Biotinylated Human Siglec-5/CD170 Protein (Primary Amine Labeling) (SIG-HM205B)

  • Express System: HEK293
  • Product Tag: C-hFc
  • Purity: > 95% as determined by Tris-Bis PAGE
  • Biotinylated: yes
  • Amino Acid Range: Glu17-Thr434

Catalog: SIG-HM205B


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Product Description Recombinant Biotinylated Human Siglec-5/CD170 Protein is expressed from HEK293 with hFc tag at the C-Terminus.It contains Glu17-Thr434.

Product Background

Group B Streptococcus (GBS) causes invasive infections in human newborns. the GBS β-protein attenuates innate immune responses by binding to sialic acid-binding immunoglobulin-like lectin 5 (Siglec-5), an inhibitory receptor on phagocytes.the polymorphism could influence the risk of prematurity among human fetuses of mothers colonized with GBS. This first functionally proven example of a paired receptor system in the Siglec family has multiple implications for regulation of host immunity.

Product Category

Recombinant Protein


Synonyms CD170; CD33 antigen-like 2; CD33L2; OBBP2; Siglec5; SIGLEC5; OB-BP2



Amino Acid Range

Molecular Weight The protein has a predicted MW of 73.1 kDa. Due to glycosylation, the protein migrates to 90-115 kDa based on Tris-Bis PAGE result.

Product Tag


Express System

Purity > 95% as determined by Tris-Bis PAGE
Endotoxin Less than 1EU per ug by the LAL method.
Form Lyophilized
Shipping Shipped at ambient temperature.
Formulation Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Biotinylated Human Siglec-5 on Tris-Bis PAGE under reduced conditions. The purity is greater than 95%.

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