Amino acid dipepetide frequency for Desulfurobacterium indicum

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
4.937AlaAla: 4.937 ± 0.108
0.61AlaCys: 0.61 ± 0.037
3.055AlaAsp: 3.055 ± 0.082
5.002AlaGlu: 5.002 ± 0.103
3.648AlaPhe: 3.648 ± 0.093
5.052AlaGly: 5.052 ± 0.109
0.913AlaHis: 0.913 ± 0.041
5.499AlaIle: 5.499 ± 0.115
5.327AlaLys: 5.327 ± 0.108
6.725AlaLeu: 6.725 ± 0.126
1.477AlaMet: 1.477 ± 0.059
1.922AlaAsn: 1.922 ± 0.071
1.936AlaPro: 1.936 ± 0.065
1.307AlaGln: 1.307 ± 0.057
2.827AlaArg: 2.827 ± 0.083
3.326AlaSer: 3.326 ± 0.077
3.181AlaThr: 3.181 ± 0.087
5.862AlaVal: 5.862 ± 0.127
0.358AlaTrp: 0.358 ± 0.028
2.229AlaTyr: 2.229 ± 0.074
0.0AlaXaa: 0.0 ± 0.0
Cys
0.574CysAla: 0.574 ± 0.041
0.15CysCys: 0.15 ± 0.022
0.447CysAsp: 0.447 ± 0.034
0.598CysGlu: 0.598 ± 0.036
0.449CysPhe: 0.449 ± 0.032
1.083CysGly: 1.083 ± 0.053
0.394CysHis: 0.394 ± 0.07
0.683CysIle: 0.683 ± 0.038
0.77CysLys: 0.77 ± 0.043
0.639CysLeu: 0.639 ± 0.038
0.19CysMet: 0.19 ± 0.019
0.354CysAsn: 0.354 ± 0.028
0.588CysPro: 0.588 ± 0.041
0.253CysGln: 0.253 ± 0.022
0.453CysArg: 0.453 ± 0.03
0.582CysSer: 0.582 ± 0.039
0.428CysThr: 0.428 ± 0.032
0.624CysVal: 0.624 ± 0.039
0.061CysTrp: 0.061 ± 0.011
0.352CysTyr: 0.352 ± 0.027
0.0CysXaa: 0.0 ± 0.0
Asp
2.87AspAla: 2.87 ± 0.084
0.378AspCys: 0.378 ± 0.03
2.045AspAsp: 2.045 ± 0.06
3.819AspGlu: 3.819 ± 0.099
3.169AspPhe: 3.169 ± 0.084
3.1AspGly: 3.1 ± 0.08
0.523AspHis: 0.523 ± 0.032
4.892AspIle: 4.892 ± 0.107
4.066AspLys: 4.066 ± 0.098
4.187AspLeu: 4.187 ± 0.103
1.166AspMet: 1.166 ± 0.045
1.831AspAsn: 1.831 ± 0.071
1.801AspPro: 1.801 ± 0.069
0.519AspGln: 0.519 ± 0.027
2.522AspArg: 2.522 ± 0.07
2.288AspSer: 2.288 ± 0.081
2.29AspThr: 2.29 ± 0.066
4.135AspVal: 4.135 ± 0.099
0.477AspTrp: 0.477 ± 0.032
1.906AspTyr: 1.906 ± 0.06
0.0AspXaa: 0.0 ± 0.0
Glu
5.21GluAla: 5.21 ± 0.115
0.568GluCys: 0.568 ± 0.035
3.662GluAsp: 3.662 ± 0.091
7.92GluGlu: 7.92 ± 0.176
3.31GluPhe: 3.31 ± 0.088
4.751GluGly: 4.751 ± 0.099
1.014GluHis: 1.014 ± 0.041
8.172GluIle: 8.172 ± 0.138
10.072GluLys: 10.072 ± 0.192
7.194GluLeu: 7.194 ± 0.142
1.938GluMet: 1.938 ± 0.061
4.191GluAsn: 4.191 ± 0.109
2.164GluPro: 2.164 ± 0.066
1.558GluGln: 1.558 ± 0.057
4.12GluArg: 4.12 ± 0.116
3.292GluSer: 3.292 ± 0.078
3.947GluThr: 3.947 ± 0.097
5.161GluVal: 5.161 ± 0.115
0.56GluTrp: 0.56 ± 0.035
2.138GluTyr: 2.138 ± 0.065
0.0GluXaa: 0.0 ± 0.0
Phe
3.013PheAla: 3.013 ± 0.086
0.517PheCys: 0.517 ± 0.034
2.566PheAsp: 2.566 ± 0.081
3.536PheGlu: 3.536 ± 0.088
2.795PhePhe: 2.795 ± 0.093
3.621PheGly: 3.621 ± 0.089
0.907PheHis: 0.907 ± 0.046
4.357PheIle: 4.357 ± 0.097
4.351PheLys: 4.351 ± 0.111
5.553PheLeu: 5.553 ± 0.137
1.109PheMet: 1.109 ± 0.048
2.154PheAsn: 2.154 ± 0.063
2.273PhePro: 2.273 ± 0.078
1.047PheGln: 1.047 ± 0.046
2.065PheArg: 2.065 ± 0.074
3.918PheSer: 3.918 ± 0.122
2.417PheThr: 2.417 ± 0.073
3.621PheVal: 3.621 ± 0.095
0.38PheTrp: 0.38 ± 0.031
2.037PheTyr: 2.037 ± 0.067
0.0PheXaa: 0.0 ± 0.0
Gly
4.197GlyAla: 4.197 ± 0.117
0.81GlyCys: 0.81 ± 0.045
3.177GlyAsp: 3.177 ± 0.081
4.668GlyGlu: 4.668 ± 0.114
3.799GlyPhe: 3.799 ± 0.084
4.573GlyGly: 4.573 ± 0.11
1.128GlyHis: 1.128 ± 0.049
6.685GlyIle: 6.685 ± 0.13
7.289GlyLys: 7.289 ± 0.135
5.6GlyLeu: 5.6 ± 0.115
1.716GlyMet: 1.716 ± 0.06
2.902GlyAsn: 2.902 ± 0.089
1.366GlyPro: 1.366 ± 0.047
1.212GlyGln: 1.212 ± 0.045
3.28GlyArg: 3.28 ± 0.084
3.249GlySer: 3.249 ± 0.07
3.688GlyThr: 3.688 ± 0.09
4.886GlyVal: 4.886 ± 0.102
0.62GlyTrp: 0.62 ± 0.038
2.795GlyTyr: 2.795 ± 0.086
0.0GlyXaa: 0.0 ± 0.0
His
0.887HisAla: 0.887 ± 0.039
0.202HisCys: 0.202 ± 0.021
0.62HisAsp: 0.62 ± 0.035
0.829HisGlu: 0.829 ± 0.042
0.909HisPhe: 0.909 ± 0.048
1.2HisGly: 1.2 ± 0.051
0.386HisHis: 0.386 ± 0.028
1.307HisIle: 1.307 ± 0.047
1.008HisLys: 1.008 ± 0.049
1.55HisLeu: 1.55 ± 0.053
0.291HisMet: 0.291 ± 0.024
0.546HisAsn: 0.546 ± 0.039
1.031HisPro: 1.031 ± 0.054
0.368HisGln: 0.368 ± 0.025
0.798HisArg: 0.798 ± 0.037
0.79HisSer: 0.79 ± 0.045
0.77HisThr: 0.77 ± 0.046
0.96HisVal: 0.96 ± 0.043
0.105HisTrp: 0.105 ± 0.015
0.62HisTyr: 0.62 ± 0.035
0.0HisXaa: 0.0 ± 0.0
Ile
6.345IleAla: 6.345 ± 0.124
0.8IleCys: 0.8 ± 0.044
4.759IleAsp: 4.759 ± 0.102
7.289IleGlu: 7.289 ± 0.154
4.1IlePhe: 4.1 ± 0.105
5.41IleGly: 5.41 ± 0.136
1.356IleHis: 1.356 ± 0.046
6.119IleIle: 6.119 ± 0.138
7.932IleLys: 7.932 ± 0.141
8.035IleLeu: 8.035 ± 0.136
1.56IleMet: 1.56 ± 0.062
3.522IleAsn: 3.522 ± 0.076
4.292IlePro: 4.292 ± 0.093
1.473IleGln: 1.473 ± 0.052
3.415IleArg: 3.415 ± 0.081
5.23IleSer: 5.23 ± 0.114
4.371IleThr: 4.371 ± 0.092
6.523IleVal: 6.523 ± 0.106
0.497IleTrp: 0.497 ± 0.033
2.908IleTyr: 2.908 ± 0.083
0.0IleXaa: 0.0 ± 0.0
Lys
5.963LysAla: 5.963 ± 0.113
0.643LysCys: 0.643 ± 0.039
4.585LysAsp: 4.585 ± 0.106
9.591LysGlu: 9.591 ± 0.185
3.72LysPhe: 3.72 ± 0.101
6.224LysGly: 6.224 ± 0.131
1.305LysHis: 1.305 ± 0.051
8.087LysIle: 8.087 ± 0.13
9.443LysLys: 9.443 ± 0.154
8.716LysLeu: 8.716 ± 0.133
1.831LysMet: 1.831 ± 0.056
4.571LysAsn: 4.571 ± 0.127
3.427LysPro: 3.427 ± 0.079
1.879LysGln: 1.879 ± 0.065
4.626LysArg: 4.626 ± 0.102
4.021LysSer: 4.021 ± 0.092
4.573LysThr: 4.573 ± 0.096
6.958LysVal: 6.958 ± 0.117
0.711LysTrp: 0.711 ± 0.042
2.878LysTyr: 2.878 ± 0.085
0.0LysXaa: 0.0 ± 0.0
Leu
5.976LeuAla: 5.976 ± 0.129
0.829LeuCys: 0.829 ± 0.043
4.133LeuAsp: 4.133 ± 0.096
7.085LeuGlu: 7.085 ± 0.137
4.941LeuPhe: 4.941 ± 0.124
5.59LeuGly: 5.59 ± 0.112
1.356LeuHis: 1.356 ± 0.053
7.667LeuIle: 7.667 ± 0.142
11.042LeuLys: 11.042 ± 0.168
9.035LeuLeu: 9.035 ± 0.134
1.976LeuMet: 1.976 ± 0.071
3.999LeuAsn: 3.999 ± 0.102
4.217LeuPro: 4.217 ± 0.108
2.003LeuGln: 2.003 ± 0.073
3.975LeuArg: 3.975 ± 0.089
7.073LeuSer: 7.073 ± 0.133
4.874LeuThr: 4.874 ± 0.101
5.347LeuVal: 5.347 ± 0.116
0.713LeuTrp: 0.713 ± 0.04
3.09LeuTyr: 3.09 ± 0.087
0.0LeuXaa: 0.0 ± 0.0
Met
1.772MetAla: 1.772 ± 0.06
0.2MetCys: 0.2 ± 0.021
1.0MetAsp: 1.0 ± 0.041
1.922MetGlu: 1.922 ± 0.06
1.063MetPhe: 1.063 ± 0.049
1.493MetGly: 1.493 ± 0.061
0.23MetHis: 0.23 ± 0.021
1.481MetIle: 1.481 ± 0.057
2.427MetLys: 2.427 ± 0.065
1.823MetLeu: 1.823 ± 0.049
0.432MetMet: 0.432 ± 0.039
0.883MetAsn: 0.883 ± 0.042
0.873MetPro: 0.873 ± 0.045
0.344MetGln: 0.344 ± 0.027
1.109MetArg: 1.109 ± 0.043
1.061MetSer: 1.061 ± 0.047
0.944MetThr: 0.944 ± 0.045
1.499MetVal: 1.499 ± 0.049
0.184MetTrp: 0.184 ± 0.02
0.491MetTyr: 0.491 ± 0.031
0.0MetXaa: 0.0 ± 0.0
Asn
2.475AsnAla: 2.475 ± 0.067
0.471AsnCys: 0.471 ± 0.033
1.564AsnAsp: 1.564 ± 0.061
2.296AsnGlu: 2.296 ± 0.06
2.443AsnPhe: 2.443 ± 0.08
2.91AsnGly: 2.91 ± 0.084
0.558AsnHis: 0.558 ± 0.03
3.898AsnIle: 3.898 ± 0.098
2.645AsnLys: 2.645 ± 0.079
4.636AsnLeu: 4.636 ± 0.1
0.818AsnMet: 0.818 ± 0.04
1.457AsnAsn: 1.457 ± 0.067
2.374AsnPro: 2.374 ± 0.066
0.764AsnGln: 0.764 ± 0.04
2.261AsnArg: 2.261 ± 0.061
2.126AsnSer: 2.126 ± 0.074
1.768AsnThr: 1.768 ± 0.066
3.251AsnVal: 3.251 ± 0.102
0.43AsnTrp: 0.43 ± 0.034
1.657AsnTyr: 1.657 ± 0.064
0.0AsnXaa: 0.0 ± 0.0
Pro
2.391ProAla: 2.391 ± 0.066
0.356ProCys: 0.356 ± 0.028
2.374ProAsp: 2.374 ± 0.075
4.567ProGlu: 4.567 ± 0.096
2.518ProPhe: 2.518 ± 0.081
2.712ProGly: 2.712 ± 0.075
0.691ProHis: 0.691 ± 0.035
2.843ProIle: 2.843 ± 0.074
2.445ProLys: 2.445 ± 0.066
3.575ProLeu: 3.575 ± 0.097
0.669ProMet: 0.669 ± 0.037
1.182ProAsn: 1.182 ± 0.046
1.544ProPro: 1.544 ± 0.06
0.966ProGln: 0.966 ± 0.05
1.154ProArg: 1.154 ± 0.049
2.346ProSer: 2.346 ± 0.08
1.671ProThr: 1.671 ± 0.065
3.773ProVal: 3.773 ± 0.092
0.299ProTrp: 0.299 ± 0.026
1.621ProTyr: 1.621 ± 0.059
0.0ProXaa: 0.0 ± 0.0
Gln
1.263GlnAla: 1.263 ± 0.063
0.156GlnCys: 0.156 ± 0.017
0.853GlnAsp: 0.853 ± 0.041
1.578GlnGlu: 1.578 ± 0.06
1.014GlnPhe: 1.014 ± 0.044
1.055GlnGly: 1.055 ± 0.05
0.269GlnHis: 0.269 ± 0.021
1.896GlnIle: 1.896 ± 0.065
2.077GlnLys: 2.077 ± 0.062
1.974GlnLeu: 1.974 ± 0.059
0.475GlnMet: 0.475 ± 0.03
0.942GlnAsn: 0.942 ± 0.043
0.736GlnPro: 0.736 ± 0.041
0.576GlnGln: 0.576 ± 0.039
0.907GlnArg: 0.907 ± 0.04
0.839GlnSer: 0.839 ± 0.041
1.097GlnThr: 1.097 ± 0.048
1.36GlnVal: 1.36 ± 0.051
0.176GlnTrp: 0.176 ± 0.018
0.57GlnTyr: 0.57 ± 0.031
0.0GlnXaa: 0.0 ± 0.0
Arg
2.793ArgAla: 2.793 ± 0.087
0.477ArgCys: 0.477 ± 0.033
2.116ArgAsp: 2.116 ± 0.069
4.363ArgGlu: 4.363 ± 0.101
2.558ArgPhe: 2.558 ± 0.078
2.704ArgGly: 2.704 ± 0.08
0.651ArgHis: 0.651 ± 0.036
4.019ArgIle: 4.019 ± 0.085
4.711ArgLys: 4.711 ± 0.1
4.337ArgLeu: 4.337 ± 0.11
0.984ArgMet: 0.984 ± 0.041
1.966ArgAsn: 1.966 ± 0.069
1.417ArgPro: 1.417 ± 0.055
1.016ArgGln: 1.016 ± 0.046
2.284ArgArg: 2.284 ± 0.074
1.782ArgSer: 1.782 ± 0.072
1.954ArgThr: 1.954 ± 0.07
2.95ArgVal: 2.95 ± 0.083
0.469ArgTrp: 0.469 ± 0.027
1.596ArgTyr: 1.596 ± 0.057
0.0ArgXaa: 0.0 ± 0.0
Ser
3.322SerAla: 3.322 ± 0.095
0.663SerCys: 0.663 ± 0.043
2.585SerAsp: 2.585 ± 0.073
3.619SerGlu: 3.619 ± 0.093
3.258SerPhe: 3.258 ± 0.102
4.238SerGly: 4.238 ± 0.099
0.96SerHis: 0.96 ± 0.05
4.599SerIle: 4.599 ± 0.106
4.084SerLys: 4.084 ± 0.087
5.862SerLeu: 5.862 ± 0.124
1.182SerMet: 1.182 ± 0.04
1.934SerAsn: 1.934 ± 0.067
2.32SerPro: 2.32 ± 0.067
1.265SerGln: 1.265 ± 0.054
2.364SerArg: 2.364 ± 0.07
3.547SerSer: 3.547 ± 0.097
2.49SerThr: 2.49 ± 0.078
4.094SerVal: 4.094 ± 0.099
0.39SerTrp: 0.39 ± 0.028
2.176SerTyr: 2.176 ± 0.071
0.0SerXaa: 0.0 ± 0.0
Thr
3.508ThrAla: 3.508 ± 0.092
0.57ThrCys: 0.57 ± 0.041
2.381ThrAsp: 2.381 ± 0.068
3.363ThrGlu: 3.363 ± 0.08
2.72ThrPhe: 2.72 ± 0.085
4.357ThrGly: 4.357 ± 0.092
0.725ThrHis: 0.725 ± 0.035
4.133ThrIle: 4.133 ± 0.106
3.098ThrLys: 3.098 ± 0.082
4.793ThrLeu: 4.793 ± 0.104
0.907ThrMet: 0.907 ± 0.046
1.6ThrAsn: 1.6 ± 0.062
2.372ThrPro: 2.372 ± 0.071
0.831ThrGln: 0.831 ± 0.045
1.718ThrArg: 1.718 ± 0.06
2.447ThrSer: 2.447 ± 0.081
2.554ThrThr: 2.554 ± 0.083
4.286ThrVal: 4.286 ± 0.096
0.319ThrTrp: 0.319 ± 0.028
1.762ThrTyr: 1.762 ± 0.068
0.0ThrXaa: 0.0 ± 0.0
Val
5.337ValAla: 5.337 ± 0.094
0.78ValCys: 0.78 ± 0.047
3.856ValAsp: 3.856 ± 0.097
6.044ValGlu: 6.044 ± 0.126
3.524ValPhe: 3.524 ± 0.096
4.407ValGly: 4.407 ± 0.104
1.029ValHis: 1.029 ± 0.045
6.212ValIle: 6.212 ± 0.119
7.295ValLys: 7.295 ± 0.123
6.388ValLeu: 6.388 ± 0.12
1.566ValMet: 1.566 ± 0.063
3.118ValAsn: 3.118 ± 0.076
2.944ValPro: 2.944 ± 0.076
1.204ValGln: 1.204 ± 0.051
2.999ValArg: 2.999 ± 0.085
4.696ValSer: 4.696 ± 0.113
3.468ValThr: 3.468 ± 0.095
5.674ValVal: 5.674 ± 0.123
0.548ValTrp: 0.548 ± 0.039
2.548ValTyr: 2.548 ± 0.071
0.0ValXaa: 0.0 ± 0.0
Trp
0.416TrpAla: 0.416 ± 0.029
0.085TrpCys: 0.085 ± 0.014
0.465TrpAsp: 0.465 ± 0.032
0.582TrpGlu: 0.582 ± 0.036
0.386TrpPhe: 0.386 ± 0.03
0.531TrpGly: 0.531 ± 0.034
0.17TrpHis: 0.17 ± 0.019
0.715TrpIle: 0.715 ± 0.037
0.784TrpLys: 0.784 ± 0.047
0.734TrpLeu: 0.734 ± 0.04
0.204TrpMet: 0.204 ± 0.02
0.412TrpAsn: 0.412 ± 0.03
0.212TrpPro: 0.212 ± 0.021
0.305TrpGln: 0.305 ± 0.025
0.354TrpArg: 0.354 ± 0.027
0.305TrpSer: 0.305 ± 0.026
0.271TrpThr: 0.271 ± 0.02
0.368TrpVal: 0.368 ± 0.028
0.127TrpTrp: 0.127 ± 0.019
0.273TrpTyr: 0.273 ± 0.025
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.944TyrAla: 1.944 ± 0.061
0.406TyrCys: 0.406 ± 0.027
1.74TyrAsp: 1.74 ± 0.063
2.271TyrGlu: 2.271 ± 0.077
1.916TyrPhe: 1.916 ± 0.069
2.627TyrGly: 2.627 ± 0.084
0.612TyrHis: 0.612 ± 0.038
2.672TyrIle: 2.672 ± 0.081
2.888TyrLys: 2.888 ± 0.09
3.565TyrLeu: 3.565 ± 0.095
0.74TyrMet: 0.74 ± 0.036
1.318TyrAsn: 1.318 ± 0.053
1.809TyrPro: 1.809 ± 0.065
0.921TyrGln: 0.921 ± 0.046
1.918TyrArg: 1.918 ± 0.071
2.033TyrSer: 2.033 ± 0.066
1.689TyrThr: 1.689 ± 0.057
2.304TyrVal: 2.304 ± 0.07
0.275TyrTrp: 0.275 ± 0.024
1.471TyrTyr: 1.471 ± 0.067
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 1617 proteins (494852 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