Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki
Pagothenia borchgrevinki , has a higher haemoglobin concentration than other Antarctic notothenioids and the high oxygen capacity may correlate with the relatively active mode of life of this fish. The fish has five haemoglobins (Hb C, Hb 0, Hb 1, Hb 2 and Hb 3) with Hb 1 accounting for 70–80% of th...
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crwiley:10.1111/j.1095-8649.2000.tb02242.x 2024-06-02T07:58:29+00:00 Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki Riccio, A. Tamburrini, M. Carratore, V. Prisco, G. di 2000 http://dx.doi.org/10.1111/j.1095-8649.2000.tb02242.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02242.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02242.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 57, issue sA, page 20-32 ISSN 0022-1112 1095-8649 journal-article 2000 crwiley https://doi.org/10.1111/j.1095-8649.2000.tb02242.x 2024-05-03T10:42:41Z Pagothenia borchgrevinki , has a higher haemoglobin concentration than other Antarctic notothenioids and the high oxygen capacity may correlate with the relatively active mode of life of this fish. The fish has five haemoglobins (Hb C, Hb 0, Hb 1, Hb 2 and Hb 3) with Hb 1 accounting for 70–80% of the total, and Hb C being present in trace amounts. Hb 1 and Hb 2 are functionally similar in terms of Bohr and Root effects. Hb 3 has a weaker Bohr effect than Hb 1 and Hb 2, and the Root effect is similar to that of Hb 1. Hb 0 has a strong Bohr effect and the Root effect is enhanced to a larger extent by the physiological effectors chlorides and phosphates than that of the other components with the exception of Hb C. The heats of oxygenation are lower than those of temperate fish haemoglobins. Temperature variations may have a different effect on the functional properties of each haemoglobin, and chloride and phosphates may play an important role in the conformational change between the oxy and deoxy structures. The complete amino acid sequences of Hb 1 and Hb 0, as well as partial N‐terminal or internal sequences of the other haemoglobins, have been established. The high multiplicity of functionally distinct haemoglobins indicates that P. borchgrevinki , has a specialized haemoglobin system. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Antarctic Journal of Fish Biology 57 sa 20 32 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Pagothenia borchgrevinki , has a higher haemoglobin concentration than other Antarctic notothenioids and the high oxygen capacity may correlate with the relatively active mode of life of this fish. The fish has five haemoglobins (Hb C, Hb 0, Hb 1, Hb 2 and Hb 3) with Hb 1 accounting for 70–80% of the total, and Hb C being present in trace amounts. Hb 1 and Hb 2 are functionally similar in terms of Bohr and Root effects. Hb 3 has a weaker Bohr effect than Hb 1 and Hb 2, and the Root effect is similar to that of Hb 1. Hb 0 has a strong Bohr effect and the Root effect is enhanced to a larger extent by the physiological effectors chlorides and phosphates than that of the other components with the exception of Hb C. The heats of oxygenation are lower than those of temperate fish haemoglobins. Temperature variations may have a different effect on the functional properties of each haemoglobin, and chloride and phosphates may play an important role in the conformational change between the oxy and deoxy structures. The complete amino acid sequences of Hb 1 and Hb 0, as well as partial N‐terminal or internal sequences of the other haemoglobins, have been established. The high multiplicity of functionally distinct haemoglobins indicates that P. borchgrevinki , has a specialized haemoglobin system. |
format |
Article in Journal/Newspaper |
author |
Riccio, A. Tamburrini, M. Carratore, V. Prisco, G. di |
spellingShingle |
Riccio, A. Tamburrini, M. Carratore, V. Prisco, G. di Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki |
author_facet |
Riccio, A. Tamburrini, M. Carratore, V. Prisco, G. di |
author_sort |
Riccio, A. |
title |
Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki |
title_short |
Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki |
title_full |
Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki |
title_fullStr |
Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki |
title_full_unstemmed |
Functionally distinct haemoglobins of the cryopelagic Antarctic teleost Pagothenia borchgrevinki |
title_sort |
functionally distinct haemoglobins of the cryopelagic antarctic teleost pagothenia borchgrevinki |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2000.tb02242.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02242.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02242.x |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Journal of Fish Biology volume 57, issue sA, page 20-32 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2000.tb02242.x |
container_title |
Journal of Fish Biology |
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57 |
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sa |
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20 |
op_container_end_page |
32 |
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1800741842411585536 |