Dipeptide Masses

This table lists dipeptide masses (sum of residue masses + 1Da).
The values are useful for assigning internal fragment-ions and the b2 ion in tandem mass spectra.

Leu/Gln/Met-Cys-Cys-
GlyAlaSerProValThrCysIleAsnAspLysGluMetHisoxPheArgcmTyramTrp
GASPVTCL/INDQ/KEMHM-oxFRC-cmYC-amW
5771879799101103113114115128129131137147147156161163174186
GlyG57115
AlaA71129143
SerS87145159175
ProP97155169185195
ValV99157171187197199
ThrT101159173189199201203
CysC103161175191201203205207
Leu/IleL/I113171185201211213215217227
AsnN114172186202212214216218228229
AspD115173187203213215217219229230231
Gln/LysQ/K128186200216226228230232242243244257
GluE129187201217227229231233243244245258259
MetM131189203219229231233235245246247260261263
HisH137195209225235237239241251252253266267269275
Met-oxM-ox147205219235245247249251261262263276277279285295
PheF147205219235245247249251261262263276277279285295295
ArgR156214228244254256258260270271272285286288294304304313
Cys-cmC-cm161219233249259261263265275276277290291293299309309318323
TyrY163221235251261263265267277278279292293295301311311320325327
Cys-amC-am174232246262272274276278288289290303304306312322322331336338349
TrpW186244258274284286288290300301302315316318324334334343348350361373

Note: C-cm; carboxy-methyl Cys | C-am; acrylamide-modified Cys | M-ox; oxidized Met


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