InVivoMAb anti-rat Kappa Immunoglobulin Light Chain

CloneCatalog #Category
MAR 18.5BE0122InVivoMab Antibodies
$95 - $3250

About InVivoMAb anti-rat Kappa Immunoglobulin Light Chain

The MAR 18.5 monoclonal antibody reacts with the kappa chain of the rat immunoglobulin light chain. The κ chain is one of two types of polypeptide subunits which make up the immunoglobulin light chain. A typical antibody is composed of two immunoglobulin heavy chains and two immunoglobulin light chains. The κ chain is coded for by V (variable), J (joining) and C (constant) genes. These genes undergo V(D)J recombination to generate a diverse repertoire of immunoglobulins. This antibody is used in combination with rat anti-mouse CD19 and CD22 (clones 1D3 and Cγ34.1) to deplete B cells in vivo.

InVivoMAb anti-rat Kappa Immunoglobulin Light Chain Specifications

Isotype Mouse IgG2a, κ
Immunogen Soluble rat immunoglobulin
Reported Applications

in vivo B cell depletion in combination with anti-CD19 (clone 1D3) and anti-CD22 (clone Cy34.1)

Formulation
  • PBS, pH 7.0
  • Contains no stabilizers or preservatives
Endotoxin
  • <2EU/mg (<0.002EU/μg)
  • Determined by LAL gel clotting assay
Purity
  • >95%
  • Determined by SDS-PAGE
Sterility 0.2 μM filtered
Production Purified from tissue culture supernatant in an animal free facility
Purification Protein G
RRID AB_10951292
Molecular Weight 150 kDa
Storage The antibody solution should be stored at the stock concentration at 4°C. Do not freeze.

Application References

InVivoMAb anti-rat Kappa Immunoglobulin Light Chain (Clone: MAR 18.5)

 

Sawen, P., et al. (2016). “Mitotic History Reveals Distinct Stem Cell Populations and Their Contributions to Hematopoiesis.” Cell Rep 14(12): 2809-2818. PubMed

Homeostasis of short-lived blood cells is dependent on rapid proliferation of immature precursors. Using a conditional histone 2B-mCherry-labeling mouse model, we characterize hematopoietic stem cell (HSC) and progenitor proliferation dynamics in steady state and following several types of induced stress. HSC proliferation following HSC transplantation into lethally irradiated mice is fundamentally different not only from native hematopoiesis but also from other stress contexts. Whereas transplantation promoted sustained, long-term proliferation of HSCs, both cytokine-induced mobilization and acute depletion of selected blood cell lineages elicited very limited recruitment of HSCs to the proliferative pool. By coupling mCherry-based analysis of proliferation history with multiplex gene expression analyses on single cells, we have found that HSCs can be stratified into four distinct subtypes. These subtypes have distinct molecular signatures and differ significantly in their reconstitution potentials, showcasing the power of tracking proliferation history when resolving functional heterogeneity of HSCs.