Abstract
Mannose‐binding protein (MBP) belongs to the collectin subgroup of C‐type lectins with specificity for mannose and N‐acetylglucosamine sugars. We investigated whether rat MBPs isolated from serum (S‐MBP) and liver (L‐MBP) interact with phospholipids using antibody against each MBP. Both S‐ and L‐MBPs bound to phosphatidylinositol coated onto microtiter wells in a concentration‐ and a Ca2+‐dependent manner. L‐MBP also bound to phosphatidylglycerol and weakly to phosphatidylserine. MBPs interacted with liposomes composed of these lipids. S‐ and L‐MBPs bound to phosphatidylinositol 4‐monophosphate. L‐MBP also bound to cardiolipin. These results provide evidence for a novel type of ligand binding specificity for MBPs, and raise the possibility that phospholipids are ligands for collectins.
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Dates
Type | When |
---|---|
Created | 22 years, 4 months ago (April 23, 2003, 4:36 p.m.) |
Deposited | 1 year, 11 months ago (Sept. 16, 2023, 3:28 a.m.) |
Indexed | 4 weeks, 2 days ago (Aug. 2, 2025, 12:57 a.m.) |
Issued | 27 years, 11 months ago (Sept. 8, 1997) |
Published | 27 years, 11 months ago (Sept. 8, 1997) |
Published Online | 23 years, 2 months ago (June 18, 2002) |
Published Print | 27 years, 11 months ago (Sept. 8, 1997) |