Human ameloblastin gene: genomic organization and mutation analysis in amelogenesis imperfecta patients.
Human ameloblastin gene: genomic organization and mutation analysis in amelogenesis imperfecta patients.
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人成釉细胞基因:成釉细胞不全患者的基因组组织和突变分析。
DOI:
10.1034/j.1600-0722.2001.00979.x
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
Forsman-Semb,K
中科院分区:
文献类型:
--
作者:
Mardh,CK;Backman,B;Simmons,D;Golovleva,I;Gu,TT;Holmgren,G;MacDougall,M;Forsman-Semb,K
A gene encoding the enamel protein ameloblastin(AMBN)was recently localized to a region on chromosome 4q21 containing a gene for the inherited enamel defect local hypoplastic amelogenesis imperfecta (AIH2). Ameloblastin protein is located at the Tomes processes of secretory ameloblasts and in the sheath space between rod‐interrod enamel, and theAMBNgene therefore represents a viable candidate gene for local hypoplastic amelogenesis imperfecta (AI). In this study, the genomic organization of humanAMBNwas characterized. The gene was shown to consist of 13 exons and 12 introns. An alternatively spliced 45 bp sequence was shown not to represent a separate exon and is most likely spliced by the use of a cryptic splice site. The finding that there were no recombinations between an intragenic microsatellite and AIH2 encouraged us to evaluate this gene's potential role as a candidate gene for local hypoplastic AI. Mutation screening was performed on all 13 exons in 20 families and 8 sporadic cases with 6 different forms of AI. DNA variants were found but none that was associated exclusively with local hypoplastic AI or any of the other variants of AI in the identified Swedish families. This study excludes the coding regions and the splice sites ofAMBNfrom a causative role in the pathogenesis of AIH2.
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影响因子:
3
作者:
Collier, PM;Sauk, JJ;Gibson, CW
通讯作者:
Gibson, CW
影响因子:
4.4
作者:
C. Kärrman;B. Bäckman;M. Dixon;G. Holmgren;K. Forsman
通讯作者:
K. Forsman
影响因子:
1.8
作者:
BACKMAN, B;HOLMGREN, G
通讯作者:
HOLMGREN, G
DOI:
--
发表时间:
1988
期刊:
Scandinavian journal of dental research
影响因子:
--
作者:
B. Bäckman
通讯作者:
B. Bäckman
影响因子:
1.9
作者:
Takashi Uchida;C. Murakami;K. Wakida;Naofumi Dohi;Yasuko Iwai;J. P. Simmer;M. Fukae;T. Satoda;Osamu Takahashi
通讯作者:
Osamu Takahashi