期刊
GENE
卷 257, 期 1, 页码 109-117出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-1119(00)00383-8
关键词
gene family; genomic duplication; microtubules; pericentromeric region; pseudogene
This paper reports the characterization of the human tubulin tyrosine ligase-like 1 gene (TTLL1), which maps to the chromosome region 22q13.1 and has been partially duplicated on three other acrocentric chromosomes: 13, 15 and 21. We describe the complete cDNA, TTLL1a, coding for the putative 423 amino acid long TTLL1 and alternative transcripts coding for truncated TTLL1. Likely TTLL1a corresponds to the 1.8 kb transcript that was detected in a wide range of tissues and has a stronger expression in heart, brain and testis. A 4.8 kb transcript was found only in brain tissues. We present an interspecies sequence comparison, revealing three conserved domains, named TTLD1, TTLD2 and TTLD3, that are specific to the TTLs and TTL-like proteins. (C) 2000 Elsevier Science B.V. All rights reserved.
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