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(a) Comparison of nucleotide sequence and deduced amino acid sequence of the 5′ splice variants of TUB and HSU54644. Break in sequence denotes the intron/exon junction. (b) Comparison of mouse tub and human TUB, TULP1, and TULP2. ∗, Conserved identical amino acids; ~, conservative replacements. The alignments were produced with the computer program clustal w1.6 (13).
