emm53.6 (emm-cluster D4) subtype-determining sequence consists of bases 31-180 that encodes residues 1-50 of mature protein. emm53.6 from GAS isolate 153v.Sequence and information provided by Dr. Lenka Strakova, WHO Collaborating Center, Prague, Czech Republic. emm53.6.sds Length: 180 November 27, 2006 14:22 Type: N Check: 9282 .. 1 GGGTTAGCAA GCCAGACAGA AGTTAAGGCG AATAGAGCAG ACGACGCTAA 51 AAATGAAGTA CTAAGGGGGA ATCTTGTACG GGCTGAGCTT TGGTACCGTC 101 AAATACAAGA AAATGACCAA CTTAAATTGG AAAAGAAAGA GCTTGAGACT 151 GAGTTACAGG AAAAGGAACA AGAGGTAAAA