Amino acid dipepetide frequency for Alteromonas sp. KUL49

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
7.041AlaAla: 7.041 ± 0.098
0.884AlaCys: 0.884 ± 0.027
4.565AlaAsp: 4.565 ± 0.061
5.165AlaGlu: 5.165 ± 0.077
3.698AlaPhe: 3.698 ± 0.057
5.715AlaGly: 5.715 ± 0.079
1.698AlaHis: 1.698 ± 0.04
5.71AlaIle: 5.71 ± 0.072
4.358AlaLys: 4.358 ± 0.074
10.141AlaLeu: 10.141 ± 0.107
2.549AlaMet: 2.549 ± 0.047
3.815AlaAsn: 3.815 ± 0.054
3.085AlaPro: 3.085 ± 0.057
3.891AlaGln: 3.891 ± 0.065
3.621AlaArg: 3.621 ± 0.057
6.085AlaSer: 6.085 ± 0.075
4.798AlaThr: 4.798 ± 0.069
5.951AlaVal: 5.951 ± 0.082
0.943AlaTrp: 0.943 ± 0.03
2.627AlaTyr: 2.627 ± 0.051
0.0AlaXaa: 0.0 ± 0.0
Cys
0.8CysAla: 0.8 ± 0.024
0.147CysCys: 0.147 ± 0.011
0.581CysAsp: 0.581 ± 0.022
0.621CysGlu: 0.621 ± 0.026
0.474CysPhe: 0.474 ± 0.018
0.746CysGly: 0.746 ± 0.029
0.266CysHis: 0.266 ± 0.016
0.591CysIle: 0.591 ± 0.025
0.368CysLys: 0.368 ± 0.018
0.844CysLeu: 0.844 ± 0.026
0.2CysMet: 0.2 ± 0.013
0.393CysAsn: 0.393 ± 0.017
0.367CysPro: 0.367 ± 0.019
0.323CysGln: 0.323 ± 0.016
0.377CysArg: 0.377 ± 0.021
0.716CysSer: 0.716 ± 0.027
0.47CysThr: 0.47 ± 0.022
0.636CysVal: 0.636 ± 0.021
0.116CysTrp: 0.116 ± 0.009
0.319CysTyr: 0.319 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
5.2AspAla: 5.2 ± 0.069
0.47AspCys: 0.47 ± 0.02
3.75AspAsp: 3.75 ± 0.064
4.033AspGlu: 4.033 ± 0.064
2.669AspPhe: 2.669 ± 0.048
4.249AspGly: 4.249 ± 0.073
1.058AspHis: 1.058 ± 0.029
4.483AspIle: 4.483 ± 0.06
2.97AspLys: 2.97 ± 0.054
4.925AspLeu: 4.925 ± 0.068
1.509AspMet: 1.509 ± 0.036
2.953AspAsn: 2.953 ± 0.053
2.077AspPro: 2.077 ± 0.039
1.697AspGln: 1.697 ± 0.04
2.246AspArg: 2.246 ± 0.038
3.628AspSer: 3.628 ± 0.056
3.53AspThr: 3.53 ± 0.063
4.541AspVal: 4.541 ± 0.063
0.911AspTrp: 0.911 ± 0.027
2.293AspTyr: 2.293 ± 0.043
0.0AspXaa: 0.0 ± 0.0
Glu
5.474GluAla: 5.474 ± 0.078
0.456GluCys: 0.456 ± 0.019
3.305GluAsp: 3.305 ± 0.06
3.794GluGlu: 3.794 ± 0.067
2.564GluPhe: 2.564 ± 0.047
3.926GluGly: 3.926 ± 0.052
1.619GluHis: 1.619 ± 0.04
3.573GluIle: 3.573 ± 0.058
3.31GluLys: 3.31 ± 0.055
6.274GluLeu: 6.274 ± 0.083
1.53GluMet: 1.53 ± 0.038
3.028GluAsn: 3.028 ± 0.046
1.977GluPro: 1.977 ± 0.047
3.613GluGln: 3.613 ± 0.065
3.271GluArg: 3.271 ± 0.056
4.171GluSer: 4.171 ± 0.053
3.278GluThr: 3.278 ± 0.052
4.346GluVal: 4.346 ± 0.061
0.79GluTrp: 0.79 ± 0.025
1.862GluTyr: 1.862 ± 0.043
0.0GluXaa: 0.0 ± 0.0
Phe
3.712PheAla: 3.712 ± 0.058
0.489PheCys: 0.489 ± 0.021
3.183PheAsp: 3.183 ± 0.059
2.769PheGlu: 2.769 ± 0.053
1.909PhePhe: 1.909 ± 0.043
3.258PheGly: 3.258 ± 0.058
0.834PheHis: 0.834 ± 0.03
2.722PheIle: 2.722 ± 0.054
1.779PheLys: 1.779 ± 0.036
3.361PheLeu: 3.361 ± 0.057
1.016PheMet: 1.016 ± 0.029
2.229PheAsn: 2.229 ± 0.041
1.535PhePro: 1.535 ± 0.033
1.193PheGln: 1.193 ± 0.033
1.584PheArg: 1.584 ± 0.036
3.763PheSer: 3.763 ± 0.063
2.669PheThr: 2.669 ± 0.045
3.228PheVal: 3.228 ± 0.052
0.552PheTrp: 0.552 ± 0.021
1.502PheTyr: 1.502 ± 0.041
0.0PheXaa: 0.0 ± 0.0
Gly
5.381GlyAla: 5.381 ± 0.076
0.781GlyCys: 0.781 ± 0.024
4.049GlyAsp: 4.049 ± 0.069
4.58GlyGlu: 4.58 ± 0.062
3.488GlyPhe: 3.488 ± 0.066
4.728GlyGly: 4.728 ± 0.085
1.456GlyHis: 1.456 ± 0.038
4.651GlyIle: 4.651 ± 0.06
3.649GlyLys: 3.649 ± 0.06
6.68GlyLeu: 6.68 ± 0.081
1.989GlyMet: 1.989 ± 0.043
2.953GlyAsn: 2.953 ± 0.056
1.693GlyPro: 1.693 ± 0.036
2.626GlyGln: 2.626 ± 0.042
2.884GlyArg: 2.884 ± 0.056
4.065GlySer: 4.065 ± 0.063
3.649GlyThr: 3.649 ± 0.057
5.353GlyVal: 5.353 ± 0.076
0.998GlyTrp: 0.998 ± 0.029
2.556GlyTyr: 2.556 ± 0.045
0.0GlyXaa: 0.0 ± 0.0
His
1.592HisAla: 1.592 ± 0.041
0.27HisCys: 0.27 ± 0.015
1.181HisAsp: 1.181 ± 0.032
1.19HisGlu: 1.19 ± 0.033
1.08HisPhe: 1.08 ± 0.031
1.556HisGly: 1.556 ± 0.043
0.667HisHis: 0.667 ± 0.026
1.467HisIle: 1.467 ± 0.035
1.01HisLys: 1.01 ± 0.027
2.082HisLeu: 2.082 ± 0.041
0.537HisMet: 0.537 ± 0.022
0.925HisAsn: 0.925 ± 0.025
1.099HisPro: 1.099 ± 0.03
1.004HisGln: 1.004 ± 0.029
1.028HisArg: 1.028 ± 0.032
1.473HisSer: 1.473 ± 0.039
1.201HisThr: 1.201 ± 0.033
1.433HisVal: 1.433 ± 0.035
0.399HisTrp: 0.399 ± 0.019
0.942HisTyr: 0.942 ± 0.025
0.0HisXaa: 0.0 ± 0.0
Ile
6.132IleAla: 6.132 ± 0.072
0.617IleCys: 0.617 ± 0.023
4.422IleAsp: 4.422 ± 0.063
4.384IleGlu: 4.384 ± 0.061
2.1IlePhe: 2.1 ± 0.042
4.486IleGly: 4.486 ± 0.071
1.244IleHis: 1.244 ± 0.032
3.195IleIle: 3.195 ± 0.052
2.873IleLys: 2.873 ± 0.051
4.826IleLeu: 4.826 ± 0.079
1.174IleMet: 1.174 ± 0.03
3.146IleAsn: 3.146 ± 0.059
2.525IlePro: 2.525 ± 0.043
2.236IleGln: 2.236 ± 0.046
2.648IleArg: 2.648 ± 0.042
4.519IleSer: 4.519 ± 0.066
3.722IleThr: 3.722 ± 0.054
4.386IleVal: 4.386 ± 0.07
0.57IleTrp: 0.57 ± 0.021
1.658IleTyr: 1.658 ± 0.036
0.0IleXaa: 0.0 ± 0.0
Lys
4.472LysAla: 4.472 ± 0.081
0.289LysCys: 0.289 ± 0.018
2.528LysAsp: 2.528 ± 0.05
2.615LysGlu: 2.615 ± 0.052
1.489LysPhe: 1.489 ± 0.038
3.059LysGly: 3.059 ± 0.056
1.252LysHis: 1.252 ± 0.035
2.413LysIle: 2.413 ± 0.043
2.339LysLys: 2.339 ± 0.052
4.705LysLeu: 4.705 ± 0.072
1.123LysMet: 1.123 ± 0.031
1.918LysAsn: 1.918 ± 0.037
2.122LysPro: 2.122 ± 0.037
2.523LysGln: 2.523 ± 0.046
2.639LysArg: 2.639 ± 0.045
3.145LysSer: 3.145 ± 0.053
2.668LysThr: 2.668 ± 0.048
3.431LysVal: 3.431 ± 0.063
0.542LysTrp: 0.542 ± 0.022
1.348LysTyr: 1.348 ± 0.029
0.0LysXaa: 0.0 ± 0.0
Leu
9.254LeuAla: 9.254 ± 0.103
1.075LeuCys: 1.075 ± 0.03
5.824LeuAsp: 5.824 ± 0.073
5.691LeuGlu: 5.691 ± 0.076
4.286LeuPhe: 4.286 ± 0.066
6.498LeuGly: 6.498 ± 0.08
2.095LeuHis: 2.095 ± 0.046
5.592LeuIle: 5.592 ± 0.077
4.546LeuLys: 4.546 ± 0.065
9.879LeuLeu: 9.879 ± 0.118
2.289LeuMet: 2.289 ± 0.046
4.601LeuAsn: 4.601 ± 0.056
4.676LeuPro: 4.676 ± 0.063
3.417LeuGln: 3.417 ± 0.056
4.271LeuArg: 4.271 ± 0.065
8.475LeuSer: 8.475 ± 0.098
6.052LeuThr: 6.052 ± 0.074
7.211LeuVal: 7.211 ± 0.093
1.023LeuTrp: 1.023 ± 0.029
2.698LeuTyr: 2.698 ± 0.049
0.0LeuXaa: 0.0 ± 0.0
Met
2.304MetAla: 2.304 ± 0.043
0.187MetCys: 0.187 ± 0.014
1.201MetAsp: 1.201 ± 0.031
1.262MetGlu: 1.262 ± 0.031
0.973MetPhe: 0.973 ± 0.027
1.685MetGly: 1.685 ± 0.04
0.508MetHis: 0.508 ± 0.022
1.234MetIle: 1.234 ± 0.034
1.326MetLys: 1.326 ± 0.033
2.579MetLeu: 2.579 ± 0.047
0.671MetMet: 0.671 ± 0.027
1.029MetAsn: 1.029 ± 0.029
1.143MetPro: 1.143 ± 0.031
1.064MetGln: 1.064 ± 0.027
1.211MetArg: 1.211 ± 0.032
1.902MetSer: 1.902 ± 0.037
1.549MetThr: 1.549 ± 0.039
1.66MetVal: 1.66 ± 0.035
0.254MetTrp: 0.254 ± 0.013
0.599MetTyr: 0.599 ± 0.022
0.0MetXaa: 0.0 ± 0.0
Asn
4.181AsnAla: 4.181 ± 0.062
0.387AsnCys: 0.387 ± 0.019
2.721AsnAsp: 2.721 ± 0.052
2.646AsnGlu: 2.646 ± 0.046
1.663AsnPhe: 1.663 ± 0.041
3.378AsnGly: 3.378 ± 0.062
0.994AsnHis: 0.994 ± 0.026
2.849AsnIle: 2.849 ± 0.052
2.101AsnLys: 2.101 ± 0.048
3.904AsnLeu: 3.904 ± 0.058
0.992AsnMet: 0.992 ± 0.025
2.249AsnAsn: 2.249 ± 0.054
2.05AsnPro: 2.05 ± 0.04
2.063AsnGln: 2.063 ± 0.044
2.05AsnArg: 2.05 ± 0.042
2.775AsnSer: 2.775 ± 0.048
2.969AsnThr: 2.969 ± 0.052
3.169AsnVal: 3.169 ± 0.056
0.608AsnTrp: 0.608 ± 0.022
1.507AsnTyr: 1.507 ± 0.042
0.0AsnXaa: 0.0 ± 0.0
Pro
2.886ProAla: 2.886 ± 0.051
0.272ProCys: 0.272 ± 0.016
2.576ProAsp: 2.576 ± 0.052
3.13ProGlu: 3.13 ± 0.053
1.816ProPhe: 1.816 ± 0.038
2.262ProGly: 2.262 ± 0.048
0.878ProHis: 0.878 ± 0.027
2.429ProIle: 2.429 ± 0.039
1.751ProLys: 1.751 ± 0.038
3.966ProLeu: 3.966 ± 0.06
0.961ProMet: 0.961 ± 0.027
1.846ProAsn: 1.846 ± 0.043
1.285ProPro: 1.285 ± 0.037
1.567ProGln: 1.567 ± 0.032
1.351ProArg: 1.351 ± 0.033
2.869ProSer: 2.869 ± 0.054
2.355ProThr: 2.355 ± 0.046
3.123ProVal: 3.123 ± 0.053
0.504ProTrp: 0.504 ± 0.022
1.25ProTyr: 1.25 ± 0.035
0.0ProXaa: 0.0 ± 0.0
Gln
3.861GlnAla: 3.861 ± 0.063
0.372GlnCys: 0.372 ± 0.02
1.967GlnAsp: 1.967 ± 0.046
2.308GlnGlu: 2.308 ± 0.049
1.777GlnPhe: 1.777 ± 0.039
2.823GlnGly: 2.823 ± 0.052
1.112GlnHis: 1.112 ± 0.03
2.353GlnIle: 2.353 ± 0.043
1.794GlnLys: 1.794 ± 0.042
4.459GlnLeu: 4.459 ± 0.071
1.016GlnMet: 1.016 ± 0.026
1.683GlnAsn: 1.683 ± 0.042
1.525GlnPro: 1.525 ± 0.033
2.539GlnGln: 2.539 ± 0.055
2.363GlnArg: 2.363 ± 0.048
3.04GlnSer: 3.04 ± 0.053
2.3GlnThr: 2.3 ± 0.044
2.851GlnVal: 2.851 ± 0.055
0.682GlnTrp: 0.682 ± 0.025
1.306GlnTyr: 1.306 ± 0.034
0.0GlnXaa: 0.0 ± 0.0
Arg
3.539ArgAla: 3.539 ± 0.056
0.398ArgCys: 0.398 ± 0.019
2.57ArgAsp: 2.57 ± 0.051
2.917ArgGlu: 2.917 ± 0.059
2.291ArgPhe: 2.291 ± 0.048
2.721ArgGly: 2.721 ± 0.046
1.069ArgHis: 1.069 ± 0.031
2.898ArgIle: 2.898 ± 0.049
2.09ArgLys: 2.09 ± 0.042
4.66ArgLeu: 4.66 ± 0.064
1.14ArgMet: 1.14 ± 0.031
1.905ArgAsn: 1.905 ± 0.039
1.537ArgPro: 1.537 ± 0.035
1.962ArgGln: 1.962 ± 0.042
2.202ArgArg: 2.202 ± 0.048
2.596ArgSer: 2.596 ± 0.049
2.264ArgThr: 2.264 ± 0.044
3.369ArgVal: 3.369 ± 0.054
0.679ArgTrp: 0.679 ± 0.023
1.821ArgTyr: 1.821 ± 0.041
0.0ArgXaa: 0.0 ± 0.0
Ser
6.074SerAla: 6.074 ± 0.074
0.612SerCys: 0.612 ± 0.022
4.377SerAsp: 4.377 ± 0.065
4.52SerGlu: 4.52 ± 0.07
3.164SerPhe: 3.164 ± 0.053
5.148SerGly: 5.148 ± 0.076
1.606SerHis: 1.606 ± 0.035
4.313SerIle: 4.313 ± 0.068
2.946SerLys: 2.946 ± 0.05
7.562SerLeu: 7.562 ± 0.089
1.676SerMet: 1.676 ± 0.037
2.999SerAsn: 2.999 ± 0.047
2.835SerPro: 2.835 ± 0.047
3.071SerGln: 3.071 ± 0.059
3.039SerArg: 3.039 ± 0.059
5.15SerSer: 5.15 ± 0.084
3.95SerThr: 3.95 ± 0.06
5.449SerVal: 5.449 ± 0.074
0.856SerTrp: 0.856 ± 0.029
2.275SerTyr: 2.275 ± 0.049
0.0SerXaa: 0.0 ± 0.0
Thr
4.664ThrAla: 4.664 ± 0.071
0.455ThrCys: 0.455 ± 0.021
3.378ThrAsp: 3.378 ± 0.064
3.277ThrGlu: 3.277 ± 0.056
2.481ThrPhe: 2.481 ± 0.048
4.21ThrGly: 4.21 ± 0.064
1.341ThrHis: 1.341 ± 0.034
3.445ThrIle: 3.445 ± 0.058
2.18ThrLys: 2.18 ± 0.044
6.807ThrLeu: 6.807 ± 0.078
1.159ThrMet: 1.159 ± 0.028
2.315ThrAsn: 2.315 ± 0.047
2.974ThrPro: 2.974 ± 0.05
2.668ThrGln: 2.668 ± 0.043
2.385ThrArg: 2.385 ± 0.037
4.093ThrSer: 4.093 ± 0.064
3.34ThrThr: 3.34 ± 0.056
4.156ThrVal: 4.156 ± 0.065
0.679ThrTrp: 0.679 ± 0.024
1.805ThrTyr: 1.805 ± 0.053
0.0ThrXaa: 0.0 ± 0.0
Val
6.448ValAla: 6.448 ± 0.074
0.722ValCys: 0.722 ± 0.024
4.443ValAsp: 4.443 ± 0.06
4.717ValGlu: 4.717 ± 0.062
3.174ValPhe: 3.174 ± 0.054
4.738ValGly: 4.738 ± 0.071
1.266ValHis: 1.266 ± 0.033
4.632ValIle: 4.632 ± 0.071
3.441ValLys: 3.441 ± 0.05
6.887ValLeu: 6.887 ± 0.092
1.844ValMet: 1.844 ± 0.039
3.496ValAsn: 3.496 ± 0.064
2.762ValPro: 2.762 ± 0.05
2.208ValGln: 2.208 ± 0.047
2.938ValArg: 2.938 ± 0.052
6.041ValSer: 6.041 ± 0.068
4.659ValThr: 4.659 ± 0.062
5.761ValVal: 5.761 ± 0.082
0.763ValTrp: 0.763 ± 0.025
2.033ValTyr: 2.033 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
0.82TrpAla: 0.82 ± 0.023
0.142TrpCys: 0.142 ± 0.011
0.662TrpAsp: 0.662 ± 0.021
0.673TrpGlu: 0.673 ± 0.024
0.612TrpPhe: 0.612 ± 0.019
0.802TrpGly: 0.802 ± 0.026
0.366TrpHis: 0.366 ± 0.019
0.691TrpIle: 0.691 ± 0.025
0.522TrpLys: 0.522 ± 0.019
1.616TrpLeu: 1.616 ± 0.041
0.323TrpMet: 0.323 ± 0.016
0.484TrpAsn: 0.484 ± 0.02
0.479TrpPro: 0.479 ± 0.023
0.812TrpGln: 0.812 ± 0.025
0.747TrpArg: 0.747 ± 0.022
0.764TrpSer: 0.764 ± 0.026
0.572TrpThr: 0.572 ± 0.023
0.892TrpVal: 0.892 ± 0.031
0.19TrpTrp: 0.19 ± 0.012
0.416TrpTyr: 0.416 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.504TyrAla: 2.504 ± 0.041
0.332TyrCys: 0.332 ± 0.017
1.911TyrAsp: 1.911 ± 0.051
1.868TyrGlu: 1.868 ± 0.046
1.578TyrPhe: 1.578 ± 0.035
2.223TyrGly: 2.223 ± 0.046
0.807TyrHis: 0.807 ± 0.025
1.622TyrIle: 1.622 ± 0.039
1.272TyrLys: 1.272 ± 0.031
3.298TyrLeu: 3.298 ± 0.051
0.639TyrMet: 0.639 ± 0.024
1.289TyrAsn: 1.289 ± 0.038
1.332TyrPro: 1.332 ± 0.034
1.653TyrGln: 1.653 ± 0.041
1.771TyrArg: 1.771 ± 0.04
2.35TyrSer: 2.35 ± 0.053
1.814TyrThr: 1.814 ± 0.055
2.026TyrVal: 2.026 ± 0.038
0.528TyrTrp: 0.528 ± 0.02
1.146TyrTyr: 1.146 ± 0.031
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 3846 proteins (1317231 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