학술논문

Human dopa decarboxylase: localization to human chromosome 7p11 and characterization of hepatic cDNAs.
Document Type
article
Source
Genomics. 13(2)
Subject
Liver
Hela Cells
Hybrid Cells
Chromosomes
Human
Pair 7
Animals
Humans
Cricetulus
Dopa Decarboxylase
DNA
Fluorescent Dyes
Blotting
Southern
Chromosome Mapping
Nucleic Acid Hybridization
Base Sequence
Genes
Molecular Sequence Data
Cricetinae
HeLa Cells
Genetics & Heredity
Genetics
Information Systems
Language
Abstract
We have cloned full-length DDC cDNAs from a human hepatoma cDNA library [DDC; dopa decarboxylase; aromatic-L-amino acid decarboxylase, EC 4.1.1.28]. The protein encoded by hepatoma cells is the same as that encoded by adrenal chromaffin derived pheochromocytoma cells, despite reported differences in biochemical properties. We have confirmed the location of the DDC gene to chromosome 7 using a new panel of somatic cell hybrids, and we have localized the gene to band p11 on chromosome 7 by fluorescent in situ hybridization. The human gene retains 65% amino acid identity with Drosophila DDC (Accession No. X04426) and considerable structural similarity with other enzymes (F.R. Jackson, 1990, J. Mol. Evol. 31:325-329, and references therein).