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Recombinant Human Signal regulatory protein alpha, His (HEK293-expressed)

英文名：
Cas号：
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货号 规格 货期 库存 价格 会员价 订购
1308132921-10 μg 0 ￥3800 请登录
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1308132921-50 μg 0 ￥7800 请登录
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别 名
Cas号
M D L
分子式
分子量
产品参数
性状 Recombinant Human Signal regulatory protein alpha, His (HEK293-expressed) 在 HEK293 细胞中产生，具有 C-端6× His标签。SIRPα 是一种单体，约 90kDa 的 I 型跨膜糖蛋白，属于免疫球蛋白超家族的 SIRP/SHPS (CD172) 家族。
Synonyms
rHuSignal regulatory protein α, His; CD172a; SHPS-1; BIT; MYD1 ; 重组人信号调节蛋白，His (HEK 293表达)
Species
Human

Source
HEK 293

Accession
P78324

Gene ID
140885

Molecular Weight
50-55 kDa

AA Sequence
EEELQVIQPD KSVLVAAGET ATLRCTATSL IPVGPIQWFR GAGPGRELIY NQKEGHFPRV TTVSDLTKRN NMDFSIRIGN ITPADAGTYY CVKFRKGSPD DVEFKSGAGT ELSVRAKPSA PVVSGPAARA TPQHTVSFTC ESHGFSPRDI TLKWFKNGNE LSDFQTNVDP VGESVSYSIH STAKVVLTRE DVHSQVICEV AHVTLQGDPL RGTANLSETI RVPPTLEVTQ QPVRAENQVN VTCQVRKFYP QRLQLTWLEN GNVSRTETAS TVTENKDGTY NWMSWLLVNV SAHRDDVKLT CQVEHDGQPA VSKSHDLKVS AHPKEQGSNT AAENTGSNER HHHHHH

Biological Activity
2 µg/mL (100 µL/well) of immoblized recombinant human Signal regulatory protein alpha-His can bind human CD47-Fc with a linear range of 0.25-185 ng/mL.

Appearance
Lyophilized powder.

Formulation
Lyophilized after extensive dialysis against PBS, 5% trehalose and mannitol.

Endotoxin Level
<0.2 EU/μg, determined by LAL method.

Reconstitution
Reconstitute the lyophilized recombinant Human Signal regulatory protein alpha, His (HEK293-expressed) (rHuSignal regulatory protein α, His) to 100 µg/mL using ddH2O or diluted with PBS.

Storage & Stability
Lyophilized recombinant Human Signal regulatory protein alpha, His (HEK293-expressed) (rHuSignal regulatory protein α, His) is stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping
Room temperature in continental US; may vary elsewhere.

Background
Signal regulatory protein α (SIRPα) is a glycoprotein receptor that recruits and signals via the tyrosine phosphatases SHP-1 and SHP-2.The cytoplasmic domain of SIRPα contains four immunoreceptor tyrosine-based inhibition motifs (ITIMs), which upon phosphorylation recruit and activate SH2-domain-containing phosphotyrosine phosphatases (PTPase) SHP-1 and SHP-2. In macrophages SIRPα can negatively regulate the phagocytosis of host cells and the production of tumor necrosis factor alpha. SIRPα ligation induces macrophage NO production through the cooperative action of JAK/STAT and PI3-K/Rac1/NOX/H2O2 signaling pathways. It proposes that SIRPα may function as an inhibitory receptor[1].
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