Mol Cells 2001 Apr 30;112:226-30.

CDNA for an immune response gene encoding low molecular weight polypeptide from flounder, Paralichthys olivaceus.

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The cDNA for an immune response gene encoding the low molecular weight polypeptide (LMP7) was cloned and sequenced from a flounder (Paralichthys olivaceus) leukocyte cDNA library. The cDNA clone was 1,160 bp, and composed of an open reading frame of 822 bp that corresponded to a protein of 273 amino acid residues with a calculated mass of 30.5 kDa. The ScanProsite search indicated that the deduced amino acid sequence from the flounder LMP7 contains a proteasome beta-type subunit signature, which is well conserved during evolution. The sequence shares a high degree of identity with other LMP7 sequences varying from a 66% identity with zebra fish (Danio renio) to a 57% identity with the African clawed frog (Xenopus laevis), which was confirmed from a phylogenetic tree. A reverse transcription-polymerase chain reaction (RT-PCR) was used to determine tissue specificity, and the expression of LMP7 was detected from the liver, kidney, leukocyte, and spleen of the flounder.

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Species referenced: Xenopus laevis
Genes referenced: psmb8