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. 2010 May;156(Pt 5):1497–1504. doi: 10.1099/mic.0.032821-0

Table 1.

The most probable combination of mycolic acids present in TDM of different molecular masses isolated from M. smegmatis

Mass no. of TDM (M+Na)* M. smegmatis mycolic acid combination†
2158.96 (C124 Δ2) α′62 : α′62
2186.99 (C126 Δ2) α′62 : α′64
2215.02 (C128 Δ2) α′62 : α′66; α′64 : α′64
2325.12 (C136 Δ3) α′62 : α74
2353.15 (C138 Δ3) α′62 : α76; α′64 : α74
2367.17 (C139 Δ3) α′62 : α77; α′64 : α75
2395.20 (C141 Δ3) α′62 : α79; α′64 : α77; α′66 : α75
2423.23 (C143 Δ3) α′62 : α81; α′64 : α79; α′66 : α77
2575.37 (C154 Δ4) α74 : α80; α75 : α79; α76 : α78; α77 : α77
2589.39 (C155 Δ4) α74 : α81; α75 : α80; α76 : α79; α77 : α78
2603.40 (C156 Δ4) α74 : α82; α75 : α81; α76 : α80; α77 : α79; α78 : α78
2617.41 (C157 Δ4) α75 : α82; α76 : α81; α77 : α80; α78 : α79
2631.44 (C158 Δ4) α76 : α82; α77 : α81; α78 : α80; α79 : α79
2661.43 (C159 epoxy Δ3) α82 : e77; α81 : e78; α80 : e79; α79 : e80; α78 : e81; α77 : e82; α76 : e83; α75 : e84
2675.43 (C160 epoxy Δ3) α82 : e78; α81 : e79; α80 : e80; α79 : e81; α78 : e82; α76 : e84; α77 : e83; α76 : e84

*The C number refers to the number of carbons in the mycolate chains (does not include the 12 carbons of trehalose). The Δ number indicates the total number of double bonds.

α, α-mycolates; α′, α′-mycolates; e, epoxy mycolates.