Abstract:
:Human mannose binding protein (MBP) is a C-type serum lectin involved in first-line host defense against a variety of bacterial, fungal and viral pathogens. Recently an association was found between low levels of serum MBP and an increased frequency of recurrent infections in infants. A particular genotype, in which glycine is substituted by aspartic acid at codon 54 of MBP in the fifth collagen repeat, shows apparent concordance with the clinical phenotype. We report, however, that this genotype occurs in 5% of the population and encodes a functional protein. Our results indicate that the Gly54Asp allele does not account for a deficiency state, but instead suggest that MBP may have two predominant allelic forms that have overlapping function and differ only in their ability to activate the classical pathway of complement.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Super M,Gillies SD,Foley S,Sastry K,Schweinle JE,Silverman VJ,Ezekowitz RAdoi
10.1038/ng0992-50keywords:
subject
Has Abstractpub_date
1992-09-01 00:00:00pages
50-5issue
1eissn
1061-4036issn
1546-1718journal_volume
2pub_type
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