Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2001-12-12
pubmed:abstractText
In the classical form of 21-hydroxylase deficiency, CYP21- affected genes either carry mutations present in the CYP21P pseudogene (microconversions) or bear a chimeric gene that replaces the active gene as a result of large conversion or deletion mutational events. Previous genotyping of 41 Brazilian patients revealed 64% microconversion, whereas deletions and large gene conversions accounted for up to 21% of the molecular defect. The present paper describes a new mutation disclosed by sequencing an entire gene in which no pseudogene-originated mutation had been found. The patient with the classical form of 21-hydroxylase deficiency is the daughter of a consanguineous marriage, and she is homozygous for a novel frameshift H28+C within exon 1. The mutation causes a stop codon at amino acid 78. Both parents are heterozygous for the mutation as confirmed by allele-specific oligonucleotide PCR. The H28+C is not present in the published CYP21P sequences and is likely to result in an enzyme with no activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5877-80
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
H28+C insertion in the CYP21 gene: a novel frameshift mutation in a Brazilian patient with the classical form of 21-hydroxylase deficiency.
pubmed:affiliation
Centro de Biologia Molecular e Engenharia Genética, Universidade Estadual de Campinas, São Paulo, Brazil.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't