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. 2004 Sep;78(18):9592–9598. doi: 10.1128/JVI.78.18.9592-9598.2004

FIG. 3.

FIG. 3.

CA protein sequences of natural N-, B-, NR-, and NB-tropic MLV isolates. The predicted CA protein sequence of N-tropic AKV (6, 10, 19) is compared to those of nine other MLV CA proteins. AKR-L1 (24) and Gross virus (GenBank accession no. AY294332) are NR tropic; B-AKV (6, 10) and MCF1233 (47) are B tropic; and AKR-B2NB (11), Mo-MLV (46), R-MLV (25), and F-MLV (GenBank accession no. X02794) are NB tropic. Identities are indicated with dots, and differences are indicated with the single letter amino acid code. Bold characters indicate the primary Fv1 specificity determinants at position 110.