Amino acid dipepetide frequency for Brachyspira sp. CAG:484

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
5.528AlaAla: 5.528 ± 0.138
0.991AlaCys: 0.991 ± 0.043
3.927AlaAsp: 3.927 ± 0.073
5.064AlaGlu: 5.064 ± 0.101
2.938AlaPhe: 2.938 ± 0.079
5.173AlaGly: 5.173 ± 0.14
1.057AlaHis: 1.057 ± 0.042
5.249AlaIle: 5.249 ± 0.094
6.08AlaLys: 6.08 ± 0.106
6.724AlaLeu: 6.724 ± 0.107
1.954AlaMet: 1.954 ± 0.063
3.342AlaAsn: 3.342 ± 0.091
2.087AlaPro: 2.087 ± 0.064
2.762AlaGln: 2.762 ± 0.081
2.541AlaArg: 2.541 ± 0.066
4.05AlaSer: 4.05 ± 0.108
2.924AlaThr: 2.924 ± 0.075
5.036AlaVal: 5.036 ± 0.101
0.4AlaTrp: 0.4 ± 0.024
2.474AlaTyr: 2.474 ± 0.067
0.0AlaXaa: 0.0 ± 0.0
Cys
1.003CysAla: 1.003 ± 0.04
0.221CysCys: 0.221 ± 0.02
0.725CysAsp: 0.725 ± 0.037
0.883CysGlu: 0.883 ± 0.039
0.56CysPhe: 0.56 ± 0.032
1.257CysGly: 1.257 ± 0.063
0.202CysHis: 0.202 ± 0.018
0.965CysIle: 0.965 ± 0.037
1.049CysLys: 1.049 ± 0.038
0.894CysLeu: 0.894 ± 0.034
0.287CysMet: 0.287 ± 0.024
0.629CysAsn: 0.629 ± 0.032
0.629CysPro: 0.629 ± 0.035
0.296CysGln: 0.296 ± 0.019
0.434CysArg: 0.434 ± 0.025
0.945CysSer: 0.945 ± 0.039
0.721CysThr: 0.721 ± 0.033
0.771CysVal: 0.771 ± 0.037
0.11CysTrp: 0.11 ± 0.013
0.529CysTyr: 0.529 ± 0.028
0.0CysXaa: 0.0 ± 0.0
Asp
3.802AspAla: 3.802 ± 0.089
0.804AspCys: 0.804 ± 0.038
3.067AspAsp: 3.067 ± 0.078
4.548AspGlu: 4.548 ± 0.112
3.263AspPhe: 3.263 ± 0.083
3.855AspGly: 3.855 ± 0.093
0.468AspHis: 0.468 ± 0.028
5.294AspIle: 5.294 ± 0.091
5.502AspLys: 5.502 ± 0.097
4.805AspLeu: 4.805 ± 0.085
1.512AspMet: 1.512 ± 0.048
3.381AspAsn: 3.381 ± 0.083
1.288AspPro: 1.288 ± 0.045
0.784AspGln: 0.784 ± 0.042
1.856AspArg: 1.856 ± 0.049
2.54AspSer: 2.54 ± 0.071
2.737AspThr: 2.737 ± 0.063
3.65AspVal: 3.65 ± 0.084
0.521AspTrp: 0.521 ± 0.031
3.082AspTyr: 3.082 ± 0.071
0.0AspXaa: 0.0 ± 0.0
Glu
4.74GluAla: 4.74 ± 0.088
0.676GluCys: 0.676 ± 0.033
3.831GluAsp: 3.831 ± 0.089
5.334GluGlu: 5.334 ± 0.123
3.277GluPhe: 3.277 ± 0.078
3.168GluGly: 3.168 ± 0.068
1.149GluHis: 1.149 ± 0.044
6.295GluIle: 6.295 ± 0.116
7.157GluLys: 7.157 ± 0.141
6.678GluLeu: 6.678 ± 0.116
1.78GluMet: 1.78 ± 0.053
5.168GluAsn: 5.168 ± 0.113
1.757GluPro: 1.757 ± 0.063
2.446GluGln: 2.446 ± 0.073
2.563GluArg: 2.563 ± 0.074
2.494GluSer: 2.494 ± 0.068
3.573GluThr: 3.573 ± 0.076
3.995GluVal: 3.995 ± 0.084
0.475GluTrp: 0.475 ± 0.026
2.908GluTyr: 2.908 ± 0.07
0.0GluXaa: 0.0 ± 0.0
Phe
3.121PheAla: 3.121 ± 0.077
0.65PheCys: 0.65 ± 0.031
3.001PheAsp: 3.001 ± 0.068
3.161PheGlu: 3.161 ± 0.075
1.886PhePhe: 1.886 ± 0.066
2.779PheGly: 2.779 ± 0.073
0.609PheHis: 0.609 ± 0.033
3.529PheIle: 3.529 ± 0.096
3.696PheLys: 3.696 ± 0.081
3.935PheLeu: 3.935 ± 0.097
1.196PheMet: 1.196 ± 0.045
2.717PheAsn: 2.717 ± 0.07
1.213PhePro: 1.213 ± 0.043
1.207PheGln: 1.207 ± 0.043
1.406PheArg: 1.406 ± 0.049
3.053PheSer: 3.053 ± 0.073
2.483PheThr: 2.483 ± 0.06
2.823PheVal: 2.823 ± 0.065
0.385PheTrp: 0.385 ± 0.026
1.966PheTyr: 1.966 ± 0.066
0.0PheXaa: 0.0 ± 0.0
Gly
4.495GlyAla: 4.495 ± 0.115
1.067GlyCys: 1.067 ± 0.05
2.97GlyAsp: 2.97 ± 0.073
3.645GlyGlu: 3.645 ± 0.08
2.95GlyPhe: 2.95 ± 0.075
4.202GlyGly: 4.202 ± 0.135
1.103GlyHis: 1.103 ± 0.041
5.401GlyIle: 5.401 ± 0.105
5.223GlyLys: 5.223 ± 0.091
5.315GlyLeu: 5.315 ± 0.093
1.675GlyMet: 1.675 ± 0.054
3.145GlyAsn: 3.145 ± 0.083
1.101GlyPro: 1.101 ± 0.049
1.638GlyGln: 1.638 ± 0.048
2.291GlyArg: 2.291 ± 0.063
3.791GlySer: 3.791 ± 0.113
3.503GlyThr: 3.503 ± 0.097
4.078GlyVal: 4.078 ± 0.105
0.629GlyTrp: 0.629 ± 0.034
2.684GlyTyr: 2.684 ± 0.075
0.0GlyXaa: 0.0 ± 0.0
His
0.949HisAla: 0.949 ± 0.047
0.271HisCys: 0.271 ± 0.019
0.797HisAsp: 0.797 ± 0.032
0.857HisGlu: 0.857 ± 0.041
0.725HisPhe: 0.725 ± 0.036
0.877HisGly: 0.877 ± 0.04
0.284HisHis: 0.284 ± 0.022
1.201HisIle: 1.201 ± 0.051
1.242HisLys: 1.242 ± 0.047
1.288HisLeu: 1.288 ± 0.047
0.334HisMet: 0.334 ± 0.024
0.914HisAsn: 0.914 ± 0.038
0.81HisPro: 0.81 ± 0.036
0.429HisGln: 0.429 ± 0.027
0.534HisArg: 0.534 ± 0.03
0.94HisSer: 0.94 ± 0.04
0.802HisThr: 0.802 ± 0.039
0.751HisVal: 0.751 ± 0.033
0.13HisTrp: 0.13 ± 0.016
0.675HisTyr: 0.675 ± 0.033
0.0HisXaa: 0.0 ± 0.0
Ile
5.705IleAla: 5.705 ± 0.104
1.064IleCys: 1.064 ± 0.047
4.979IleAsp: 4.979 ± 0.097
5.662IleGlu: 5.662 ± 0.106
3.463IlePhe: 3.463 ± 0.1
4.541IleGly: 4.541 ± 0.104
1.064IleHis: 1.064 ± 0.039
6.41IleIle: 6.41 ± 0.124
7.316IleLys: 7.316 ± 0.126
7.166IleLeu: 7.166 ± 0.133
1.757IleMet: 1.757 ± 0.057
5.318IleAsn: 5.318 ± 0.132
3.089IlePro: 3.089 ± 0.076
2.421IleGln: 2.421 ± 0.067
2.816IleArg: 2.816 ± 0.073
5.594IleSer: 5.594 ± 0.105
4.759IleThr: 4.759 ± 0.093
4.535IleVal: 4.535 ± 0.09
0.462IleTrp: 0.462 ± 0.029
2.763IleTyr: 2.763 ± 0.076
0.0IleXaa: 0.0 ± 0.0
Lys
5.818LysAla: 5.818 ± 0.122
0.966LysCys: 0.966 ± 0.044
5.291LysAsp: 5.291 ± 0.101
6.623LysGlu: 6.623 ± 0.122
3.636LysPhe: 3.636 ± 0.079
4.285LysGly: 4.285 ± 0.087
1.403LysHis: 1.403 ± 0.049
7.462LysIle: 7.462 ± 0.115
7.994LysLys: 7.994 ± 0.139
7.657LysLeu: 7.657 ± 0.13
2.388LysMet: 2.388 ± 0.071
6.324LysAsn: 6.324 ± 0.107
2.96LysPro: 2.96 ± 0.07
3.082LysGln: 3.082 ± 0.08
2.995LysArg: 2.995 ± 0.071
5.045LysSer: 5.045 ± 0.089
5.196LysThr: 5.196 ± 0.093
4.874LysVal: 4.874 ± 0.092
0.563LysTrp: 0.563 ± 0.028
4.266LysTyr: 4.266 ± 0.099
0.0LysXaa: 0.0 ± 0.0
Leu
6.642LeuAla: 6.642 ± 0.108
1.139LeuCys: 1.139 ± 0.049
4.944LeuAsp: 4.944 ± 0.087
6.119LeuGlu: 6.119 ± 0.111
3.599LeuPhe: 3.599 ± 0.09
5.63LeuGly: 5.63 ± 0.105
1.415LeuHis: 1.415 ± 0.048
6.787LeuIle: 6.787 ± 0.13
8.718LeuLys: 8.718 ± 0.128
7.428LeuLeu: 7.428 ± 0.156
2.204LeuMet: 2.204 ± 0.061
5.406LeuAsn: 5.406 ± 0.092
3.575LeuPro: 3.575 ± 0.072
2.782LeuGln: 2.782 ± 0.066
3.102LeuArg: 3.102 ± 0.075
6.151LeuSer: 6.151 ± 0.122
5.12LeuThr: 5.12 ± 0.099
4.663LeuVal: 4.663 ± 0.086
0.528LeuTrp: 0.528 ± 0.033
3.078LeuTyr: 3.078 ± 0.065
0.0LeuXaa: 0.0 ± 0.0
Met
1.86MetAla: 1.86 ± 0.06
0.256MetCys: 0.256 ± 0.02
1.391MetAsp: 1.391 ± 0.046
1.5MetGlu: 1.5 ± 0.052
1.081MetPhe: 1.081 ± 0.044
1.46MetGly: 1.46 ± 0.048
0.282MetHis: 0.282 ± 0.021
1.736MetIle: 1.736 ± 0.057
2.397MetLys: 2.397 ± 0.064
2.372MetLeu: 2.372 ± 0.065
0.722MetMet: 0.722 ± 0.04
1.512MetAsn: 1.512 ± 0.046
1.136MetPro: 1.136 ± 0.042
1.032MetGln: 1.032 ± 0.042
0.994MetArg: 0.994 ± 0.039
1.639MetSer: 1.639 ± 0.048
1.598MetThr: 1.598 ± 0.048
1.257MetVal: 1.257 ± 0.046
0.166MetTrp: 0.166 ± 0.017
0.854MetTyr: 0.854 ± 0.038
0.0MetXaa: 0.0 ± 0.0
Asn
3.961AsnAla: 3.961 ± 0.119
0.856AsnCys: 0.856 ± 0.032
2.845AsnAsp: 2.845 ± 0.074
3.48AsnGlu: 3.48 ± 0.085
2.903AsnPhe: 2.903 ± 0.077
3.973AsnGly: 3.973 ± 0.114
0.777AsnHis: 0.777 ± 0.038
5.55AsnIle: 5.55 ± 0.13
5.166AsnLys: 5.166 ± 0.09
5.502AsnLeu: 5.502 ± 0.096
1.471AsnMet: 1.471 ± 0.048
4.038AsnAsn: 4.038 ± 0.15
2.966AsnPro: 2.966 ± 0.079
1.871AsnGln: 1.871 ± 0.061
2.0AsnArg: 2.0 ± 0.059
4.055AsnSer: 4.055 ± 0.128
3.363AsnThr: 3.363 ± 0.098
3.411AsnVal: 3.411 ± 0.098
0.523AsnTrp: 0.523 ± 0.028
2.725AsnTyr: 2.725 ± 0.07
0.0AsnXaa: 0.0 ± 0.0
Pro
2.671ProAla: 2.671 ± 0.062
0.368ProCys: 0.368 ± 0.026
2.555ProAsp: 2.555 ± 0.062
3.233ProGlu: 3.233 ± 0.092
1.481ProPhe: 1.481 ± 0.047
1.526ProGly: 1.526 ± 0.052
0.543ProHis: 0.543 ± 0.029
2.001ProIle: 2.001 ± 0.056
2.536ProLys: 2.536 ± 0.067
2.705ProLeu: 2.705 ± 0.074
0.765ProMet: 0.765 ± 0.035
1.888ProAsn: 1.888 ± 0.059
0.995ProPro: 0.995 ± 0.051
1.504ProGln: 1.504 ± 0.061
0.928ProArg: 0.928 ± 0.037
1.968ProSer: 1.968 ± 0.053
1.474ProThr: 1.474 ± 0.053
3.055ProVal: 3.055 ± 0.069
0.267ProTrp: 0.267 ± 0.023
1.535ProTyr: 1.535 ± 0.054
0.0ProXaa: 0.0 ± 0.0
Gln
2.457GlnAla: 2.457 ± 0.085
0.296GlnCys: 0.296 ± 0.02
1.604GlnAsp: 1.604 ± 0.041
2.306GlnGlu: 2.306 ± 0.069
1.204GlnPhe: 1.204 ± 0.047
1.647GlnGly: 1.647 ± 0.048
0.472GlnHis: 0.472 ± 0.029
2.607GlnIle: 2.607 ± 0.064
3.211GlnLys: 3.211 ± 0.078
2.74GlnLeu: 2.74 ± 0.068
0.908GlnMet: 0.908 ± 0.037
2.403GlnAsn: 2.403 ± 0.073
1.046GlnPro: 1.046 ± 0.05
1.415GlnGln: 1.415 ± 0.057
1.215GlnArg: 1.215 ± 0.044
1.787GlnSer: 1.787 ± 0.06
1.828GlnThr: 1.828 ± 0.054
1.721GlnVal: 1.721 ± 0.054
0.179GlnTrp: 0.179 ± 0.016
1.188GlnTyr: 1.188 ± 0.048
0.0GlnXaa: 0.0 ± 0.0
Arg
2.339ArgAla: 2.339 ± 0.066
0.48ArgCys: 0.48 ± 0.029
1.779ArgAsp: 1.779 ± 0.053
2.624ArgGlu: 2.624 ± 0.071
1.718ArgPhe: 1.718 ± 0.055
1.971ArgGly: 1.971 ± 0.061
0.566ArgHis: 0.566 ± 0.032
3.084ArgIle: 3.084 ± 0.084
3.043ArgLys: 3.043 ± 0.08
3.217ArgLeu: 3.217 ± 0.082
0.968ArgMet: 0.968 ± 0.043
2.101ArgAsn: 2.101 ± 0.064
1.126ArgPro: 1.126 ± 0.045
1.271ArgGln: 1.271 ± 0.045
1.448ArgArg: 1.448 ± 0.047
1.653ArgSer: 1.653 ± 0.06
1.78ArgThr: 1.78 ± 0.052
2.119ArgVal: 2.119 ± 0.071
0.273ArgTrp: 0.273 ± 0.02
1.484ArgTyr: 1.484 ± 0.047
0.0ArgXaa: 0.0 ± 0.0
Ser
4.214SerAla: 4.214 ± 0.087
0.724SerCys: 0.724 ± 0.042
3.492SerAsp: 3.492 ± 0.093
3.99SerGlu: 3.99 ± 0.089
2.753SerPhe: 2.753 ± 0.085
4.406SerGly: 4.406 ± 0.11
0.954SerHis: 0.954 ± 0.037
4.696SerIle: 4.696 ± 0.087
4.857SerLys: 4.857 ± 0.093
5.212SerLeu: 5.212 ± 0.09
1.538SerMet: 1.538 ± 0.046
3.306SerAsn: 3.306 ± 0.102
1.978SerPro: 1.978 ± 0.055
2.191SerGln: 2.191 ± 0.062
2.214SerArg: 2.214 ± 0.062
4.079SerSer: 4.079 ± 0.105
3.059SerThr: 3.059 ± 0.088
3.926SerVal: 3.926 ± 0.091
0.454SerTrp: 0.454 ± 0.028
2.429SerTyr: 2.429 ± 0.056
0.0SerXaa: 0.0 ± 0.0
Thr
3.987ThrAla: 3.987 ± 0.094
0.558ThrCys: 0.558 ± 0.029
3.115ThrAsp: 3.115 ± 0.081
3.358ThrGlu: 3.358 ± 0.078
2.268ThrPhe: 2.268 ± 0.062
3.967ThrGly: 3.967 ± 0.096
0.856ThrHis: 0.856 ± 0.04
4.11ThrIle: 4.11 ± 0.093
4.148ThrLys: 4.148 ± 0.081
5.231ThrLeu: 5.231 ± 0.097
1.118ThrMet: 1.118 ± 0.042
2.779ThrAsn: 2.779 ± 0.084
2.405ThrPro: 2.405 ± 0.067
1.658ThrGln: 1.658 ± 0.051
1.935ThrArg: 1.935 ± 0.05
3.457ThrSer: 3.457 ± 0.076
2.964ThrThr: 2.964 ± 0.088
3.544ThrVal: 3.544 ± 0.085
0.354ThrTrp: 0.354 ± 0.024
1.949ThrTyr: 1.949 ± 0.056
0.002ThrXaa: 0.002 ± 0.001
Val
4.016ValAla: 4.016 ± 0.09
0.908ValCys: 0.908 ± 0.038
3.426ValAsp: 3.426 ± 0.078
4.059ValGlu: 4.059 ± 0.084
2.753ValPhe: 2.753 ± 0.071
3.254ValGly: 3.254 ± 0.091
0.805ValHis: 0.805 ± 0.036
4.953ValIle: 4.953 ± 0.1
5.366ValLys: 5.366 ± 0.098
5.671ValLeu: 5.671 ± 0.107
1.563ValMet: 1.563 ± 0.051
3.78ValAsn: 3.78 ± 0.124
2.153ValPro: 2.153 ± 0.06
1.908ValGln: 1.908 ± 0.057
2.012ValArg: 2.012 ± 0.071
4.081ValSer: 4.081 ± 0.086
3.319ValThr: 3.319 ± 0.084
3.792ValVal: 3.792 ± 0.087
0.413ValTrp: 0.413 ± 0.027
2.262ValTyr: 2.262 ± 0.059
0.0ValXaa: 0.0 ± 0.0
Trp
0.497TrpAla: 0.497 ± 0.029
0.127TrpCys: 0.127 ± 0.014
0.469TrpAsp: 0.469 ± 0.026
0.469TrpGlu: 0.469 ± 0.03
0.363TrpPhe: 0.363 ± 0.024
0.505TrpGly: 0.505 ± 0.029
0.179TrpHis: 0.179 ± 0.019
0.524TrpIle: 0.524 ± 0.028
0.508TrpLys: 0.508 ± 0.031
0.751TrpLeu: 0.751 ± 0.041
0.238TrpMet: 0.238 ± 0.019
0.426TrpAsn: 0.426 ± 0.026
0.135TrpPro: 0.135 ± 0.016
0.324TrpGln: 0.324 ± 0.021
0.267TrpArg: 0.267 ± 0.022
0.357TrpSer: 0.357 ± 0.025
0.34TrpThr: 0.34 ± 0.024
0.423TrpVal: 0.423 ± 0.029
0.087TrpTrp: 0.087 ± 0.011
0.339TrpTyr: 0.339 ± 0.024
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.497TyrAla: 2.497 ± 0.061
0.687TyrCys: 0.687 ± 0.034
2.55TyrAsp: 2.55 ± 0.067
2.549TyrGlu: 2.549 ± 0.072
1.994TyrPhe: 1.994 ± 0.065
2.431TyrGly: 2.431 ± 0.065
0.624TyrHis: 0.624 ± 0.03
3.03TyrIle: 3.03 ± 0.069
3.618TyrLys: 3.618 ± 0.097
3.736TyrLeu: 3.736 ± 0.083
0.868TyrMet: 0.868 ± 0.044
2.855TyrAsn: 2.855 ± 0.074
1.55TyrPro: 1.55 ± 0.055
1.213TyrGln: 1.213 ± 0.042
1.494TyrArg: 1.494 ± 0.05
2.796TyrSer: 2.796 ± 0.068
2.219TyrThr: 2.219 ± 0.052
2.07TyrVal: 2.07 ± 0.055
0.411TyrTrp: 0.411 ± 0.025
1.882TyrTyr: 1.882 ± 0.073
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
0.002XaaAsn: 0.002 ± 0.001
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
0.003XaaXaa: 0.003 ± 0.003
Statistics based on 2216 proteins (652095 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