Heparan sulfate (HS) 2-O-sulfotransferase (2-OST) and C5-epimerase expression in brain and pectoral fin. A-C: Expression of HS 2-OST in a dorsal view of a 24 hr postfertilization (hpf) brain (A), a dorsal view of a 36 hpf brain (B), and a dorsal view of 48 hpf brain and pectoral fin (C). D-F: Expression of GlceA in a dorsal view of a 24 hpf brain (D), a dorsal view of a 36 hpf brain (E), and a dorsal view of a 48 hpf brain and pectoral fin (F). G-I: Expression of GlceB in a dorsal view of a 24 hpf brain (G), a dorsal view of a 36 hpf brain (H), and a dorsal view of 48 hpf brain and pectoral fin (I). The white arrowhead indicates expression in the pectoral fin; black arrowheads indicate lack of pectoral fin expression. E, eye; EL, eye lens; FB, forebrain; HB, hindbrain; MB, midbrain; MHB, midbrain-hindbrain boundary; OT, otic vesicle.
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