Subspecies "Streptococcus mutans subsp. sobrinus"

Name: "Streptococcus mutans subsp. sobrinus" Coykendall 1974

Category, proposed as: subspecies, subsp. nov.

Etymology: so.bri’nus. L. masc. n. sobrinus, male cousin on the mother's side

Pronunciation (Latin), gender: strep-to-KOK-kus MU-tans so-BRI-nus, masculine

Nomenclatural type: ATCC 33478; CCUG 25735; CIP 103230; DSM 20742; HAMBI 1516; LMG 14641; NCTC 12279; SL1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ243966 Analyse FASTA

Original publication: Coykendall AL. Four types of Streptococcus mutans based on their genetic, antigenic and biochemical characteristics. J Gen Microbiol 1974; 83:327-338.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Streptococcus sobrinus (ex Coykendall 1974) Coykendall 1983

Risk group: 2

• Synonyms:

  • Name	Kind
    Streptococcus sobrinus (ex Coykendall 1974) Coykendall 1983	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.

Parent taxon: Streptococcus mutans Clarke 1924 (Approved Lists 1980)

Assigned by: Coykendall AL. Four types of Streptococcus mutans based on their genetic, antigenic and biochemical characteristics. J Gen Microbiol 1974; 83:327-338.

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Record number: 4704