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Author Marszałek Kruk, Bożena Anna ♦ Wójcicki, Piotr ♦ Śmigiel, Robert ♦ Trzeciak, Wiesław H.
Source SpringerLink
Content type Text
Publisher Springer-Verlag
File Format PDF
Copyright Year ©2012
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Life sciences; biology
Subject Keyword TCOF1 ♦ Novel insertion ♦ Premature termination ♦ Treacher Collins syndrome ♦ Life Sciences ♦ Animal Genetics and Genomics ♦ Microbial Genetics and Genomics ♦ Plant Genetics & Genomics ♦ Human Genetics
Abstract Treacher Collins syndrome (TCS) is associated with an abnormal differentiation of the first and second pharyngeal arches during fetal development. This causes mostly craniofacial deformities, which require numerous corrective surgeries. TCS is an autosomal dominant disorder and it occurs in the general population at a frequency of 1 in 50,000 live births. The syndrome is caused by mutations in the TCOF1 gene, which encodes the serine/alanine-rich protein named Treacle. Over 120 mutations of the TCOF1 gene responsible for TCS have been described. About 70% of recognized mutations are deletions, which lead to a frame shift, formation of a termination codon, and shortening of the protein product of the gene. Herewith, a new heterozygotic insertion, c.484_668ins185bp, was described in two monozygotic twin sisters suffering from TCS. This mutation was absent in their father, brother, and uncle, indicating a de novo origin. The insertion causes a shift in the reading frame and premature termination of translation at 167 aa. The novel insertion is the longest ever found in the TCOF1 gene and the only one found among monozygotic twin sisters.
ISSN 12341983
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-03-14
Publisher Place Berlin, Heidelberg
e-ISSN 21903883
Journal Journal of Applied Genetics
Volume Number 53
Issue Number 3
Page Count 4
Starting Page 279
Ending Page 282


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Source: SpringerLink