Abstract
Barley chitinase, bacterial chitosanase, and lysozymes from goose (GEWL), phage (T4L) and hen (HEWL) all hydrolyse related polysaccharides. The proteins share no significant ammo-acid similarities, but have a structurally invariant core consisting of two helices and a three-stranded (β-sheet which form the substrate-binding and catalytic cleft. These enzymes represent a superfamily of hydrolases which are likely to have arisen by divergent evolution. Based on structural criteria, we divide the hydrolase superfamily into a bacterial family (chitosanase and T4L) and a eucaryotic family represented by chitinase and GEWL Both families contain the core but have differing N- and C-terminal domains. Inclusion of chitinase and chitosanase in the superfamily suggests the archetypal catalytic mechanism of the group is an inverting mechanism. The retaining mechanism of HEWL is unusual.
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References
Hart, P.J., Monzingo, A.F., Ready, M.P., Ernst, S.R. & Robertas, J.D. Crystal structure of an endochitinase from Hordeum vulgare L seeds. J. Mol. Biol. 229, 189–193 (1993).
Hart, P.J., Pfluger, H.D., Monzingo, A.F., Hollis, T. & Robertus, J.D. The refined crystal structure of an endochitinase from Hordeum vulgare L seeds at 1.8 Å resolution. J. Mol. Biol. 248, 402–413 (1995).
Marcotte, E., Monzingo, A.F., Ernst, S.R., Brzezinski, R. & Robertus, J.D. X-ray structure of an anti-fungal chitosanase from Streptomyces N174. Nature Struct Biol. 3, 155–162 (1996).
Blake, C.C.F. et al. Structure of hen egg-white lysozyme. Nature 206, 757–761 (1965).
Matthews, B.W. & Remington, S.J. The three dimensional structure of the lysozyme from bacteriophage T4. Proc. Natl. Acad. Sci. USA 71, 4178–4182 (1974).
Rossmann, M.G. & Argos, P. Exploring structural homology of proteins. J. Mol. Biol. 105, 75–96 (1976).
Matthews, B.W., Grütter, M.G. Anderson, W.F. & Remington, S.J. Common precursor of lysozymes of hen egg-white and bacteriophage T4. Nature 290, 334–335 (1981).
Grütter, M.G., Weaver, L.H. & Matthews, B.W. Goose lysozyme structure: an evolutionary link between hen and bacteriophage lysozymes? Nature 303, 828–831 (1983).
Thunnissen, A.W.H., Dijkstra, A.J., Kalk, K.H., Rozeboom, H.J., Engel, H., Keck, W., & Dijkstra, B.W. Doughnut-shaped structure of a bacterial muramidase revealed by X-ray crystallography. Nature 367, 750–753 (1994).
Holm, L. & Sander, C. Structural similarity of plant chitinase and lysozyme from animals and phage. FEBS Lett. 340, 129–132 (1994).
Jones, T.A. . in Computational Crystallography (ed. Sayre, D.) 303–317 (Oxford University Press, 1982).
Holm, L. & Sander, C. Protein structure comparison by alignment of distance matrices. J. Mol. Biol. 233, 123–138 (1993).
Kelly, J.A., Sielecki, A.R., Sykes, B.D., James, M.N.G. & Phillips, D.C. X-ray crystallography of the binding of the bacterial cell wall trisaccharide NAM-NAG-NAM to lysozyme. Nature 282, 875–878 (1979).
Blake, C.C.F. et al. Crystallographic studies of the activity of hen egg-white lysozyme. Proc. Roy. Soc. B167, 378–388 (1967).
Withers, S.G. et al. Unequivocal demonstration of the involvement of a glutamate residue as a nucleophile in the mechanism of a “retaining” glycosidase. J. Am. Chem. Soc. 112, 5887–5889 (1990).
Sinnot, M.L. Catalytic mechanisms of enzymic glycosyl transfer. Chem. Rev. 90, 1171–1202 (1990).
Fukamizo, T., Koga, D. & Goto, S. Comparative biochemistry of chitinases-anomeric form of the reaction product. Biosci. Biotech. Biochem. 59, 311–313 (1995).
Fukamizo, T., Honda, Y., Goto, S., Boucher, I. & Brzezinski, R. Reaction mechanism of chitosanase from Streptomyces sp. N174. Biochem. J. 311, 377–383 (1995).
Kuroki, R., Weaver, L.H. & Matthews, B.W. A covalent enzyme-substrate intermediate with saccharide distortion in a mutant T4 lysozyme. Science 262, 2030–2033 (1993).
Wang, Q., Graham, R.W., Trimbur, D., Warren, R.A.J. & Withers, S.G. Changing enzymatic reaction mechanisms by mutagenesis: conversion of a retaining glucosidase to an inverting enzyme. J. Am. Chem. Soc. 116, 11594–11595 (1994).
Weaver, L.H., Grütter, M.G. & Matthews, B.W. The refined structures of goose lysozyme and its complex with a bound trisaccharide show that the “goose-type” lysozymes lack a catalytic aspartate residue. J. Mol. Biol. 245, 54–68 (1995).
Robertus, J.D. et al. An X-ray crystallographic study of the binding of peptide chloromethyl ketone inhibitors to subtilisin BPN'. Biochemistry 11, 2439–2449 (1972).
Thunnissen, A.W.H., Isaacs, N.W. & Dijkstra, B.W. The catalytic domain of a bacterial lytic transglycosylase defines a novel class of lysozymes. Proteins 22, 245–258 (1995).
Henrissat, B. & Bairoch, A. New families in the classification of glycosyl hydrolases based on amino acid sequence similarities. Biochem J. 293, 781–788 (1993).
Kraulis, J. MOLSCRIPT: A program to produce both detailed and schematic plots of protein structures. J. Appl. Crystallogr. 24, 946–950 (1991).
Sayle, R. RASMOL V2.5 Molecular visualization program (Glaxo Research and Development, 1994).
Kuroki, R., Weaver, L.H. & Matthews, B.W. Structure-based design of a lysozyme with altered catalytic activity. Nature Struct. Biology 2, 1007–1011 (1995).
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Monzingo, A., Marcotte, E., Hart, P. et al. Chitinases, chitosanases, and lysozymes can be divided into procaryotic and eucaryotic families sharing a conserved core. Nat Struct Mol Biol 3, 133–140 (1996). https://doi.org/10.1038/nsb0296-133
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DOI: https://doi.org/10.1038/nsb0296-133
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