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. 1980 Dec;30(3):890–893. doi: 10.1128/iai.30.3.890-893.1980

Extracellular antigens of serotype III group B streptococci.

T I Doran, D C Straus, S J Mattingly
PMCID: PMC551398  PMID: 7014452

Abstract

Two sialic acid-containing type III group B streptococcal antigens were obtained from a supernatant growth medium, purified by anion exchange or gel filtration, and found to be free of group B reactivity. Quantitation of the high-molecular-weight extracellular type III antigen indicated that approximately 20-fold more antigen was recoverable from the growth medium than could be obtained by neutral buffer extraction of whole cells.

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Selected References

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