Abstract
Four new folate-sensitive fragile sites are documented at 6p23, 9p21, 9q32, and 11q23. These have all been shown to be heritable except for the one at 9p21, which has been seen only in a single individual. As with the other autosomal fragile sites, these appear to be innocuous in heterozygotes.
MeSH Terms
Child
Child, Preschool
Chromosome Fragile Sites
Chromosome Fragility
Chromosomes, Human/drug effects
Chromosomes, Human, 6-12 and X
Culture Media
Dose-Response Relationship, Drug
Female
Folic Acid/pharmacology
Humans
Infant, Newborn
Karyotyping
Male
Pedigree
Thymidine/pharmacology
Chemicals
Culture Media
Folic Acid
Thymidine
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Sutherland G R
Jacky P B
Baker E
Manuel A
References (9)
9 references, click to expand
-
Heritable fragile sites on human chromosomes I. Factors affecting expression in lymphocyte culture.
Am J Hum Genet. 1979 Mar;31(2):125-35
PMID: 36752
-
Heritable fragile sites on human chromosomes II. Distribution, phenotypic effects, and cytogenetics.
Am J Hum Genet. 1979 Mar;31(2):136-48
PMID: 453198
-
FUdR induction of the X chromosome fragile site: evidence for the mechanism of folic acid and thymidine inhibition.
Am J Hum Genet. 1981 Mar;33(2):234-42
PMID: 6452060
-
Heritable fragile sites on human chromosomes. VI. Characterization of the fragile site at 12q13.
Hum Genet. 1981;57(2):217-9
PMID: 7194847
-
Heritable fragile sites on human chromosomes. VII. Children homozygous for the BrdU-requiring fra(10)(q25) are phenotypically normal.
Am J Hum Genet. 1981 Nov;33(6):946-9
PMID: 7325157
-
5-Fluoro-2'-deoxyuridine induction of the fragile site on Xq28 associated with X linked mental retardation.
J Med Genet. 1981 Oct;18(5):374-6
PMID: 6460104
-
Heritable fragile sites on human chromosomes. VIII. Preliminary population cytogenetic data on the folic-acid-sensitive fragile sites.
Am J Hum Genet. 1982 May;34(3):452-8
PMID: 7081222
-
[Genetic aspects of autosomal fragile sites. Apropos of 40 Cases].
J Genet Hum. 1982 Oct;30(3):183-97
PMID: 7153767
-
The fragile X chromosome.
Int Rev Cytol. 1983;81:107-43
PMID: 6347931