NDLI: Ferritin from the spleen of the Antarctic teleost Trematomus bernacchii

Content Provider	Taylor & Francis Online
Author	Mignogna, Giuseppina Giangiacomo, Laura Chiancone, Emilia Cavallo, Stefano Stefanini, Simonetta
Abstract	Ferritin from the spleen of the Antarctic teleost Trematomus bernacchii is an iron storage protein composed of a single sub‐unit type whose amino N‐terminal sequence is blocked, as in L‐type mammalian and fish ferritin polypeptide chains. The partial amino acid sequence reveals a high similarity with the cDNA‐deduced sequence of the M chain (L‐type) of Salmo salar and the H1 chain of Salmo gairdneri ferritins. Like those of the latter sub‐units, the T. bernacchii chain contains the ferroxidase center, typical of mammalian H chains, and the glutamate residues of the iron micelle nucleation site, typical of mammalian L chains. It follows that, at variance with the mammalian ferritins, a single chain suffices to carry out both ferritin functions. In accordance with the sequence data, the T. bernacchii ferritin homopolymer is endowed with a high rate of iron oxidation and a high iron accumulation capacity.
Starting Page	53
Ending Page	56
Page Count	4
File Format	PDF HTM / HTML
ISSN	11250003 17485851
DOI	10.1080/11250000009356356
Journal	The European Zoological Journal
Volume Number	67
Issue Number	sup1
Language	English
Publisher	Taylor & Francis Group
Publisher Date	2009-01-28
Access Restriction	Open
Subject Keyword	Antarctic fish ferritin T. bernacchii ferritin Amino acid sequence Iron incorporation
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology

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