CD45 Protein, Human, Recombinant (His & Avi)

PTPRC (also known as CD45),T cells require the protein tyrosine phosphatase CD45 to detect and respond to antigen because it activates the Src family kinase Lck, which phosphorylates the T cell antigen receptor (TCR) complex. CD45 ativates Lck by opposing the negative regulatory kinase Csk. Paradoxically, CD45 has also been implicated in suppressing TCR signaling by dephosphorylating the same signaling motifs within the TCR complex upon which Lck acts. CD45 Protein, Human, Recombinant (His & Avi) is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 47.3 kDa and the accession number is P08575-4.

CD45 Protein, Human, Recombinant (His & Avi)

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 112,000
500 μg	約5 days	￥ 447,500
1 mg	約5 days	￥ 746,000

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説明

Species	Human
Expression Host	HEK293 Cells
Tag	C-His-Avi
Accession Number	P08575-4
別名	CD45R, LY5, EC 3.1.3.48, B220, CD45, T200, L-CA, GP180, LCA, PTPRC
Construction	Gln26-Ile416
Protein Purity	> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
分子量	47.3 kDa (predicted). Due to glycosylation, the protein migrates to 80-110 kDa based on Tris-Bis PAGE result.

Endotoxin	< 1 EU/μg by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% trehalose is incorporated as a protective agent before lyophilization.
Reconstitution	Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.
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 proteinsolutions, 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	PTPRC (also known as CD45),T cells require the protein tyrosine phosphatase CD45 to detect and respond to antigen because it activates the Src family kinase Lck, which phosphorylates the T cell antigen receptor (TCR) complex. CD45 ativates Lck by opposing the negative regulatory kinase Csk. Paradoxically, CD45 has also been implicated in suppressing TCR signaling by dephosphorylating the same signaling motifs within the TCR complex upon which Lck acts.

参考文献

1. Courtney AH, et al. CD45 functions as a signaling gatekeeper in T cells. Sci Signal. 2019 Oct 22;12(604):eaaw815doi: 10.1126/scisignal.aaw815PMID: 31641081; PMCID: PMC6948007.

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CD45 Protein, Human, Recombinant (His & Avi)

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