Figure 2: Oxidative breakdown of starch by AA13. | Nature Communications

Figure 2: Oxidative breakdown of starch by AA13.

From: Structure and boosting activity of a starch-degrading lytic polysaccharide monooxygenase

Figure 2

MALDI–TOF–MS spectra of An(AA13) products from retrograded starch with 4 mM cysteine. C1-oxidized malto-oligosaccharides are present as a monosodiated lactone (m/z of the malto-oligosaccharide −2 Da), monosodiated aldonic acid (+16 Da) and disodiated aldonic acid (+38 Da). Inset: per-methylated C1-oxidized malto-oligosaccharides are present as monosodiated aldonic acid (+30 Da). The mass of unknown adduct X in peak e does not correspond to any cation component of the enzyme preparation.

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