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The role of lactoferrin in the gastrointestinal tract

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Recent Developments in Infant Nutrition

Part of the book series: Tenth Nutricia Symposium ((NUSY,volume 9))

Abstract

Lactoferrin is an iron-binding glycoprotein that consists of a single polypeptide chain with a molecular weight of 78 kDa. It is the second most abundant protein in human milk (~ 1g/l) (1,2) and is found in most exocrine secretions including tears, nasal secretions, saliva, intestinal mucus and genital secretions (3–5). The protein also is expressed and secreted by the secondary granules of polymorphonuclear neutrophils (6). The polypeptide structure of lactoferrin comprises two homologous domains that appear to have arisen by intragenic duplication (7). The crystal structure of the protein has been resolved (8,9) and it has been shown that each domain binds one ferric and one carbonate anion. In addition, each domain contains one glycosylated site to which N-linked glycan residues are attached (10).

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Abbreviations

LPS:

lipopolysaccharides

nLF:

native human lactoferrin

rLF:

recombinant human lactoferrin

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© 1996 Kluwer Academic Publishers

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Conneely, O.M., Ward, P.P., Zhou, X., Wagner, S. (1996). The role of lactoferrin in the gastrointestinal tract. In: Bindels, J.G., Goedhart, A.C., Visser, H.K.A. (eds) Recent Developments in Infant Nutrition. Tenth Nutricia Symposium, vol 9. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1790-3_25

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  • DOI: https://doi.org/10.1007/978-94-009-1790-3_25

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-7298-4

  • Online ISBN: 978-94-009-1790-3

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