FIG. 4.

Nucleotide sequence of the splice junction determined for MCMV m131/129. The intron sequences are displayed in lowercase type. Changes in the nucleotide and amino acid sequence from the published Smith strain are underlined; the cysteine residues conserved with cellular CC chemokines and the predicted initiating methionine residues for m131 and m129 are doubly underlined. The NotI site used for the insertion of the lacZ cassette and oligonucleotide pair is underscored by a dashed line. The predicted signal sequence and N-linked glycosylation sites (N-X-T/S, where X is any amino acid) are shown in italics.