Pyrobaculum aerophilum explained

Pyrobaculum aerophilum is a single-celled microorganism in the genus Pyrobaculum. The first Pyrobaculum species to be sequenced was P. aerophilum. It is a rod-shaped hyperthermophilic archaeum first isolated from a boiling marine water hole at Maronti Beach, Ischia. It forms characteristic terminal spherical bodies (so called "golf clubs") like Thermoproteus and Pyrobaculum. Its type strain is IM2; DSM 7523). Its optimum temperature for growth is around boiling point for water.^[1] Its optimum pH for growth is 7.0. Sulfur was found to inhibit its growth.

Its circular genome sequence is 2,222,430 Bp in length and contains 2605 protein-coding sequences (CDS). It is capable of aerobic respiration. Its name references this ability: aerophilum coming from the Greek: ἀήρ ("aero"), meaning air, and φιλο (philo), meaning loving. It produces colonies that are round and greyish yellow. It uses both organic and inorganic compounds during respiration.^{[2] [3]}

Whole genome analysis demonstrated that it lacks 5' untranslated regions in its mRNAs. This implies that it does not employ the Shine-Delgarno sequence to initiate protein synthesis.^[4]

Further reading

• 4 . Fitz-Gibbon ST . Ladner H . Kim UJ. Stetter KO . Simon MI. Miller JH . Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum aerophilum . . 99 . 2 . 984–9 . January 2002 . 11792869 . 117417 . 10.1073/pnas.241636498 . 2002PNAS...99..984F . free .
• 4. Kaper. T.. Talik. B.. Ettema. T. J.. Bos. H.. van der Maarel. M. J. E. C.. Dijkhuizen. L.. Amylomaltase of Pyrobaculum aerophilum IM2 Produces Thermoreversible Starch Gels. Applied and Environmental Microbiology. 71. 9. 2005. 5098–5106. 0099-2240. 10.1128/AEM.71.9.5098-5106.2005. 16151092. 1214675. 2005ApEnM..71.5098K.
• Vallin. I.. Low. H.. The Effect of Piericidin A on Energy-Linked Processes in Submitochondrial Particles. European Journal of Biochemistry. 5. 3. 1968. 402–408. 0014-2956. 10.1111/j.1432-1033.1968.tb00383.x. 4300601. 40457534.
• Solomons. J. T. Graham. Johnsen. Ulrike. Schoenheit. Peter. Davies. Christopher. 3-Phosphoglycerate Is an Allosteric Activator of Pyruvate Kinase from the Hyperthermophilic ArchaeonPyrobaculum aerophilum. Biochemistry. August 27, 2013. 52. 34. 10.1021/bi400761b. 5865–5875. 23879743.

External links

• • WORMS entry
• Type strain of Pyrobaculum aerophilum at BacDive - the Bacterial Diversity Metadatabase

Notes and References

1. 4 . Ausili . Alessio . Vitale . Annalisa . Labella. Tullio. Rosso. Francesco. Barbarisi. Alfonso. Gómez-Fernández. Juan C. . D’Auria. Sabato. Alcohol dehydrogenase from the hyperthermophilic archaeon Pyrobaculum aerophilum: Stability at high temperature. Archives of Biochemistry and Biophysics. 525. 1. 2012. 40–46. 0003-9861 . 10.1016/j.abb.2012.05.019 . 22683471.
2. Völkl P . Huber R . Drobner E. etal . Pyrobaculum aerophilum sp. nov., a novel nitrate-reducing hyperthermophilic archaeum . . 59 . 9 . 2918–26 . September 1993 . 10.1128/AEM.59.9.2918-2926.1993 . 7692819 . 182387 . 1993ApEnM..59.2918V .
3. 4. Cozen. A. E.. Weirauch. M. T.. Pollard. K. S.. Katherine Pollard. Bernick. D. L. . Stuart . J. M.. Lowe. T. M.. Transcriptional Map of Respiratory Versatility in the Hyperthermophilic Crenarchaeon Pyrobaculum aerophilum. Journal of Bacteriology. 191. 3. 2008. 782–794. 0021-9193 . 10.1128/JB.00965-08 . 19047344 . 2632070.
4. Fitz-Gibbon. Sorel T.. Ladner. Heidi. Kim. Ung-Jin. Stetter. Karl O.. Simon. Melvin I.. Miller. Jeffrey H.. 2002-01-22. Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum aerophilum. Proceedings of the National Academy of Sciences of the United States of America. 99. 2. 984–989. 10.1073/pnas.241636498. 0027-8424. 11792869. 117417. 2002PNAS...99..984F. free.