Amino acid dipepetide frequency for Lactobacillus selangorensis

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
9.852AlaAla: 9.852 ± 0.261
0.432AlaCys: 0.432 ± 0.028
5.837AlaAsp: 5.837 ± 0.117
4.433AlaGlu: 4.433 ± 0.107
3.403AlaPhe: 3.403 ± 0.089
5.787AlaGly: 5.787 ± 0.113
2.209AlaHis: 2.209 ± 0.067
5.694AlaIle: 5.694 ± 0.115
5.185AlaLys: 5.185 ± 0.116
8.015AlaLeu: 8.015 ± 0.129
2.348AlaMet: 2.348 ± 0.061
3.538AlaAsn: 3.538 ± 0.086
2.987AlaPro: 2.987 ± 0.097
4.907AlaGln: 4.907 ± 0.16
2.969AlaArg: 2.969 ± 0.085
4.516AlaSer: 4.516 ± 0.123
5.402AlaThr: 5.402 ± 0.118
6.035AlaVal: 6.035 ± 0.118
0.785AlaTrp: 0.785 ± 0.038
2.897AlaTyr: 2.897 ± 0.074
0.0AlaXaa: 0.0 ± 0.0
Cys
0.365CysAla: 0.365 ± 0.028
0.051CysCys: 0.051 ± 0.01
0.199CysAsp: 0.199 ± 0.017
0.201CysGlu: 0.201 ± 0.02
0.221CysPhe: 0.221 ± 0.018
0.432CysGly: 0.432 ± 0.027
0.129CysHis: 0.129 ± 0.017
0.221CysIle: 0.221 ± 0.018
0.175CysLys: 0.175 ± 0.018
0.471CysLeu: 0.471 ± 0.034
0.098CysMet: 0.098 ± 0.014
0.149CysAsn: 0.149 ± 0.016
0.227CysPro: 0.227 ± 0.026
0.213CysGln: 0.213 ± 0.021
0.185CysArg: 0.185 ± 0.017
0.263CysSer: 0.263 ± 0.021
0.231CysThr: 0.231 ± 0.018
0.306CysVal: 0.306 ± 0.024
0.059CysTrp: 0.059 ± 0.01
0.167CysTyr: 0.167 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
5.056AspAla: 5.056 ± 0.106
0.25AspCys: 0.25 ± 0.023
3.995AspAsp: 3.995 ± 0.101
3.983AspGlu: 3.983 ± 0.093
2.781AspPhe: 2.781 ± 0.075
4.117AspGly: 4.117 ± 0.115
1.661AspHis: 1.661 ± 0.053
3.458AspIle: 3.458 ± 0.09
3.282AspLys: 3.282 ± 0.086
6.006AspLeu: 6.006 ± 0.101
1.522AspMet: 1.522 ± 0.052
2.32AspAsn: 2.32 ± 0.067
2.597AspPro: 2.597 ± 0.074
3.695AspGln: 3.695 ± 0.099
2.391AspArg: 2.391 ± 0.063
3.143AspSer: 3.143 ± 0.093
3.211AspThr: 3.211 ± 0.076
4.171AspVal: 4.171 ± 0.09
0.839AspTrp: 0.839 ± 0.042
2.649AspTyr: 2.649 ± 0.064
0.0AspXaa: 0.0 ± 0.0
Glu
4.24GluAla: 4.24 ± 0.086
0.178GluCys: 0.178 ± 0.016
2.747GluAsp: 2.747 ± 0.082
2.561GluGlu: 2.561 ± 0.08
1.877GluPhe: 1.877 ± 0.052
2.52GluGly: 2.52 ± 0.064
1.244GluHis: 1.244 ± 0.046
3.527GluIle: 3.527 ± 0.081
3.893GluLys: 3.893 ± 0.098
5.062GluLeu: 5.062 ± 0.098
1.777GluMet: 1.777 ± 0.058
2.654GluAsn: 2.654 ± 0.076
1.843GluPro: 1.843 ± 0.051
3.071GluGln: 3.071 ± 0.091
2.508GluArg: 2.508 ± 0.071
2.531GluSer: 2.531 ± 0.101
3.269GluThr: 3.269 ± 0.089
3.337GluVal: 3.337 ± 0.077
0.53GluTrp: 0.53 ± 0.032
1.493GluTyr: 1.493 ± 0.054
0.0GluXaa: 0.0 ± 0.0
Phe
3.538PheAla: 3.538 ± 0.078
0.239PheCys: 0.239 ± 0.019
2.734PheAsp: 2.734 ± 0.074
2.096PheGlu: 2.096 ± 0.062
1.946PhePhe: 1.946 ± 0.067
3.09PheGly: 3.09 ± 0.069
0.907PheHis: 0.907 ± 0.037
2.783PheIle: 2.783 ± 0.086
2.345PheLys: 2.345 ± 0.065
3.97PheLeu: 3.97 ± 0.114
1.148PheMet: 1.148 ± 0.046
1.9PheAsn: 1.9 ± 0.061
1.483PhePro: 1.483 ± 0.05
1.601PheGln: 1.601 ± 0.054
1.303PheArg: 1.303 ± 0.049
2.698PheSer: 2.698 ± 0.075
2.531PheThr: 2.531 ± 0.065
3.01PheVal: 3.01 ± 0.075
0.572PheTrp: 0.572 ± 0.035
1.687PheTyr: 1.687 ± 0.049
0.0PheXaa: 0.0 ± 0.0
Gly
5.087GlyAla: 5.087 ± 0.121
0.378GlyCys: 0.378 ± 0.027
3.627GlyAsp: 3.627 ± 0.08
2.948GlyGlu: 2.948 ± 0.081
2.863GlyPhe: 2.863 ± 0.083
4.315GlyGly: 4.315 ± 0.117
1.566GlyHis: 1.566 ± 0.048
5.239GlyIle: 5.239 ± 0.119
4.256GlyLys: 4.256 ± 0.089
6.436GlyLeu: 6.436 ± 0.123
1.895GlyMet: 1.895 ± 0.06
2.726GlyAsn: 2.726 ± 0.08
1.725GlyPro: 1.725 ± 0.06
3.239GlyGln: 3.239 ± 0.076
2.655GlyArg: 2.655 ± 0.077
3.766GlySer: 3.766 ± 0.108
4.683GlyThr: 4.683 ± 0.09
4.712GlyVal: 4.712 ± 0.105
0.788GlyTrp: 0.788 ± 0.038
2.767GlyTyr: 2.767 ± 0.063
0.0GlyXaa: 0.0 ± 0.0
His
1.748HisAla: 1.748 ± 0.056
0.1HisCys: 0.1 ± 0.012
1.544HisAsp: 1.544 ± 0.05
1.284HisGlu: 1.284 ± 0.048
1.436HisPhe: 1.436 ± 0.05
1.642HisGly: 1.642 ± 0.058
0.891HisHis: 0.891 ± 0.045
1.4HisIle: 1.4 ± 0.05
1.02HisLys: 1.02 ± 0.039
2.678HisLeu: 2.678 ± 0.075
0.549HisMet: 0.549 ± 0.028
0.934HisAsn: 0.934 ± 0.042
1.256HisPro: 1.256 ± 0.046
1.452HisGln: 1.452 ± 0.052
1.009HisArg: 1.009 ± 0.04
1.225HisSer: 1.225 ± 0.043
1.226HisThr: 1.226 ± 0.045
1.694HisVal: 1.694 ± 0.054
0.302HisTrp: 0.302 ± 0.024
1.266HisTyr: 1.266 ± 0.051
0.0HisXaa: 0.0 ± 0.0
Ile
5.908IleAla: 5.908 ± 0.11
0.374IleCys: 0.374 ± 0.027
4.305IleAsp: 4.305 ± 0.085
3.259IleGlu: 3.259 ± 0.079
2.539IlePhe: 2.539 ± 0.075
5.038IleGly: 5.038 ± 0.116
1.465IleHis: 1.465 ± 0.047
4.111IleIle: 4.111 ± 0.104
3.388IleLys: 3.388 ± 0.081
6.264IleLeu: 6.264 ± 0.116
1.586IleMet: 1.586 ± 0.062
2.647IleAsn: 2.647 ± 0.072
2.754IlePro: 2.754 ± 0.067
2.871IleGln: 2.871 ± 0.072
2.58IleArg: 2.58 ± 0.063
3.867IleSer: 3.867 ± 0.086
4.101IleThr: 4.101 ± 0.088
4.819IleVal: 4.819 ± 0.084
0.644IleTrp: 0.644 ± 0.032
2.171IleTyr: 2.171 ± 0.073
0.0IleXaa: 0.0 ± 0.0
Lys
4.73LysAla: 4.73 ± 0.095
0.123LysCys: 0.123 ± 0.015
3.542LysAsp: 3.542 ± 0.089
3.349LysGlu: 3.349 ± 0.081
1.671LysPhe: 1.671 ± 0.06
3.424LysGly: 3.424 ± 0.078
1.306LysHis: 1.306 ± 0.048
3.702LysIle: 3.702 ± 0.067
5.002LysLys: 5.002 ± 0.118
5.384LysLeu: 5.384 ± 0.102
2.276LysMet: 2.276 ± 0.061
3.135LysAsn: 3.135 ± 0.076
2.26LysPro: 2.26 ± 0.063
3.777LysGln: 3.777 ± 0.094
3.063LysArg: 3.063 ± 0.077
2.951LysSer: 2.951 ± 0.082
4.063LysThr: 4.063 ± 0.085
3.749LysVal: 3.749 ± 0.074
0.662LysTrp: 0.662 ± 0.036
2.064LysTyr: 2.064 ± 0.065
0.0LysXaa: 0.0 ± 0.0
Leu
8.686LeuAla: 8.686 ± 0.146
0.446LeuCys: 0.446 ± 0.033
5.836LeuAsp: 5.836 ± 0.109
4.376LeuGlu: 4.376 ± 0.087
4.423LeuPhe: 4.423 ± 0.115
6.627LeuGly: 6.627 ± 0.112
2.22LeuHis: 2.22 ± 0.057
6.277LeuIle: 6.277 ± 0.125
6.366LeuLys: 6.366 ± 0.108
9.824LeuLeu: 9.824 ± 0.207
2.521LeuMet: 2.521 ± 0.068
4.802LeuAsn: 4.802 ± 0.085
4.274LeuPro: 4.274 ± 0.09
4.663LeuGln: 4.663 ± 0.121
3.839LeuArg: 3.839 ± 0.082
5.872LeuSer: 5.872 ± 0.105
6.827LeuThr: 6.827 ± 0.11
6.472LeuVal: 6.472 ± 0.116
0.966LeuTrp: 0.966 ± 0.043
2.95LeuTyr: 2.95 ± 0.077
0.002LeuXaa: 0.002 ± 0.002
Met
2.53MetAla: 2.53 ± 0.067
0.121MetCys: 0.121 ± 0.013
1.527MetAsp: 1.527 ± 0.051
1.132MetGlu: 1.132 ± 0.042
0.855MetPhe: 0.855 ± 0.041
1.795MetGly: 1.795 ± 0.058
0.481MetHis: 0.481 ± 0.031
1.89MetIle: 1.89 ± 0.056
1.964MetLys: 1.964 ± 0.059
2.343MetLeu: 2.343 ± 0.062
0.868MetMet: 0.868 ± 0.038
1.457MetAsn: 1.457 ± 0.052
1.182MetPro: 1.182 ± 0.037
1.253MetGln: 1.253 ± 0.05
1.099MetArg: 1.099 ± 0.041
1.598MetSer: 1.598 ± 0.05
2.211MetThr: 2.211 ± 0.056
1.704MetVal: 1.704 ± 0.052
0.19MetTrp: 0.19 ± 0.019
0.659MetTyr: 0.659 ± 0.033
0.0MetXaa: 0.0 ± 0.0
Asn
3.493AsnAla: 3.493 ± 0.087
0.211AsnCys: 0.211 ± 0.018
2.857AsnAsp: 2.857 ± 0.074
2.534AsnGlu: 2.534 ± 0.074
1.705AsnPhe: 1.705 ± 0.055
3.54AsnGly: 3.54 ± 0.082
1.287AsnHis: 1.287 ± 0.047
2.512AsnIle: 2.512 ± 0.072
2.351AsnLys: 2.351 ± 0.068
4.035AsnLeu: 4.035 ± 0.082
1.179AsnMet: 1.179 ± 0.047
2.103AsnAsn: 2.103 ± 0.09
2.05AsnPro: 2.05 ± 0.058
2.615AsnGln: 2.615 ± 0.074
1.89AsnArg: 1.89 ± 0.064
2.427AsnSer: 2.427 ± 0.084
2.312AsnThr: 2.312 ± 0.069
3.162AsnVal: 3.162 ± 0.08
0.639AsnTrp: 0.639 ± 0.032
1.65AsnTyr: 1.65 ± 0.046
0.0AsnXaa: 0.0 ± 0.0
Pro
3.568ProAla: 3.568 ± 0.072
0.101ProCys: 0.101 ± 0.014
2.969ProAsp: 2.969 ± 0.073
2.739ProGlu: 2.739 ± 0.067
1.733ProPhe: 1.733 ± 0.059
2.103ProGly: 2.103 ± 0.057
0.989ProHis: 0.989 ± 0.041
2.528ProIle: 2.528 ± 0.06
2.194ProLys: 2.194 ± 0.071
3.677ProLeu: 3.677 ± 0.079
0.836ProMet: 0.836 ± 0.035
1.823ProAsn: 1.823 ± 0.062
0.648ProPro: 0.648 ± 0.033
1.977ProGln: 1.977 ± 0.062
1.267ProArg: 1.267 ± 0.046
1.988ProSer: 1.988 ± 0.061
2.608ProThr: 2.608 ± 0.092
2.811ProVal: 2.811 ± 0.068
0.383ProTrp: 0.383 ± 0.026
1.566ProTyr: 1.566 ± 0.056
0.0ProXaa: 0.0 ± 0.0
Gln
4.75GlnAla: 4.75 ± 0.132
0.116GlnCys: 0.116 ± 0.014
2.474GlnAsp: 2.474 ± 0.075
2.554GlnGlu: 2.554 ± 0.073
2.14GlnPhe: 2.14 ± 0.066
2.518GlnGly: 2.518 ± 0.058
1.414GlnHis: 1.414 ± 0.06
3.486GlnIle: 3.486 ± 0.086
3.646GlnLys: 3.646 ± 0.085
5.929GlnLeu: 5.929 ± 0.121
1.565GlnMet: 1.565 ± 0.058
2.376GlnAsn: 2.376 ± 0.071
2.135GlnPro: 2.135 ± 0.065
3.947GlnGln: 3.947 ± 0.173
2.392GlnArg: 2.392 ± 0.074
2.543GlnSer: 2.543 ± 0.087
3.787GlnThr: 3.787 ± 0.122
3.601GlnVal: 3.601 ± 0.081
0.549GlnTrp: 0.549 ± 0.035
1.918GlnTyr: 1.918 ± 0.062
0.0GlnXaa: 0.0 ± 0.0
Arg
2.86ArgAla: 2.86 ± 0.062
0.159ArgCys: 0.159 ± 0.015
2.33ArgAsp: 2.33 ± 0.069
2.064ArgGlu: 2.064 ± 0.057
1.853ArgPhe: 1.853 ± 0.057
2.086ArgGly: 2.086 ± 0.063
1.228ArgHis: 1.228 ± 0.048
2.77ArgIle: 2.77 ± 0.065
2.539ArgLys: 2.539 ± 0.066
4.263ArgLeu: 4.263 ± 0.093
1.074ArgMet: 1.074 ± 0.047
1.799ArgAsn: 1.799 ± 0.06
1.596ArgPro: 1.596 ± 0.05
2.564ArgGln: 2.564 ± 0.067
2.16ArgArg: 2.16 ± 0.071
2.044ArgSer: 2.044 ± 0.057
2.358ArgThr: 2.358 ± 0.063
2.608ArgVal: 2.608 ± 0.078
0.399ArgTrp: 0.399 ± 0.028
1.769ArgTyr: 1.769 ± 0.052
0.0ArgXaa: 0.0 ± 0.0
Ser
4.775SerAla: 4.775 ± 0.154
0.206SerCys: 0.206 ± 0.017
3.615SerAsp: 3.615 ± 0.078
2.982SerGlu: 2.982 ± 0.109
2.48SerPhe: 2.48 ± 0.07
4.127SerGly: 4.127 ± 0.088
1.295SerHis: 1.295 ± 0.042
3.224SerIle: 3.224 ± 0.075
3.148SerLys: 3.148 ± 0.088
5.561SerLeu: 5.561 ± 0.101
1.359SerMet: 1.359 ± 0.052
2.395SerAsn: 2.395 ± 0.084
1.794SerPro: 1.794 ± 0.058
2.76SerGln: 2.76 ± 0.08
2.191SerArg: 2.191 ± 0.064
3.864SerSer: 3.864 ± 0.262
3.455SerThr: 3.455 ± 0.216
3.761SerVal: 3.761 ± 0.092
0.669SerTrp: 0.669 ± 0.038
2.082SerTyr: 2.082 ± 0.065
0.0SerXaa: 0.0 ± 0.0
Thr
6.097ThrAla: 6.097 ± 0.135
0.226ThrCys: 0.226 ± 0.019
4.073ThrAsp: 4.073 ± 0.088
3.146ThrGlu: 3.146 ± 0.079
2.637ThrPhe: 2.637 ± 0.072
4.495ThrGly: 4.495 ± 0.09
1.46ThrHis: 1.46 ± 0.048
4.474ThrIle: 4.474 ± 0.091
3.619ThrLys: 3.619 ± 0.086
6.186ThrLeu: 6.186 ± 0.107
1.475ThrMet: 1.475 ± 0.047
2.798ThrAsn: 2.798 ± 0.073
2.956ThrPro: 2.956 ± 0.072
2.855ThrGln: 2.855 ± 0.081
2.024ThrArg: 2.024 ± 0.064
3.805ThrSer: 3.805 ± 0.235
4.719ThrThr: 4.719 ± 0.124
5.012ThrVal: 5.012 ± 0.124
0.687ThrTrp: 0.687 ± 0.039
2.242ThrTyr: 2.242 ± 0.088
0.0ThrXaa: 0.0 ± 0.0
Val
6.526ValAla: 6.526 ± 0.118
0.399ValCys: 0.399 ± 0.028
4.134ValAsp: 4.134 ± 0.084
3.081ValGlu: 3.081 ± 0.082
2.688ValPhe: 2.688 ± 0.072
4.77ValGly: 4.77 ± 0.106
1.498ValHis: 1.498 ± 0.047
4.701ValIle: 4.701 ± 0.088
3.877ValLys: 3.877 ± 0.087
6.661ValLeu: 6.661 ± 0.124
1.72ValMet: 1.72 ± 0.052
3.027ValAsn: 3.027 ± 0.073
2.899ValPro: 2.899 ± 0.073
3.053ValGln: 3.053 ± 0.088
2.644ValArg: 2.644 ± 0.073
4.214ValSer: 4.214 ± 0.091
5.226ValThr: 5.226 ± 0.112
5.146ValVal: 5.146 ± 0.104
0.646ValTrp: 0.646 ± 0.028
2.283ValTyr: 2.283 ± 0.067
0.0ValXaa: 0.0 ± 0.0
Trp
0.71TrpAla: 0.71 ± 0.04
0.064TrpCys: 0.064 ± 0.01
0.579TrpAsp: 0.579 ± 0.039
0.412TrpGlu: 0.412 ± 0.028
0.492TrpPhe: 0.492 ± 0.035
0.731TrpGly: 0.731 ± 0.036
0.371TrpHis: 0.371 ± 0.028
0.76TrpIle: 0.76 ± 0.037
0.477TrpLys: 0.477 ± 0.032
1.508TrpLeu: 1.508 ± 0.053
0.299TrpMet: 0.299 ± 0.026
0.51TrpAsn: 0.51 ± 0.032
0.358TrpPro: 0.358 ± 0.025
0.783TrpGln: 0.783 ± 0.036
0.487TrpArg: 0.487 ± 0.029
0.512TrpSer: 0.512 ± 0.029
0.559TrpThr: 0.559 ± 0.034
0.744TrpVal: 0.744 ± 0.039
0.167TrpTrp: 0.167 ± 0.019
0.412TrpTyr: 0.412 ± 0.026
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.716TyrAla: 2.716 ± 0.065
0.188TyrCys: 0.188 ± 0.02
2.204TyrAsp: 2.204 ± 0.071
1.73TyrGlu: 1.73 ± 0.057
1.838TyrPhe: 1.838 ± 0.058
2.515TyrGly: 2.515 ± 0.062
1.03TyrHis: 1.03 ± 0.04
1.936TyrIle: 1.936 ± 0.06
1.508TyrLys: 1.508 ± 0.055
3.995TyrLeu: 3.995 ± 0.081
0.759TyrMet: 0.759 ± 0.035
1.46TyrAsn: 1.46 ± 0.047
1.485TyrPro: 1.485 ± 0.048
2.546TyrGln: 2.546 ± 0.076
1.862TyrArg: 1.862 ± 0.056
1.918TyrSer: 1.918 ± 0.057
2.206TyrThr: 2.206 ± 0.079
2.337TyrVal: 2.337 ± 0.057
0.459TyrTrp: 0.459 ± 0.03
1.486TyrTyr: 1.486 ± 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
0.002XaaArg: 0.002 ± 0.002
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 2031 proteins (611575 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