Recombinant Mouse Immunoglobulin J chain(Jchain)

In Stock
Code CSB-EP011337MO
Size US$2466
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details


CUSABIO synthesized the recombinant gene by integrating the N-terminal 6xHis-SUMO tag sequence into the targeted gene encoding the 22-159aa of the mouse Jchain. The synthesized gene was subsequently cloned into an expression vector. After cloning, the expression vector was introduced into the E.coli for expression. The product was purified to obtain the recombinant mouse Jchain protein carrying N-terminal 6xHis-SUMO tag. The SDS-PAGE assayed the purity of this recombinant Jchain protein greater than 90%. This Jchain protein migrated along the gel to a band of about 30 kDa molecular weight.

Immunoglobulin J chain is a protein encoding by a gene named Jchain in mouse and a gene named JCHAIN in human. This protein is a protein component of the antibodies IgM and IgA. The J chain-joined dimer is a nucleating unit for the IgM pentamer. And it induces dimers and/or larger polymers in the case of IgA. Moreover, it also helps to bind these immunoglobulins to secretory component. The diseases involved JCHAIN include Alpha Chain Disease and Climatic Droplet Keratopathy. Additionally, a study have reported that the upregulation of JCHAIN was likely related to tumor aggression, as studied in a cohort of patients with acute lymphoblastic leukemia (ALL).

Purity Greater than 90% as determined by SDS-PAGE.
Target Names Jchain
Uniprot No. P01592
Research Area Immunology
Alternative Names
Jchain; IgjImmunoglobulin J chain
Species Mus musculus (Mouse)
Source E.coli
Expression Region 22-159aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 31.7kDa
Protein Length Full Length of Mature Protein
Tag Info N-terminal 6xHis-SUMO-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer Tris-based buffer,50% glycerol
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time 3-7 business days
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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Target Background

Serves to link two monomer units of either IgM or IgA. In the case of IgM, the J chain-joined dimer is a nucleating unit for the IgM pentamer, and in the case of IgA it induces dimers and/or larger polymers. It also helps to bind these immunoglobulins to secretory component.
Gene References into Functions
  1. Data show that Crlz1 increased the IgJ enhancer activity due to its CBF sites, as verified by both the absence of Crlz1 effect on the CBF-site mutated IgJ enhancer and the presence of transcriptional synergy between Crlz1 and CBFbeta. PMID: 19735751
  2. identifies the HSS3/4 enhancer of Crlz1-IgJ locus as another target of EBG in early developmental stage of B cells PMID: 16962668
  3. H3 and H4 histones toward the chromatin of the Crlz1 gene are found to be hyperacetylated, especially on H3, in the pre-B cells, whereas those toward the chromatin of the IgJ gene are found to be hyperacetylated in the plasma cells PMID: 17015728
Subcellular Location Secreted.
Database Links

KEGG: mmu:16069

STRING: 10090.ENSMUSP00000084259

UniGene: Mm.1192

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