To ATCC Valued Customers,

ATCC stands ready to support our customers’ needs during the coronavirus pandemic. If you experience any issues with your products or services, please contact ATCC Customer Service at For Technical questions please contact Thank you.

Streptococcus sobrinus Coykendall (ATCC® 33478)

Strain Designations: SL1 [CCM 6070, CNCTC 9/89]  /  Type Strain: yes  /  Biosafety Level: 1

Permits and Restrictions

View Permits

Strain Designations SL1 [CCM 6070, CNCTC 9/89]
Oral cavity - human; dental plaque
Biosafety Level 1

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Product Format freeze-dried
Storage Conditions Frozen: -80°C or colder
Freeze-Dried: 2°C to 8°C
Live Culture: See Propagation Section
Preceptrol® no
Type Strain yes
This strain is a separate deposit of strain SL-1, ATCC 27607
Medium ATCC® Medium 44: Brain Heart Infusion Agar/Broth
Growth Conditions
Temperature: 37°C
Atmosphere: Aerobic
Name of Depositor AL Coykendall
Chain of Custody
ATCC <-- AL Coykendall <-- J. Tanzer
Oral cavity - human; dental plaque

Coykendall AL. Proposal to elevate the subspecies of Streptococcus mutans to species status, based on their molecular composition. Int. J. Syst. Bacteriol. 27: 26-30, 1977.

Coykendall AL. Streptococcus sobrinus nom. rev. and Streptococcus ferus nom. rev.: Habitat of these and other mutans streptococci. Int. J. Syst. Bacteriol. 33: 883-885, 1983.

Cross References

Nucleotide (GenBank) : Z95919 Streptococcus sobrinus sodA gene.

Nucleotide (GenBank) : D63570 Streptococcus sobrinus gene for glucosyltransferase GTF-I, complete cds.

Nucleotide (GenBank) : AY188349 Streptococcus sobrinus strain ATCC 33478 16S ribosomal RNA gene, complete sequence

Notice: Necessary PermitsPermits

These permits may be required for shipping this product:

  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.
Basic Documentation