PMID: 8952881Sep 1, 1996Paper

Fucosyltransferase genes are dispersed in the genome: FUT7 is located on 9q34.3 distal to D9S1830

Comptes rendus de l'Académie des sciences. Série III, Sciences de la vie
I Reguigne-ArnouldP Coullin

Abstract

Synthesis of A, B, H, Lewis and related histo-blood group antigens is catalyzed by different fucosyltransferases. Enzymatic acceptor specificity and tissue expression permit the definition of 2 types of alpha-2-fucosyltransferases and 5 types of alpha-3-fucosyltransferases encoded by specific genes registered as FUT1 to FUT7. We have previously assigned FUT4 to 11q21, the cluster FUT1-FUT2 to 19q13.3 and the cluster FUT6-FUT3-FUT5 to 19p13.3. The last gene cloned (FUT7) encodes an alpha-3-fucosyltransferase expressed in leukocytes which synthesizes the sialyl Lĕ antigen, a selectin ligand. We have localized this gene by PCR assay using somatic cell hybrids, which retain rearrangements of chromosome 9 characterized in respect with the genetic microsatellite map, and then by screening a cosmid library. We assign FUT7 to chromosome band 9q34.3 telomeric to D9S1830 and close to the genes ABC2 and C8G.

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