Amino acid dipepetide frequency for Rickettsiaceae bacterium

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
6.022AlaAla: 6.022 ± 0.168
0.878AlaCys: 0.878 ± 0.044
3.198AlaAsp: 3.198 ± 0.09
3.796AlaGlu: 3.796 ± 0.096
2.819AlaPhe: 2.819 ± 0.079
4.569AlaGly: 4.569 ± 0.149
1.463AlaHis: 1.463 ± 0.061
6.078AlaIle: 6.078 ± 0.125
4.976AlaLys: 4.976 ± 0.122
6.746AlaLeu: 6.746 ± 0.148
1.668AlaMet: 1.668 ± 0.063
3.453AlaAsn: 3.453 ± 0.092
2.43AlaPro: 2.43 ± 0.099
2.836AlaGln: 2.836 ± 0.093
3.06AlaArg: 3.06 ± 0.092
4.66AlaSer: 4.66 ± 0.105
3.873AlaThr: 3.873 ± 0.096
4.231AlaVal: 4.231 ± 0.111
0.546AlaTrp: 0.546 ± 0.036
2.083AlaTyr: 2.083 ± 0.065
0.0AlaXaa: 0.0 ± 0.0
Cys
0.677CysAla: 0.677 ± 0.039
0.205CysCys: 0.205 ± 0.026
0.563CysAsp: 0.563 ± 0.033
0.476CysGlu: 0.476 ± 0.034
0.619CysPhe: 0.619 ± 0.036
0.826CysGly: 0.826 ± 0.044
0.277CysHis: 0.277 ± 0.025
0.876CysIle: 0.876 ± 0.04
0.706CysLys: 0.706 ± 0.042
1.182CysLeu: 1.182 ± 0.05
0.215CysMet: 0.215 ± 0.022
0.604CysAsn: 0.604 ± 0.036
0.486CysPro: 0.486 ± 0.042
0.468CysGln: 0.468 ± 0.03
0.509CysArg: 0.509 ± 0.038
0.857CysSer: 0.857 ± 0.048
0.553CysThr: 0.553 ± 0.029
0.687CysVal: 0.687 ± 0.044
0.124CysTrp: 0.124 ± 0.017
0.451CysTyr: 0.451 ± 0.037
0.0CysXaa: 0.0 ± 0.0
Asp
2.72AspAla: 2.72 ± 0.079
0.576AspCys: 0.576 ± 0.039
2.405AspAsp: 2.405 ± 0.088
2.886AspGlu: 2.886 ± 0.085
2.581AspPhe: 2.581 ± 0.063
2.441AspGly: 2.441 ± 0.088
1.199AspHis: 1.199 ± 0.052
4.492AspIle: 4.492 ± 0.108
3.633AspLys: 3.633 ± 0.085
5.076AspLeu: 5.076 ± 0.112
1.023AspMet: 1.023 ± 0.056
3.002AspAsn: 3.002 ± 0.092
1.557AspPro: 1.557 ± 0.054
2.269AspGln: 2.269 ± 0.074
2.018AspArg: 2.018 ± 0.074
3.235AspSer: 3.235 ± 0.092
2.207AspThr: 2.207 ± 0.066
2.726AspVal: 2.726 ± 0.079
0.466AspTrp: 0.466 ± 0.03
1.989AspTyr: 1.989 ± 0.07
0.0AspXaa: 0.0 ± 0.0
Glu
3.788GluAla: 3.788 ± 0.095
0.439GluCys: 0.439 ± 0.032
2.534GluAsp: 2.534 ± 0.074
3.691GluGlu: 3.691 ± 0.141
2.408GluPhe: 2.408 ± 0.069
2.826GluGly: 2.826 ± 0.083
1.24GluHis: 1.24 ± 0.042
4.954GluIle: 4.954 ± 0.11
4.072GluLys: 4.072 ± 0.105
5.658GluLeu: 5.658 ± 0.125
1.298GluMet: 1.298 ± 0.056
3.217GluAsn: 3.217 ± 0.085
1.474GluPro: 1.474 ± 0.066
2.851GluGln: 2.851 ± 0.083
2.403GluArg: 2.403 ± 0.087
3.142GluSer: 3.142 ± 0.091
2.343GluThr: 2.343 ± 0.066
3.405GluVal: 3.405 ± 0.092
0.455GluTrp: 0.455 ± 0.031
1.921GluTyr: 1.921 ± 0.069
0.0GluXaa: 0.0 ± 0.0
Phe
3.517PheAla: 3.517 ± 0.099
0.716PheCys: 0.716 ± 0.041
2.774PheAsp: 2.774 ± 0.077
2.383PheGlu: 2.383 ± 0.077
3.099PhePhe: 3.099 ± 0.122
3.136PheGly: 3.136 ± 0.089
0.867PheHis: 0.867 ± 0.041
4.378PheIle: 4.378 ± 0.107
2.904PheLys: 2.904 ± 0.086
5.018PheLeu: 5.018 ± 0.149
1.008PheMet: 1.008 ± 0.049
2.602PheAsn: 2.602 ± 0.081
1.389PhePro: 1.389 ± 0.049
1.319PheGln: 1.319 ± 0.053
1.656PheArg: 1.656 ± 0.067
3.763PheSer: 3.763 ± 0.112
2.681PheThr: 2.681 ± 0.081
3.062PheVal: 3.062 ± 0.088
0.561PheTrp: 0.561 ± 0.037
1.884PheTyr: 1.884 ± 0.056
0.0PheXaa: 0.0 ± 0.0
Gly
3.943GlyAla: 3.943 ± 0.132
0.758GlyCys: 0.758 ± 0.045
2.501GlyAsp: 2.501 ± 0.072
2.749GlyGlu: 2.749 ± 0.082
3.146GlyPhe: 3.146 ± 0.09
3.807GlyGly: 3.807 ± 0.124
1.329GlyHis: 1.329 ± 0.051
5.121GlyIle: 5.121 ± 0.097
3.931GlyLys: 3.931 ± 0.097
5.924GlyLeu: 5.924 ± 0.144
1.507GlyMet: 1.507 ± 0.062
2.708GlyAsn: 2.708 ± 0.099
1.536GlyPro: 1.536 ± 0.059
2.304GlyGln: 2.304 ± 0.06
2.554GlyArg: 2.554 ± 0.083
3.919GlySer: 3.919 ± 0.096
3.024GlyThr: 3.024 ± 0.075
3.755GlyVal: 3.755 ± 0.107
0.718GlyTrp: 0.718 ± 0.043
2.229GlyTyr: 2.229 ± 0.118
0.0GlyXaa: 0.0 ± 0.0
His
1.354HisAla: 1.354 ± 0.068
0.267HisCys: 0.267 ± 0.023
0.973HisAsp: 0.973 ± 0.048
0.992HisGlu: 0.992 ± 0.04
1.194HisPhe: 1.194 ± 0.056
1.232HisGly: 1.232 ± 0.045
0.65HisHis: 0.65 ± 0.043
1.569HisIle: 1.569 ± 0.072
1.306HisLys: 1.306 ± 0.047
2.203HisLeu: 2.203 ± 0.074
0.441HisMet: 0.441 ± 0.026
1.234HisAsn: 1.234 ± 0.048
0.892HisPro: 0.892 ± 0.042
1.041HisGln: 1.041 ± 0.045
0.909HisArg: 0.909 ± 0.049
1.428HisSer: 1.428 ± 0.058
1.078HisThr: 1.078 ± 0.046
1.165HisVal: 1.165 ± 0.046
0.188HisTrp: 0.188 ± 0.02
0.795HisTyr: 0.795 ± 0.04
0.0HisXaa: 0.0 ± 0.0
Ile
6.603IleAla: 6.603 ± 0.129
0.998IleCys: 0.998 ± 0.047
5.08IleAsp: 5.08 ± 0.119
5.599IleGlu: 5.599 ± 0.117
4.242IlePhe: 4.242 ± 0.114
5.171IleGly: 5.171 ± 0.107
1.484IleHis: 1.484 ± 0.055
8.56IleIle: 8.56 ± 0.199
6.655IleLys: 6.655 ± 0.145
8.564IleLeu: 8.564 ± 0.161
1.728IleMet: 1.728 ± 0.056
5.583IleAsn: 5.583 ± 0.121
2.954IlePro: 2.954 ± 0.075
2.401IleGln: 2.401 ± 0.068
3.072IleArg: 3.072 ± 0.09
6.887IleSer: 6.887 ± 0.146
4.933IleThr: 4.933 ± 0.095
5.287IleVal: 5.287 ± 0.129
0.708IleTrp: 0.708 ± 0.046
2.935IleTyr: 2.935 ± 0.103
0.0IleXaa: 0.0 ± 0.0
Lys
4.378LysAla: 4.378 ± 0.11
0.652LysCys: 0.652 ± 0.037
3.585LysAsp: 3.585 ± 0.102
4.293LysGlu: 4.293 ± 0.102
2.968LysPhe: 2.968 ± 0.085
3.242LysGly: 3.242 ± 0.082
1.433LysHis: 1.433 ± 0.059
7.196LysIle: 7.196 ± 0.153
5.492LysLys: 5.492 ± 0.151
7.007LysLeu: 7.007 ± 0.138
1.737LysMet: 1.737 ± 0.053
4.993LysAsn: 4.993 ± 0.145
2.145LysPro: 2.145 ± 0.071
3.041LysGln: 3.041 ± 0.082
2.792LysArg: 2.792 ± 0.09
4.86LysSer: 4.86 ± 0.115
3.703LysThr: 3.703 ± 0.092
4.033LysVal: 4.033 ± 0.091
0.571LysTrp: 0.571 ± 0.034
2.703LysTyr: 2.703 ± 0.084
0.0LysXaa: 0.0 ± 0.0
Leu
7.961LeuAla: 7.961 ± 0.169
1.17LeuCys: 1.17 ± 0.049
4.705LeuAsp: 4.705 ± 0.1
5.33LeuGlu: 5.33 ± 0.114
5.146LeuPhe: 5.146 ± 0.141
5.943LeuGly: 5.943 ± 0.133
1.965LeuHis: 1.965 ± 0.069
8.344LeuIle: 8.344 ± 0.174
7.018LeuLys: 7.018 ± 0.14
10.851LeuLeu: 10.851 ± 0.209
2.335LeuMet: 2.335 ± 0.078
5.295LeuAsn: 5.295 ± 0.11
4.467LeuPro: 4.467 ± 0.11
3.621LeuGln: 3.621 ± 0.101
4.093LeuArg: 4.093 ± 0.095
8.576LeuSer: 8.576 ± 0.181
5.492LeuThr: 5.492 ± 0.102
6.359LeuVal: 6.359 ± 0.131
0.927LeuTrp: 0.927 ± 0.049
3.186LeuTyr: 3.186 ± 0.087
0.0LeuXaa: 0.0 ± 0.0
Met
1.482MetAla: 1.482 ± 0.057
0.244MetCys: 0.244 ± 0.02
0.913MetAsp: 0.913 ± 0.044
0.95MetGlu: 0.95 ± 0.036
0.975MetPhe: 0.975 ± 0.043
1.172MetGly: 1.172 ± 0.051
0.559MetHis: 0.559 ± 0.031
2.033MetIle: 2.033 ± 0.067
1.565MetLys: 1.565 ± 0.058
2.457MetLeu: 2.457 ± 0.075
0.638MetMet: 0.638 ± 0.034
1.314MetAsn: 1.314 ± 0.051
1.045MetPro: 1.045 ± 0.045
0.994MetGln: 0.994 ± 0.041
0.989MetArg: 0.989 ± 0.045
1.772MetSer: 1.772 ± 0.057
1.25MetThr: 1.25 ± 0.051
1.226MetVal: 1.226 ± 0.047
0.172MetTrp: 0.172 ± 0.019
0.727MetTyr: 0.727 ± 0.038
0.0MetXaa: 0.0 ± 0.0
Asn
2.952AsnAla: 2.952 ± 0.089
0.584AsnCys: 0.584 ± 0.037
2.556AsnAsp: 2.556 ± 0.084
2.612AsnGlu: 2.612 ± 0.078
3.163AsnPhe: 3.163 ± 0.102
2.472AsnGly: 2.472 ± 0.085
1.248AsnHis: 1.248 ± 0.048
6.007AsnIle: 6.007 ± 0.151
4.608AsnLys: 4.608 ± 0.139
6.086AsnLeu: 6.086 ± 0.129
1.244AsnMet: 1.244 ± 0.05
4.384AsnAsn: 4.384 ± 0.132
2.161AsnPro: 2.161 ± 0.059
2.494AsnGln: 2.494 ± 0.091
2.167AsnArg: 2.167 ± 0.065
4.308AsnSer: 4.308 ± 0.091
2.795AsnThr: 2.795 ± 0.092
2.927AsnVal: 2.927 ± 0.085
0.59AsnTrp: 0.59 ± 0.035
2.465AsnTyr: 2.465 ± 0.083
0.0AsnXaa: 0.0 ± 0.0
Pro
2.592ProAla: 2.592 ± 0.096
0.311ProCys: 0.311 ± 0.025
1.751ProAsp: 1.751 ± 0.063
2.033ProGlu: 2.033 ± 0.076
1.702ProPhe: 1.702 ± 0.065
2.085ProGly: 2.085 ± 0.068
0.762ProHis: 0.762 ± 0.042
2.797ProIle: 2.797 ± 0.072
2.329ProLys: 2.329 ± 0.068
3.699ProLeu: 3.699 ± 0.097
0.776ProMet: 0.776 ± 0.039
1.766ProAsn: 1.766 ± 0.057
1.31ProPro: 1.31 ± 0.076
1.451ProGln: 1.451 ± 0.066
1.219ProArg: 1.219 ± 0.054
2.548ProSer: 2.548 ± 0.07
2.074ProThr: 2.074 ± 0.075
2.35ProVal: 2.35 ± 0.08
0.429ProTrp: 0.429 ± 0.033
1.271ProTyr: 1.271 ± 0.049
0.0ProXaa: 0.0 ± 0.0
Gln
2.954GlnAla: 2.954 ± 0.095
0.3GlnCys: 0.3 ± 0.025
1.927GlnAsp: 1.927 ± 0.061
2.401GlnGlu: 2.401 ± 0.078
1.581GlnPhe: 1.581 ± 0.055
2.041GlnGly: 2.041 ± 0.06
0.983GlnHis: 0.983 ± 0.042
3.331GlnIle: 3.331 ± 0.092
2.917GlnLys: 2.917 ± 0.083
4.186GlnLeu: 4.186 ± 0.095
0.799GlnMet: 0.799 ± 0.038
2.41GlnAsn: 2.41 ± 0.09
1.424GlnPro: 1.424 ± 0.083
2.399GlnGln: 2.399 ± 0.095
1.64GlnArg: 1.64 ± 0.067
2.451GlnSer: 2.451 ± 0.073
1.938GlnThr: 1.938 ± 0.062
2.447GlnVal: 2.447 ± 0.084
0.346GlnTrp: 0.346 ± 0.027
1.451GlnTyr: 1.451 ± 0.055
0.0GlnXaa: 0.0 ± 0.0
Arg
2.788ArgAla: 2.788 ± 0.094
0.431ArgCys: 0.431 ± 0.029
1.977ArgAsp: 1.977 ± 0.079
2.461ArgGlu: 2.461 ± 0.082
1.824ArgPhe: 1.824 ± 0.063
2.238ArgGly: 2.238 ± 0.073
0.849ArgHis: 0.849 ± 0.044
3.393ArgIle: 3.393 ± 0.081
2.987ArgLys: 2.987 ± 0.091
3.964ArgLeu: 3.964 ± 0.104
0.925ArgMet: 0.925 ± 0.043
2.006ArgAsn: 2.006 ± 0.065
1.559ArgPro: 1.559 ± 0.073
1.762ArgGln: 1.762 ± 0.075
2.198ArgArg: 2.198 ± 0.103
2.693ArgSer: 2.693 ± 0.077
1.915ArgThr: 1.915 ± 0.066
2.436ArgVal: 2.436 ± 0.08
0.47ArgTrp: 0.47 ± 0.04
1.451ArgTyr: 1.451 ± 0.056
0.0ArgXaa: 0.0 ± 0.0
Ser
4.656SerAla: 4.656 ± 0.108
0.919SerCys: 0.919 ± 0.039
3.109SerAsp: 3.109 ± 0.079
3.327SerGlu: 3.327 ± 0.085
3.782SerPhe: 3.782 ± 0.119
4.328SerGly: 4.328 ± 0.092
1.453SerHis: 1.453 ± 0.054
6.612SerIle: 6.612 ± 0.123
5.303SerLys: 5.303 ± 0.116
7.537SerLeu: 7.537 ± 0.138
1.65SerMet: 1.65 ± 0.053
4.36SerAsn: 4.36 ± 0.12
2.451SerPro: 2.451 ± 0.081
2.646SerGln: 2.646 ± 0.085
2.842SerArg: 2.842 ± 0.072
6.241SerSer: 6.241 ± 0.14
3.908SerThr: 3.908 ± 0.108
4.227SerVal: 4.227 ± 0.105
0.791SerTrp: 0.791 ± 0.037
2.724SerTyr: 2.724 ± 0.079
0.0SerXaa: 0.0 ± 0.0
Thr
3.823ThrAla: 3.823 ± 0.097
0.59ThrCys: 0.59 ± 0.032
2.561ThrAsp: 2.561 ± 0.077
2.761ThrGlu: 2.761 ± 0.076
2.26ThrPhe: 2.26 ± 0.079
3.395ThrGly: 3.395 ± 0.085
0.992ThrHis: 0.992 ± 0.041
4.79ThrIle: 4.79 ± 0.092
3.701ThrLys: 3.701 ± 0.088
5.041ThrLeu: 5.041 ± 0.12
1.052ThrMet: 1.052 ± 0.044
3.088ThrAsn: 3.088 ± 0.113
2.277ThrPro: 2.277 ± 0.071
1.964ThrGln: 1.964 ± 0.076
1.952ThrArg: 1.952 ± 0.061
3.906ThrSer: 3.906 ± 0.104
3.256ThrThr: 3.256 ± 0.08
3.074ThrVal: 3.074 ± 0.084
0.433ThrTrp: 0.433 ± 0.029
1.615ThrTyr: 1.615 ± 0.056
0.0ThrXaa: 0.0 ± 0.0
Val
4.527ValAla: 4.527 ± 0.125
0.708ValCys: 0.708 ± 0.04
3.103ValAsp: 3.103 ± 0.091
3.378ValGlu: 3.378 ± 0.087
2.801ValPhe: 2.801 ± 0.075
3.865ValGly: 3.865 ± 0.105
1.074ValHis: 1.074 ± 0.043
5.409ValIle: 5.409 ± 0.129
3.939ValLys: 3.939 ± 0.087
6.088ValLeu: 6.088 ± 0.124
1.414ValMet: 1.414 ± 0.057
3.084ValAsn: 3.084 ± 0.095
2.203ValPro: 2.203 ± 0.063
1.89ValGln: 1.89 ± 0.069
2.273ValArg: 2.273 ± 0.075
4.196ValSer: 4.196 ± 0.092
3.37ValThr: 3.37 ± 0.084
4.144ValVal: 4.144 ± 0.11
0.6ValTrp: 0.6 ± 0.038
1.875ValTyr: 1.875 ± 0.06
0.0ValXaa: 0.0 ± 0.0
Trp
0.592TrpAla: 0.592 ± 0.034
0.128TrpCys: 0.128 ± 0.014
0.389TrpAsp: 0.389 ± 0.03
0.406TrpGlu: 0.406 ± 0.027
0.52TrpPhe: 0.52 ± 0.032
0.549TrpGly: 0.549 ± 0.04
0.281TrpHis: 0.281 ± 0.022
0.665TrpIle: 0.665 ± 0.039
0.522TrpLys: 0.522 ± 0.033
1.306TrpLeu: 1.306 ± 0.06
0.221TrpMet: 0.221 ± 0.021
0.458TrpAsn: 0.458 ± 0.026
0.354TrpPro: 0.354 ± 0.027
0.656TrpGln: 0.656 ± 0.046
0.499TrpArg: 0.499 ± 0.034
0.636TrpSer: 0.636 ± 0.038
0.466TrpThr: 0.466 ± 0.032
0.515TrpVal: 0.515 ± 0.031
0.174TrpTrp: 0.174 ± 0.018
0.393TrpTyr: 0.393 ± 0.03
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.056TyrAla: 2.056 ± 0.061
0.484TyrCys: 0.484 ± 0.03
1.9TyrAsp: 1.9 ± 0.071
1.598TyrGlu: 1.598 ± 0.053
1.888TyrPhe: 1.888 ± 0.076
2.12TyrGly: 2.12 ± 0.071
0.803TyrHis: 0.803 ± 0.036
2.836TyrIle: 2.836 ± 0.093
2.261TyrLys: 2.261 ± 0.077
4.19TyrLeu: 4.19 ± 0.118
0.799TyrMet: 0.799 ± 0.038
2.26TyrAsn: 2.26 ± 0.078
1.143TyrPro: 1.143 ± 0.049
1.519TyrGln: 1.519 ± 0.063
1.484TyrArg: 1.484 ± 0.054
2.788TyrSer: 2.788 ± 0.083
1.671TyrThr: 1.671 ± 0.061
1.884TyrVal: 1.884 ± 0.058
0.462TyrTrp: 0.462 ± 0.033
1.474TyrTyr: 1.474 ± 0.056
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 1803 proteins (516923 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