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Recombinant Human Tyrosine-protein phosphatase non-receptor type substrate 1 (SIRPA), partial (Active)

Recombinant Human Tyrosine-protein phosphatase non-receptor type substrate 1 (SIRPA), partial (Active)

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Code	CSB-AP005271HU
Abbreviation	Recombinant Human SIRPA protein, partial (Active)
MSDS	MSDS Datasheet
Size	$136
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Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details
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Product Details

Purity

Greater than 95% as determined by SDS-PAGE.

Endotoxin

Less than 1.0 EU/μg as determined by LAL method.

Activity

Loaded Anti-Human SIRPA mAb-Fc on Protein A Biosensor, can bind Human SIRPA-His with an affinity constant of 10.1 nM as determined in BLI assay.

Target Names

SIRPA

Uniprot No.

CAA71403.1

Research Area

Cardiovascular

Alternative Names

Signal regulatory protein alpha type 1; Bit; Brain Ig like molecule with tyrosine based activation motifs; Brain Ig-like molecule with tyrosine-based activation motifs; Brain immunoglobulin like molecule with tyrosine based activation motifs; CD172 antigen like family member A; CD172 antigen-like family member A; CD172a; CD172a antigen; Inhibitory receptor SHPS-1; Macrophage fusion receptor; MFR; MYD 1; Myd 1 antigen; MyD-1 antigen; p84; Protein tyrosine phosphatase non receptor type substrate 1; PTPNS1; SHP substrate 1; SHPS-1; SHPS1; SHPS1_HUMAN; Signal regulatory protein alpha 2; Signal regulatory protein alpha 3; Signal regulatory protein alpha; Signal regulatory protein alpha type 2; Signal-regulatory protein alpha-1; Signal-regulatory protein alpha-2; Signal-regulatory protein alpha-3; SIRP; Sirp-alpha-1; Sirp-alpha-2; Sirp-alpha-3; SIRPA; SIRPalpha; SIRPalpha1; SIRPalpha2; SIRPalpha3; Tyrosine phosphatase SHP substrate 1; Tyrosine protein phosphatase non receptor type substrate 1; Tyrosine-protein phosphatase non-receptor type substrate 1

Species

Homo sapiens (Human)

Source

Mammalian cell

Expression Region

31-370aa

Complete Sequence

EEELQVIQPDKSVSVAAGESAILHCTVTSLIPVGPIQWFRGAGPARELIYNQKEGHFPRVTTVSESTKRENMDFSISISNITPADAGTYYCVKFRKGSPDTEFKSGAGTELSVRAKPSAPVVSGPAARATPQHTVSFTCESHGFSPRDITLKWFKNGNELSDFQTNVDPVGESVSYSIHSTAKVVLTREDVHSQVICEVAHVTLQGDPLRGTANLSETIRVPPTLEVTQQPVRAENQVNVTCQVRKFYPQRLQLTWLENGNVSRTETASTVTENKDGTYNWMSWLLVNVSAHRDDVKLTCQVEHDGQPAVSKSHDLKVSAHPKEQGSNTAAENTGSNERN

Mol. Weight

38.31 kDa

Protein Length

Partial

Tag Info

C-terminal 6xHis-tagged

Form

Liquid or Lyophilized powder

Buffer

Lyophilized from a 0.2 μm filtered 1xPBS, pH 7.4.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.

Datasheet & COA

Please contact us to get it.

Description

SIRPα serves as the critical receptor for CD47 in the "don't eat me" signaling axis, making it a high-value target in immuno-oncology checkpoint research and therapeutic antibody development. This recombinant human SIRPα construct spans the extracellular IgV and IgC domains (aa 31–370), providing complete ligand-binding architecture produced in mammalian cells to ensure native glycosylation and proper disulfide-mediated folding. BLI validation demonstrates a KD of 10.1 nM against an anti-SIRPα mAb-Fc, confirming conformational integrity that supports use in antibody epitope mapping, competitive blocking assays, CD47–SIRPα interaction studies by SPR or BLI, and biologic inhibitor screening campaigns. The C-terminal His-tag enables oriented immobilization on biosensor surfaces, while purity exceeding 95% and endotoxin levels below 1.0 EU/μg satisfy the criteria typical for cell-based phagocytosis assays and functional checkpoint blockade experiments.