Sequencing emm-specific PCR products for routine and accurate typing of group A streptococci

J Clin Microbiol. 1996 Apr;34(4):953-8. doi: 10.1128/jcm.34.4.953-958.1996.

Abstract

Rapid sequence analysis of specific PCR products was used to accurately deduce emm types corresponding to the majority of the known group A streptococcal (GAS) M serotypes. The study involved 95 M type reference GAS strains and a survey of 74 recent clinical isolates. A high percentage of agreement between M type serology and the previously published 5' sequences of the emm genes of M type reference strains was noted. The 5' sequences for six established M protein genes--the emm-32, emm-34, emm-38, emm-40, emm-42, and emm-71 genes--were determined to supplement the existing emm sequence database. Rapid sequence analysis differentiated serologically M-nontypeable strains and was used to establish the probable.

Publication types

  • Comparative Study

MeSH terms

  • Amino Acid Sequence
  • Antigens, Bacterial*
  • Bacterial Outer Membrane Proteins*
  • Bacterial Proteins / genetics*
  • Bacterial Typing Techniques*
  • Carrier Proteins*
  • Databases, Factual
  • Evaluation Studies as Topic
  • Genes, Bacterial*
  • Humans
  • Molecular Sequence Data
  • Polymerase Chain Reaction / methods*
  • Reference Standards
  • Sequence Homology, Amino Acid
  • Serotyping
  • Streptococcus pyogenes / classification*
  • Streptococcus pyogenes / genetics*
  • Streptococcus pyogenes / isolation & purification

Substances

  • Antigens, Bacterial
  • Bacterial Outer Membrane Proteins
  • Bacterial Proteins
  • Carrier Proteins
  • streptococcal M protein

Associated data

  • GENBANK/M11338
  • GENBANK/M19031
  • GENBANK/M20374
  • GENBANK/S82057
  • GENBANK/U11595
  • GENBANK/U11932
  • GENBANK/U11934
  • GENBANK/U11935
  • GENBANK/U11937
  • GENBANK/U11938
  • GENBANK/U11940
  • GENBANK/U11941
  • GENBANK/U11942
  • GENBANK/U11943
  • GENBANK/U11944
  • GENBANK/U11945
  • GENBANK/U11946
  • GENBANK/U11948
  • GENBANK/U11951
  • GENBANK/U11952
  • GENBANK/U11953
  • GENBANK/U11955
  • GENBANK/U11958
  • GENBANK/U11968
  • GENBANK/U11970
  • GENBANK/U11997
  • GENBANK/U12002
  • GENBANK/U12005
  • GENBANK/X15198