABT-PMEL) (CAT#: VS3-CJ935)

• Immunogen
• Synthesized peptide derived from human PMEL

• Host Species
• Mouse

• Type
• Mouse IgG2b, κ

• Specificity
• Human PMEL

• Species Reactivity
• Human

• Clone
• ABT-PMEL

• Applications
• IHC-P

• Conjugate
• Unconjugated

• Purification
• Affinity Chromatography

• Purity
• >95% as determined by SDS-PAGE

• Format
• Liquid

• Buffer
• 50% Glycerol, 0.5% BSA, PBS.

• Preservative
• 0.02% Sodium Azide

• Storage
• Store at 4°C for short term. Aliquot and store at -20°C for long term. Avoid repeated freeze/thaw cycles.

• Application Notes
• This antibody has been tested for use in Immunohistochemistry-Parraffin (1:100-1:500).

• Alternative Names
• P1; SI; SIL; ME20; P100; SILV; ME20M; gp100; ME20-M; PMEL17; D12S53E

• Gene ID
• 6490

• UniProt ID
• P40967

• Sequence Similarities
• Belongs to the PMEL/NMB family.

• Cellular Localization
• Endoplasmic reticulum, Endosome, Golgi apparatus, Membrane, Secreted

• Post Translation Modifications
• N- and O-glycosylated. A small amount of P1/P100 (major form) undergoes glycosylation in ER and Golgi compartments to yield P2/P120 (minor form). The mature P2 form leaves the trans-Golgi network and is mainly targeted to stage I melanosomes via the plasma membrane and clathrin-mediated endocytosis. Stage II melanosomes harbor only Golgi-modified fragments that are derived from M-alpha and that bear sialylated O-linked oligosaccharides. O-glycosylation of the RPT region is a conserved feature likely involved in amyloid sheet separation via electrostatic repulsion.
  Undergoes multiple proteolytic processing. In a post-Golgi prelysosomal compartment, P2 is cleaved by a furin-like proprotein convertase (PC) into two disulfide-linked subunits: a large lumenal subunit, M-alpha/ME20-S, and an integral membrane subunit, M-beta. Despite cleavage, only a small fraction of M-alpha is secreted, as most M-alpha and M-beta remain associated with each other intracellularly via a disulfide bond (PubMed:12732614, PubMed:11694580, PubMed:15695812, PubMed:15096515, PubMed:17991747).
  Once targeted to stage I melanosomes, beta-secretase BACE2 cleaves the M-beta fragment to release the amyloidogenic luminal fragment containing M-alpha and a small portion of M-beta N-terminus (PubMed:23754390).
  M-alpha is further cleaved by metalloproteinases, likely ADAM10 or ADAM17, and still unknown proteases to yield subfragments that ultimately assemble into amyloid fibrils (PubMed:19047044).
  The C-terminal fragment of M-beta is processed by the gamma-secretase complex to release a short intracytoplasmic domain (PubMed:19047044).

• Protein Refseq
• NP_001186982.1; NP_001186983.1; NP_001307050.1

• Function
• Forms physiological amyloids that play a central role in melanosome morphogenesis and pigmentation. The maturation of unpigmented premelanosomes from stage I to II is marked by assembly of processed amyloidogenic fragments into parallel fibrillar sheets, which elongate the vesicle into a striated ellipsoidal shape. In pigmented stage III and IV melanosomes, the amyloid matrix serves as a platform where eumelanin precursors accumulate at high local concentrations for pigment formation. May prevent pigmentation-associated toxicity by sequestering toxic reaction intermediates of eumelanin biosynthesis pathway.
  Represents a potent melanoma-specific antigen. Among melanoma non-mutated self-peptides, G9-154 (KTWGQYWQV), G9-209 (ITDQVPFSV) and G9-280 (YLEPGPVTA), appear to act as immunodominant common epitopes that stimulate anti-tumor immune response mediated by HLA-A-restricted cytotoxic T cells.

Isotype Control

• MOB-212YJL
• Mouse IgG2b kappa Isotype Control Antibody (Mopc21)

• MOB-203CQ
• Mouse IgG2b, kappa Isotype Control Antibody

Secondary Antibody

• 2RD-A1466-YJ
• Goat Anti-Mouse IgG2b Secondary antibody

• 2RD-A1560-YJ
• Rabbit Anti-Mouse IgG2b Secondary antibody (Clone RM108)

Recommended Dilution Buffer

• MRO-0253YJ
• Reconstitution Buffer PBS