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  • Title: Comparison of the structure of the genes for outer membrane proteins P1 and P2 of Haemophilus influenzae type b.
    Author: Munson R, Grass S, Bailey C.
    Journal: Mol Immunol; 1991 Mar; 28(3):257-9. PubMed ID: 1673226.
    Abstract:
    Size and antigenic heterogeneity have been recognized in both outer membrane protein P1 and outer membrane protein P2 of Haemophilus influenzae type b. To determine the molecular basis for these differences, we have cloned and sequenced the structural genes for OMPs P1 and P2 from prototype isolates with the OMP subtypes 1H, 3L and 6U. The nucleotide and derived amino acid sequences of the P1 genes are characterized by three variable regions dispersed between highly conserved regions. The nucleic acid and derived amino acid sequences of the P2 genes are also highly conserved. The P2 genes from OMP subtype 1H and 3L isolates are identical. The sequence of the 6U gene differs by 13 nucleotides, resulting in 10 amino acid changes.
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