Hemoglobin from the Antarctic fish Notothenia coriiceps neglecta. 1. Purification and characterisation
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L-Arginine Metabolism in Mitochondria Isolated From the Liver of Antarctic Fish Notothenia rossii and Notothenia neglecta
The arginase tissue distribution, the biochemical properties of the argininolytic system and the subcellular localization of the enzymes carbamoylphosphate synthetase, ornithinecarbamoyl transferase, glutamine synthetase and arginase in Antarctic fish, N. neglecta and N. rossii were the main aims of the present work. The tissue with highest argininolytic activity was the kidney distal portion a...
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We identified two antimicrobial peptides (AMPs) with similarity to moronecidin in Antarctic fishes. The characteristics of both AMPs were determined using moronecidin as a control. Moronecidin, which was first isolated from hybrid striped bass, is highly salt-resistant, and possesses broad-spectrum activity against various microbes. The moronecidin-like peptide from Notothenia coriiceps exhibit...
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Half of all vertebrate species share a series of chromosome fusions that preceded the teleost genome duplication (TGD), but we do not understand the causative evolutionary mechanisms. The "Robertsonian-translocation hypothesis" suggests a regular fusion of each ancestral acro- or telocentric chromosome to just one other by centromere fusions, thus halving the karyotype. An alternative "genome-s...
متن کاملOxygen consumption in an antarctic hemoglobin-free fish, Pagetopsis macropterus, and in three species of Notothenia.
1. The rate of oxygen consumption was determined in an Antarctic hemoglobin-free fish, Pagetopsis macropterus, and in three species of Notothenia, all of which have hemoglobin. In P. macropterus, the consumption at 0C ranged from 0.012 to 0.022 ml O2/g per hr, one-half to one-quarter of that in other fishes. In all cases, the rate was little affected by the oxygen tension in the water when it w...
متن کاملMolecular Differentiation by Pcr-rflp Technique Shows That Antarctic Fishes of the Genus
The taxonomy of Antarctic fishes has been predominantly based on morphological characteristics rather than on genetic criteria. A typical example is the Notothenia group, which includes N. coriiceps Richardson, 1844, N. neglecta Nybelin, 1951 and N. rossii Richardson, 1844. The Polymerase Chain Reaction and Restriction Fragment Length Polymorphism (PCR-RFLP) technique was used to determine whet...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1989
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1989.tb14603.x