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. Author manuscript; available in PMC: 2011 Nov 22.
Published in final edited form as: Biochemistry. 2007 Jul 18;46(32):9270–9282. doi: 10.1021/bi700508n

Table 2.

Extracting the copper oxidation state from the measured m/z values of the Aβ(1–42)-Cu(II) adduct

Aβ(1–42)-Cu Aβ-Cu(I) Aβ-Cu(II)
Meas. m/z Meas. Rel.
Abund.
(%)		 Calcd. m/z Calcd. Rel.
Abund. (%)		 Dev.
(ppm)		 Calcd.
m/z 		Calcd. Rel.
Abund. (%)		 Dev.
(ppm)
4+ Ion A 1144.068 19 1144.306 25 210 1144.054 25 12
A+1 1144.317 62 1144.556 62 210 1144.304 62 11
A+2 1144.568 87 1144.807 92 210 1144.555 92 11
A+3 1144.818 100 1145.057 100 210 1144.805 100 11
A+4 1145.069 91 1145.308 87 210 1145.056 87 12
A+5 1145.318 56 1145.558 62 210 1145.306 62 11
A+6 1145.569 31 1145.809 37 210 1145.557 37 11
A+7 1145.819 19 1146.059 20 210 1145.807 20 10
5+ Ion A 915.457 32 915.646 25 210 915.444 25 14
A+1 915.656 54 915.847 62 210 915.645 62 12
A+2 915.856 83 916.047 92 210 915.856 92 12
A+3 915.055 100 916.247 100 210 916.046 100 10
A+4 916.256 94 916.448 87 210 916.246 87 11
A+5 916.456 66 916.648 62 210 916.446 62 11
A+6 916.656 40 916.848 37 210 916.647 37 10
A+7 916.859 23 916.049 20 210 916.847 20 12
A+8 917.063 10 916.249 9 200 917.048 9 16
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