Recombinant Human SIGLEC5 Protein

• Background:

  SIGLEC5 contains 2 Ig-like C2-type (immunoglobulin-like) domains and 1 Ig-like V-type (immunoglobulin-like) domain. It belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. SIGLEC5 is expressed by monocytic/myeloid lineage cells. It is found at high levels in peripheral blood leukocytes; spleen; bone marrow and at lower levels in lymph node; lung; appendix; placenta; pancreas and thymus. It is also expressed by monocytes and neutrophils but absent from leukemic cell lines representing early stages of myelomonocytic differentiation. SIGLEC5 is a putative adhesion molecule that mediates sialic-acid dependent binding to cells. It binds equally to alpha-2;3-linked and alpha-2;6-linked sialic acid. The sialic acid recognition site may be masked by cis interactions with sialic acids on the same cell surface.

• Synonyms:

  CD170; CD33 antigen-like 2; CD33L2; OB-BP2; OBBP; OBBP2; Obesity-binding protein 2; SIGLEC-5; SIGLEC5; Sialic acid-binding Ig-like lectin 5; Siglec-5

• UniProt:

  O15389

• Accession Number:

  O15389

• Expression System:

  HEK293 Cells

• Tag:

  None

• Sequence:

  Met 1-Thr 434

• Field of Research:

  Immunology

• Endotoxin:

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

• Purity:

  > 85 % as determined by reducing SDS-PAGE.

• Bioactivity:

  Not validated for activity

• Reconstitution:

  Please refer to the printed manual for detailed information.

• Shipping Conditions:

  This product is provided as lyophilized powder which is shipped with ice packs.

• Storage Conditions:

  Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

• Calculated Molecular Weight:

  47.2 kDa

• Observed Molecular Weight:

  67 kDa

• Formulation:

  Lyophilized from sterile PBS, pH 7.4
  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 printed manual.

• Species:

  Human