Fam83h is associated with intracellular vesicles and ADHCAI.
Fam83h is associated with intracellular vesicles and ADHCAI.
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DOI:
10.1177/0022034509349454
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发表时间:
2009-11
影响因子:
7.6
通讯作者:
Hu JC
中科院分区:
文献类型:
--
作者:
Ding Y;Estrella MR;Hu YY;Chan HL;Zhang HD;Kim JW;Simmer JP;Hu JC
Defects in FAM83H on human chromosome 8q24.3 cause autosomal dominant hypocalcified amelogenesis imperfecta (ADHCAI). FAM83H does not encode a recognizable signal peptide, so we predicted that the Fam83h protein functions within the cell. We tested this hypothesis by constituatively expressing mouse Fam83h with green fluorescent protein (GFP) fused to its C-terminus in HEK293 and HeLa cell lines. Green fluorescent signal from the Fam83h-GFP fusion protein was associated with perinuclear vesicles usually in the vicinity of the Golgi apparatus. No signal was observed within the nucleus. In addition, we identified FAM83H nonsense mutations in Hispanic (C1330C>T; p.Q444X) and Caucasian (c.1192C>T; p.Q398X) families with ADHCAI. We conclude that Fam83h localizes in the intracellular environment, is associated with vesicles, and plays an important role in dental enamel formation. FAM83H is the first gene involved in the etiology of amelogenesis imperfecta (AI) that does not encode a secreted protein.
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影响因子:
7.6
作者:
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通讯作者:
Hart TC
影响因子:
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