FIG. 1.

Primary structures and expression levels of JIP3 and JIP4. (A) Schematic representation of the domain structures of JIP3 and JIP4. We have previously reported the primary sequence of JIP3 (GenBank accession numbers AF178636 and AF178637) (13). We now report the primary sequence of JIP4 (GenBank accession number AY823270). TM, transmembrane. (B) Northern blot analysis of 2 μg of poly(A)⁺ RNA isolated from several murine tissues. The blot was probed with double-stranded probes derived from JIP3, JIP4, and β-actin. The migration of RNA standards is indicated on the left.