Amino acid dipepetide frequency for Clostridium sp. CAG:433

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
1.864AlaAla: 1.864 ± 0.091
0.43AlaCys: 0.43 ± 0.034
1.864AlaAsp: 1.864 ± 0.07
2.155AlaGlu: 2.155 ± 0.096
1.708AlaPhe: 1.708 ± 0.067
2.385AlaGly: 2.385 ± 0.087
0.603AlaHis: 0.603 ± 0.045
3.92AlaIle: 3.92 ± 0.11
4.142AlaLys: 4.142 ± 0.13
3.991AlaLeu: 3.991 ± 0.115
0.825AlaMet: 0.825 ± 0.045
2.486AlaAsn: 2.486 ± 0.087
0.816AlaPro: 0.816 ± 0.043
0.853AlaGln: 0.853 ± 0.048
1.505AlaArg: 1.505 ± 0.074
2.934AlaSer: 2.934 ± 0.102
2.202AlaThr: 2.202 ± 0.081
2.496AlaVal: 2.496 ± 0.089
0.193AlaTrp: 0.193 ± 0.024
1.92AlaTyr: 1.92 ± 0.078
0.0AlaXaa: 0.0 ± 0.0
Cys
0.512CysAla: 0.512 ± 0.039
0.106CysCys: 0.106 ± 0.016
0.811CysAsp: 0.811 ± 0.048
0.672CysGlu: 0.672 ± 0.044
0.46CysPhe: 0.46 ± 0.033
0.69CysGly: 0.69 ± 0.042
0.138CysHis: 0.138 ± 0.02
0.917CysIle: 0.917 ± 0.055
0.956CysLys: 0.956 ± 0.059
0.811CysLeu: 0.811 ± 0.042
0.208CysMet: 0.208 ± 0.021
0.749CysAsn: 0.749 ± 0.05
0.267CysPro: 0.267 ± 0.028
0.111CysGln: 0.111 ± 0.016
0.188CysArg: 0.188 ± 0.024
0.62CysSer: 0.62 ± 0.037
0.591CysThr: 0.591 ± 0.043
0.551CysVal: 0.551 ± 0.037
0.054CysTrp: 0.054 ± 0.012
0.497CysTyr: 0.497 ± 0.042
0.0CysXaa: 0.0 ± 0.0
Asp
2.462AspAla: 2.462 ± 0.088
0.482AspCys: 0.482 ± 0.035
3.994AspAsp: 3.994 ± 0.14
5.895AspGlu: 5.895 ± 0.133
2.924AspPhe: 2.924 ± 0.101
3.584AspGly: 3.584 ± 0.114
0.566AspHis: 0.566 ± 0.037
6.718AspIle: 6.718 ± 0.162
6.984AspLys: 6.984 ± 0.135
5.388AspLeu: 5.388 ± 0.137
1.527AspMet: 1.527 ± 0.065
5.259AspAsn: 5.259 ± 0.132
1.164AspPro: 1.164 ± 0.064
0.744AspGln: 0.744 ± 0.045
1.72AspArg: 1.72 ± 0.066
4.051AspSer: 4.051 ± 0.112
3.062AspThr: 3.062 ± 0.108
3.645AspVal: 3.645 ± 0.088
0.272AspTrp: 0.272 ± 0.026
3.878AspTyr: 3.878 ± 0.113
0.0AspXaa: 0.0 ± 0.0
Glu
2.911GluAla: 2.911 ± 0.113
0.608GluCys: 0.608 ± 0.042
4.439GluAsp: 4.439 ± 0.133
7.706GluGlu: 7.706 ± 0.231
2.986GluPhe: 2.986 ± 0.088
2.931GluGly: 2.931 ± 0.101
0.769GluHis: 0.769 ± 0.048
7.516GluIle: 7.516 ± 0.168
9.214GluLys: 9.214 ± 0.207
7.106GluLeu: 7.106 ± 0.159
1.977GluMet: 1.977 ± 0.075
7.115GluAsn: 7.115 ± 0.148
1.191GluPro: 1.191 ± 0.066
1.574GluGln: 1.574 ± 0.069
2.244GluArg: 2.244 ± 0.087
3.818GluSer: 3.818 ± 0.105
3.21GluThr: 3.21 ± 0.094
4.471GluVal: 4.471 ± 0.118
0.356GluTrp: 0.356 ± 0.033
4.454GluTyr: 4.454 ± 0.118
0.0GluXaa: 0.0 ± 0.0
Phe
1.653PheAla: 1.653 ± 0.065
0.487PheCys: 0.487 ± 0.035
3.114PheAsp: 3.114 ± 0.097
2.721PheGlu: 2.721 ± 0.096
1.629PhePhe: 1.629 ± 0.08
2.227PheGly: 2.227 ± 0.085
0.418PheHis: 0.418 ± 0.036
4.367PheIle: 4.367 ± 0.138
4.051PheLys: 4.051 ± 0.11
3.472PheLeu: 3.472 ± 0.132
0.979PheMet: 0.979 ± 0.059
3.512PheAsn: 3.512 ± 0.109
0.845PhePro: 0.845 ± 0.048
0.682PheGln: 0.682 ± 0.038
1.058PheArg: 1.058 ± 0.057
2.948PheSer: 2.948 ± 0.094
2.256PheThr: 2.256 ± 0.072
2.612PheVal: 2.612 ± 0.102
0.198PheTrp: 0.198 ± 0.026
2.012PheTyr: 2.012 ± 0.08
0.0PheXaa: 0.0 ± 0.0
Gly
2.454GlyAla: 2.454 ± 0.112
0.588GlyCys: 0.588 ± 0.042
2.83GlyAsp: 2.83 ± 0.112
3.542GlyGlu: 3.542 ± 0.11
2.336GlyPhe: 2.336 ± 0.094
3.02GlyGly: 3.02 ± 0.307
0.766GlyHis: 0.766 ± 0.043
5.316GlyIle: 5.316 ± 0.135
5.121GlyLys: 5.121 ± 0.117
4.078GlyLeu: 4.078 ± 0.126
1.176GlyMet: 1.176 ± 0.063
3.747GlyAsn: 3.747 ± 0.141
0.984GlyPro: 0.984 ± 0.09
0.892GlyGln: 0.892 ± 0.053
1.54GlyArg: 1.54 ± 0.063
3.369GlySer: 3.369 ± 0.125
3.24GlyThr: 3.24 ± 0.137
3.416GlyVal: 3.416 ± 0.11
0.329GlyTrp: 0.329 ± 0.046
3.257GlyTyr: 3.257 ± 0.113
0.0GlyXaa: 0.0 ± 0.0
His
0.571HisAla: 0.571 ± 0.04
0.104HisCys: 0.104 ± 0.018
0.685HisAsp: 0.685 ± 0.04
0.722HisGlu: 0.722 ± 0.042
0.507HisPhe: 0.507 ± 0.036
0.635HisGly: 0.635 ± 0.039
0.25HisHis: 0.25 ± 0.03
1.11HisIle: 1.11 ± 0.058
0.989HisLys: 0.989 ± 0.057
1.001HisLeu: 1.001 ± 0.054
0.269HisMet: 0.269 ± 0.026
0.813HisAsn: 0.813 ± 0.046
0.462HisPro: 0.462 ± 0.036
0.25HisGln: 0.25 ± 0.024
0.339HisArg: 0.339 ± 0.029
0.613HisSer: 0.613 ± 0.038
0.64HisThr: 0.64 ± 0.038
0.571HisVal: 0.571 ± 0.041
0.047HisTrp: 0.047 ± 0.012
0.62HisTyr: 0.62 ± 0.042
0.0HisXaa: 0.0 ± 0.0
Ile
3.814IleAla: 3.814 ± 0.098
1.132IleCys: 1.132 ± 0.061
7.195IleAsp: 7.195 ± 0.154
7.199IleGlu: 7.199 ± 0.164
4.006IlePhe: 4.006 ± 0.144
4.973IleGly: 4.973 ± 0.14
0.939IleHis: 0.939 ± 0.053
10.469IleIle: 10.469 ± 0.237
10.724IleLys: 10.724 ± 0.185
8.559IleLeu: 8.559 ± 0.19
2.18IleMet: 2.18 ± 0.091
8.685IleAsn: 8.685 ± 0.172
2.627IlePro: 2.627 ± 0.087
1.431IleGln: 1.431 ± 0.06
2.763IleArg: 2.763 ± 0.088
6.794IleSer: 6.794 ± 0.155
5.754IleThr: 5.754 ± 0.167
6.238IleVal: 6.238 ± 0.135
0.378IleTrp: 0.378 ± 0.027
4.814IleTyr: 4.814 ± 0.115
0.0IleXaa: 0.0 ± 0.0
Lys
3.329LysAla: 3.329 ± 0.111
0.979LysCys: 0.979 ± 0.056
7.185LysAsp: 7.185 ± 0.146
11.067LysGlu: 11.067 ± 0.243
3.492LysPhe: 3.492 ± 0.093
4.57LysGly: 4.57 ± 0.123
1.006LysHis: 1.006 ± 0.06
10.627LysIle: 10.627 ± 0.181
11.678LysLys: 11.678 ± 0.249
8.593LysLeu: 8.593 ± 0.169
2.746LysMet: 2.746 ± 0.094
9.149LysAsn: 9.149 ± 0.19
1.691LysPro: 1.691 ± 0.077
2.177LysGln: 2.177 ± 0.086
3.168LysArg: 3.168 ± 0.105
5.62LysSer: 5.62 ± 0.121
5.333LysThr: 5.333 ± 0.13
6.656LysVal: 6.656 ± 0.14
0.497LysTrp: 0.497 ± 0.034
6.552LysTyr: 6.552 ± 0.157
0.0LysXaa: 0.0 ± 0.0
Leu
3.295LeuAla: 3.295 ± 0.1
0.895LeuCys: 0.895 ± 0.048
5.786LeuAsp: 5.786 ± 0.133
6.334LeuGlu: 6.334 ± 0.154
3.89LeuPhe: 3.89 ± 0.13
4.362LeuGly: 4.362 ± 0.116
0.937LeuHis: 0.937 ± 0.057
8.265LeuIle: 8.265 ± 0.222
8.996LeuLys: 8.996 ± 0.186
7.543LeuLeu: 7.543 ± 0.22
1.856LeuMet: 1.856 ± 0.07
6.928LeuAsn: 6.928 ± 0.15
2.252LeuPro: 2.252 ± 0.089
1.441LeuGln: 1.441 ± 0.06
2.336LeuArg: 2.336 ± 0.084
6.871LeuSer: 6.871 ± 0.145
4.879LeuThr: 4.879 ± 0.139
4.975LeuVal: 4.975 ± 0.127
0.418LeuTrp: 0.418 ± 0.035
3.789LeuTyr: 3.789 ± 0.109
0.0LeuXaa: 0.0 ± 0.0
Met
0.979MetAla: 0.979 ± 0.056
0.269MetCys: 0.269 ± 0.027
1.478MetAsp: 1.478 ± 0.054
1.456MetGlu: 1.456 ± 0.067
1.018MetPhe: 1.018 ± 0.051
1.179MetGly: 1.179 ± 0.062
0.358MetHis: 0.358 ± 0.031
2.259MetIle: 2.259 ± 0.099
2.733MetLys: 2.733 ± 0.086
1.975MetLeu: 1.975 ± 0.076
0.519MetMet: 0.519 ± 0.04
1.851MetAsn: 1.851 ± 0.069
0.727MetPro: 0.727 ± 0.045
0.544MetGln: 0.544 ± 0.037
0.645MetArg: 0.645 ± 0.043
1.443MetSer: 1.443 ± 0.06
1.196MetThr: 1.196 ± 0.06
1.238MetVal: 1.238 ± 0.059
0.104MetTrp: 0.104 ± 0.016
1.05MetTyr: 1.05 ± 0.05
0.0MetXaa: 0.0 ± 0.0
Asn
3.119AsnAla: 3.119 ± 0.096
0.722AsnCys: 0.722 ± 0.048
5.116AsnAsp: 5.116 ± 0.131
6.542AsnGlu: 6.542 ± 0.147
3.062AsnPhe: 3.062 ± 0.088
4.419AsnGly: 4.419 ± 0.153
0.719AsnHis: 0.719 ± 0.038
8.823AsnIle: 8.823 ± 0.181
9.201AsnLys: 9.201 ± 0.164
6.517AsnLeu: 6.517 ± 0.12
2.086AsnMet: 2.086 ± 0.067
7.508AsnAsn: 7.508 ± 0.204
2.004AsnPro: 2.004 ± 0.067
1.438AsnGln: 1.438 ± 0.07
1.891AsnArg: 1.891 ± 0.068
5.141AsnSer: 5.141 ± 0.17
3.957AsnThr: 3.957 ± 0.137
4.926AsnVal: 4.926 ± 0.123
0.4AsnTrp: 0.4 ± 0.035
4.57AsnTyr: 4.57 ± 0.127
0.0AsnXaa: 0.0 ± 0.0
Pro
0.922ProAla: 0.922 ± 0.057
0.203ProCys: 0.203 ± 0.023
1.349ProAsp: 1.349 ± 0.062
1.75ProGlu: 1.75 ± 0.075
1.107ProPhe: 1.107 ± 0.059
1.083ProGly: 1.083 ± 0.062
0.311ProHis: 0.311 ± 0.028
2.125ProIle: 2.125 ± 0.084
2.168ProLys: 2.168 ± 0.071
1.673ProLeu: 1.673 ± 0.071
0.447ProMet: 0.447 ± 0.034
1.611ProAsn: 1.611 ± 0.062
0.299ProPro: 0.299 ± 0.028
0.376ProGln: 0.376 ± 0.034
0.628ProArg: 0.628 ± 0.041
1.634ProSer: 1.634 ± 0.065
1.349ProThr: 1.349 ± 0.084
1.545ProVal: 1.545 ± 0.061
0.119ProTrp: 0.119 ± 0.02
1.26ProTyr: 1.26 ± 0.055
0.0ProXaa: 0.0 ± 0.0
Gln
0.83GlnAla: 0.83 ± 0.049
0.096GlnCys: 0.096 ± 0.016
0.964GlnAsp: 0.964 ± 0.044
1.238GlnGlu: 1.238 ± 0.075
0.625GlnPhe: 0.625 ± 0.041
0.922GlnGly: 0.922 ± 0.068
0.141GlnHis: 0.141 ± 0.019
2.069GlnIle: 2.069 ± 0.081
2.091GlnLys: 2.091 ± 0.082
1.3GlnLeu: 1.3 ± 0.058
0.568GlnMet: 0.568 ± 0.04
1.723GlnAsn: 1.723 ± 0.07
0.306GlnPro: 0.306 ± 0.03
0.311GlnGln: 0.311 ± 0.032
0.704GlnArg: 0.704 ± 0.048
1.07GlnSer: 1.07 ± 0.069
1.018GlnThr: 1.018 ± 0.06
0.989GlnVal: 0.989 ± 0.048
0.087GlnTrp: 0.087 ± 0.014
0.749GlnTyr: 0.749 ± 0.05
0.0GlnXaa: 0.0 ± 0.0
Arg
1.105ArgAla: 1.105 ± 0.063
0.346ArgCys: 0.346 ± 0.032
1.555ArgAsp: 1.555 ± 0.068
2.328ArgGlu: 2.328 ± 0.082
1.181ArgPhe: 1.181 ± 0.062
1.349ArgGly: 1.349 ± 0.068
0.378ArgHis: 0.378 ± 0.035
2.701ArgIle: 2.701 ± 0.087
3.21ArgLys: 3.21 ± 0.095
2.437ArgLeu: 2.437 ± 0.091
0.808ArgMet: 0.808 ± 0.055
2.145ArgAsn: 2.145 ± 0.077
0.648ArgPro: 0.648 ± 0.045
0.657ArgGln: 0.657 ± 0.048
1.112ArgArg: 1.112 ± 0.054
1.337ArgSer: 1.337 ± 0.059
1.406ArgThr: 1.406 ± 0.062
2.024ArgVal: 2.024 ± 0.067
0.161ArgTrp: 0.161 ± 0.022
1.505ArgTyr: 1.505 ± 0.062
0.0ArgXaa: 0.0 ± 0.0
Ser
2.706SerAla: 2.706 ± 0.092
0.578SerCys: 0.578 ± 0.038
4.476SerAsp: 4.476 ± 0.123
4.342SerGlu: 4.342 ± 0.098
2.892SerPhe: 2.892 ± 0.084
3.922SerGly: 3.922 ± 0.182
0.796SerHis: 0.796 ± 0.048
6.344SerIle: 6.344 ± 0.123
6.955SerLys: 6.955 ± 0.143
5.833SerLeu: 5.833 ± 0.136
1.406SerMet: 1.406 ± 0.068
5.237SerAsn: 5.237 ± 0.143
1.305SerPro: 1.305 ± 0.063
1.159SerGln: 1.159 ± 0.06
1.851SerArg: 1.851 ± 0.068
5.249SerSer: 5.249 ± 0.2
3.435SerThr: 3.435 ± 0.136
3.841SerVal: 3.841 ± 0.119
0.353SerTrp: 0.353 ± 0.033
3.396SerTyr: 3.396 ± 0.113
0.0SerXaa: 0.0 ± 0.0
Thr
2.022ThrAla: 2.022 ± 0.095
0.517ThrCys: 0.517 ± 0.041
3.346ThrAsp: 3.346 ± 0.101
3.307ThrGlu: 3.307 ± 0.104
2.298ThrPhe: 2.298 ± 0.103
3.707ThrGly: 3.707 ± 0.143
0.591ThrHis: 0.591 ± 0.044
5.418ThrIle: 5.418 ± 0.15
5.415ThrLys: 5.415 ± 0.133
5.032ThrLeu: 5.032 ± 0.164
0.952ThrMet: 0.952 ± 0.058
3.932ThrAsn: 3.932 ± 0.122
1.453ThrPro: 1.453 ± 0.067
0.934ThrGln: 0.934 ± 0.054
1.382ThrArg: 1.382 ± 0.065
3.784ThrSer: 3.784 ± 0.162
3.129ThrThr: 3.129 ± 0.151
3.636ThrVal: 3.636 ± 0.189
0.294ThrTrp: 0.294 ± 0.029
2.837ThrTyr: 2.837 ± 0.116
0.0ThrXaa: 0.0 ± 0.0
Val
2.333ValAla: 2.333 ± 0.08
0.687ValCys: 0.687 ± 0.044
3.836ValAsp: 3.836 ± 0.104
3.537ValGlu: 3.537 ± 0.103
2.514ValPhe: 2.514 ± 0.096
3.154ValGly: 3.154 ± 0.091
0.756ValHis: 0.756 ± 0.046
6.315ValIle: 6.315 ± 0.133
5.835ValLys: 5.835 ± 0.113
5.558ValLeu: 5.558 ± 0.142
1.216ValMet: 1.216 ± 0.055
4.671ValAsn: 4.671 ± 0.113
1.762ValPro: 1.762 ± 0.077
1.031ValGln: 1.031 ± 0.048
1.772ValArg: 1.772 ± 0.07
4.735ValSer: 4.735 ± 0.127
4.058ValThr: 4.058 ± 0.217
4.029ValVal: 4.029 ± 0.125
0.292ValTrp: 0.292 ± 0.024
2.899ValTyr: 2.899 ± 0.086
0.0ValXaa: 0.0 ± 0.0
Trp
0.188TrpAla: 0.188 ± 0.021
0.079TrpCys: 0.079 ± 0.014
0.247TrpAsp: 0.247 ± 0.025
0.289TrpGlu: 0.289 ± 0.028
0.284TrpPhe: 0.284 ± 0.025
0.235TrpGly: 0.235 ± 0.025
0.074TrpHis: 0.074 ± 0.012
0.477TrpIle: 0.477 ± 0.037
0.376TrpLys: 0.376 ± 0.033
0.452TrpLeu: 0.452 ± 0.038
0.121TrpMet: 0.121 ± 0.017
0.457TrpAsn: 0.457 ± 0.037
0.091TrpPro: 0.091 ± 0.017
0.136TrpGln: 0.136 ± 0.02
0.126TrpArg: 0.126 ± 0.016
0.339TrpSer: 0.339 ± 0.033
0.242TrpThr: 0.242 ± 0.028
0.232TrpVal: 0.232 ± 0.027
0.044TrpTrp: 0.044 ± 0.01
0.336TrpTyr: 0.336 ± 0.028
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.224TyrAla: 2.224 ± 0.08
0.601TyrCys: 0.601 ± 0.042
4.051TyrAsp: 4.051 ± 0.106
3.796TyrGlu: 3.796 ± 0.115
2.323TyrPhe: 2.323 ± 0.086
2.654TyrGly: 2.654 ± 0.095
0.68TyrHis: 0.68 ± 0.044
4.918TyrIle: 4.918 ± 0.115
5.277TyrLys: 5.277 ± 0.139
4.726TyrLeu: 4.726 ± 0.124
1.152TyrMet: 1.152 ± 0.052
4.582TyrAsn: 4.582 ± 0.133
1.065TyrPro: 1.065 ± 0.053
1.06TyrGln: 1.06 ± 0.05
1.424TyrArg: 1.424 ± 0.067
3.707TyrSer: 3.707 ± 0.099
3.025TyrThr: 3.025 ± 0.145
2.899TyrVal: 2.899 ± 0.092
0.232TyrTrp: 0.232 ± 0.031
2.995TyrTyr: 2.995 ± 0.1
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 1308 proteins (404614 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