Polymorphism of human haptoglobin and its clinical importance

Haptoglobin (Hp) is a plasma glycoprotein, the main biological function of which is to bind free hemoglobin (Hb) and prevent the loss of iron and subsequent kidney damage following intravascular hemolysis. Haptoglobin is also a positive acute-phase protein with immunomodulatory properties. In humans...

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Main Authors: Vânia Peretti de Albuquerque Wobeto, Tânia Regina Zaccariotto, Maria de Fátima Sonati
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2008-01-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400002
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author Vânia Peretti de Albuquerque Wobeto
Tânia Regina Zaccariotto
Maria de Fátima Sonati
author_facet Vânia Peretti de Albuquerque Wobeto
Tânia Regina Zaccariotto
Maria de Fátima Sonati
author_sort Vânia Peretti de Albuquerque Wobeto
collection DOAJ
description Haptoglobin (Hp) is a plasma glycoprotein, the main biological function of which is to bind free hemoglobin (Hb) and prevent the loss of iron and subsequent kidney damage following intravascular hemolysis. Haptoglobin is also a positive acute-phase protein with immunomodulatory properties. In humans, the HP locus is polymorphic, with two codominant alleles (HP1 and HP2) that yield three distinct genotypes/phenotypes (Hp1-1, Hp2-1 and Hp2-2). The corresponding proteins have structural and functional differences that may influence the susceptibility and/or outcome in several diseases. This article summarizes the available data on the structure and functions of Hp and the possible effects of Hp polymorphism in a number of important human disorders.
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spelling doaj.art-1431b70490d5407abeb6d315278161122022-12-21T18:38:39ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852008-01-0131360262010.1590/S1415-47572008000400002Polymorphism of human haptoglobin and its clinical importanceVânia Peretti de Albuquerque WobetoTânia Regina ZaccariottoMaria de Fátima SonatiHaptoglobin (Hp) is a plasma glycoprotein, the main biological function of which is to bind free hemoglobin (Hb) and prevent the loss of iron and subsequent kidney damage following intravascular hemolysis. Haptoglobin is also a positive acute-phase protein with immunomodulatory properties. In humans, the HP locus is polymorphic, with two codominant alleles (HP1 and HP2) that yield three distinct genotypes/phenotypes (Hp1-1, Hp2-1 and Hp2-2). The corresponding proteins have structural and functional differences that may influence the susceptibility and/or outcome in several diseases. This article summarizes the available data on the structure and functions of Hp and the possible effects of Hp polymorphism in a number of important human disorders.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400002haptoglobinhemoglobingenetic polymorphisms
spellingShingle Vânia Peretti de Albuquerque Wobeto
Tânia Regina Zaccariotto
Maria de Fátima Sonati
Polymorphism of human haptoglobin and its clinical importance
Genetics and Molecular Biology
haptoglobin
hemoglobin
genetic polymorphisms
title Polymorphism of human haptoglobin and its clinical importance
title_full Polymorphism of human haptoglobin and its clinical importance
title_fullStr Polymorphism of human haptoglobin and its clinical importance
title_full_unstemmed Polymorphism of human haptoglobin and its clinical importance
title_short Polymorphism of human haptoglobin and its clinical importance
title_sort polymorphism of human haptoglobin and its clinical importance
topic haptoglobin
hemoglobin
genetic polymorphisms
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400002
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