Amino acid dipepetide frequency for Spirochaeta lutea

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
7.615AlaAla: 7.615 ± 0.12
0.542AlaCys: 0.542 ± 0.031
4.064AlaAsp: 4.064 ± 0.074
5.182AlaGlu: 5.182 ± 0.087
3.036AlaPhe: 3.036 ± 0.064
7.725AlaGly: 7.725 ± 0.129
1.297AlaHis: 1.297 ± 0.043
4.545AlaIle: 4.545 ± 0.08
2.86AlaLys: 2.86 ± 0.068
9.12AlaLeu: 9.12 ± 0.119
2.068AlaMet: 2.068 ± 0.056
2.033AlaAsn: 2.033 ± 0.051
3.109AlaPro: 3.109 ± 0.069
3.617AlaGln: 3.617 ± 0.078
4.819AlaArg: 4.819 ± 0.083
4.678AlaSer: 4.678 ± 0.091
3.053AlaThr: 3.053 ± 0.062
5.869AlaVal: 5.869 ± 0.096
0.915AlaTrp: 0.915 ± 0.034
2.287AlaTyr: 2.287 ± 0.053
0.0AlaXaa: 0.0 ± 0.0
Cys
0.481CysAla: 0.481 ± 0.027
0.095CysCys: 0.095 ± 0.01
0.273CysAsp: 0.273 ± 0.019
0.321CysGlu: 0.321 ± 0.021
0.306CysPhe: 0.306 ± 0.019
0.629CysGly: 0.629 ± 0.036
0.146CysHis: 0.146 ± 0.014
0.472CysIle: 0.472 ± 0.028
0.228CysLys: 0.228 ± 0.017
0.691CysLeu: 0.691 ± 0.033
0.157CysMet: 0.157 ± 0.013
0.196CysAsn: 0.196 ± 0.015
0.384CysPro: 0.384 ± 0.027
0.215CysGln: 0.215 ± 0.019
0.495CysArg: 0.495 ± 0.025
0.479CysSer: 0.479 ± 0.027
0.396CysThr: 0.396 ± 0.024
0.357CysVal: 0.357 ± 0.024
0.058CysTrp: 0.058 ± 0.007
0.208CysTyr: 0.208 ± 0.018
0.0CysXaa: 0.0 ± 0.0
Asp
3.817AspAla: 3.817 ± 0.072
0.383AspCys: 0.383 ± 0.024
2.631AspAsp: 2.631 ± 0.075
3.611AspGlu: 3.611 ± 0.078
2.821AspPhe: 2.821 ± 0.068
3.957AspGly: 3.957 ± 0.098
1.136AspHis: 1.136 ± 0.038
3.457AspIle: 3.457 ± 0.076
1.584AspLys: 1.584 ± 0.049
6.06AspLeu: 6.06 ± 0.09
1.076AspMet: 1.076 ± 0.037
1.462AspAsn: 1.462 ± 0.046
3.367AspPro: 3.367 ± 0.064
2.67AspGln: 2.67 ± 0.062
3.296AspArg: 3.296 ± 0.069
3.818AspSer: 3.818 ± 0.082
2.964AspThr: 2.964 ± 0.092
3.088AspVal: 3.088 ± 0.062
0.748AspTrp: 0.748 ± 0.035
2.042AspTyr: 2.042 ± 0.055
0.0AspXaa: 0.0 ± 0.0
Glu
5.509GluAla: 5.509 ± 0.094
0.314GluCys: 0.314 ± 0.024
4.009GluAsp: 4.009 ± 0.088
4.937GluGlu: 4.937 ± 0.102
2.609GluPhe: 2.609 ± 0.068
4.577GluGly: 4.577 ± 0.075
1.384GluHis: 1.384 ± 0.04
4.756GluIle: 4.756 ± 0.079
3.002GluLys: 3.002 ± 0.083
6.992GluLeu: 6.992 ± 0.104
1.429GluMet: 1.429 ± 0.044
2.573GluAsn: 2.573 ± 0.065
2.656GluPro: 2.656 ± 0.077
3.271GluGln: 3.271 ± 0.077
3.368GluArg: 3.368 ± 0.061
4.188GluSer: 4.188 ± 0.08
3.641GluThr: 3.641 ± 0.072
4.5GluVal: 4.5 ± 0.09
0.615GluTrp: 0.615 ± 0.028
2.341GluTyr: 2.341 ± 0.059
0.0GluXaa: 0.0 ± 0.0
Phe
2.948PheAla: 2.948 ± 0.065
0.355PheCys: 0.355 ± 0.022
2.341PheAsp: 2.341 ± 0.051
2.37PheGlu: 2.37 ± 0.055
2.221PhePhe: 2.221 ± 0.055
3.279PheGly: 3.279 ± 0.066
0.784PheHis: 0.784 ± 0.031
2.805PheIle: 2.805 ± 0.059
1.226PheLys: 1.226 ± 0.044
4.694PheLeu: 4.694 ± 0.071
0.857PheMet: 0.857 ± 0.032
1.358PheAsn: 1.358 ± 0.043
2.044PhePro: 2.044 ± 0.057
1.718PheGln: 1.718 ± 0.045
2.33PheArg: 2.33 ± 0.058
3.689PheSer: 3.689 ± 0.066
2.682PheThr: 2.682 ± 0.063
2.267PheVal: 2.267 ± 0.06
0.62PheTrp: 0.62 ± 0.027
1.293PheTyr: 1.293 ± 0.042
0.0PheXaa: 0.0 ± 0.0
Gly
6.039GlyAla: 6.039 ± 0.11
0.689GlyCys: 0.689 ± 0.035
4.379GlyAsp: 4.379 ± 0.076
4.786GlyGlu: 4.786 ± 0.087
4.174GlyPhe: 4.174 ± 0.078
6.171GlyGly: 6.171 ± 0.136
1.339GlyHis: 1.339 ± 0.04
6.554GlyIle: 6.554 ± 0.108
3.27GlyLys: 3.27 ± 0.075
8.905GlyLeu: 8.905 ± 0.127
2.264GlyMet: 2.264 ± 0.052
2.567GlyAsn: 2.567 ± 0.067
2.809GlyPro: 2.809 ± 0.076
2.923GlyGln: 2.923 ± 0.066
4.707GlyArg: 4.707 ± 0.093
5.66GlySer: 5.66 ± 0.096
4.937GlyThr: 4.937 ± 0.104
5.956GlyVal: 5.956 ± 0.085
1.053GlyTrp: 1.053 ± 0.036
2.774GlyTyr: 2.774 ± 0.066
0.001GlyXaa: 0.001 ± 0.001
His
1.364HisAla: 1.364 ± 0.043
0.177HisCys: 0.177 ± 0.017
0.883HisAsp: 0.883 ± 0.037
1.085HisGlu: 1.085 ± 0.038
0.763HisPhe: 0.763 ± 0.031
1.632HisGly: 1.632 ± 0.045
0.616HisHis: 0.616 ± 0.031
1.167HisIle: 1.167 ± 0.035
0.506HisLys: 0.506 ± 0.028
2.108HisLeu: 2.108 ± 0.056
0.344HisMet: 0.344 ± 0.02
0.614HisAsn: 0.614 ± 0.028
1.468HisPro: 1.468 ± 0.047
0.972HisGln: 0.972 ± 0.034
1.563HisArg: 1.563 ± 0.047
1.292HisSer: 1.292 ± 0.043
1.034HisThr: 1.034 ± 0.039
0.973HisVal: 0.973 ± 0.036
0.264HisTrp: 0.264 ± 0.023
0.593HisTyr: 0.593 ± 0.029
0.0HisXaa: 0.0 ± 0.0
Ile
5.104IleAla: 5.104 ± 0.087
0.52IleCys: 0.52 ± 0.028
3.444IleAsp: 3.444 ± 0.072
4.071IleGlu: 4.071 ± 0.08
2.434IlePhe: 2.434 ± 0.061
4.318IleGly: 4.318 ± 0.094
1.523IleHis: 1.523 ± 0.04
4.275IleIle: 4.275 ± 0.101
2.189IleLys: 2.189 ± 0.066
7.529IleLeu: 7.529 ± 0.112
1.298IleMet: 1.298 ± 0.042
2.145IleAsn: 2.145 ± 0.057
3.921IlePro: 3.921 ± 0.074
3.281IleGln: 3.281 ± 0.066
4.192IleArg: 4.192 ± 0.071
4.726IleSer: 4.726 ± 0.089
4.332IleThr: 4.332 ± 0.078
3.571IleVal: 3.571 ± 0.062
0.604IleTrp: 0.604 ± 0.028
1.689IleTyr: 1.689 ± 0.047
0.0IleXaa: 0.0 ± 0.0
Lys
3.188LysAla: 3.188 ± 0.073
0.144LysCys: 0.144 ± 0.017
2.242LysAsp: 2.242 ± 0.061
2.814LysGlu: 2.814 ± 0.08
0.892LysPhe: 0.892 ± 0.037
2.474LysGly: 2.474 ± 0.07
0.737LysHis: 0.737 ± 0.031
2.536LysIle: 2.536 ± 0.066
2.515LysLys: 2.515 ± 0.079
2.969LysLeu: 2.969 ± 0.076
0.781LysMet: 0.781 ± 0.039
1.819LysAsn: 1.819 ± 0.059
2.018LysPro: 2.018 ± 0.053
1.675LysGln: 1.675 ± 0.05
2.288LysArg: 2.288 ± 0.06
2.236LysSer: 2.236 ± 0.055
2.726LysThr: 2.726 ± 0.066
2.194LysVal: 2.194 ± 0.063
0.272LysTrp: 0.272 ± 0.016
0.923LysTyr: 0.923 ± 0.037
0.0LysXaa: 0.0 ± 0.0
Leu
8.674LeuAla: 8.674 ± 0.131
0.665LeuCys: 0.665 ± 0.027
5.807LeuAsp: 5.807 ± 0.091
8.067LeuGlu: 8.067 ± 0.114
4.541LeuPhe: 4.541 ± 0.073
9.536LeuGly: 9.536 ± 0.142
2.025LeuHis: 2.025 ± 0.05
6.065LeuIle: 6.065 ± 0.107
3.931LeuLys: 3.931 ± 0.083
11.021LeuLeu: 11.021 ± 0.155
2.138LeuMet: 2.138 ± 0.053
3.455LeuAsn: 3.455 ± 0.058
5.583LeuPro: 5.583 ± 0.105
4.364LeuGln: 4.364 ± 0.092
6.034LeuArg: 6.034 ± 0.097
8.245LeuSer: 8.245 ± 0.123
6.024LeuThr: 6.024 ± 0.088
7.451LeuVal: 7.451 ± 0.109
1.213LeuTrp: 1.213 ± 0.044
3.041LeuTyr: 3.041 ± 0.07
0.0LeuXaa: 0.0 ± 0.0
Met
2.124MetAla: 2.124 ± 0.054
0.092MetCys: 0.092 ± 0.011
1.398MetAsp: 1.398 ± 0.039
1.607MetGlu: 1.607 ± 0.043
0.65MetPhe: 0.65 ± 0.029
1.68MetGly: 1.68 ± 0.05
0.356MetHis: 0.356 ± 0.022
1.497MetIle: 1.497 ± 0.044
1.319MetLys: 1.319 ± 0.037
1.828MetLeu: 1.828 ± 0.047
0.513MetMet: 0.513 ± 0.028
1.115MetAsn: 1.115 ± 0.035
1.003MetPro: 1.003 ± 0.04
0.766MetGln: 0.766 ± 0.033
1.059MetArg: 1.059 ± 0.039
1.301MetSer: 1.301 ± 0.039
1.209MetThr: 1.209 ± 0.041
1.954MetVal: 1.954 ± 0.047
0.146MetTrp: 0.146 ± 0.013
0.561MetTyr: 0.561 ± 0.027
0.0MetXaa: 0.0 ± 0.0
Asn
2.377AsnAla: 2.377 ± 0.065
0.208AsnCys: 0.208 ± 0.015
1.474AsnAsp: 1.474 ± 0.045
1.684AsnGlu: 1.684 ± 0.047
1.226AsnPhe: 1.226 ± 0.042
2.129AsnGly: 2.129 ± 0.068
0.848AsnHis: 0.848 ± 0.035
2.083AsnIle: 2.083 ± 0.052
1.225AsnLys: 1.225 ± 0.043
4.168AsnLeu: 4.168 ± 0.073
0.672AsnMet: 0.672 ± 0.028
1.163AsnAsn: 1.163 ± 0.038
2.793AsnPro: 2.793 ± 0.06
1.691AsnGln: 1.691 ± 0.046
2.422AsnArg: 2.422 ± 0.055
2.092AsnSer: 2.092 ± 0.058
2.121AsnThr: 2.121 ± 0.054
1.448AsnVal: 1.448 ± 0.051
0.383AsnTrp: 0.383 ± 0.024
1.007AsnTyr: 1.007 ± 0.038
0.0AsnXaa: 0.0 ± 0.0
Pro
3.651ProAla: 3.651 ± 0.076
0.27ProCys: 0.27 ± 0.018
3.224ProAsp: 3.224 ± 0.072
4.75ProGlu: 4.75 ± 0.083
1.683ProPhe: 1.683 ± 0.048
6.114ProGly: 6.114 ± 0.132
0.893ProHis: 0.893 ± 0.035
2.147ProIle: 2.147 ± 0.052
1.62ProLys: 1.62 ± 0.049
4.588ProLeu: 4.588 ± 0.09
1.011ProMet: 1.011 ± 0.036
1.331ProAsn: 1.331 ± 0.047
2.194ProPro: 2.194 ± 0.091
2.281ProGln: 2.281 ± 0.064
3.139ProArg: 3.139 ± 0.084
2.965ProSer: 2.965 ± 0.071
1.855ProThr: 1.855 ± 0.046
3.751ProVal: 3.751 ± 0.071
0.74ProTrp: 0.74 ± 0.035
1.347ProTyr: 1.347 ± 0.041
0.0ProXaa: 0.0 ± 0.0
Gln
4.275GlnAla: 4.275 ± 0.08
0.182GlnCys: 0.182 ± 0.015
2.684GlnAsp: 2.684 ± 0.068
3.796GlnGlu: 3.796 ± 0.082
1.473GlnPhe: 1.473 ± 0.043
4.342GlnGly: 4.342 ± 0.081
0.712GlnHis: 0.712 ± 0.033
2.822GlnIle: 2.822 ± 0.058
1.695GlnLys: 1.695 ± 0.052
3.532GlnLeu: 3.532 ± 0.076
0.858GlnMet: 0.858 ± 0.036
1.75GlnAsn: 1.75 ± 0.049
1.822GlnPro: 1.822 ± 0.054
1.785GlnGln: 1.785 ± 0.056
2.547GlnArg: 2.547 ± 0.072
2.571GlnSer: 2.571 ± 0.064
2.408GlnThr: 2.408 ± 0.056
3.09GlnVal: 3.09 ± 0.065
0.53GlnTrp: 0.53 ± 0.028
1.181GlnTyr: 1.181 ± 0.04
0.001GlnXaa: 0.001 ± 0.001
Arg
4.26ArgAla: 4.26 ± 0.072
0.353ArgCys: 0.353 ± 0.022
3.419ArgAsp: 3.419 ± 0.061
4.406ArgGlu: 4.406 ± 0.074
2.88ArgPhe: 2.88 ± 0.062
4.939ArgGly: 4.939 ± 0.107
1.033ArgHis: 1.033 ± 0.036
4.876ArgIle: 4.876 ± 0.08
2.441ArgLys: 2.441 ± 0.056
6.25ArgLeu: 6.25 ± 0.094
1.507ArgMet: 1.507 ± 0.047
2.165ArgAsn: 2.165 ± 0.05
2.287ArgPro: 2.287 ± 0.06
2.422ArgGln: 2.422 ± 0.055
4.187ArgArg: 4.187 ± 0.089
3.722ArgSer: 3.722 ± 0.079
2.984ArgThr: 2.984 ± 0.056
4.288ArgVal: 4.288 ± 0.075
0.766ArgTrp: 0.766 ± 0.034
2.024ArgTyr: 2.024 ± 0.046
0.0ArgXaa: 0.0 ± 0.0
Ser
4.866SerAla: 4.866 ± 0.082
0.469SerCys: 0.469 ± 0.026
3.149SerAsp: 3.149 ± 0.072
3.686SerGlu: 3.686 ± 0.072
2.932SerPhe: 2.932 ± 0.066
6.12SerGly: 6.12 ± 0.09
1.272SerHis: 1.272 ± 0.044
4.476SerIle: 4.476 ± 0.091
2.116SerLys: 2.116 ± 0.05
8.118SerLeu: 8.118 ± 0.116
1.564SerMet: 1.564 ± 0.041
1.904SerAsn: 1.904 ± 0.047
3.708SerPro: 3.708 ± 0.083
3.19SerGln: 3.19 ± 0.068
4.639SerArg: 4.639 ± 0.089
4.319SerSer: 4.319 ± 0.079
3.383SerThr: 3.383 ± 0.074
4.086SerVal: 4.086 ± 0.067
1.002SerTrp: 1.002 ± 0.038
1.982SerTyr: 1.982 ± 0.051
0.0SerXaa: 0.0 ± 0.0
Thr
4.666ThrAla: 4.666 ± 0.083
0.329ThrCys: 0.329 ± 0.021
2.684ThrAsp: 2.684 ± 0.086
3.036ThrGlu: 3.036 ± 0.062
1.87ThrPhe: 1.87 ± 0.054
5.034ThrGly: 5.034 ± 0.084
0.985ThrHis: 0.985 ± 0.035
3.725ThrIle: 3.725 ± 0.074
1.874ThrLys: 1.874 ± 0.05
6.654ThrLeu: 6.654 ± 0.109
1.327ThrMet: 1.327 ± 0.039
1.577ThrAsn: 1.577 ± 0.04
3.089ThrPro: 3.089 ± 0.075
2.299ThrGln: 2.299 ± 0.057
3.371ThrArg: 3.371 ± 0.067
3.28ThrSer: 3.28 ± 0.075
2.873ThrThr: 2.873 ± 0.081
3.808ThrVal: 3.808 ± 0.082
0.717ThrTrp: 0.717 ± 0.034
1.572ThrTyr: 1.572 ± 0.052
0.0ThrXaa: 0.0 ± 0.0
Val
4.472ValAla: 4.472 ± 0.081
0.507ValCys: 0.507 ± 0.028
3.615ValAsp: 3.615 ± 0.076
4.048ValGlu: 4.048 ± 0.085
3.424ValPhe: 3.424 ± 0.069
4.146ValGly: 4.146 ± 0.083
1.342ValHis: 1.342 ± 0.045
4.343ValIle: 4.343 ± 0.076
2.227ValLys: 2.227 ± 0.062
7.906ValLeu: 7.906 ± 0.117
1.421ValMet: 1.421 ± 0.048
2.23ValAsn: 2.23 ± 0.062
3.257ValPro: 3.257 ± 0.066
2.774ValGln: 2.774 ± 0.063
3.607ValArg: 3.607 ± 0.07
4.917ValSer: 4.917 ± 0.082
3.766ValThr: 3.766 ± 0.079
4.91ValVal: 4.91 ± 0.09
0.734ValTrp: 0.734 ± 0.026
2.235ValTyr: 2.235 ± 0.047
0.0ValXaa: 0.0 ± 0.0
Trp
0.899TrpAla: 0.899 ± 0.041
0.06TrpCys: 0.06 ± 0.008
0.662TrpAsp: 0.662 ± 0.03
0.738TrpGlu: 0.738 ± 0.031
0.584TrpPhe: 0.584 ± 0.026
0.928TrpGly: 0.928 ± 0.037
0.236TrpHis: 0.236 ± 0.017
0.868TrpIle: 0.868 ± 0.035
0.549TrpLys: 0.549 ± 0.025
1.157TrpLeu: 1.157 ± 0.04
0.336TrpMet: 0.336 ± 0.021
0.608TrpAsn: 0.608 ± 0.031
0.42TrpPro: 0.42 ± 0.024
0.627TrpGln: 0.627 ± 0.029
0.624TrpArg: 0.624 ± 0.028
0.677TrpSer: 0.677 ± 0.033
0.575TrpThr: 0.575 ± 0.028
0.786TrpVal: 0.786 ± 0.035
0.175TrpTrp: 0.175 ± 0.018
0.469TrpTyr: 0.469 ± 0.025
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.103TyrAla: 2.103 ± 0.049
0.234TyrCys: 0.234 ± 0.017
1.608TyrAsp: 1.608 ± 0.041
1.679TyrGlu: 1.679 ± 0.052
1.362TyrPhe: 1.362 ± 0.045
2.228TyrGly: 2.228 ± 0.05
0.755TyrHis: 0.755 ± 0.031
1.696TyrIle: 1.696 ± 0.044
1.064TyrLys: 1.064 ± 0.044
3.593TyrLeu: 3.593 ± 0.078
0.556TyrMet: 0.556 ± 0.027
1.153TyrAsn: 1.153 ± 0.044
1.62TyrPro: 1.62 ± 0.047
1.513TyrGln: 1.513 ± 0.045
2.521TyrArg: 2.521 ± 0.063
2.123TyrSer: 2.123 ± 0.06
1.807TyrThr: 1.807 ± 0.055
1.529TyrVal: 1.529 ± 0.046
0.423TyrTrp: 0.423 ± 0.023
1.184TyrTyr: 1.184 ± 0.046
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
0.001XaaGly: 0.001 ± 0.001
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
0.001XaaPro: 0.001 ± 0.001
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 2285 proteins (806388 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