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Lamp1 Antibody – MCA-5H6

  • Clonality : Mouse Monoclonal
  • Applications : WB | IF/ICC | IHC
  • Reactivity : Human | Horse | Cow | Pig | Chicken | Rat | Mouse

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Encor Mouse Monoclonal to Lysosomal Associated Membrane Protein 1 (LAMP1, a.k.a. CD107a, LGP120 and LAMPA), LAMP1 

As the name suggests, LAMP1 is a protein primarily associated with the lysosomal membrane. Antibodies to LAMP1 are therefore excellent markers of lysosomes in mammalian cells, though some LAMP1 may also be seen on late endosomes and on the plasma membrane. In a typical cell LAMP1 is associated with spherical vesicles located next to the nucleus and the microtubule organizing center (1). The protein is also known as CD107a, lysosomal associated membrane glycoprotein 1, LGP120 and LAMPA, as the protein was independently discovered and named by several different labs. CD is an abbreviation for “Cluster of Differentiation” and refers to a protocol for the naming of proteins and other surface markers of human leukocytes defined by binding of specific monoclonal antibodies.
LAMP1 is found on the cell surface of lymphocytes undergoing degranulation, a process in which cytoplasmic vesicles fuse with the plasma membrane, and this phenomena resulted in discovery of LAMP1 as a CD protein.

The LAMP1 protein has a large N-terminal region which is inside the lysosome, hence topologically external to the cell, which is often referred to as the lumenal domain (2). The lumenal domain consists of two homologous globular segments separated by a proline rich sequence. Next there is a single membrane spanning domain and a short 11 amino acid C-terminal cytoplasmic tail. This tail region contains, at the extreme C-terminus, a so-called YXXI motif which is responsible for the sorting of the intact molecule to the endosome and lysozome, where Y = tyrosine, I = isoleucine and X = almost any amino acid (3). This motif is found in several other lysosomal proteins, where it functions in the same way. There are 417 amino acids in the human LAMP1 molecule, giving a native molecular weight of 44.8 kDa. However, the N-terminal lumenal segment of LAMP1 is very heavily and variably glycosylated due to the presence of 18 N-linked glycosylation sites, so that on SDS-PAGE and on Western blots the protein runs as a diffuse band at 90-120 kDa. The HGNC name for this protein is LAMP1.


HGNC name(s) : LAMP1


Host : Mouse


Clonality : Monoclonal


ID : EnCor Biotechnology Lamp1 5H6


Reactivity : Human | Horse | Cow | Pig | Chicken | Rat | Mouse


Isotype : IgG1


Conjugation : none


Immunogen : Recombinant full length human


Mass of detected protein : ~90 and 120 kDa


Uniprot ID : P11279


KGNC name : LAMP1


RRID # : AB_2572342


Purification : Affinity purified at 1 mg/mL


Storage : Shipped on ice. Store at 4°C. For long term storage, leave frozen at -20°C. Avoid freeze / thaw cycles.


Validated applications : WB | IF/ICC | IHC


Suggested Dilutions: 

WB: 1:10 000. ICC/IF and IHC: 1:2 000.


Datasheet


Link to on EnCor’s website 


References :

1. Matteoni, R. and Kreiss, T. E. Translocation and clustering of endosomes and lysosomes depends on microtubules. J. Cell Biol. 105:1253-1265 (1987).

2. Howe CL, Granger BL, Hull M, Green SA, Gabel CA, Helenius A, Mellman I. Derived protein sequence, oligosaccharides, and membrane insertion of the 120-kDa lysosomal membrane glycoprotein (lgp120): identification of a highly conserved family of lysosomal membrane glycoproteins. Proc Natl Acad Sci U S A. 85:7577-81 (1988).

3. Rohrer J, Schweizer A, Russell D, Kornfeld S. The targeting of Lamp1 to lysosomes is dependent on the spacing of its cytoplasmic tail tyrosine sorting motif relative to the membrane. J Cell Biol. 132:565-76 (1996).


Additional information

Format

50 ul, 100 ul, 500 ul

Supplier

Host

Mouse

Clonality

Monoclonal

Conjugation

None

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