96 Tests PN: B111423

Components:

45x Ab-conjugated beads (S5P5 - Human Galectin-1 Ab-bead). PN: B111423A. One vial containing 100 µL of anti-human Galectin-1 conjugated to AimPlex Bead S5P5

25x Biotin-detection Ab (Human Galectin-1 Biotin-dAb). PN: B111423B. One vial containing    100 µL of biotinylated anti- Human Galectin-1.

Lyophilized Standard Mix - Human  Galectin-1. PN: B111423S. One vial containing lyophilized Galectin-1.

Application: Optimal antibody pair and antigen standard for assaying human Human Galectin-1/Galaptin. To be used in conjunction with the AimPlex NR Basic Kit (PN: P100001) and a diluent kit. Refer to the AimPlex Multiplex Immunoassay User Manual and kit inserts for the assay procedure.

Storage:  2-8 C in the dark.

Important: Sodium azide forms explosive compounds with heavy metals. These products contain <0.05% (w/w) azide which with repeated contact with lead and copper commonly found in plumbing drains may result in the buildup of shock sensitive compounds. Dispose in accordance with regulations from your institute.

For Research Use Only.  Not for use in diagnostic procedures.

Assay Specifications:

  • Sample types: Cell culture supernatant, serum, plasma, bodily fluid and tissue/cell lysate

  • Sensitivity (LOD): < 100 pg/mL

  • Quantitation range:

  • LLOQ: < 200 pg/mL

  • ULOQ: > 20,000 pg/mL

  • Standard dose recovery: 70-130%

  • Intra-assay CV: < 10%

  • Inter-assay CV: < 20%

  • Sample volume: 15 µL/test

Description:

The galectins are a family of beta-galactoside-binding proteins implicated in modulating cell-cell and cell-matrix interactions. Galectin-1 may act as an autocrine negative growth factor that regulates cell proliferation. Galectin-1 expression in Hodgkin Lymphoma has also been shown to mediate immunosuppression of CD8+ T-cells. The galectin-1 protein found in the nucleus, the cytoplasm, the cell surface and in the extracellular space. Galectins in general lack a traditional signal sequence, but are still secreted across the plasma membrane. This non-traditional secretion requires a functional glycan binding site. Galectin 1 contains a single carbohydrate recognition domain through which it can bind glycans both as a monomer and as a homodimer. Dimers are non-covalently bound and will spontaneously disassociate in low concentration. Galectin 1 does not bind glycans when oxidized. Having 6 cysteine residues, the oxidation state has a significant effect on the protein structure. The oxidized form is reported to have alternative functions not involving carbohydrate binding. Diseases associated with LGALS1 include Choriocarcinoma and Benign Metastasizing Leiomyoma.

References:

  1. Gitt MA, Barondes SH (February 1991). "Genomic sequence and organization of two members of a human lectin gene family". Biochemistry. 30 (1): 82–9. doi:10.1021/bi00215a013. PMID 1988031.

  2. Gauthier L, Rossi B, Roux F, Termine E, Schiff C (October 2002). "Galectin-1 is a stromal cell ligand of the pre-B cell receptor (BCR) implicated in synapse formation between pre-B and stromal cells and in pre-BCR triggering". Proc Natl Acad Sci U S A. 99 (20): 13014–9. doi:10.1073/pnas.202323999. PMC 130578. PMID 12271131.

  3. Cho M, Cummings RD (1995). "Galectin-1, a beta-galactoside-binding lectin in Chinese hamster ovary cells. I. Physical and chemical characterization". J. Biol. Chem. 270 (10): 5198–206. doi:10.1074/jbc.270.10.5198. PMID 7890630.

  4. Outenreath RL, Jones AL (1992). "Influence of an endogenous lectin substrate on cultured dorsal root ganglion cells". J. Neurocytol. 21 (11): 788–95. doi:10.1007/bf01237904. PMID 1431997.

  5. Kadoya T, Horie H (2005). "Structural and functional studies of galectin-1: a novel axonal regeneration-promoting activity for oxidized galectin-1". Curr Drug Targets. 6 (4): 375–83. doi:10.2174/1389450054022007. PMID 16026256.