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. Author manuscript; available in PMC: 2021 Oct 1.
Published in final edited form as: Free Radic Biol Med. 2020 Jul 23;158:149–161. doi: 10.1016/j.freeradbiomed.2020.07.006

Table 1.

Michaelis-Menten analysis of the dopamine oxidase activity of soluble or membrane-bound NH2α-Syn-Cu(II) and NAcα-Syn-Cu(II) determined using MBTH (2 mM) in 20 mM N-ethylmorpholine/100 mM NaCl, pH 7.4.

VMAX, DOPAMINE
(nmol quinone*μmol−1α-Syn Cu(II)*min−1)
KM, DOPAMINE (mM)
NH2α -Syn-Cu(II) 14.2 ± 2.5 0.30 ± 0.00
NAcα-Syn-Cu(II) 12.5 ± 0.6 0.23 ± 0.03
mem NH2a-Syn-Cu(II) 1094.0 ± 22.5 0.32 ± 0.03
mem NAcα-Syn-Cu(II) 1281.6 ± 63.6 0.29 ± 0.05