Amino acid dipepetide frequency for Novosphingobium sp. PP1Y

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
16.287AlaAla: 16.287 ± 0.149
1.157AlaCys: 1.157 ± 0.03
6.916AlaAsp: 6.916 ± 0.075
7.277AlaGlu: 7.277 ± 0.092
4.303AlaPhe: 4.303 ± 0.054
10.732AlaGly: 10.732 ± 0.102
2.341AlaHis: 2.341 ± 0.045
6.606AlaIle: 6.606 ± 0.073
3.94AlaLys: 3.94 ± 0.069
12.99AlaLeu: 12.99 ± 0.119
3.866AlaMet: 3.866 ± 0.06
3.185AlaAsn: 3.185 ± 0.052
5.727AlaPro: 5.727 ± 0.07
4.625AlaGln: 4.625 ± 0.057
9.287AlaArg: 9.287 ± 0.104
7.097AlaSer: 7.097 ± 0.088
5.791AlaThr: 5.791 ± 0.065
8.131AlaVal: 8.131 ± 0.073
1.669AlaTrp: 1.669 ± 0.037
2.589AlaTyr: 2.589 ± 0.036
0.0AlaXaa: 0.0 ± 0.0
Cys
1.111CysAla: 1.111 ± 0.028
0.123CysCys: 0.123 ± 0.009
0.591CysAsp: 0.591 ± 0.017
0.568CysGlu: 0.568 ± 0.021
0.33CysPhe: 0.33 ± 0.016
0.963CysGly: 0.963 ± 0.025
0.264CysHis: 0.264 ± 0.017
0.399CysIle: 0.399 ± 0.016
0.207CysLys: 0.207 ± 0.011
0.788CysLeu: 0.788 ± 0.021
0.18CysMet: 0.18 ± 0.011
0.287CysAsn: 0.287 ± 0.015
0.505CysPro: 0.505 ± 0.019
0.261CysGln: 0.261 ± 0.013
0.628CysArg: 0.628 ± 0.024
0.552CysSer: 0.552 ± 0.023
0.434CysThr: 0.434 ± 0.02
0.603CysVal: 0.603 ± 0.019
0.14CysTrp: 0.14 ± 0.009
0.193CysTyr: 0.193 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
7.163AspAla: 7.163 ± 0.074
0.557AspCys: 0.557 ± 0.019
3.196AspAsp: 3.196 ± 0.055
3.68AspGlu: 3.68 ± 0.054
2.302AspPhe: 2.302 ± 0.04
5.373AspGly: 5.373 ± 0.067
1.365AspHis: 1.365 ± 0.034
2.915AspIle: 2.915 ± 0.045
1.869AspLys: 1.869 ± 0.038
5.9AspLeu: 5.9 ± 0.067
1.453AspMet: 1.453 ± 0.032
1.483AspAsn: 1.483 ± 0.035
3.646AspPro: 3.646 ± 0.047
1.716AspGln: 1.716 ± 0.034
4.507AspArg: 4.507 ± 0.052
2.466AspSer: 2.466 ± 0.04
2.738AspThr: 2.738 ± 0.049
3.945AspVal: 3.945 ± 0.052
1.176AspTrp: 1.176 ± 0.028
1.651AspTyr: 1.651 ± 0.039
0.0AspXaa: 0.0 ± 0.0
Glu
7.919GluAla: 7.919 ± 0.091
0.395GluCys: 0.395 ± 0.017
3.083GluAsp: 3.083 ± 0.044
3.357GluGlu: 3.357 ± 0.06
1.804GluPhe: 1.804 ± 0.037
4.844GluGly: 4.844 ± 0.056
1.244GluHis: 1.244 ± 0.031
3.187GluIle: 3.187 ± 0.041
2.233GluLys: 2.233 ± 0.047
5.468GluLeu: 5.468 ± 0.064
1.491GluMet: 1.491 ± 0.032
1.567GluAsn: 1.567 ± 0.037
2.717GluPro: 2.717 ± 0.046
2.28GluGln: 2.28 ± 0.037
4.982GluArg: 4.982 ± 0.065
2.568GluSer: 2.568 ± 0.04
3.371GluThr: 3.371 ± 0.042
3.905GluVal: 3.905 ± 0.06
0.851GluTrp: 0.851 ± 0.023
1.09GluTyr: 1.09 ± 0.026
0.0GluXaa: 0.0 ± 0.0
Phe
4.8PheAla: 4.8 ± 0.056
0.37PheCys: 0.37 ± 0.017
2.766PheAsp: 2.766 ± 0.041
2.271PheGlu: 2.271 ± 0.041
1.297PhePhe: 1.297 ± 0.033
3.744PheGly: 3.744 ± 0.062
0.788PheHis: 0.788 ± 0.025
1.504PheIle: 1.504 ± 0.034
0.905PheLys: 0.905 ± 0.026
3.254PheLeu: 3.254 ± 0.048
0.833PheMet: 0.833 ± 0.024
1.098PheAsn: 1.098 ± 0.03
1.597PhePro: 1.597 ± 0.031
0.915PheGln: 0.915 ± 0.026
2.182PheArg: 2.182 ± 0.039
2.252PheSer: 2.252 ± 0.039
2.015PheThr: 2.015 ± 0.036
2.678PheVal: 2.678 ± 0.043
0.591PheTrp: 0.591 ± 0.021
0.93PheTyr: 0.93 ± 0.029
0.0PheXaa: 0.0 ± 0.0
Gly
9.391GlyAla: 9.391 ± 0.096
0.905GlyCys: 0.905 ± 0.025
4.609GlyAsp: 4.609 ± 0.066
5.164GlyGlu: 5.164 ± 0.065
3.652GlyPhe: 3.652 ± 0.044
7.613GlyGly: 7.613 ± 0.11
1.943GlyHis: 1.943 ± 0.038
4.612GlyIle: 4.612 ± 0.056
3.619GlyLys: 3.619 ± 0.053
8.719GlyLeu: 8.719 ± 0.098
2.42GlyMet: 2.42 ± 0.047
2.566GlyAsn: 2.566 ± 0.045
3.682GlyPro: 3.682 ± 0.049
3.064GlyGln: 3.064 ± 0.05
5.989GlyArg: 5.989 ± 0.068
5.263GlySer: 5.263 ± 0.074
4.86GlyThr: 4.86 ± 0.071
5.949GlyVal: 5.949 ± 0.062
1.514GlyTrp: 1.514 ± 0.032
2.449GlyTyr: 2.449 ± 0.05
0.0GlyXaa: 0.0 ± 0.0
His
2.425HisAla: 2.425 ± 0.039
0.263HisCys: 0.263 ± 0.014
1.271HisAsp: 1.271 ± 0.029
1.187HisGlu: 1.187 ± 0.026
0.912HisPhe: 0.912 ± 0.027
2.015HisGly: 2.015 ± 0.041
0.601HisHis: 0.601 ± 0.023
0.935HisIle: 0.935 ± 0.029
0.501HisLys: 0.501 ± 0.019
2.014HisLeu: 2.014 ± 0.038
0.508HisMet: 0.508 ± 0.019
0.449HisAsn: 0.449 ± 0.015
1.302HisPro: 1.302 ± 0.026
0.546HisGln: 0.546 ± 0.02
1.511HisArg: 1.511 ± 0.039
1.06HisSer: 1.06 ± 0.032
0.753HisThr: 0.753 ± 0.025
1.567HisVal: 1.567 ± 0.034
0.362HisTrp: 0.362 ± 0.014
0.641HisTyr: 0.641 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
7.586IleAla: 7.586 ± 0.073
0.469IleCys: 0.469 ± 0.018
3.902IleAsp: 3.902 ± 0.048
3.618IleGlu: 3.618 ± 0.049
1.634IlePhe: 1.634 ± 0.03
4.935IleGly: 4.935 ± 0.067
0.943IleHis: 0.943 ± 0.027
1.856IleIle: 1.856 ± 0.042
1.255IleLys: 1.255 ± 0.03
3.922IleLeu: 3.922 ± 0.055
0.978IleMet: 0.978 ± 0.029
1.341IleAsn: 1.341 ± 0.029
2.312IlePro: 2.312 ± 0.039
1.166IleGln: 1.166 ± 0.029
3.128IleArg: 3.128 ± 0.042
2.846IleSer: 2.846 ± 0.046
2.403IleThr: 2.403 ± 0.041
4.152IleVal: 4.152 ± 0.061
0.602IleTrp: 0.602 ± 0.022
1.118IleTyr: 1.118 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
4.181LysAla: 4.181 ± 0.063
0.186LysCys: 0.186 ± 0.011
1.683LysAsp: 1.683 ± 0.037
1.408LysGlu: 1.408 ± 0.039
0.939LysPhe: 0.939 ± 0.03
2.809LysGly: 2.809 ± 0.049
0.586LysHis: 0.586 ± 0.02
1.451LysIle: 1.451 ± 0.03
1.016LysLys: 1.016 ± 0.036
3.239LysLeu: 3.239 ± 0.049
0.762LysMet: 0.762 ± 0.022
0.753LysAsn: 0.753 ± 0.023
1.956LysPro: 1.956 ± 0.046
1.053LysGln: 1.053 ± 0.029
2.209LysArg: 2.209 ± 0.041
1.713LysSer: 1.713 ± 0.037
1.672LysThr: 1.672 ± 0.033
2.516LysVal: 2.516 ± 0.051
0.414LysTrp: 0.414 ± 0.017
0.646LysTyr: 0.646 ± 0.023
0.0LysXaa: 0.0 ± 0.0
Leu
13.684LeuAla: 13.684 ± 0.135
0.928LeuCys: 0.928 ± 0.028
6.287LeuAsp: 6.287 ± 0.069
5.509LeuGlu: 5.509 ± 0.07
3.545LeuPhe: 3.545 ± 0.058
8.455LeuGly: 8.455 ± 0.089
1.896LeuHis: 1.896 ± 0.039
4.483LeuIle: 4.483 ± 0.059
3.011LeuLys: 3.011 ± 0.045
9.044LeuLeu: 9.044 ± 0.109
2.062LeuMet: 2.062 ± 0.043
2.393LeuAsn: 2.393 ± 0.042
5.462LeuPro: 5.462 ± 0.058
2.711LeuGln: 2.711 ± 0.043
6.88LeuArg: 6.88 ± 0.072
6.311LeuSer: 6.311 ± 0.069
5.371LeuThr: 5.371 ± 0.063
7.172LeuVal: 7.172 ± 0.082
1.125LeuTrp: 1.125 ± 0.028
1.962LeuTyr: 1.962 ± 0.035
0.0LeuXaa: 0.0 ± 0.0
Met
3.235MetAla: 3.235 ± 0.055
0.178MetCys: 0.178 ± 0.011
1.157MetAsp: 1.157 ± 0.03
1.177MetGlu: 1.177 ± 0.027
0.729MetPhe: 0.729 ± 0.024
1.9MetGly: 1.9 ± 0.038
0.483MetHis: 0.483 ± 0.02
1.316MetIle: 1.316 ± 0.033
0.945MetLys: 0.945 ± 0.026
2.611MetLeu: 2.611 ± 0.045
0.611MetMet: 0.611 ± 0.022
0.703MetAsn: 0.703 ± 0.023
1.595MetPro: 1.595 ± 0.036
0.818MetGln: 0.818 ± 0.025
1.822MetArg: 1.822 ± 0.034
1.55MetSer: 1.55 ± 0.034
1.697MetThr: 1.697 ± 0.034
1.647MetVal: 1.647 ± 0.034
0.212MetTrp: 0.212 ± 0.013
0.274MetTyr: 0.274 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
3.347AsnAla: 3.347 ± 0.043
0.298AsnCys: 0.298 ± 0.015
1.457AsnAsp: 1.457 ± 0.033
1.252AsnGlu: 1.252 ± 0.028
1.04AsnPhe: 1.04 ± 0.033
2.516AsnGly: 2.516 ± 0.046
0.496AsnHis: 0.496 ± 0.019
1.294AsnIle: 1.294 ± 0.032
0.62AsnLys: 0.62 ± 0.02
2.71AsnLeu: 2.71 ± 0.047
0.592AsnMet: 0.592 ± 0.02
0.656AsnAsn: 0.656 ± 0.022
1.805AsnPro: 1.805 ± 0.037
0.713AsnGln: 0.713 ± 0.022
1.983AsnArg: 1.983 ± 0.04
1.384AsnSer: 1.384 ± 0.032
1.159AsnThr: 1.159 ± 0.032
1.967AsnVal: 1.967 ± 0.037
0.507AsnTrp: 0.507 ± 0.017
0.766AsnTyr: 0.766 ± 0.027
0.0AsnXaa: 0.0 ± 0.0
Pro
6.218ProAla: 6.218 ± 0.082
0.377ProCys: 0.377 ± 0.016
3.65ProAsp: 3.65 ± 0.062
3.874ProGlu: 3.874 ± 0.054
1.93ProPhe: 1.93 ± 0.039
4.894ProGly: 4.894 ± 0.062
1.073ProHis: 1.073 ± 0.026
2.431ProIle: 2.431 ± 0.041
1.498ProLys: 1.498 ± 0.035
4.857ProLeu: 4.857 ± 0.056
1.219ProMet: 1.219 ± 0.026
1.24ProAsn: 1.24 ± 0.03
2.444ProPro: 2.444 ± 0.062
1.868ProGln: 1.868 ± 0.033
3.0ProArg: 3.0 ± 0.049
2.874ProSer: 2.874 ± 0.045
2.403ProThr: 2.403 ± 0.043
4.335ProVal: 4.335 ± 0.055
0.696ProTrp: 0.696 ± 0.026
1.12ProTyr: 1.12 ± 0.025
0.0ProXaa: 0.0 ± 0.0
Gln
4.147GlnAla: 4.147 ± 0.06
0.267GlnCys: 0.267 ± 0.014
1.647GlnAsp: 1.647 ± 0.033
1.557GlnGlu: 1.557 ± 0.033
1.217GlnPhe: 1.217 ± 0.029
2.589GlnGly: 2.589 ± 0.04
0.645GlnHis: 0.645 ± 0.02
1.86GlnIle: 1.86 ± 0.031
0.962GlnLys: 0.962 ± 0.024
3.109GlnLeu: 3.109 ± 0.045
0.85GlnMet: 0.85 ± 0.023
0.816GlnAsn: 0.816 ± 0.024
1.778GlnPro: 1.778 ± 0.038
1.107GlnGln: 1.107 ± 0.032
2.401GlnArg: 2.401 ± 0.044
1.882GlnSer: 1.882 ± 0.037
1.66GlnThr: 1.66 ± 0.035
2.566GlnVal: 2.566 ± 0.041
0.493GlnTrp: 0.493 ± 0.018
0.679GlnTyr: 0.679 ± 0.025
0.0GlnXaa: 0.0 ± 0.0
Arg
7.761ArgAla: 7.761 ± 0.082
0.566ArgCys: 0.566 ± 0.019
4.09ArgAsp: 4.09 ± 0.056
4.514ArgGlu: 4.514 ± 0.06
3.064ArgPhe: 3.064 ± 0.048
4.848ArgGly: 4.848 ± 0.061
1.716ArgHis: 1.716 ± 0.041
4.205ArgIle: 4.205 ± 0.06
2.632ArgLys: 2.632 ± 0.043
7.672ArgLeu: 7.672 ± 0.089
1.851ArgMet: 1.851 ± 0.037
1.991ArgAsn: 1.991 ± 0.035
3.52ArgPro: 3.52 ± 0.054
2.587ArgGln: 2.587 ± 0.046
5.467ArgArg: 5.467 ± 0.086
3.984ArgSer: 3.984 ± 0.058
3.535ArgThr: 3.535 ± 0.044
4.542ArgVal: 4.542 ± 0.059
1.108ArgTrp: 1.108 ± 0.028
1.823ArgTyr: 1.823 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
6.651SerAla: 6.651 ± 0.066
0.534SerCys: 0.534 ± 0.021
3.361SerAsp: 3.361 ± 0.052
3.057SerGlu: 3.057 ± 0.045
2.22SerPhe: 2.22 ± 0.044
5.842SerGly: 5.842 ± 0.08
1.156SerHis: 1.156 ± 0.027
2.77SerIle: 2.77 ± 0.042
1.547SerLys: 1.547 ± 0.039
5.652SerLeu: 5.652 ± 0.066
1.314SerMet: 1.314 ± 0.027
1.52SerAsn: 1.52 ± 0.038
2.972SerPro: 2.972 ± 0.046
1.919SerGln: 1.919 ± 0.036
3.947SerArg: 3.947 ± 0.06
3.186SerSer: 3.186 ± 0.059
2.706SerThr: 2.706 ± 0.046
3.949SerVal: 3.949 ± 0.056
0.82SerTrp: 0.82 ± 0.021
1.502SerTyr: 1.502 ± 0.036
0.0SerXaa: 0.0 ± 0.0
Thr
5.932ThrAla: 5.932 ± 0.076
0.509ThrCys: 0.509 ± 0.019
2.853ThrAsp: 2.853 ± 0.054
2.404ThrGlu: 2.404 ± 0.04
1.949ThrPhe: 1.949 ± 0.034
5.358ThrGly: 5.358 ± 0.082
0.95ThrHis: 0.95 ± 0.024
2.833ThrIle: 2.833 ± 0.045
1.269ThrLys: 1.269 ± 0.03
5.403ThrLeu: 5.403 ± 0.061
1.208ThrMet: 1.208 ± 0.027
1.311ThrAsn: 1.311 ± 0.034
3.169ThrPro: 3.169 ± 0.053
1.45ThrGln: 1.45 ± 0.029
3.431ThrArg: 3.431 ± 0.048
2.921ThrSer: 2.921 ± 0.052
2.499ThrThr: 2.499 ± 0.051
4.027ThrVal: 4.027 ± 0.052
0.68ThrTrp: 0.68 ± 0.02
1.261ThrTyr: 1.261 ± 0.032
0.0ThrXaa: 0.0 ± 0.0
Val
8.707ValAla: 8.707 ± 0.087
0.642ValCys: 0.642 ± 0.022
4.288ValAsp: 4.288 ± 0.057
4.592ValGlu: 4.592 ± 0.064
2.404ValPhe: 2.404 ± 0.04
5.381ValGly: 5.381 ± 0.06
1.393ValHis: 1.393 ± 0.033
3.828ValIle: 3.828 ± 0.053
1.945ValLys: 1.945 ± 0.044
6.918ValLeu: 6.918 ± 0.09
1.644ValMet: 1.644 ± 0.039
2.037ValAsn: 2.037 ± 0.041
4.002ValPro: 4.002 ± 0.052
2.052ValGln: 2.052 ± 0.032
4.999ValArg: 4.999 ± 0.06
4.486ValSer: 4.486 ± 0.06
4.426ValThr: 4.426 ± 0.057
5.132ValVal: 5.132 ± 0.074
0.868ValTrp: 0.868 ± 0.026
1.414ValTyr: 1.414 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.311TrpAla: 1.311 ± 0.033
0.151TrpCys: 0.151 ± 0.01
0.74TrpAsp: 0.74 ± 0.024
0.619TrpGlu: 0.619 ± 0.023
0.579TrpPhe: 0.579 ± 0.021
0.99TrpGly: 0.99 ± 0.028
0.395TrpHis: 0.395 ± 0.019
0.748TrpIle: 0.748 ± 0.024
0.557TrpLys: 0.557 ± 0.02
1.789TrpLeu: 1.789 ± 0.039
0.37TrpMet: 0.37 ± 0.018
0.518TrpAsn: 0.518 ± 0.02
0.728TrpPro: 0.728 ± 0.023
0.654TrpGln: 0.654 ± 0.021
1.212TrpArg: 1.212 ± 0.03
0.914TrpSer: 0.914 ± 0.024
0.799TrpThr: 0.799 ± 0.026
0.812TrpVal: 0.812 ± 0.023
0.239TrpTrp: 0.239 ± 0.012
0.312TrpTyr: 0.312 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.66TyrAla: 2.66 ± 0.041
0.254TyrCys: 0.254 ± 0.013
1.551TyrAsp: 1.551 ± 0.037
1.271TyrGlu: 1.271 ± 0.031
0.941TyrPhe: 0.941 ± 0.026
2.186TyrGly: 2.186 ± 0.043
0.544TyrHis: 0.544 ± 0.018
0.933TyrIle: 0.933 ± 0.021
0.656TyrLys: 0.656 ± 0.023
2.235TyrLeu: 2.235 ± 0.035
0.447TyrMet: 0.447 ± 0.018
0.648TyrAsn: 0.648 ± 0.023
1.082TyrPro: 1.082 ± 0.027
0.726TyrGln: 0.726 ± 0.021
1.913TyrArg: 1.913 ± 0.039
1.317TyrSer: 1.317 ± 0.031
1.127TyrThr: 1.127 ± 0.034
1.564TyrVal: 1.564 ± 0.032
0.366TyrTrp: 0.366 ± 0.015
0.664TyrTyr: 0.664 ± 0.026
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 4624 proteins (1530888 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