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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

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Size:

10ug50ug500ug1mg

US$136

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Express system: Mammalian cell

Species: Homo sapiens (Human)

Tag Info: C-terminal 6xHis-tagged

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Target Background

Product Details

Abbreviation

Recombinant Human SIRPA protein, partial (Active)

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

Target Protein Sequence

EEELQVIQPDKSVSVAAGESAILHCTVTSLIPVGPIQWFRGAGPARELIYNQKEGHFPRVTTVSESTKRENMDFSISISNITPADAGTYYCVKFRKGSPDTEFKSGAGTELSVRAKPSAPVVSGPAARATPQHTVSFTCESHGFSPRDITLKWFKNGNELSDFQTNVDPVGESVSYSIHSTAKVVLTREDVHSQVICEVAHVTLQGDPLRGTANLSETIRVPPTLEVTQQPVRAENQVNVTCQVRKFYPQRLQLTWLENGNVSRTETASTVTENKDGTYNWMSWLLVNVSAHRDDVKLTCQVEHDGQPAVSKSHDLKVSAHPKEQGSNTAAENTGSNERN
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.

Mol. Weight

38.31 kDa

Protein Length

Partial

Tag Info

C-terminal 6xHis-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.

Buffer

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

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.

Troubleshooting and FAQs

Protein FAQs

Datasheet & COA

Please contact us to get it.

Images

(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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.