Name: "Geobacillus caldoproteolyticus" Chen et al. 2004

Category: Species

Proposed as: sp. nov.

Etymology: cal.do.pro.teo.ly’ti.cus. L. masc. adj. caldus, hot; M.L. neut. n. proteo, protein; N.L. masc. adj. lyticus, dissolving, degrading; N.L. masc. adj. caldoproteolyticus, hot and protein degrading

Gender: masculine

Nomenclatural type: ATCC BAA-818; DSM 15730; LMG 26209; R-35652; SF03

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AY327448 Analyse FASTA

Original publication: Chen XG, Stabnikova O, Tay JH, Wang JY, Tay ST. Thermoactive extracellular proteases of Geobacillus caldoproteolyticus, sp. nov., from sewage sludge. Extremophiles 2004; 8:489-498.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Anoxybacillus caldiproteolyticus Coorevits et al. 2012

• Synonyms:

  • Name	Kind
    Anoxybacillus caldiproteolyticus Coorevits et al. 2012	homotypic synonym, validly published under the ICNP
    Thermaerobacillus caldiproteolyticus (Coorevits et al. 2012) Patel et al. 2024	homotypic synonym, validly published under the ICNP

• Notes:
  • 🧍 "Geobacillus caldoproteolyticus" Chen et al. is now known as Anoxybacillus caldiproteolyticus Coorevits et al. 2012. Publication: Coorevits A, Dinsdale AE, Halket G, Lebbe L, De Vos P, Van Landschoot A, Logan NA. Taxonomic revision of the genus Geobacillus: emendation of Geobacillus, G. stearothermophilus, G. jurassicus, G. toebii, G. thermodenitrificans and G. thermoglucosidans (nom. corrig., formerly 'thermoglucosidasius'); transfer of Bacillus thermantarcticus to the genus as G. thermantarcticus comb. nov.; proposal of Caldibacillus debilis gen. nov., comb. nov.; transfer of G. tepidamans to Anoxybacillus as A. tepidamans comb. nov.; and proposal of Anoxybacillus caldiproteolyticus sp. nov. Int J Syst Evol Microbiol 2012; 62:1470-1485.

Parent taxon: Geobacillus Nazina et al. 2001

Assigned by: Chen XG, Stabnikova O, Tay JH, Wang JY, Tay ST. Thermoactive extracellular proteases of Geobacillus caldoproteolyticus, sp. nov., from sewage sludge. Extremophiles 2004; 8:489-498.

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Record number: 776439