Abstract
E-SELECTIN is an inducible cell-adhesion molecule on endothelial cells, which mediates the binding of neutrophils and functions as a Ca(2+)-dependent lectin. We have recently identified a 150K glycoprotein as the major ligand for E-selectin on myeloid cells, using a recombinant antibody-like form of mouse E-selectin as an affinity probe. Here we report the isolation of a mouse complementary DNA for this E-selectin ligand (ESL-1). The predicted amino-acid sequence of ESL-1 is 94% identical (over 1,078 amino acids) to the recently identified chicken cysteine-rich fibroblast growth-factor receptor, except for a unique 70-amino-acid aminoterminal domain of mature ESL-1. Fucosylation of ESL-1 is imperative for affinity isolation with E-selectin-IgG. A fucosylated, recombinant antibody-like form of ESL-1, but not of L-selectin, supports adhesion of E-selectin-transfected Chinese hamster ovary cells. Antibodies against ESL-1 block the binding of mouse myeloid cells to E-selectin. ESL-1, with a structure essentially identical to that of a receptor, thus functions as a cell adhesion ligand of E-selectin.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Amino Acid Sequence
-
Animals
-
Base Sequence
-
CHO Cells
-
Cell Adhesion Molecules / metabolism*
-
Chickens
-
Cloning, Molecular
-
Cricetinae
-
DNA, Complementary
-
E-Selectin
-
Fucose / metabolism
-
Glycoproteins / chemistry
-
Glycoproteins / genetics
-
Glycoproteins / isolation & purification*
-
Glycoproteins / metabolism
-
Humans
-
Immunoglobulin G / genetics
-
Immunoglobulin G / metabolism
-
Ligands
-
Membrane Glycoproteins / genetics
-
Membrane Glycoproteins / isolation & purification*
-
Membrane Glycoproteins / metabolism
-
Mice
-
Molecular Sequence Data
-
Neutrophils / metabolism
-
Precipitin Tests
-
Protein Binding
-
Receptors, Fibroblast Growth Factor / chemistry*
-
Receptors, Fibroblast Growth Factor / genetics
-
Receptors, Fibroblast Growth Factor / isolation & purification*
-
Receptors, Fibroblast Growth Factor / metabolism
-
Receptors, Immunologic / genetics
-
Receptors, Immunologic / isolation & purification
-
Receptors, Immunologic / metabolism
-
Recombinant Fusion Proteins / genetics
-
Recombinant Fusion Proteins / metabolism
-
Sequence Homology, Amino Acid
-
Sialoglycoproteins
-
Transfection
Substances
-
Cell Adhesion Molecules
-
DNA, Complementary
-
E-Selectin
-
Glycoproteins
-
Immunoglobulin G
-
Ligands
-
Membrane Glycoproteins
-
Receptors, Fibroblast Growth Factor
-
Receptors, Immunologic
-
Recombinant Fusion Proteins
-
Sialoglycoproteins
-
cysteine-rich fibroblast growth factor receptor
-
Fucose
Associated data
-
GENBANK/U28811
-
GENBANK/X84037