Amino acid dipepetide frequency for endosymbiont of Sipalinus gigas

Apart from single amino acid frequencies one can also calculate so called amino acid dipeptide frequency.

There is 400 possibilites (441 if we consider Xaa as additional 21st amino acid representing all non-standard or unknown amino acids). Thus, if the dipeptides would be present randomly in proteins each amino acid dipeptide should be present with 0.25% frequency. As it is not the case in the nature, for better visablity all more than expected dipepetides are marked by red, and those which are underrepresented are marked by blue in the table.

All values are presented as per milles (‰), therefore need to be multiplied by 10-3.

For more information see sequence space article on Wikipedia.

AlaCysAspGluPheGlyHisIleLysLeuMetAsnProGlnArgSerThrValTrpTyrXaa
Ala
0.848AlaAla: 0.848 ± 0.128
0.085AlaCys: 0.085 ± 0.031
0.565AlaAsp: 0.565 ± 0.084
0.891AlaGlu: 0.891 ± 0.137
0.735AlaPhe: 0.735 ± 0.12
1.046AlaGly: 1.046 ± 0.136
0.212AlaHis: 0.212 ± 0.05
2.149AlaIle: 2.149 ± 0.192
1.965AlaLys: 1.965 ± 0.178
1.838AlaLeu: 1.838 ± 0.178
0.368AlaMet: 0.368 ± 0.092
1.159AlaAsn: 1.159 ± 0.136
0.353AlaPro: 0.353 ± 0.067
0.325AlaGln: 0.325 ± 0.082
0.848AlaArg: 0.848 ± 0.116
1.131AlaSer: 1.131 ± 0.144
0.763AlaThr: 0.763 ± 0.106
0.905AlaVal: 0.905 ± 0.155
0.099AlaTrp: 0.099 ± 0.035
0.947AlaTyr: 0.947 ± 0.111
0.0AlaXaa: 0.0 ± 0.0
Cys
0.156CysAla: 0.156 ± 0.048
0.127CysCys: 0.127 ± 0.046
0.523CysAsp: 0.523 ± 0.073
0.594CysGlu: 0.594 ± 0.091
0.551CysPhe: 0.551 ± 0.092
0.565CysGly: 0.565 ± 0.079
0.141CysHis: 0.141 ± 0.044
1.894CysIle: 1.894 ± 0.178
1.046CysLys: 1.046 ± 0.13
0.721CysLeu: 0.721 ± 0.091
0.127CysMet: 0.127 ± 0.037
1.428CysAsn: 1.428 ± 0.157
0.226CysPro: 0.226 ± 0.052
0.085CysGln: 0.085 ± 0.033
0.212CysArg: 0.212 ± 0.06
0.707CysSer: 0.707 ± 0.094
0.283CysThr: 0.283 ± 0.061
0.283CysVal: 0.283 ± 0.061
0.028CysTrp: 0.028 ± 0.021
0.382CysTyr: 0.382 ± 0.072
0.0CysXaa: 0.0 ± 0.0
Asp
0.848AspAla: 0.848 ± 0.125
0.311AspCys: 0.311 ± 0.065
1.824AspAsp: 1.824 ± 0.177
2.375AspGlu: 2.375 ± 0.174
2.912AspPhe: 2.912 ± 0.2
1.612AspGly: 1.612 ± 0.175
0.58AspHis: 0.58 ± 0.085
9.203AspIle: 9.203 ± 0.409
6.093AspLys: 6.093 ± 0.293
4.467AspLeu: 4.467 ± 0.247
0.565AspMet: 0.565 ± 0.083
4.736AspAsn: 4.736 ± 0.285
0.707AspPro: 0.707 ± 0.105
0.58AspGln: 0.58 ± 0.083
0.99AspArg: 0.99 ± 0.101
2.714AspSer: 2.714 ± 0.185
1.301AspThr: 1.301 ± 0.108
1.81AspVal: 1.81 ± 0.153
0.24AspTrp: 0.24 ± 0.065
2.234AspTyr: 2.234 ± 0.162
0.0AspXaa: 0.0 ± 0.0
Glu
0.891GluAla: 0.891 ± 0.118
0.537GluCys: 0.537 ± 0.084
1.993GluAsp: 1.993 ± 0.163
2.559GluGlu: 2.559 ± 0.287
2.813GluPhe: 2.813 ± 0.198
1.527GluGly: 1.527 ± 0.176
0.537GluHis: 0.537 ± 0.085
8.299GluIle: 8.299 ± 0.363
5.98GluLys: 5.98 ± 0.29
4.595GluLeu: 4.595 ± 0.303
0.749GluMet: 0.749 ± 0.107
5.415GluAsn: 5.415 ± 0.289
0.679GluPro: 0.679 ± 0.094
0.608GluGln: 0.608 ± 0.098
1.018GluArg: 1.018 ± 0.116
3.379GluSer: 3.379 ± 0.234
1.202GluThr: 1.202 ± 0.155
1.979GluVal: 1.979 ± 0.176
0.297GluTrp: 0.297 ± 0.057
2.516GluTyr: 2.516 ± 0.211
0.0GluXaa: 0.0 ± 0.0
Phe
0.679PheAla: 0.679 ± 0.102
0.622PheCys: 0.622 ± 0.085
2.474PheAsp: 2.474 ± 0.203
1.88PheGlu: 1.88 ± 0.139
3.859PhePhe: 3.859 ± 0.286
2.121PheGly: 2.121 ± 0.175
0.41PheHis: 0.41 ± 0.077
9.005PheIle: 9.005 ± 0.441
6.178PheLys: 6.178 ± 0.334
5.881PheLeu: 5.881 ± 0.376
0.693PheMet: 0.693 ± 0.097
7.931PheAsn: 7.931 ± 0.354
1.286PhePro: 1.286 ± 0.145
0.636PheGln: 0.636 ± 0.094
1.202PheArg: 1.202 ± 0.124
3.888PheSer: 3.888 ± 0.265
1.343PheThr: 1.343 ± 0.149
1.258PheVal: 1.258 ± 0.152
0.311PheTrp: 0.311 ± 0.065
2.941PheTyr: 2.941 ± 0.234
0.0PheXaa: 0.0 ± 0.0
Gly
1.244GlyAla: 1.244 ± 0.173
0.523GlyCys: 0.523 ± 0.09
2.205GlyAsp: 2.205 ± 0.207
2.007GlyGlu: 2.007 ± 0.192
1.852GlyPhe: 1.852 ± 0.152
2.644GlyGly: 2.644 ± 0.236
0.834GlyHis: 0.834 ± 0.105
6.376GlyIle: 6.376 ± 0.323
4.326GlyLys: 4.326 ± 0.259
3.662GlyLeu: 3.662 ± 0.233
0.664GlyMet: 0.664 ± 0.104
3.223GlyAsn: 3.223 ± 0.228
0.99GlyPro: 0.99 ± 0.109
0.749GlyGln: 0.749 ± 0.117
1.612GlyArg: 1.612 ± 0.219
2.813GlySer: 2.813 ± 0.242
1.696GlyThr: 1.696 ± 0.152
1.598GlyVal: 1.598 ± 0.17
0.297GlyTrp: 0.297 ± 0.069
2.007GlyTyr: 2.007 ± 0.171
0.0GlyXaa: 0.0 ± 0.0
His
0.198HisAla: 0.198 ± 0.053
0.113HisCys: 0.113 ± 0.037
0.339HisAsp: 0.339 ± 0.067
0.41HisGlu: 0.41 ± 0.08
0.467HisPhe: 0.467 ± 0.08
0.622HisGly: 0.622 ± 0.102
0.198HisHis: 0.198 ± 0.049
1.852HisIle: 1.852 ± 0.185
0.862HisLys: 0.862 ± 0.101
0.862HisLeu: 0.862 ± 0.117
0.198HisMet: 0.198 ± 0.045
1.046HisAsn: 1.046 ± 0.128
0.467HisPro: 0.467 ± 0.106
0.17HisGln: 0.17 ± 0.046
0.452HisArg: 0.452 ± 0.086
0.749HisSer: 0.749 ± 0.103
0.353HisThr: 0.353 ± 0.07
0.396HisVal: 0.396 ± 0.088
0.042HisTrp: 0.042 ± 0.025
0.509HisTyr: 0.509 ± 0.081
0.0HisXaa: 0.0 ± 0.0
Ile
2.672IleAla: 2.672 ± 0.216
1.795IleCys: 1.795 ± 0.164
9.076IleAsp: 9.076 ± 0.314
7.86IleGlu: 7.86 ± 0.307
8.723IlePhe: 8.723 ± 0.476
6.588IleGly: 6.588 ± 0.321
1.329IleHis: 1.329 ± 0.148
20.739IleIle: 20.739 ± 0.798
22.068IleLys: 22.068 ± 0.63
17.375IleLeu: 17.375 ± 0.63
1.795IleMet: 1.795 ± 0.189
23.553IleAsn: 23.553 ± 0.789
4.298IlePro: 4.298 ± 0.229
1.711IleGln: 1.711 ± 0.156
3.987IleArg: 3.987 ± 0.216
12.116IleSer: 12.116 ± 0.371
4.128IleThr: 4.128 ± 0.212
4.877IleVal: 4.877 ± 0.301
0.806IleTrp: 0.806 ± 0.139
8.525IleTyr: 8.525 ± 0.47
0.0IleXaa: 0.0 ± 0.0
Lys
1.4LysAla: 1.4 ± 0.139
1.173LysCys: 1.173 ± 0.146
5.839LysAsp: 5.839 ± 0.263
6.22LysGlu: 6.22 ± 0.307
7.267LysPhe: 7.267 ± 0.363
3.548LysGly: 3.548 ± 0.276
0.975LysHis: 0.975 ± 0.128
21.701LysIle: 21.701 ± 0.651
18.294LysLys: 18.294 ± 0.702
11.889LysLeu: 11.889 ± 0.411
1.965LysMet: 1.965 ± 0.157
19.114LysAsn: 19.114 ± 0.708
1.541LysPro: 1.541 ± 0.142
1.089LysGln: 1.089 ± 0.138
2.658LysArg: 2.658 ± 0.198
7.295LysSer: 7.295 ± 0.361
3.817LysThr: 3.817 ± 0.213
3.704LysVal: 3.704 ± 0.22
0.693LysTrp: 0.693 ± 0.106
8.864LysTyr: 8.864 ± 0.39
0.0LysXaa: 0.0 ± 0.0
Leu
1.739LeuAla: 1.739 ± 0.147
1.032LeuCys: 1.032 ± 0.116
4.623LeuAsp: 4.623 ± 0.234
4.34LeuGlu: 4.34 ± 0.319
4.821LeuPhe: 4.821 ± 0.292
3.817LeuGly: 3.817 ± 0.24
1.216LeuHis: 1.216 ± 0.115
14.872LeuIle: 14.872 ± 0.533
11.183LeuLys: 11.183 ± 0.423
9.048LeuLeu: 9.048 ± 0.402
1.244LeuMet: 1.244 ± 0.134
13.331LeuAsn: 13.331 ± 0.556
1.894LeuPro: 1.894 ± 0.153
0.905LeuGln: 0.905 ± 0.125
2.05LeuArg: 2.05 ± 0.144
7.521LeuSer: 7.521 ± 0.294
2.983LeuThr: 2.983 ± 0.257
3.068LeuVal: 3.068 ± 0.223
0.481LeuTrp: 0.481 ± 0.081
5.316LeuTyr: 5.316 ± 0.285
0.0LeuXaa: 0.0 ± 0.0
Met
0.212MetAla: 0.212 ± 0.057
0.085MetCys: 0.085 ± 0.031
0.565MetAsp: 0.565 ± 0.077
0.594MetGlu: 0.594 ± 0.09
0.749MetPhe: 0.749 ± 0.088
0.679MetGly: 0.679 ± 0.105
0.113MetHis: 0.113 ± 0.042
2.22MetIle: 2.22 ± 0.191
1.711MetLys: 1.711 ± 0.155
1.272MetLeu: 1.272 ± 0.109
0.198MetMet: 0.198 ± 0.046
1.753MetAsn: 1.753 ± 0.141
0.339MetPro: 0.339 ± 0.08
0.198MetGln: 0.198 ± 0.058
0.41MetArg: 0.41 ± 0.082
1.343MetSer: 1.343 ± 0.121
0.396MetThr: 0.396 ± 0.063
0.467MetVal: 0.467 ± 0.077
0.071MetTrp: 0.071 ± 0.031
0.551MetTyr: 0.551 ± 0.08
0.0MetXaa: 0.0 ± 0.0
Asn
1.272AsnAla: 1.272 ± 0.157
0.862AsnCys: 0.862 ± 0.115
4.764AsnAsp: 4.764 ± 0.238
6.093AsnGlu: 6.093 ± 0.293
7.337AsnPhe: 7.337 ± 0.363
3.209AsnGly: 3.209 ± 0.241
0.778AsnHis: 0.778 ± 0.102
25.801AsnIle: 25.801 ± 0.894
20.089AsnLys: 20.089 ± 0.698
11.55AsnLeu: 11.55 ± 0.453
1.696AsnMet: 1.696 ± 0.178
18.294AsnAsn: 18.294 ± 0.645
1.81AsnPro: 1.81 ± 0.155
1.216AsnGln: 1.216 ± 0.139
2.87AsnArg: 2.87 ± 0.175
7.125AsnSer: 7.125 ± 0.29
3.266AsnThr: 3.266 ± 0.201
2.714AsnVal: 2.714 ± 0.192
0.834AsnTrp: 0.834 ± 0.145
5.867AsnTyr: 5.867 ± 0.329
0.0AsnXaa: 0.0 ± 0.0
Pro
0.24ProAla: 0.24 ± 0.057
0.269ProCys: 0.269 ± 0.065
1.018ProAsp: 1.018 ± 0.128
0.947ProGlu: 0.947 ± 0.108
0.961ProPhe: 0.961 ± 0.127
1.541ProGly: 1.541 ± 0.166
0.297ProHis: 0.297 ± 0.074
3.746ProIle: 3.746 ± 0.214
2.149ProLys: 2.149 ± 0.148
1.682ProLeu: 1.682 ± 0.148
0.311ProMet: 0.311 ± 0.062
2.036ProAsn: 2.036 ± 0.16
0.481ProPro: 0.481 ± 0.087
0.283ProGln: 0.283 ± 0.061
0.481ProArg: 0.481 ± 0.079
1.216ProSer: 1.216 ± 0.145
0.763ProThr: 0.763 ± 0.108
0.806ProVal: 0.806 ± 0.11
0.156ProTrp: 0.156 ± 0.053
1.032ProTyr: 1.032 ± 0.119
0.0ProXaa: 0.0 ± 0.0
Gln
0.396GlnAla: 0.396 ± 0.082
0.17GlnCys: 0.17 ± 0.042
0.523GlnAsp: 0.523 ± 0.095
0.594GlnGlu: 0.594 ± 0.098
0.763GlnPhe: 0.763 ± 0.101
0.481GlnGly: 0.481 ± 0.086
0.127GlnHis: 0.127 ± 0.055
2.135GlnIle: 2.135 ± 0.157
1.046GlnLys: 1.046 ± 0.103
1.103GlnLeu: 1.103 ± 0.132
0.226GlnMet: 0.226 ± 0.059
1.032GlnAsn: 1.032 ± 0.116
0.254GlnPro: 0.254 ± 0.059
0.198GlnGln: 0.198 ± 0.054
0.339GlnArg: 0.339 ± 0.078
0.848GlnSer: 0.848 ± 0.112
0.481GlnThr: 0.481 ± 0.098
0.481GlnVal: 0.481 ± 0.08
0.099GlnTrp: 0.099 ± 0.038
0.636GlnTyr: 0.636 ± 0.096
0.0GlnXaa: 0.0 ± 0.0
Arg
0.594ArgAla: 0.594 ± 0.101
0.325ArgCys: 0.325 ± 0.067
0.99ArgAsp: 0.99 ± 0.116
1.329ArgGlu: 1.329 ± 0.152
1.188ArgPhe: 1.188 ± 0.125
1.145ArgGly: 1.145 ± 0.15
0.41ArgHis: 0.41 ± 0.083
3.845ArgIle: 3.845 ± 0.223
3.068ArgLys: 3.068 ± 0.206
2.22ArgLeu: 2.22 ± 0.167
0.467ArgMet: 0.467 ± 0.089
2.361ArgAsn: 2.361 ± 0.185
0.749ArgPro: 0.749 ± 0.103
0.565ArgGln: 0.565 ± 0.096
0.919ArgArg: 0.919 ± 0.133
1.725ArgSer: 1.725 ± 0.148
1.018ArgThr: 1.018 ± 0.112
0.961ArgVal: 0.961 ± 0.129
0.141ArgTrp: 0.141 ± 0.041
1.089ArgTyr: 1.089 ± 0.139
0.0ArgXaa: 0.0 ± 0.0
Ser
1.371SerAla: 1.371 ± 0.158
0.834SerCys: 0.834 ± 0.114
3.11SerAsp: 3.11 ± 0.212
2.884SerGlu: 2.884 ± 0.192
3.619SerPhe: 3.619 ± 0.242
3.421SerGly: 3.421 ± 0.21
0.834SerHis: 0.834 ± 0.104
11.381SerIle: 11.381 ± 0.432
8.242SerLys: 8.242 ± 0.339
6.489SerLeu: 6.489 ± 0.296
0.877SerMet: 0.877 ± 0.102
7.252SerAsn: 7.252 ± 0.259
1.47SerPro: 1.47 ± 0.147
0.862SerGln: 0.862 ± 0.113
1.965SerArg: 1.965 ± 0.191
4.552SerSer: 4.552 ± 0.265
1.965SerThr: 1.965 ± 0.157
1.81SerVal: 1.81 ± 0.162
0.438SerTrp: 0.438 ± 0.089
3.591SerTyr: 3.591 ± 0.221
0.0SerXaa: 0.0 ± 0.0
Thr
0.565ThrAla: 0.565 ± 0.091
0.339ThrCys: 0.339 ± 0.073
1.371ThrAsp: 1.371 ± 0.16
1.47ThrGlu: 1.47 ± 0.174
1.682ThrPhe: 1.682 ± 0.148
2.22ThrGly: 2.22 ± 0.198
0.353ThrHis: 0.353 ± 0.086
3.633ThrIle: 3.633 ± 0.225
3.167ThrLys: 3.167 ± 0.217
2.926ThrLeu: 2.926 ± 0.197
0.339ThrMet: 0.339 ± 0.06
3.167ThrAsn: 3.167 ± 0.214
0.961ThrPro: 0.961 ± 0.129
0.467ThrGln: 0.467 ± 0.083
0.848ThrArg: 0.848 ± 0.103
2.205ThrSer: 2.205 ± 0.172
1.244ThrThr: 1.244 ± 0.168
1.301ThrVal: 1.301 ± 0.151
0.085ThrTrp: 0.085 ± 0.033
1.329ThrTyr: 1.329 ± 0.134
0.0ThrXaa: 0.0 ± 0.0
Val
0.919ValAla: 0.919 ± 0.134
0.24ValCys: 0.24 ± 0.048
1.626ValAsp: 1.626 ± 0.183
1.725ValGlu: 1.725 ± 0.192
1.272ValPhe: 1.272 ± 0.124
1.668ValGly: 1.668 ± 0.187
0.382ValHis: 0.382 ± 0.064
4.185ValIle: 4.185 ± 0.255
3.563ValLys: 3.563 ± 0.223
3.138ValLeu: 3.138 ± 0.203
0.438ValMet: 0.438 ± 0.079
3.421ValAsn: 3.421 ± 0.238
0.749ValPro: 0.749 ± 0.111
0.438ValGln: 0.438 ± 0.091
0.806ValArg: 0.806 ± 0.127
2.46ValSer: 2.46 ± 0.211
1.004ValThr: 1.004 ± 0.133
1.244ValVal: 1.244 ± 0.165
0.226ValTrp: 0.226 ± 0.052
1.343ValTyr: 1.343 ± 0.135
0.0ValXaa: 0.0 ± 0.0
Trp
0.099TrpAla: 0.099 ± 0.038
0.127TrpCys: 0.127 ± 0.05
0.438TrpAsp: 0.438 ± 0.085
0.226TrpGlu: 0.226 ± 0.057
0.325TrpPhe: 0.325 ± 0.074
0.17TrpGly: 0.17 ± 0.051
0.113TrpHis: 0.113 ± 0.042
1.032TrpIle: 1.032 ± 0.109
0.565TrpLys: 0.565 ± 0.109
0.452TrpLeu: 0.452 ± 0.075
0.156TrpMet: 0.156 ± 0.05
0.565TrpAsn: 0.565 ± 0.102
0.141TrpPro: 0.141 ± 0.049
0.099TrpGln: 0.099 ± 0.041
0.212TrpArg: 0.212 ± 0.057
0.297TrpSer: 0.297 ± 0.061
0.127TrpThr: 0.127 ± 0.051
0.184TrpVal: 0.184 ± 0.054
0.042TrpTrp: 0.042 ± 0.024
0.24TrpTyr: 0.24 ± 0.063
0.0TrpXaa: 0.0 ± 0.0
Tyr
0.891TyrAla: 0.891 ± 0.102
0.509TyrCys: 0.509 ± 0.092
2.234TyrAsp: 2.234 ± 0.16
2.573TyrGlu: 2.573 ± 0.211
2.7TyrPhe: 2.7 ± 0.218
2.7TyrGly: 2.7 ± 0.209
0.467TyrHis: 0.467 ± 0.066
9.953TyrIle: 9.953 ± 0.39
7.45TyrLys: 7.45 ± 0.348
4.312TyrLeu: 4.312 ± 0.259
0.834TyrMet: 0.834 ± 0.094
6.645TyrAsn: 6.645 ± 0.308
1.018TyrPro: 1.018 ± 0.121
0.749TyrGln: 0.749 ± 0.112
1.23TyrArg: 1.23 ± 0.135
2.884TyrSer: 2.884 ± 0.216
1.541TyrThr: 1.541 ± 0.15
1.004TyrVal: 1.004 ± 0.101
0.226TyrTrp: 0.226 ± 0.066
2.389TyrTyr: 2.389 ± 0.196
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.0XaaGly: 0.0 ± 0.0
0.0XaaHis: 0.0 ± 0.0
0.0XaaIle: 0.0 ± 0.0
0.0XaaLys: 0.0 ± 0.0
0.0XaaLeu: 0.0 ± 0.0
0.0XaaMet: 0.0 ± 0.0
0.0XaaAsn: 0.0 ± 0.0
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.0XaaThr: 0.0 ± 0.0
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.0XaaXaa: 0.0 ± 0.0
Statistics based on 228 proteins (70736 amino acids)

Note: The error has been estimated with the bootstraping (x100) at the protein level

Above dipeptide statistics (among other stats for this proteome) you can download from this CSV file
See this proteome in: uniprot_link
Proteome-pI is available under Creative Commons Attribution-NoDerivs license, for more details see here

Reference: Kozlowski LP. Proteome-pI 2.0: Proteome Isoelectric Point Database Update. Nucleic Acids Res. 2021, doi: 10.1093/nar/gkab944 Contact: Lukasz P. Kozlowski