Alternative transcription and splicing of the human porphobilinogen deaminase gene
Journal Article
·
· Proc. Natl. Acad. Sci. U.S.A.; (United States)
Porphobilinogen deaminase is a cytosolic enzyme involved in the heme biosynthetic pathway. Two isoforms of PBGD, encoded by two mRNAs differing solely in their 5' end, are known: one is found in all cells and the other is present only in erythroid cells. The authors have previously shown that the human PBGD is encoded by a single gene and have now cloned and characterized this gene, which is split into 15 exons spread over 10 kilobases of DNA. They demonstrate that the two mRNAs arise from two overlapping transcription units. The first one (upstream) is active in all tissues and its promoter has some of the structural features of a housekeeping promoter; the second, located 3 kilobases downstream, is active only in erythroid cells and its promoter displays structural homologies with the ..beta..-globin gene promoters.
- Research Organization:
- Hopital Henri Mondor, Creteil (France)
- OSTI ID:
- 6470085
- Journal Information:
- Proc. Natl. Acad. Sci. U.S.A.; (United States), Journal Name: Proc. Natl. Acad. Sci. U.S.A.; (United States) Vol. 85:1; ISSN PNASA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550201* -- Biochemistry-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY FLUIDS
CELL DIFFERENTIATION
DAYS LIVING RADIOISOTOPES
DNA
DNA SEQUENCING
ENZYMES
ERYTHROCYTES
GENE REGULATION
GENES
GENETIC MAPPING
ISOTOPES
LIGHT NUCLEI
LYASES
MAPPING
MATERIALS
NUCLEI
NUCLEIC ACIDS
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
RADIOISOTOPES
RECOMBINANT DNA
STRUCTURAL CHEMICAL ANALYSIS
TRANSCRIPTION
59 BASIC BIOLOGICAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY FLUIDS
CELL DIFFERENTIATION
DAYS LIVING RADIOISOTOPES
DNA
DNA SEQUENCING
ENZYMES
ERYTHROCYTES
GENE REGULATION
GENES
GENETIC MAPPING
ISOTOPES
LIGHT NUCLEI
LYASES
MAPPING
MATERIALS
NUCLEI
NUCLEIC ACIDS
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
RADIOISOTOPES
RECOMBINANT DNA
STRUCTURAL CHEMICAL ANALYSIS
TRANSCRIPTION