KIR2DL1 Protein, Human, Recombinant (His)

KIR2DL1 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 26 kDa and the accession number is Q6H2H3.

KIR2DL1 Protein, Human, Recombinant (His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	在庫あり	￥ 88,500
200 μg	約5 days	￥ 156,500
500 μg	約5 days	￥ 330,500

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生物学的情報	Testing in progress
説明	KIR2DL1 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 26 kDa and the accession number is Q6H2H3.

Species	Human
Expression Host	HEK293 Cells
Tag	C-His
Accession Number	Q6H2H3
別名	NKAT-1, KIR-K64, XXbac-BPG184J6.7, NKAT1, p58.1, killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 1, CD158A, NKAT, XXbac-BCX195L8.1, KIR221
Construction	The Human KIR2DL1 (NP_055033.2) extracellular domain (Met 1-His 245) was fused with a polyhistidine tag at the C-terminus.
Protein Purity	> 92 % as determined by SDS-PAGE
分子量	26 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted protein solutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	Killer cell immunoglobulin-like receptor 2DL1 or KIR2DL1 is an inhibitory Natural Killer cell immunoglobulin-like receptor with two extracellular immunoglobulin domains. KIR2DL1 is a member of the Killer cell immunoglobulin-like receptor family whose members are classified by the number of the extracellular immunoglobulin domains and the length of the cytoplasm domain. KIR2DL1 is a transmembrane glycoprotein expressed by natural killer cells and subsets of T cells. KIR2DL1 down-regulates the cytotoxicity of NK cells upon recognition of specific class I major histocompatibility complex (MHC) molecules on target cells. It has been reported that the KIR2DL1 is bound to its class I MHC ligand, HLA-Cw4. The KIR2DL1-HLA-Cw4 interface exhibits charge and shape complementarity. Specificity is mediated by a pocket in KIR2DL1 that hosts the Lys80 residue of HLA-Cw4. Many residues conserved in HLA-C and KIR2DL receptors make different interactions in KIR2DL1-HLA-Cw4 and a previously reported KIR2DL2-HLA-Cw3 complex. A dimeric aggregate of KIR-HLA-C complexes was observed in one KIR2DL1-HLA-Cw4 crystal.

参考文献

1. Fan QR, et al. (2001) Crystal structure of the human natural killer cell inhibitory receptor KIR2DL1-HLA-Cw4 complex. Nature Immunology. 2: 452-60. 2. Wagtmann N, et al. (1995) Molecular clones of the p58 NK cell receptor reveal immunoglobulin-related molecules with diversity in both the extra- and intracellular domains. Immunity. 2 (5): 439-49. 3. Colonna M, et al. (1995) Cloning of immunoglobulin-superfamily members associated with HLA-C and HLA-B recognition by human natural killer cells. Science. 268 (5209): 405-8.

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KIR2DL1 Protein, Human, Recombinant (His)

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