Purity ~90% (SDS-PAGE). SIGLEC5, also known as sialic acid-binding Ig-like lectin 5, belongs to immunoglobulin superfamily and SIGLEC family. This protein is composed of 2 Ig-like C2-type domains and 1 Ig-like V-type domain. Also, it is expressed by monocytic/myeloid lineage cells. It is found at high levels in peripheral blood leukocytes, spleen, and at lower levels in lymph node, appendix, pancreas, lung, and thymus. Source: Recombinant protein corresponding to aa17-441 from human SIGLEC5, fused to hIgG-His-Tag at C-terminal, expressed in insect cell. Molecular Weight: ~74.2kD (667aa), 70-100kD (SDS-PAGE under reducing conditions.) Endotoxin: <1EU/1ug (determined by LAL method) AA