SIGLEC6 Protein, Human, Recombinant (hFc Tag)

Product Specifications

Background

SIGLEC6, also known as CD327, belongs to the immunoglobulin superfamily, SIGLEC (sialic acid binding Ig-like lectin) family. SIGLEC6 is a sialic acid recognizing protein expressed at high levels in placenta (cyto- and syncytiotrophoblastic cells) and at lower levels in spleen, peripheral blood leukocytes (predominantly B-cells) and small intestine. SIGLEC6 localizes in various compartments such as membrane fraction, extracellular region and so on. SIGLEC6 may show increasing expression human labor and following childbirth, it has been speculated that this expression helps to slow the tempo of human labor. Interestingly, expression of SIGLEC6 is further upregulated in pre-eclampsia, which appears to be a uniquely human disease.

Overview

A DNA sequence encoding the human SIGLEC6 (O43699-3) (Gln27-Val331) was expressed with the Fc region of human IgG1 at the C-terminus.

Synonyms

CD327 Protein, Human; CD33L Protein, Human; CD33L1 Protein, Human; CD33L2 Protein, Human; CDW327 Protein, Human; OBBP1 Protein, Human; SIGLEC6 Protein, Human

Gene Name

Sialic acid binding Ig like lectin 6

UniProt

O43699-3

Expression System

HEK293 Cells

Tag

C-hFc

Field of Research

ITIM/ITAM Immunoreceptors and Related Molecules

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 90 % as determined by SDS-PAGE.

Activity

At Leading Biology, the biological activity of a recombinant protein is routinely measured using a bioassay, e.g. chemotaxis or cell proliferation assay, enzyme assay, or a functional ELISA. When a recombinant protein is an enzyme, specific activity is derived from an enzymatic assay. Each enzyme is tested for potency by cleavage of a substrate. We are in the process of updating the biological activity data. If you have any questions regarding this update, please feel free to contact our technical support team.

Form

Lyophilized

Buffer

Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

Function

CD Molecule proteins, Immune Checkpoint Proteins, Biological Target proteins

Molecular Weight

The recombinant human SIGLEC6/Fc is a disulfide-linked homodimer. The reduced monomer comprises 546 amino acids and has a predicted molecular mass of 60.7 kDa. The apparent molecular mass of the protein is approximately 66-73 kDa in SDS-PAGE under reducing conditions.

Storage Conditions

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.