Refences
References

1.) Kloer, D. P., et al., 2005. The Structure of a Retinal-Forming Carotenoid Oxygenase. Science, 308:267-269. Retrieved from http://www.rcsb.org/pdb/explore/explore.do?structureId=2biw (Accessed October 15, 2014).

2.) Borowski, T., Blomberg, M., & Siegbahn, P., 2008. Reaction Mechanism of Apocarotenoid Oxygenase (ACO): A DFT Study. Chemistry: A European Journal, 14:2264-2276. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/18181127 (Accessed October 15, 2014).

3.) Auldridge, M., McCarty, D., & Klee, H., 2006. Plant carotenoid cleavage oxygenases and their apocarotenoid products. Plant Biology, 9:315-321. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/16616608 (Accessed October 15, 2014).

4.) Sui, X., et al., 2014. Analysis of Carotenoid Isomerase Activity in a Prototypical Carotenoid Cleavage Enzyme, Apocarotenoid Oxygenase (ACO). Journal of Biological Chemistry, 289:12286-12299. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/24648526 (Accessed October 15, 2014). 

5.) Lobo, G., et al., 2012. Carotenoid-oxygenases: Key players for Carotenoid Function and Homeostasis in Mammalian Biology. Biochimica et Biophysica Acta, 1821(1):78-87. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3162997/ (Accessed October 15, 2014).

6.) PBID: 2BIX. Kloer, D. P., et al., (2005). The Structure of a Retinal-Forming Carotenoid Oxygenase. Science, 308:267-269. Retreived from http://www.rcsb.org/pdb/explore/explore.do?structureId=2bix (Accessed October 15, 2014).
 
7.) Protein identification and analysis tools on the ExPASy server. Gasteiger, E. et. al. In J. M. Walker (Ed.)

8.) Altschul, S.F., et al., (1997) "Gapped BLAST and PSI-BLAST: a new generation of protein database search programs." Nucleic Acids Res. 25:3389-3402.

9.) Dali server: conservation mapping in 3D. Nucl. Acids Res. 38, W545-549. Holm L, Rosenström, P. 2010.

10.) Messing, Simon, et al., 2010. Structural Insights into Maize Viviparous14, a Key Enzyme in the Biosynthesis of the Phytohormone Abscisic Acid. The Plant Cell 22: 2970-80. Retrieved from http://www.rcsb.org/pdb/explore.do?structureId=3npe (Accessed October 15, 2014).