%0 Journal Article %A Baczko, Knut %A Brinckmann, Ute %A Pardowitz, Iancu %A Rima, Bert K. %A ter Meulen, Volker %T Nucleotide sequence of the genes encoding the matrix protein of two wild-type measles virus strains %D 1991 %J Journal of General Virology, %V 72 %N 9 %P 2279-2282 %@ 1465-2099 %R https://doi.org/10.1099/0022-1317-72-9-2279 %I Microbiology Society, %X The nucleotide sequences of the matrix protein (M) genes of two wild-type measles virus (MV) isolates (JM and CM) have been determined and shown to differ in 56 positions; 31 of these differences are located in the non-coding region and 25 in the coding region of the gene. Most (80%) of the mutations in the coding region are changes to the third base of a codon. A maximum parsimony analysis of the available M gene nucleotide sequences allowed the construction of a tree with at least three lineages or subtypes. One wild-type strain (JM) was very similar to a subacute sclerosing panencephalitis virus strain (case B); the second wild-type strain, CM, showed nucleotide sequence similarity with MV from a case of measles inclusion body encephalitis. Both wild-type virus sequences are distinct from those so far determined for vaccine strains. %U https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-72-9-2279