Abstract
Complementary DNA clones coding for the catalytic unit of the enzyme glucose-6-phosphatase (G6Pase) were obtained from Haplochromis nubilus and Haplochromis xenognathus, two cichlid fish species from Lake Victoria. The translated sequence of these two cDNAs identifies a polypeptide consisting of 352 amino acid residues and showing a 54.4% similarity to the human form of G6Pase. The amino acid sequences of the two fish species are identical. The comparison of the fish amino acid sequence with the corresponding sequences of rat, mouse, and human G6Pase revealed that the amino acid residues, which are involved in G6Pase catalysis in humans, are also conserved in fish G6Pase. Northern blot analysis showed that G6Pase is expressed at the same level in 6- and 10-day-old fish. A three base pair insertion/deletion polymorphism was found in the 3′-untranslated region of the fish G6Pase gene. The polymorphism will be a useful marker in a phylogenetic study of Lake Victoria cichlids.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 25-29 |
| Number of pages | 5 |
| Journal | Mitochondrial DNA |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| State | Published - Dec 1 1999 |
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All Science Journal Classification (ASJC) codes
- Molecular Biology
- Genetics
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Isolation and sequencing of cDNA clones coding for the catalytic unit of glucose-6-phosphatase from two haplochromine cichlid fishes. / Nagl, Sandra; Mayer, Werner E.; Klein, Jan.
In: Mitochondrial DNA, Vol. 10, No. 1, 01.12.1999, p. 25-29.Research output: Contribution to journal › Article
TY - JOUR
T1 - Isolation and sequencing of cDNA clones coding for the catalytic unit of glucose-6-phosphatase from two haplochromine cichlid fishes
AU - Nagl, Sandra
AU - Mayer, Werner E.
AU - Klein, Jan
PY - 1999/12/1
Y1 - 1999/12/1
N2 - Complementary DNA clones coding for the catalytic unit of the enzyme glucose-6-phosphatase (G6Pase) were obtained from Haplochromis nubilus and Haplochromis xenognathus, two cichlid fish species from Lake Victoria. The translated sequence of these two cDNAs identifies a polypeptide consisting of 352 amino acid residues and showing a 54.4% similarity to the human form of G6Pase. The amino acid sequences of the two fish species are identical. The comparison of the fish amino acid sequence with the corresponding sequences of rat, mouse, and human G6Pase revealed that the amino acid residues, which are involved in G6Pase catalysis in humans, are also conserved in fish G6Pase. Northern blot analysis showed that G6Pase is expressed at the same level in 6- and 10-day-old fish. A three base pair insertion/deletion polymorphism was found in the 3′-untranslated region of the fish G6Pase gene. The polymorphism will be a useful marker in a phylogenetic study of Lake Victoria cichlids.
AB - Complementary DNA clones coding for the catalytic unit of the enzyme glucose-6-phosphatase (G6Pase) were obtained from Haplochromis nubilus and Haplochromis xenognathus, two cichlid fish species from Lake Victoria. The translated sequence of these two cDNAs identifies a polypeptide consisting of 352 amino acid residues and showing a 54.4% similarity to the human form of G6Pase. The amino acid sequences of the two fish species are identical. The comparison of the fish amino acid sequence with the corresponding sequences of rat, mouse, and human G6Pase revealed that the amino acid residues, which are involved in G6Pase catalysis in humans, are also conserved in fish G6Pase. Northern blot analysis showed that G6Pase is expressed at the same level in 6- and 10-day-old fish. A three base pair insertion/deletion polymorphism was found in the 3′-untranslated region of the fish G6Pase gene. The polymorphism will be a useful marker in a phylogenetic study of Lake Victoria cichlids.
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U2 - 10.3109/10425179909033932
DO - 10.3109/10425179909033932
M3 - Article
VL - 10
SP - 25
EP - 29
JO - DNA Sequence - Journal of DNA Sequencing and Mapping
JF - DNA Sequence - Journal of DNA Sequencing and Mapping
SN - 1940-1736
IS - 1
ER -