Abstract
The Lys residue at position 108 of human β-carotene 15,15′-monooxygenase is located on the outside surface of the active tunnel of the enzyme. Hydrophobic mutations (K108F and K108L) at this position substantially decreased the affinity of the enzyme for substrates with ionone rings at both ends, such as α-carotene, β-carotene, and β-cryptoxanthine. In contrast, these mutations had little effect on the affinity of the enzyme for substrates with one ionone ring and one open-chain end, such as β-apo-4′-carotenal and β-apo-8′-carotenal. The residue 108 may be related to the indirect interaction with the second ionone ring of the substrates with two ionone rings.
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References
During A, Nagao A, Hoshino C, Terao J (1996) Assay of β-carotene 15, 15′-dioxygenase activity by reverse-phase high-pressure liquid chromatography. Anal Biochem 241:199–205
Goodman D, Huang H, Kanai M, Shiratori T (1967) The enzymatic conversion of all-trans β-carotene into retinal. J Biol Chem 242:3543–3554
Grolier P, Duszka C, Borel P, Alexandre-Gouabau M, Azais-Braesco V (1997) In vitro and in vivo inhibition of β-carotene dioxygenase activity by canthaxanthin in rat intestine. Arch Biochem Biophys 348:233–238
Kim YS, Oh DK (2009) Substrate specificity of a recombinant chicken β-carotene 15,15′-monooxygenase that converts beta-carotene into retinal. Biotechnol Lett 31:403–408
Kim NH, Kim YS, Kim HJ, Oh DK (2008) Optimized formation of detergent micelles of β-carotene and retinal production using recombinant human β,β-carotene 15,15′-monooxygenase. Biotechnol Prog 24:227–231
Kim YS, Kim NH, Yeom SJ, Kim SW, Oh DK (2009) In vitro characterization of a recombinant Blh protein from an uncultured marine bacterium as a β-carotene 15,15′-dioxygenase. J Biol Chem 284:15781–15793
Kloer DP, Schulz GE (2006) Structural and biological aspects of carotenoid cleavage. Cell Mol Life Sci 63:2291–2303
Kloer DP, Ruch S, Al-Babili S, Beyer P, Schulz GE (2005) The structure of a retinal-forming carotenoid oxygenase. Science 308:267–269
Lampert J, Holzschuh J, Hessel S, Driever W, Vogt K, von Lintig J (2003) Provitamin A conversion to retinal via the β,β-carotene-15,15′-oxygenase (bcox) is essential for pattern formation and differentiation during zebrafish embryogenesis. Development 130:2173–2186
Lindqvist A, Andersson S (2002) Biochemical properties of purified recombinant human β-carotene 15,15′-monooxygenase. J Biol Chem 277:23942–23948
Paik J, During A, Harrison E, Mendelsohn C, Lai K, Blaner W (2001) Expression and characterization of a murine enzyme able to cleave β-carotene. The formation of retinoids. J Biol Chem 276:32160–32168
Park CS, Lee SW, Kim YS, Kim EJ, Sin HS, Oh DK, Kim SW, Um SJ (2008) Utilization of the recombinant human β-carotene-15,15′-monooxygenase gene in Escherichia coli and mammalian cells. Biotechnol Lett 30:735–741
Sali A, Blundell TL (1993) Comparative protein modelling by satisfaction of spatial restraints. J Mol Biol 234:779–815
Scherzinger D, Ruch S, Kloer DP, Wilde A, Al-Babili S (2006) Retinal is formed from apo-carotenoids in Nostoc sp. PCC7120: in vitro characterization of an apo-carotenoid oxygenase. Biochem J 398:361–369
Thompson JD, Higgins DG, Gibson TJ (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res 22:4673–4680
von Lintig J, Vogt K (2000) Filling the gap in vitamin A research. Molecular identification of an enzyme cleaving β-carotene to retinal. J Biol Chem 275:11915–11920
Wyss A, Wirtz G, Woggon W, Brugger R, Wyss M, Friedlein A, Bachmann H, Hunziker W (2000) Cloning and expression of β,β-carotene 15,15′-dioxygenase. Biochem Biophys Res Commun 271:334–336
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This study was supported by a grant (2009-0084490) from the Basic Research Program, Ministry of Education, Science and Technology.
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Kim, YS., Park, CS. & Oh, DK. Hydrophobicity of residue 108 specifically affects the affinity of human β-carotene 15,15′-monooxygenase for substrates with two ionone rings. Biotechnol Lett 32, 847–853 (2010). https://doi.org/10.1007/s10529-010-0234-8
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DOI: https://doi.org/10.1007/s10529-010-0234-8