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Human FCRL1 / FCRH1 Protein (His Tag)

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Human FCRL1 Protein Product Information
Synonym:DKFZp667O1421, FCRH1, IFGP1, IRTA5
Protein Construction:A DNA sequence encoding the human FCRL1 (NP_001890.1) extracellular domain (Met 1-Asn 303) was fused with a polyhistidine tag at the C-terminus.
Expressed Host:Human Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human FCRL1 Protein QC Testing
Purity:> 98 % as determined by SDS-PAGE
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Ala 17
Molecule Mass:The secreted recombinant human FCRL1 consists of 298 amino acids and has a calculated molecular mass of 32.6 kDa. It migrates as an approximately 45 kDa band in SDS-PAGE under reducing conditions due to glycosylation.
Formulation:Lyophilized from sterile PBS, pH 7.4, 1mM EDTA
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human FCRL1 Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human FCRL1 Protein SDS-PAGE
Human FCRL1 / FCRH1 Protein (His Tag) SDS-PAGE
Other FCRL1 Recombinant Protein Products
FCRL1/FCRH1 Background

Fc receptor-like protein 1, also known as FcR-like protein 1, Fc receptor homolog 1, IFGP family protein 1, Immune receptor translocation-associated protein 5 and FCRL1, is a single-pass type I  membrane protein which contains three Ig-like C2-type (immunoglobulin-like) domains. It is a cell-surface membrane protein belonging to FCRL family and is preferentially expressed on B cells. FCRL1 is primarily expressed in secondary lymphoid tissues by mature subsets of B cells. It is detected in spleen, lymph node, heart, skeletal muscle, kidney, liver and placenta. FCRL1 is specifically expressed by mature B lineage cells with higher expression in naive versus memory B cells (at protein level). Human Fc receptor-like molecules (FCRL1, FCRL2, FCRL3, FCRL4, FCRL5) have tyrosine-based immunoregulatory potential and are expressed by B-lineage subpopulations. FCRL1 may function as an activating coreceptor in B cells. It may also function in B cells activation and differentiation.

Human FCRL1/FCRH1 References
  • Du X. et al., 2008, Blood. 111 (1): 338-43.
  • Kazemi T. et al., 2008, Int J Cancer. 123 (9): 2113-9.
  • Baranov K. et al., 2008, J Immunol Methods. 332 (1-2): 73-81.
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    Catalog: 11536-H08H-50
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