Amino acid dipepetide frequency for Pilibacter termitis

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
3.924AlaAla: 3.924 ± 0.088
0.474AlaCys: 0.474 ± 0.024
3.106AlaAsp: 3.106 ± 0.058
5.097AlaGlu: 5.097 ± 0.089
3.066AlaPhe: 3.066 ± 0.067
4.722AlaGly: 4.722 ± 0.097
1.078AlaHis: 1.078 ± 0.038
5.642AlaIle: 5.642 ± 0.108
5.644AlaLys: 5.644 ± 0.093
6.675AlaLeu: 6.675 ± 0.099
1.983AlaMet: 1.983 ± 0.058
3.332AlaAsn: 3.332 ± 0.081
1.899AlaPro: 1.899 ± 0.053
2.497AlaGln: 2.497 ± 0.074
2.888AlaArg: 2.888 ± 0.064
3.89AlaSer: 3.89 ± 0.074
4.548AlaThr: 4.548 ± 0.09
4.493AlaVal: 4.493 ± 0.083
0.573AlaTrp: 0.573 ± 0.031
2.219AlaTyr: 2.219 ± 0.055
0.0AlaXaa: 0.0 ± 0.0
Cys
0.391CysAla: 0.391 ± 0.022
0.056CysCys: 0.056 ± 0.011
0.334CysAsp: 0.334 ± 0.022
0.488CysGlu: 0.488 ± 0.028
0.387CysPhe: 0.387 ± 0.022
0.643CysGly: 0.643 ± 0.032
0.152CysHis: 0.152 ± 0.014
0.397CysIle: 0.397 ± 0.023
0.307CysLys: 0.307 ± 0.022
0.713CysLeu: 0.713 ± 0.039
0.153CysMet: 0.153 ± 0.015
0.199CysAsn: 0.199 ± 0.017
0.24CysPro: 0.24 ± 0.017
0.19CysGln: 0.19 ± 0.016
0.192CysArg: 0.192 ± 0.016
0.414CysSer: 0.414 ± 0.028
0.287CysThr: 0.287 ± 0.021
0.458CysVal: 0.458 ± 0.024
0.059CysTrp: 0.059 ± 0.008
0.285CysTyr: 0.285 ± 0.021
0.0CysXaa: 0.0 ± 0.0
Asp
2.801AspAla: 2.801 ± 0.076
0.343AspCys: 0.343 ± 0.021
2.386AspAsp: 2.386 ± 0.072
4.799AspGlu: 4.799 ± 0.085
3.066AspPhe: 3.066 ± 0.067
3.28AspGly: 3.28 ± 0.072
0.629AspHis: 0.629 ± 0.025
3.598AspIle: 3.598 ± 0.069
3.657AspLys: 3.657 ± 0.07
4.598AspLeu: 4.598 ± 0.081
1.204AspMet: 1.204 ± 0.037
2.104AspAsn: 2.104 ± 0.062
1.292AspPro: 1.292 ± 0.046
0.903AspGln: 0.903 ± 0.036
1.556AspArg: 1.556 ± 0.056
2.371AspSer: 2.371 ± 0.068
2.735AspThr: 2.735 ± 0.074
3.796AspVal: 3.796 ± 0.08
0.644AspTrp: 0.644 ± 0.034
2.316AspTyr: 2.316 ± 0.057
0.0AspXaa: 0.0 ± 0.0
Glu
4.268GluAla: 4.268 ± 0.081
0.401GluCys: 0.401 ± 0.025
3.357GluAsp: 3.357 ± 0.066
8.358GluGlu: 8.358 ± 0.153
3.291GluPhe: 3.291 ± 0.069
3.713GluGly: 3.713 ± 0.075
1.265GluHis: 1.265 ± 0.035
7.189GluIle: 7.189 ± 0.107
9.274GluLys: 9.274 ± 0.134
7.738GluLeu: 7.738 ± 0.099
2.67GluMet: 2.67 ± 0.059
5.632GluAsn: 5.632 ± 0.091
1.475GluPro: 1.475 ± 0.043
3.343GluGln: 3.343 ± 0.075
3.594GluArg: 3.594 ± 0.081
3.507GluSer: 3.507 ± 0.064
4.109GluThr: 4.109 ± 0.07
6.153GluVal: 6.153 ± 0.102
0.739GluTrp: 0.739 ± 0.03
2.701GluTyr: 2.701 ± 0.057
0.0GluXaa: 0.0 ± 0.0
Phe
3.434PheAla: 3.434 ± 0.071
0.439PheCys: 0.439 ± 0.027
2.877PheAsp: 2.877 ± 0.067
3.431PheGlu: 3.431 ± 0.064
2.774PhePhe: 2.774 ± 0.083
3.321PheGly: 3.321 ± 0.071
1.088PheHis: 1.088 ± 0.04
3.355PheIle: 3.355 ± 0.084
2.39PheLys: 2.39 ± 0.058
5.418PheLeu: 5.418 ± 0.122
1.089PheMet: 1.089 ± 0.041
1.709PheAsn: 1.709 ± 0.044
1.761PhePro: 1.761 ± 0.046
1.918PheGln: 1.918 ± 0.054
1.644PheArg: 1.644 ± 0.048
3.854PheSer: 3.854 ± 0.071
2.802PheThr: 2.802 ± 0.064
3.517PheVal: 3.517 ± 0.081
0.453PheTrp: 0.453 ± 0.029
1.843PheTyr: 1.843 ± 0.054
0.0PheXaa: 0.0 ± 0.0
Gly
4.474GlyAla: 4.474 ± 0.099
0.482GlyCys: 0.482 ± 0.027
2.896GlyAsp: 2.896 ± 0.081
5.085GlyGlu: 5.085 ± 0.082
3.217GlyPhe: 3.217 ± 0.071
4.311GlyGly: 4.311 ± 0.103
0.974GlyHis: 0.974 ± 0.037
5.3GlyIle: 5.3 ± 0.102
5.575GlyLys: 5.575 ± 0.091
5.581GlyLeu: 5.581 ± 0.089
1.956GlyMet: 1.956 ± 0.058
3.088GlyAsn: 3.088 ± 0.092
0.973GlyPro: 0.973 ± 0.035
1.971GlyGln: 1.971 ± 0.056
2.333GlyArg: 2.333 ± 0.062
3.529GlySer: 3.529 ± 0.077
3.689GlyThr: 3.689 ± 0.093
5.524GlyVal: 5.524 ± 0.085
0.663GlyTrp: 0.663 ± 0.033
2.464GlyTyr: 2.464 ± 0.064
0.0GlyXaa: 0.0 ± 0.0
His
1.13HisAla: 1.13 ± 0.041
0.148HisCys: 0.148 ± 0.013
0.868HisAsp: 0.868 ± 0.033
1.361HisGlu: 1.361 ± 0.04
1.112HisPhe: 1.112 ± 0.038
1.208HisGly: 1.208 ± 0.042
0.46HisHis: 0.46 ± 0.027
1.168HisIle: 1.168 ± 0.038
0.973HisLys: 0.973 ± 0.036
1.965HisLeu: 1.965 ± 0.054
0.32HisMet: 0.32 ± 0.021
0.693HisAsn: 0.693 ± 0.03
0.745HisPro: 0.745 ± 0.032
0.727HisGln: 0.727 ± 0.033
0.674HisArg: 0.674 ± 0.033
1.102HisSer: 1.102 ± 0.034
0.93HisThr: 0.93 ± 0.035
1.008HisVal: 1.008 ± 0.041
0.199HisTrp: 0.199 ± 0.015
0.799HisTyr: 0.799 ± 0.03
0.0HisXaa: 0.0 ± 0.0
Ile
5.983IleAla: 5.983 ± 0.095
0.578IleCys: 0.578 ± 0.031
3.908IleAsp: 3.908 ± 0.074
5.682IleGlu: 5.682 ± 0.078
3.704IlePhe: 3.704 ± 0.085
5.107IleGly: 5.107 ± 0.109
1.44IleHis: 1.44 ± 0.047
4.463IleIle: 4.463 ± 0.089
4.082IleLys: 4.082 ± 0.078
7.495IleLeu: 7.495 ± 0.137
1.483IleMet: 1.483 ± 0.046
2.783IleAsn: 2.783 ± 0.062
2.973IlePro: 2.973 ± 0.065
3.044IleGln: 3.044 ± 0.061
2.84IleArg: 2.84 ± 0.06
5.062IleSer: 5.062 ± 0.097
4.379IleThr: 4.379 ± 0.08
5.267IleVal: 5.267 ± 0.099
0.571IleTrp: 0.571 ± 0.03
2.472IleTyr: 2.472 ± 0.053
0.0IleXaa: 0.0 ± 0.0
Lys
4.855LysAla: 4.855 ± 0.1
0.347LysCys: 0.347 ± 0.02
3.515LysAsp: 3.515 ± 0.068
8.229LysGlu: 8.229 ± 0.111
2.61LysPhe: 2.61 ± 0.059
4.412LysGly: 4.412 ± 0.079
1.238LysHis: 1.238 ± 0.037
6.187LysIle: 6.187 ± 0.086
7.443LysLys: 7.443 ± 0.132
6.253LysLeu: 6.253 ± 0.091
2.543LysMet: 2.543 ± 0.06
4.732LysAsn: 4.732 ± 0.08
1.772LysPro: 1.772 ± 0.06
2.959LysGln: 2.959 ± 0.067
3.617LysArg: 3.617 ± 0.072
4.002LysSer: 4.002 ± 0.072
4.402LysThr: 4.402 ± 0.095
4.883LysVal: 4.883 ± 0.078
0.686LysTrp: 0.686 ± 0.027
2.441LysTyr: 2.441 ± 0.054
0.0LysXaa: 0.0 ± 0.0
Leu
7.608LeuAla: 7.608 ± 0.122
0.641LeuCys: 0.641 ± 0.031
4.836LeuAsp: 4.836 ± 0.089
7.281LeuGlu: 7.281 ± 0.131
5.181LeuPhe: 5.181 ± 0.118
6.153LeuGly: 6.153 ± 0.101
1.738LeuHis: 1.738 ± 0.045
6.183LeuIle: 6.183 ± 0.114
6.649LeuLys: 6.649 ± 0.096
10.153LeuLeu: 10.153 ± 0.159
2.283LeuMet: 2.283 ± 0.059
4.41LeuAsn: 4.41 ± 0.083
4.045LeuPro: 4.045 ± 0.072
3.367LeuGln: 3.367 ± 0.075
3.733LeuArg: 3.733 ± 0.079
7.8LeuSer: 7.8 ± 0.103
5.644LeuThr: 5.644 ± 0.09
6.181LeuVal: 6.181 ± 0.096
0.719LeuTrp: 0.719 ± 0.036
2.925LeuTyr: 2.925 ± 0.065
0.0LeuXaa: 0.0 ± 0.0
Met
1.593MetAla: 1.593 ± 0.052
0.151MetCys: 0.151 ± 0.014
1.247MetAsp: 1.247 ± 0.04
1.98MetGlu: 1.98 ± 0.056
0.95MetPhe: 0.95 ± 0.036
1.361MetGly: 1.361 ± 0.054
0.301MetHis: 0.301 ± 0.019
2.119MetIle: 2.119 ± 0.056
2.732MetLys: 2.732 ± 0.063
2.384MetLeu: 2.384 ± 0.059
0.788MetMet: 0.788 ± 0.032
1.743MetAsn: 1.743 ± 0.048
0.87MetPro: 0.87 ± 0.032
0.932MetGln: 0.932 ± 0.038
1.117MetArg: 1.117 ± 0.04
1.835MetSer: 1.835 ± 0.057
1.584MetThr: 1.584 ± 0.045
1.569MetVal: 1.569 ± 0.043
0.171MetTrp: 0.171 ± 0.015
0.722MetTyr: 0.722 ± 0.03
0.0MetXaa: 0.0 ± 0.0
Asn
3.606AsnAla: 3.606 ± 0.073
0.302AsnCys: 0.302 ± 0.025
2.352AsnAsp: 2.352 ± 0.062
3.891AsnGlu: 3.891 ± 0.085
2.39AsnPhe: 2.39 ± 0.055
4.087AsnGly: 4.087 ± 0.123
0.951AsnHis: 0.951 ± 0.036
3.457AsnIle: 3.457 ± 0.066
3.147AsnLys: 3.147 ± 0.069
4.491AsnLeu: 4.491 ± 0.078
1.055AsnMet: 1.055 ± 0.032
2.323AsnAsn: 2.323 ± 0.078
2.068AsnPro: 2.068 ± 0.059
1.916AsnGln: 1.916 ± 0.057
1.99AsnArg: 1.99 ± 0.051
2.555AsnSer: 2.555 ± 0.066
2.603AsnThr: 2.603 ± 0.074
3.539AsnVal: 3.539 ± 0.082
0.546AsnTrp: 0.546 ± 0.028
1.98AsnTyr: 1.98 ± 0.053
0.0AsnXaa: 0.0 ± 0.0
Pro
1.967ProAla: 1.967 ± 0.054
0.163ProCys: 0.163 ± 0.015
1.505ProAsp: 1.505 ± 0.048
2.758ProGlu: 2.758 ± 0.068
1.76ProPhe: 1.76 ± 0.056
1.133ProGly: 1.133 ± 0.04
0.624ProHis: 0.624 ± 0.027
2.429ProIle: 2.429 ± 0.057
2.397ProLys: 2.397 ± 0.064
2.894ProLeu: 2.894 ± 0.061
0.803ProMet: 0.803 ± 0.032
1.86ProAsn: 1.86 ± 0.055
0.712ProPro: 0.712 ± 0.036
1.126ProGln: 1.126 ± 0.042
1.032ProArg: 1.032 ± 0.042
1.981ProSer: 1.981 ± 0.065
2.224ProThr: 2.224 ± 0.056
2.319ProVal: 2.319 ± 0.065
0.243ProTrp: 0.243 ± 0.018
1.223ProTyr: 1.223 ± 0.041
0.0ProXaa: 0.0 ± 0.0
Gln
2.95GlnAla: 2.95 ± 0.064
0.134GlnCys: 0.134 ± 0.012
1.456GlnAsp: 1.456 ± 0.041
3.375GlnGlu: 3.375 ± 0.08
1.68GlnPhe: 1.68 ± 0.042
2.101GlnGly: 2.101 ± 0.057
0.64GlnHis: 0.64 ± 0.029
2.373GlnIle: 2.373 ± 0.059
3.103GlnLys: 3.103 ± 0.066
3.586GlnLeu: 3.586 ± 0.074
1.122GlnMet: 1.122 ± 0.041
1.866GlnAsn: 1.866 ± 0.053
0.983GlnPro: 0.983 ± 0.037
1.514GlnGln: 1.514 ± 0.051
1.447GlnArg: 1.447 ± 0.052
1.99GlnSer: 1.99 ± 0.054
2.377GlnThr: 2.377 ± 0.072
2.464GlnVal: 2.464 ± 0.053
0.266GlnTrp: 0.266 ± 0.021
1.246GlnTyr: 1.246 ± 0.042
0.0GlnXaa: 0.0 ± 0.0
Arg
2.415ArgAla: 2.415 ± 0.058
0.202ArgCys: 0.202 ± 0.019
1.744ArgAsp: 1.744 ± 0.051
3.705ArgGlu: 3.705 ± 0.079
1.952ArgPhe: 1.952 ± 0.054
2.247ArgGly: 2.247 ± 0.058
0.665ArgHis: 0.665 ± 0.029
2.813ArgIle: 2.813 ± 0.068
3.534ArgLys: 3.534 ± 0.075
3.829ArgLeu: 3.829 ± 0.075
1.241ArgMet: 1.241 ± 0.039
1.901ArgAsn: 1.901 ± 0.05
0.989ArgPro: 0.989 ± 0.039
1.513ArgGln: 1.513 ± 0.052
1.756ArgArg: 1.756 ± 0.055
1.913ArgSer: 1.913 ± 0.046
1.972ArgThr: 1.972 ± 0.05
2.913ArgVal: 2.913 ± 0.07
0.305ArgTrp: 0.305 ± 0.019
1.532ArgTyr: 1.532 ± 0.048
0.0ArgXaa: 0.0 ± 0.0
Ser
3.867SerAla: 3.867 ± 0.074
0.4SerCys: 0.4 ± 0.024
2.904SerAsp: 2.904 ± 0.058
4.803SerGlu: 4.803 ± 0.084
3.446SerPhe: 3.446 ± 0.065
4.556SerGly: 4.556 ± 0.091
1.044SerHis: 1.044 ± 0.037
4.521SerIle: 4.521 ± 0.086
4.226SerLys: 4.226 ± 0.083
5.967SerLeu: 5.967 ± 0.095
1.502SerMet: 1.502 ± 0.043
2.753SerAsn: 2.753 ± 0.059
1.847SerPro: 1.847 ± 0.048
2.106SerGln: 2.106 ± 0.057
2.2SerArg: 2.2 ± 0.052
4.09SerSer: 4.09 ± 0.15
3.622SerThr: 3.622 ± 0.126
4.21SerVal: 4.21 ± 0.071
0.614SerTrp: 0.614 ± 0.029
2.228SerTyr: 2.228 ± 0.057
0.0SerXaa: 0.0 ± 0.0
Thr
3.819ThrAla: 3.819 ± 0.081
0.281ThrCys: 0.281 ± 0.019
2.703ThrAsp: 2.703 ± 0.079
3.643ThrGlu: 3.643 ± 0.077
2.789ThrPhe: 2.789 ± 0.06
4.31ThrGly: 4.31 ± 0.105
1.25ThrHis: 1.25 ± 0.042
4.573ThrIle: 4.573 ± 0.075
3.992ThrLys: 3.992 ± 0.083
6.095ThrLeu: 6.095 ± 0.1
1.257ThrMet: 1.257 ± 0.04
2.785ThrAsn: 2.785 ± 0.076
2.606ThrPro: 2.606 ± 0.066
2.082ThrGln: 2.082 ± 0.062
2.016ThrArg: 2.016 ± 0.051
4.035ThrSer: 4.035 ± 0.106
3.871ThrThr: 3.871 ± 0.157
3.894ThrVal: 3.894 ± 0.096
0.525ThrTrp: 0.525 ± 0.027
1.854ThrTyr: 1.854 ± 0.073
0.0ThrXaa: 0.0 ± 0.0
Val
5.732ValAla: 5.732 ± 0.094
0.477ValCys: 0.477 ± 0.028
3.636ValAsp: 3.636 ± 0.079
5.613ValGlu: 5.613 ± 0.088
3.237ValPhe: 3.237 ± 0.071
4.516ValGly: 4.516 ± 0.095
1.161ValHis: 1.161 ± 0.04
4.887ValIle: 4.887 ± 0.087
5.113ValLys: 5.113 ± 0.087
6.976ValLeu: 6.976 ± 0.103
1.734ValMet: 1.734 ± 0.056
3.174ValAsn: 3.174 ± 0.057
2.431ValPro: 2.431 ± 0.059
2.309ValGln: 2.309 ± 0.06
2.6ValArg: 2.6 ± 0.065
4.263ValSer: 4.263 ± 0.074
4.058ValThr: 4.058 ± 0.094
5.414ValVal: 5.414 ± 0.096
0.545ValTrp: 0.545 ± 0.026
2.367ValTyr: 2.367 ± 0.063
0.0ValXaa: 0.0 ± 0.0
Trp
0.525TrpAla: 0.525 ± 0.028
0.08TrpCys: 0.08 ± 0.01
0.445TrpAsp: 0.445 ± 0.025
0.673TrpGlu: 0.673 ± 0.031
0.445TrpPhe: 0.445 ± 0.022
0.582TrpGly: 0.582 ± 0.03
0.176TrpHis: 0.176 ± 0.017
0.569TrpIle: 0.569 ± 0.027
0.703TrpLys: 0.703 ± 0.028
0.956TrpLeu: 0.956 ± 0.037
0.204TrpMet: 0.204 ± 0.019
0.525TrpAsn: 0.525 ± 0.031
0.121TrpPro: 0.121 ± 0.013
0.536TrpGln: 0.536 ± 0.032
0.406TrpArg: 0.406 ± 0.025
0.605TrpSer: 0.605 ± 0.03
0.488TrpThr: 0.488 ± 0.026
0.517TrpVal: 0.517 ± 0.03
0.123TrpTrp: 0.123 ± 0.012
0.304TrpTyr: 0.304 ± 0.021
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.409TyrAla: 2.409 ± 0.047
0.247TyrCys: 0.247 ± 0.017
2.002TyrAsp: 2.002 ± 0.077
2.524TyrGlu: 2.524 ± 0.06
2.058TyrPhe: 2.058 ± 0.06
2.321TyrGly: 2.321 ± 0.066
0.716TyrHis: 0.716 ± 0.031
2.092TyrIle: 2.092 ± 0.056
2.183TyrLys: 2.183 ± 0.055
3.763TyrLeu: 3.763 ± 0.074
0.758TyrMet: 0.758 ± 0.028
1.641TyrAsn: 1.641 ± 0.05
1.35TyrPro: 1.35 ± 0.044
1.719TyrGln: 1.719 ± 0.053
1.508TyrArg: 1.508 ± 0.046
2.106TyrSer: 2.106 ± 0.047
2.058TyrThr: 2.058 ± 0.079
2.123TyrVal: 2.123 ± 0.041
0.343TyrTrp: 0.343 ± 0.027
1.49TyrTyr: 1.49 ± 0.053
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 2569 proteins (790524 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