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Symmetric and asymmetric tetramers, due to multiple α- and β-globin chains, account for the hemoglobin polymorphism of the Italian catfish (Ictalurus sp.)

Masala, Bruno Lucio and Manca, Laura and Callegarini, Carlo Alberto (1992) Symmetric and asymmetric tetramers, due to multiple α- and β-globin chains, account for the hemoglobin polymorphism of the Italian catfish (Ictalurus sp.). Comparative Biochemistry and Physiology. Part B: Biochemistry and Molecular Biology, Vol. 102 (4), p. 779-783. ISSN 1096-4959. Article.

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DOI: 10.1016/0305-0491(92)90079-7

Abstract

1. 1. The hemoglobin (Hb) polymorphism of the Italian catfish (Ictalurus sp.) was investigated by means of isoelectric focusing of Hb and of electrophoresis of globin chains.
2. 2. Multiple chains, due to allelism and non-allelism at the level of both α- and β-globin loci, were observed in the AA and BB Hb phenotypes.
3. 3. Isolated Hb tetramers consisted of the usual doublets of α- and β-globin chains or of stable combinations of different α- and different β-chains (asymmetric tetramers). This evidence explains the notable Hb multiplicity of this species.
4. 4. Hypotheses are advanced on the possible number, and chromosomal organization, of globin genes of the A and B Hb haplotypes.

Item Type:Article
ID Code:3076
Status:Published
Refereed:Yes
Uncontrolled Keywords:Globin chain, hemaglobin polymorphism Italian catfish, Hb haplotypes
Subjects:Area 05 - Scienze biologiche > BIO/10 Biochimica
Area 05 - Scienze biologiche > BIO/06 Anatomia comparata e citologia
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze fisiologiche, biochimiche e cellulari
001 Università di Sassari > 01 Dipartimenti > Zoologia e genetica evoluzionistica
Publisher:Elsevier
ISSN:1096-4959
Additional Information:Pubblicato online il 3 febbraio 2003.
Deposited On:01 Oct 2009 11:00

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