Direct cDNA sequencing was performed on asymmetrically amplified transcripts from the porphobilinogen deaminase (PBG-D) gene of thirteen unrelated individuals with acute intermittent porphyria. Four different mutations and a polymorphic site were detected in exon 12 of the gene, four being the resul
Acute intermittent porphyria caused by a G to C mutation in exon 12 of the porphobilinogen deaminase gene that results in exon skipping
โ Scribed by Makoto Daimon; Keiichi Yamatani; Masahiko Igarashi; Norio Fukase; Atsushi Ogawa; Makoto Tominaga; Hideo Sasaki
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 876 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0340-6717
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โฆ Synopsis
Genomic DNA from a patient with acute intermittent porphyria were analyzed by the polymerase chain reaction (PCR)-direct sequencing method. The patient was heterozygote for a point mutation G to C at the last position of exon 12 of the porphobilinogen deaminase (PBG-D) gene. Analysis of the eDNA fragments amplified by PCR revealed that the patient has the abnormal PBG-D mRNA, which does not have exon 12 and exists in an approximately equal amount to the normal mRNA.
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A mutation of the porphobilinogen (PBG) deaminase gene that produces the cross-reacting immunological material (CRIM)-negative type of acute intermittent porphyria (AIP) has been identified in one of 43 unrelated patients with this form of the disorder. The mutation is a C--~T transition that abolis
A single base insertion of C in exon 15 of the porphobilinogen deaminase (PBG-D) gene was observed in a patient with acute intermittent porphyria (AIP) by polymerase chain reaction (PCR)-direct sequencing analysis. The insertion locates between positions -22 and -21 from the translation termination
Single-strand conformation polymorphism analysis was used to screen all 15 exons of the porphobilinogen deaminase gene from 13 patients with acute intermittent porphyria. Unique banding patterns in two amplified gene fragments, one containing exon 9 and another containing exon 10, were further inves
A sister and brother with severe porphobilinogen (PBG) deaminase deficiency are described. Each of their parents carries a different mutation for acute intermittent porphyria and the children are homozygous for the PBG-deaminase deficiency that causes this disorder. Both are compound heterozygotes f
Direct cDNA sequencing has been performed on asymmetrically amplified transcripts from the human porphobilinogen deaminase gene. Lymphocytes from 30 patients with acute intermittent porphyria were the source of mRNA; of the seven separate point mutations detected, three were silent, whereas four res