title: Identification and characterization of a fish natural resistance-associated macrophage protein (NRAMP) cDNA.
abstract: The mouse Lsh/Ity/Bcg locus regulates natural resistance to intracellular pathogens, and the Nramp1 gene was isolated as its candidate. Nramp is part of a small family of at least two genes, Nramp1 and Nramp2. In the present study, a full-length cDNA for carp NRAMP has been isolated and characterized. Nucleotide and predicted amino acid sequence analysis indicate that the carp NRAMP encodes a 548 amino acid membrane protein with 12 putative transmembrane domains, two N-linked glycosylation sites, and an evolutionarily conserved consensus transport motif. The peptide sequence identity among carp and human NRAMP2 is 78%, and 65% with human NRAMP1. Reverse transcription-polymerase chain reaction revealed that carp NRAMP is ubiquitously expressed. Phylogenetic analysis, using neighbor-joining, showed that the carp NRAMP protein clustered together with mammalian NRAMP2 proteins.
authors.affiliation: Cell Biology and Immunology Group, Wageningen Institute of Animal Sciences, Wageningen Agricultural University, P.O. Box 338, 6700 AH Wageningen, The Netherlands.
authors.forename: J P
authors.initials: JP
authors.lastname: Saeij
authors.forename: G F
authors.initials: GF
authors.lastname: Wiegertjes
authors.forename: R J
authors.initials: RJ
authors.lastname: Stet
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002347:Carps / Q000235:genetics* / Q000276:immunology; D002352:Carrier Proteins / Q000145:classification / Q000235:genetics*; D027682:Cation Transport Proteins; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics; D019143:Evolution, Molecular; D033862:Iron-Binding Proteins; D008264:Macrophages / Q000276:immunology*; D008565:Membrane Proteins / Q000145:classification / Q000235:genetics*; D008958:Models, Molecular; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D000099173:Natural Resistance-associated Macrophage Protein 1; D000099236:Solute Carrier Family 11, Member 2
chemical_list: D002352:Carrier Proteins; D027682:Cation Transport Proteins; D018076:DNA, Complementary; D033862:Iron-Binding Proteins; D008565:Membrane Proteins; D000099173:Natural Resistance-associated Macrophage Protein 1; D000099236:Solute Carrier Family 11, Member 2