Amino acid dipepetide frequency for Lactobacillus rhamnosus

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
11.038AlaAla: 11.038 ± 0.283
0.397AlaCys: 0.397 ± 0.023
5.935AlaAsp: 5.935 ± 0.12
4.594AlaGlu: 4.594 ± 0.086
3.952AlaPhe: 3.952 ± 0.076
6.938AlaGly: 6.938 ± 0.108
1.892AlaHis: 1.892 ± 0.053
6.868AlaIle: 6.868 ± 0.123
6.305AlaLys: 6.305 ± 0.172
9.635AlaLeu: 9.635 ± 0.114
2.736AlaMet: 2.736 ± 0.063
3.97AlaAsn: 3.97 ± 0.065
3.067AlaPro: 3.067 ± 0.064
4.223AlaGln: 4.223 ± 0.103
3.579AlaArg: 3.579 ± 0.065
5.27AlaSer: 5.27 ± 0.222
6.158AlaThr: 6.158 ± 0.118
6.929AlaVal: 6.929 ± 0.103
0.987AlaTrp: 0.987 ± 0.04
2.908AlaTyr: 2.908 ± 0.058
0.0AlaXaa: 0.0 ± 0.0
Cys
0.288CysAla: 0.288 ± 0.019
0.042CysCys: 0.042 ± 0.008
0.178CysAsp: 0.178 ± 0.015
0.149CysGlu: 0.149 ± 0.014
0.248CysPhe: 0.248 ± 0.019
0.424CysGly: 0.424 ± 0.027
0.141CysHis: 0.141 ± 0.013
0.21CysIle: 0.21 ± 0.016
0.123CysLys: 0.123 ± 0.011
0.433CysLeu: 0.433 ± 0.026
0.097CysMet: 0.097 ± 0.011
0.108CysAsn: 0.108 ± 0.012
0.189CysPro: 0.189 ± 0.019
0.172CysGln: 0.172 ± 0.013
0.167CysArg: 0.167 ± 0.016
0.212CysSer: 0.212 ± 0.018
0.171CysThr: 0.171 ± 0.016
0.255CysVal: 0.255 ± 0.018
0.072CysTrp: 0.072 ± 0.01
0.154CysTyr: 0.154 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
5.365AspAla: 5.365 ± 0.134
0.147AspCys: 0.147 ± 0.014
3.538AspAsp: 3.538 ± 0.097
3.294AspGlu: 3.294 ± 0.083
2.823AspPhe: 2.823 ± 0.063
3.72AspGly: 3.72 ± 0.094
1.693AspHis: 1.693 ± 0.047
3.174AspIle: 3.174 ± 0.072
2.943AspLys: 2.943 ± 0.08
5.809AspLeu: 5.809 ± 0.09
1.492AspMet: 1.492 ± 0.042
1.987AspAsn: 1.987 ± 0.06
2.951AspPro: 2.951 ± 0.063
3.237AspGln: 3.237 ± 0.072
2.691AspArg: 2.691 ± 0.059
2.508AspSer: 2.508 ± 0.068
3.079AspThr: 3.079 ± 0.08
3.985AspVal: 3.985 ± 0.071
0.755AspTrp: 0.755 ± 0.031
2.34AspTyr: 2.34 ± 0.054
0.0AspXaa: 0.0 ± 0.0
Glu
5.048GluAla: 5.048 ± 0.12
0.134GluCys: 0.134 ± 0.013
2.402GluAsp: 2.402 ± 0.058
2.315GluGlu: 2.315 ± 0.07
1.648GluPhe: 1.648 ± 0.048
2.516GluGly: 2.516 ± 0.065
1.2GluHis: 1.2 ± 0.035
3.04GluIle: 3.04 ± 0.071
3.253GluLys: 3.253 ± 0.064
4.855GluLeu: 4.855 ± 0.088
1.427GluMet: 1.427 ± 0.046
2.156GluAsn: 2.156 ± 0.055
1.849GluPro: 1.849 ± 0.049
2.436GluGln: 2.436 ± 0.054
2.418GluArg: 2.418 ± 0.067
2.233GluSer: 2.233 ± 0.065
3.076GluThr: 3.076 ± 0.066
3.12GluVal: 3.12 ± 0.07
0.432GluTrp: 0.432 ± 0.027
1.263GluTyr: 1.263 ± 0.043
0.0GluXaa: 0.0 ± 0.0
Phe
4.017PheAla: 4.017 ± 0.077
0.223PheCys: 0.223 ± 0.016
2.806PheAsp: 2.806 ± 0.069
1.991PheGlu: 1.991 ± 0.054
2.078PhePhe: 2.078 ± 0.056
3.477PheGly: 3.477 ± 0.076
0.85PheHis: 0.85 ± 0.033
2.785PheIle: 2.785 ± 0.075
2.285PheLys: 2.285 ± 0.064
4.122PheLeu: 4.122 ± 0.091
1.151PheMet: 1.151 ± 0.044
1.946PheAsn: 1.946 ± 0.048
1.59PhePro: 1.59 ± 0.042
1.441PheGln: 1.441 ± 0.04
1.562PheArg: 1.562 ± 0.051
2.863PheSer: 2.863 ± 0.067
2.606PheThr: 2.606 ± 0.057
3.063PheVal: 3.063 ± 0.075
0.56PheTrp: 0.56 ± 0.031
1.456PheTyr: 1.456 ± 0.043
0.0PheXaa: 0.0 ± 0.0
Gly
5.541GlyAla: 5.541 ± 0.101
0.313GlyCys: 0.313 ± 0.02
3.719GlyAsp: 3.719 ± 0.075
3.147GlyGlu: 3.147 ± 0.064
3.358GlyPhe: 3.358 ± 0.073
4.508GlyGly: 4.508 ± 0.084
1.598GlyHis: 1.598 ± 0.051
5.305GlyIle: 5.305 ± 0.093
4.363GlyLys: 4.363 ± 0.093
7.292GlyLeu: 7.292 ± 0.12
2.037GlyMet: 2.037 ± 0.053
2.499GlyAsn: 2.499 ± 0.06
1.865GlyPro: 1.865 ± 0.058
3.105GlyGln: 3.105 ± 0.067
2.869GlyArg: 2.869 ± 0.061
3.997GlySer: 3.997 ± 0.07
4.601GlyThr: 4.601 ± 0.1
5.177GlyVal: 5.177 ± 0.095
0.896GlyTrp: 0.896 ± 0.036
2.646GlyTyr: 2.646 ± 0.05
0.0GlyXaa: 0.0 ± 0.0
His
1.976HisAla: 1.976 ± 0.045
0.09HisCys: 0.09 ± 0.01
1.499HisAsp: 1.499 ± 0.044
1.25HisGlu: 1.25 ± 0.044
1.237HisPhe: 1.237 ± 0.04
1.749HisGly: 1.749 ± 0.048
0.897HisHis: 0.897 ± 0.037
1.225HisIle: 1.225 ± 0.041
0.846HisLys: 0.846 ± 0.035
2.47HisLeu: 2.47 ± 0.064
0.549HisMet: 0.549 ± 0.024
0.805HisAsn: 0.805 ± 0.033
1.174HisPro: 1.174 ± 0.039
1.369HisGln: 1.369 ± 0.043
1.159HisArg: 1.159 ± 0.046
1.032HisSer: 1.032 ± 0.042
1.106HisThr: 1.106 ± 0.039
1.622HisVal: 1.622 ± 0.05
0.295HisTrp: 0.295 ± 0.018
1.024HisTyr: 1.024 ± 0.039
0.0HisXaa: 0.0 ± 0.0
Ile
6.503IleAla: 6.503 ± 0.105
0.354IleCys: 0.354 ± 0.019
4.09IleAsp: 4.09 ± 0.125
3.054IleGlu: 3.054 ± 0.054
2.738IlePhe: 2.738 ± 0.073
5.365IleGly: 5.365 ± 0.108
1.356IleHis: 1.356 ± 0.039
3.964IleIle: 3.964 ± 0.082
3.5IleLys: 3.5 ± 0.077
6.071IleLeu: 6.071 ± 0.129
1.591IleMet: 1.591 ± 0.05
2.795IleAsn: 2.795 ± 0.061
2.798IlePro: 2.798 ± 0.062
2.586IleGln: 2.586 ± 0.061
2.789IleArg: 2.789 ± 0.068
3.807IleSer: 3.807 ± 0.08
4.088IleThr: 4.088 ± 0.094
4.837IleVal: 4.837 ± 0.082
0.648IleTrp: 0.648 ± 0.03
1.873IleTyr: 1.873 ± 0.053
0.0IleXaa: 0.0 ± 0.0
Lys
5.479LysAla: 5.479 ± 0.151
0.121LysCys: 0.121 ± 0.013
3.029LysAsp: 3.029 ± 0.068
2.796LysGlu: 2.796 ± 0.074
1.623LysPhe: 1.623 ± 0.054
2.937LysGly: 2.937 ± 0.067
1.272LysHis: 1.272 ± 0.037
3.506LysIle: 3.506 ± 0.064
3.739LysLys: 3.739 ± 0.092
5.332LysLeu: 5.332 ± 0.095
1.8LysMet: 1.8 ± 0.05
2.454LysAsn: 2.454 ± 0.061
2.457LysPro: 2.457 ± 0.059
3.436LysGln: 3.436 ± 0.086
3.119LysArg: 3.119 ± 0.064
2.941LysSer: 2.941 ± 0.065
4.173LysThr: 4.173 ± 0.085
3.674LysVal: 3.674 ± 0.082
0.552LysTrp: 0.552 ± 0.028
1.721LysTyr: 1.721 ± 0.057
0.0LysXaa: 0.0 ± 0.0
Leu
10.731LeuAla: 10.731 ± 0.138
0.425LeuCys: 0.425 ± 0.027
5.529LeuAsp: 5.529 ± 0.087
4.011LeuGlu: 4.011 ± 0.075
4.288LeuPhe: 4.288 ± 0.099
7.105LeuGly: 7.105 ± 0.114
1.999LeuHis: 1.999 ± 0.057
7.04LeuIle: 7.04 ± 0.143
5.981LeuLys: 5.981 ± 0.09
10.472LeuLeu: 10.472 ± 0.207
2.787LeuMet: 2.787 ± 0.071
4.561LeuAsn: 4.561 ± 0.083
4.908LeuPro: 4.908 ± 0.083
4.043LeuGln: 4.043 ± 0.087
4.105LeuArg: 4.105 ± 0.084
6.036LeuSer: 6.036 ± 0.105
7.598LeuThr: 7.598 ± 0.099
7.247LeuVal: 7.247 ± 0.119
0.988LeuTrp: 0.988 ± 0.039
2.796LeuTyr: 2.796 ± 0.06
0.0LeuXaa: 0.0 ± 0.0
Met
2.937MetAla: 2.937 ± 0.066
0.091MetCys: 0.091 ± 0.011
1.279MetAsp: 1.279 ± 0.04
0.89MetGlu: 0.89 ± 0.034
0.928MetPhe: 0.928 ± 0.036
1.728MetGly: 1.728 ± 0.046
0.55MetHis: 0.55 ± 0.026
1.953MetIle: 1.953 ± 0.052
1.662MetLys: 1.662 ± 0.044
2.697MetLeu: 2.697 ± 0.064
0.839MetMet: 0.839 ± 0.037
1.204MetAsn: 1.204 ± 0.041
1.2MetPro: 1.2 ± 0.04
1.222MetGln: 1.222 ± 0.038
1.17MetArg: 1.17 ± 0.038
1.512MetSer: 1.512 ± 0.047
2.198MetThr: 2.198 ± 0.06
1.931MetVal: 1.931 ± 0.048
0.187MetTrp: 0.187 ± 0.014
0.624MetTyr: 0.624 ± 0.027
0.0MetXaa: 0.0 ± 0.0
Asn
3.706AsnAla: 3.706 ± 0.076
0.176AsnCys: 0.176 ± 0.016
2.418AsnAsp: 2.418 ± 0.072
2.065AsnGlu: 2.065 ± 0.06
1.597AsnPhe: 1.597 ± 0.047
3.276AsnGly: 3.276 ± 0.074
1.078AsnHis: 1.078 ± 0.038
2.323AsnIle: 2.323 ± 0.053
1.949AsnLys: 1.949 ± 0.058
3.985AsnLeu: 3.985 ± 0.071
1.081AsnMet: 1.081 ± 0.041
1.596AsnAsn: 1.596 ± 0.05
2.001AsnPro: 2.001 ± 0.054
2.273AsnGln: 2.273 ± 0.048
1.976AsnArg: 1.976 ± 0.047
2.016AsnSer: 2.016 ± 0.06
2.221AsnThr: 2.221 ± 0.055
2.879AsnVal: 2.879 ± 0.061
0.551AsnTrp: 0.551 ± 0.029
1.443AsnTyr: 1.443 ± 0.042
0.0AsnXaa: 0.0 ± 0.0
Pro
4.023ProAla: 4.023 ± 0.08
0.121ProCys: 0.121 ± 0.014
2.941ProAsp: 2.941 ± 0.065
2.853ProGlu: 2.853 ± 0.056
1.829ProPhe: 1.829 ± 0.053
2.452ProGly: 2.452 ± 0.058
0.905ProHis: 0.905 ± 0.034
2.603ProIle: 2.603 ± 0.061
2.344ProLys: 2.344 ± 0.056
3.971ProLeu: 3.971 ± 0.076
0.893ProMet: 0.893 ± 0.031
1.755ProAsn: 1.755 ± 0.044
0.921ProPro: 0.921 ± 0.038
1.906ProGln: 1.906 ± 0.054
1.436ProArg: 1.436 ± 0.037
2.219ProSer: 2.219 ± 0.054
2.739ProThr: 2.739 ± 0.069
3.287ProVal: 3.287 ± 0.068
0.43ProTrp: 0.43 ± 0.022
1.41ProTyr: 1.41 ± 0.049
0.0ProXaa: 0.0 ± 0.0
Gln
5.357GlnAla: 5.357 ± 0.139
0.1GlnCys: 0.1 ± 0.01
2.12GlnAsp: 2.12 ± 0.053
1.989GlnGlu: 1.989 ± 0.049
1.804GlnPhe: 1.804 ± 0.046
2.34GlnGly: 2.34 ± 0.062
1.267GlnHis: 1.267 ± 0.043
2.851GlnIle: 2.851 ± 0.057
2.684GlnLys: 2.684 ± 0.065
5.565GlnLeu: 5.565 ± 0.106
1.199GlnMet: 1.199 ± 0.041
1.747GlnAsn: 1.747 ± 0.047
2.168GlnPro: 2.168 ± 0.055
2.947GlnGln: 2.947 ± 0.067
2.281GlnArg: 2.281 ± 0.059
2.47GlnSer: 2.47 ± 0.051
3.292GlnThr: 3.292 ± 0.084
3.576GlnVal: 3.576 ± 0.07
0.501GlnTrp: 0.501 ± 0.027
1.579GlnTyr: 1.579 ± 0.045
0.0GlnXaa: 0.0 ± 0.0
Arg
3.284ArgAla: 3.284 ± 0.067
0.149ArgCys: 0.149 ± 0.012
2.554ArgAsp: 2.554 ± 0.056
2.256ArgGlu: 2.256 ± 0.062
2.196ArgPhe: 2.196 ± 0.057
2.562ArgGly: 2.562 ± 0.064
1.356ArgHis: 1.356 ± 0.043
2.906ArgIle: 2.906 ± 0.056
2.248ArgLys: 2.248 ± 0.056
5.028ArgLeu: 5.028 ± 0.095
1.266ArgMet: 1.266 ± 0.036
1.679ArgAsn: 1.679 ± 0.054
1.664ArgPro: 1.664 ± 0.049
2.701ArgGln: 2.701 ± 0.063
2.58ArgArg: 2.58 ± 0.066
2.071ArgSer: 2.071 ± 0.057
2.285ArgThr: 2.285 ± 0.055
2.802ArgVal: 2.802 ± 0.062
0.499ArgTrp: 0.499 ± 0.024
1.872ArgTyr: 1.872 ± 0.047
0.0ArgXaa: 0.0 ± 0.0
Ser
4.863SerAla: 4.863 ± 0.179
0.18SerCys: 0.18 ± 0.015
3.185SerAsp: 3.185 ± 0.075
2.688SerGlu: 2.688 ± 0.064
2.568SerPhe: 2.568 ± 0.065
4.782SerGly: 4.782 ± 0.095
1.267SerHis: 1.267 ± 0.04
3.167SerIle: 3.167 ± 0.077
2.731SerLys: 2.731 ± 0.063
5.698SerLeu: 5.698 ± 0.099
1.359SerMet: 1.359 ± 0.045
2.105SerAsn: 2.105 ± 0.065
2.102SerPro: 2.102 ± 0.054
2.582SerGln: 2.582 ± 0.064
2.523SerArg: 2.523 ± 0.061
3.498SerSer: 3.498 ± 0.142
3.193SerThr: 3.193 ± 0.082
3.814SerVal: 3.814 ± 0.073
0.763SerTrp: 0.763 ± 0.031
1.749SerTyr: 1.749 ± 0.046
0.0SerXaa: 0.0 ± 0.0
Thr
6.438ThrAla: 6.438 ± 0.122
0.21ThrCys: 0.21 ± 0.019
3.771ThrAsp: 3.771 ± 0.088
2.642ThrGlu: 2.642 ± 0.071
2.748ThrPhe: 2.748 ± 0.058
4.817ThrGly: 4.817 ± 0.085
1.375ThrHis: 1.375 ± 0.044
4.585ThrIle: 4.585 ± 0.098
3.483ThrLys: 3.483 ± 0.073
6.656ThrLeu: 6.656 ± 0.109
1.523ThrMet: 1.523 ± 0.046
2.628ThrAsn: 2.628 ± 0.068
3.111ThrPro: 3.111 ± 0.069
2.645ThrGln: 2.645 ± 0.065
2.387ThrArg: 2.387 ± 0.063
3.619ThrSer: 3.619 ± 0.075
4.395ThrThr: 4.395 ± 0.1
5.223ThrVal: 5.223 ± 0.096
0.709ThrTrp: 0.709 ± 0.027
2.126ThrTyr: 2.126 ± 0.049
0.0ThrXaa: 0.0 ± 0.0
Val
7.328ValAla: 7.328 ± 0.103
0.339ValCys: 0.339 ± 0.018
4.076ValAsp: 4.076 ± 0.083
2.951ValGlu: 2.951 ± 0.067
2.829ValPhe: 2.829 ± 0.062
5.189ValGly: 5.189 ± 0.095
1.355ValHis: 1.355 ± 0.04
4.945ValIle: 4.945 ± 0.101
4.136ValLys: 4.136 ± 0.081
7.144ValLeu: 7.144 ± 0.113
1.972ValMet: 1.972 ± 0.055
3.051ValAsn: 3.051 ± 0.069
3.099ValPro: 3.099 ± 0.07
2.514ValGln: 2.514 ± 0.055
2.687ValArg: 2.687 ± 0.067
4.331ValSer: 4.331 ± 0.075
5.521ValThr: 5.521 ± 0.096
5.431ValVal: 5.431 ± 0.089
0.691ValTrp: 0.691 ± 0.029
2.096ValTyr: 2.096 ± 0.048
0.0ValXaa: 0.0 ± 0.0
Trp
0.756TrpAla: 0.756 ± 0.029
0.061TrpCys: 0.061 ± 0.009
0.475TrpAsp: 0.475 ± 0.024
0.381TrpGlu: 0.381 ± 0.022
0.629TrpPhe: 0.629 ± 0.029
0.631TrpGly: 0.631 ± 0.028
0.342TrpHis: 0.342 ± 0.022
0.682TrpIle: 0.682 ± 0.031
0.38TrpLys: 0.38 ± 0.021
1.773TrpLeu: 1.773 ± 0.054
0.296TrpMet: 0.296 ± 0.021
0.415TrpAsn: 0.415 ± 0.024
0.478TrpPro: 0.478 ± 0.026
0.82TrpGln: 0.82 ± 0.029
0.601TrpArg: 0.601 ± 0.028
0.598TrpSer: 0.598 ± 0.029
0.611TrpThr: 0.611 ± 0.032
0.648TrpVal: 0.648 ± 0.032
0.208TrpTrp: 0.208 ± 0.017
0.397TrpTyr: 0.397 ± 0.024
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.703TyrAla: 2.703 ± 0.059
0.161TyrCys: 0.161 ± 0.015
1.986TyrAsp: 1.986 ± 0.05
1.504TyrGlu: 1.504 ± 0.047
1.751TyrPhe: 1.751 ± 0.044
2.321TyrGly: 2.321 ± 0.059
0.978TyrHis: 0.978 ± 0.035
1.675TyrIle: 1.675 ± 0.045
1.206TyrLys: 1.206 ± 0.036
3.641TyrLeu: 3.641 ± 0.073
0.706TyrMet: 0.706 ± 0.028
1.151TyrAsn: 1.151 ± 0.04
1.448TyrPro: 1.448 ± 0.041
2.179TyrGln: 2.179 ± 0.063
1.857TyrArg: 1.857 ± 0.058
1.585TyrSer: 1.585 ± 0.043
1.982TyrThr: 1.982 ± 0.066
2.185TyrVal: 2.185 ± 0.048
0.46TyrTrp: 0.46 ± 0.025
1.234TyrTyr: 1.234 ± 0.039
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 2657 proteins (823911 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