Common N-Linked Structures and Masses

Common N-Linked Glycan Simplified
Structures and Masses

A Few Common N-Linked Structures and Subunits
These are Useful Structures for Labeling MS and MS/MS Spectra
see our example
(try downloading the .ppt file below the table)

.	complex sialylated fucosylated diantennary	complex sialylated fucosylated triantennary	complex sialylated fucosylated tetraantennary	high mannose (man 7)	hybrid	common core str. subunit	sialylated branch subunit	branch subunit
N-Linked Structures
Composition	C₉₀O₆₅N₆H₁₄₆	C₁₁₅O₈₃N₈H₁₈₆	C₁₄₀O₁₀₁N₁₀H₂₂₆	C₆₄O₄₉N₂H₁₀₆	C₈₃O₆₂N₄H₁₃₆	C₃₄O₂₅N₂H₅₆	C₂₅O₁₈N₂H₄₀	C₁₄O₁₀N₁H₂₃
.	.	.	.	.	.	.	.	.
Mono. Mass	2350.8303	3007.0579	3663.2856	1686.5864	2180.7612	892.3172	656.2276	365.1322
Av. Mass	2352.13	3008.72	3665.30	1687.51	2181.96	892.81	656.59	365.33

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Symbol Key

Residue	Symbol	Residue Composition	Mono Isotopic Mass	Average Mass
Sialic Acid		C₁₁O₈NH₁₇	291.0954	291.26
Galactose		C₆O₅H₁₀	162.0528	162.14
N-Acetylglucosamine		C₈O₅NH₁₃	203.0794	203.19
Mannose		C₆O₅H₁₀	162.0528	162.14
Fucose		C₆O₄H₁₀	146.0579	146.14

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