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Human KIR2DS4 Protein, Recombinant


產(chǎn)品貨號:PR00507HuM1
   
詢價

規(guī)格    100ug

產(chǎn)品名稱Human KIR2DS4 Protein, Recombinant
 
純度≥95 % as determined by SDS-PAGE
 
內(nèi)毒素< 1.0 EU per μg of the protein as determined by the LAL method
 
生物活性/
 
序列起止Gln22~His245
 
標(biāo)簽N-His tag
 
Uniprot鏈接P43632
 
表達(dá)系統(tǒng)CHOS
 
種屬Human
 
預(yù)測 N 端Met
 
預(yù)測分子量/
 
緩沖液20mM Tris, 250mM imidazole, 500mM NaCl, pH8.0, containing 10% glycerol.
 
運(yùn)輸方式This Protein is shipped as lyophilized powder at ambient temperature. Upon receipt, store it immediately at the temperature recommended.
 
穩(wěn)定性 & 儲存條件Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.
 
復(fù)溶Please refer to COA for detailed information
 
質(zhì)量驗(yàn)證圖/

別稱CD158I, KIR1D, KIR412, KKA3, NKAT8, PAX, Cl-39, Natural killer-associated transcript 8, CD158 antigen-like family member I, NK receptor CL-39/CL-17
 
背景信息KIR2DS4/CD158i. KIR2DS4 (2DS4), previously called NKAT-8 and designated CD158i, is a type I transmembrane glycoprotein that belongs to the killer cell Ig-like receptor (KIR) family (1). KIRs are expressed on CD56dim NK cells and T cell subsets where they differentiate normal from abnormal cells and regulate effector functions in the innate immune system (1-3). KIRs are named for the number of Ig-like domains (2D or 3D) in the extracellular domain (ECD), and whether they have long or short (L, S) cytoplasmic tails. KIR2DS4 cDNA encodes 304 amino acids (aa) including a 21 aa signal sequence, a 224 aa ECD, a 20 aa transmembrane sequence and a 39 aa cytoplasmic domain. KIR receptors have no structural orthologs in nonprimates, although mouse Ly-49 proteins perform similar functions (2). Like other activating KIRs, KIR2DS4 has a short tail and a positively charged amino acid (aa) within the transmembrane domain that interacts with the ITAM-bearing signaling adaptor, DAP12 (2, 3). Expression of activating KIR is balanced with inhibitory KIR to impart specificity to the immune response. KIR2DS4 recognizes six HLA-C allotypes and two HLA-A allotypes (A*1101 and A*1102) but no HLA-B allotypes (4, 5). It has also been suggested that KIR2DS4 recognizes a non-MHC ligand, based on specific binding to melanoma cells that lack MHC Class I (6). A common allele, KIR2DS4*003, is present in up to 89% of Caucasians and ~30% of Asians; it creates a prematurely terminated, soluble, inactive form (7, 8). Lack of functional KIR2DS4 can potentially create unbalanced inhibition of killer cell function (4, 8).

全稱Killer cell immunoglobulin-like receptor 2DS4 (KIR2DS4)
 
說明書待上傳