Protein Construction: A DNA sequence encoding the human SIGLEC5 (O15389) (Met1-Thr 434) was expressed with six amino acids (LEVLFQ) at the C-terminus was expressed and purified.
Sequence: Met 1-Thr 434.
Fusion tag: .
Accession: O15389.
Purity: > 85 % as determined by reducing SDS-PAGE.
Endotoxin: < 1.0 EU per µg as determined by the LAL method.
Mol Mass: 47.2 kDa.
AP Mol Mass: 67 kDa.
Formulation: Lyophilized from sterile PBS, pH 7.4.
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.