Product Description

CD22 Recombinant Protein

Sizes: 500μg, 1mg

Catalogue Numbers: NCP0191-500, NCP0191-1000

Lead times: 1-2 weeks, if manufacturer has product in stock

Manufacturer/Ship Location: China

Background: CD22 (also known as siglec-2) is a member of the sialic acid-binding immunoglobμlin-type lectin (Siglec) family of immunomodμlatory receptors. CD22 can bind to its ligand α 2,6-linked sialic acid on different cells (trans interaction) as well as on the same cells (cis interaction). CD22 is predominantly expressed on B cells and functions as an inhibitory co-receptor for the B cell receptor (BCR). After BCR ligation, the tyrosine kinase Lyn is activated and phosphorylates two distal of the four ITIM motifs in the intracellμlar carboxy-terminal region of CD22, which then recruit tyrosine phosphatases, including SHP-1, to the plasma membrane, and in turn, they get tyrosine-phosphorylated and activated to damp the signaling pathways initiated by BCR ligation. CD22 has been actively pursued as a therapeutic target for autoimmune diseases. Due to almost exclusive expression on B cells, it is also actively pursued as a therapeutic target for mμltiple B cell malignancies.

Category: Protein

Host: E. coli

Purification and Purity: Transferred into competent cells and the supernatant was purified by NI column affinity chromatography and the purity is > 85% (by SDS-PAGE).

Molecular Weight: ~74kDa

Solubility: PBS, 4M Urea, PH7.4

Storage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Restriction Sites: NdeI-XhoI

SwissProt: P20273

Tag: His-tag

Amino Acid Sequence: GATAGTAGCAAATGGGTGTTCGAACATCCGGAAACCTTATATGCCTGGGAAGGTGCATGCGTGTGGATTCCGTGTACCTATCGCGCACTGGATGGCGATCTGGAAAGCTTCATTCTGTTCCATAATCCGGAATATAATAAGAATACCAGCAAATTCGACGGCACCCGCCTGTATGAAAGCACCAAAGATGGTAAAGTTCCGAGTGAACAGAAACGTGTTCAGTTCCTGGGCGATAAAAATAAAAATTGCACCCTGAGCATTCATCCGGTGCATCTGAATGATAGCGGTCAGCTGGGCCTGCGCATGGAAAGTAAAACCGAAAAATGGATGGAACGTATTCATCTGAATGTTAGCGAACGTCCGTTCCCGCCGCATATTCAGCTGCCGCCGGAAATTCAGGAAAGTCAGGAAGTTACCCTGACCTGTCTGCTGAACTTCAGTTGCTATGGCTATCCGATTCAGCTGCAGTGGCTGCTGGAAGGCGTGCCGATGCGCCAGGCCGCTGTGACAAGCACCAGCCTGACCATTAAAAGTGTGTTCACCCGTAGTGAACTGAAATTCAGTCCGCAGTGGAGCCATCATGGTAAAATTGTGACCTGCCAGCTGCAGGATGCCGATGGCAAATTCCTGAGCAATGATACCGTTCAGCTGAATGTGAAACATACCCCGAAACTGGAAATTAAAGTGACCCCGAGTGATGCAATTGTTCGCGAAGGTGATAGTGTGACCATGACCTGTGAAGTTAGCAGCAGTAATCCGGAATACACCACCGTTAGCTGGCTGAAAGATGGCACCAGTCTGAAAAAACAGAATACCTTCACCCTGAATCTGCGCGAAGTGACCAAAGATCAGAGCGGTAAATATTGCTGTCAGGTTAGCAATGATGTGGGCCCGGGCCGTAGCGAAGAAGTGTTCCTGCAGGTGCAGTATGCACCGGAACCGAGTACCGTGCAGATTCTGCATAGCCCGGCCGTGGAAGGTAGCCAGGTTGAATTCCTGTGCATGAGCCTGGCAAATCCGCTGCCGACCAATTATACCTGGTATCATAATGGCAAAGAAATGCAGGGTCGCACCGAAGAAAAAGTGCATATTCCGAAAATTCTGCCGTGGCATGCAGGTACCTATAGTTGTGTGGCCGAAAATATTCTGGGTACCGGTCAGCGCGGTCCGGGTGCTGAACTGGATGTGCAGTATCCGCCGAAAAAAGTGACCACCGTTATTCAGAATCCGATGCCGATTCGTGAAGGCGATACCGTGACCCTGAGCTGTAATTATAATAGCAGCAATCCGAGCGTGACCCGCTATGAATGGAAACCGCATGGCGCCTGGGAAGAACCGAGTCTGGGTGTGCTGAAAATTCAGAATGTGGGCTGGGATAATACCACCATTGCATGTGCCGCATGCAATAGCTGGTGTAGCTGGGCCAGCCCGGTTGCACTGAATGTTCAGTATGCACCTCGTGATGTGCGTGTGCGTAAAATTAAACCGCTGAGCGAAATTCATAGTGGTAATAGTGTTAGTCTGCAGTGTGACTTCAGCAGTAGCCATCCGAAAGAAGTGCAGTTCTTCTGGGAAAAAAATGGTCGCCTGCTGGGCAAAGAAAGTCAGCTGAACTTCGATAGTATTAGCCCGGAAGATGCCGGTAGCTATAGTTGTTGGGTTAATAATAGCATTGGTCAGACCGCCAGTAAAGCATGGACCCTGGAAGTGCTGTATGCACCGCGTCGTCTGCGTGTGAGTATGAGTCCGGGTGATCAGGTTATGGAAGGTAAAAGTGCAACCCTGACCTGCGAAAGTGATGCAAATCCGCCGGTTAGTCATTATACCTGGTTCGATTGGAATAATCAGAGTCTGCCGTATCATAGTCAGAAACTGCGCCTGGAACCGGTTAAAGTGCAGCATAGCGGTGCATATTGGTGTCAGGGCACCAATAGTGTTGGTAAAGGCCGTAGCCCGCTGAGTACCCTGACCGTGTATTATAGCCCGGAAACCATTGGCCGTCGC

Expression Vector: pet-22b(+)

Research Use Only