Amino acid dipepetide frequency for Cardiobacteriales bacterium ML27

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
9.318AlaAla: 9.318 ± 0.157
1.061AlaCys: 1.061 ± 0.044
5.504AlaAsp: 5.504 ± 0.105
5.275AlaGlu: 5.275 ± 0.135
3.802AlaPhe: 3.802 ± 0.088
6.602AlaGly: 6.602 ± 0.117
2.071AlaHis: 2.071 ± 0.054
7.32AlaIle: 7.32 ± 0.13
5.112AlaLys: 5.112 ± 0.105
10.913AlaLeu: 10.913 ± 0.169
2.676AlaMet: 2.676 ± 0.065
4.252AlaAsn: 4.252 ± 0.089
3.439AlaPro: 3.439 ± 0.09
4.649AlaGln: 4.649 ± 0.114
3.942AlaArg: 3.942 ± 0.093
5.823AlaSer: 5.823 ± 0.114
5.95AlaThr: 5.95 ± 0.102
6.586AlaVal: 6.586 ± 0.112
0.997AlaTrp: 0.997 ± 0.041
2.918AlaTyr: 2.918 ± 0.07
0.002AlaXaa: 0.002 ± 0.001
Cys
0.916CysAla: 0.916 ± 0.039
0.135CysCys: 0.135 ± 0.012
0.625CysAsp: 0.625 ± 0.034
0.573CysGlu: 0.573 ± 0.034
0.449CysPhe: 0.449 ± 0.029
0.822CysGly: 0.822 ± 0.038
0.315CysHis: 0.315 ± 0.026
0.612CysIle: 0.612 ± 0.033
0.367CysLys: 0.367 ± 0.025
1.044CysLeu: 1.044 ± 0.041
0.17CysMet: 0.17 ± 0.018
0.297CysAsn: 0.297 ± 0.022
0.48CysPro: 0.48 ± 0.029
0.638CysGln: 0.638 ± 0.034
0.503CysArg: 0.503 ± 0.029
0.468CysSer: 0.468 ± 0.034
0.434CysThr: 0.434 ± 0.028
0.689CysVal: 0.689 ± 0.033
0.134CysTrp: 0.134 ± 0.017
0.382CysTyr: 0.382 ± 0.026
0.0CysXaa: 0.0 ± 0.0
Asp
5.769AspAla: 5.769 ± 0.1
0.676AspCys: 0.676 ± 0.039
3.194AspAsp: 3.194 ± 0.086
3.813AspGlu: 3.813 ± 0.092
2.649AspPhe: 2.649 ± 0.067
3.742AspGly: 3.742 ± 0.097
0.864AspHis: 0.864 ± 0.036
4.205AspIle: 4.205 ± 0.087
3.401AspLys: 3.401 ± 0.085
5.026AspLeu: 5.026 ± 0.109
1.297AspMet: 1.297 ± 0.043
2.985AspAsn: 2.985 ± 0.091
1.799AspPro: 1.799 ± 0.065
1.756AspGln: 1.756 ± 0.053
2.04AspArg: 2.04 ± 0.061
3.352AspSer: 3.352 ± 0.096
3.49AspThr: 3.49 ± 0.097
3.522AspVal: 3.522 ± 0.075
0.838AspTrp: 0.838 ± 0.04
2.273AspTyr: 2.273 ± 0.065
0.0AspXaa: 0.0 ± 0.0
Glu
5.156GluAla: 5.156 ± 0.128
0.377GluCys: 0.377 ± 0.027
2.024GluAsp: 2.024 ± 0.067
2.224GluGlu: 2.224 ± 0.083
1.804GluPhe: 1.804 ± 0.065
2.674GluGly: 2.674 ± 0.076
1.095GluHis: 1.095 ± 0.041
4.139GluIle: 4.139 ± 0.093
3.912GluLys: 3.912 ± 0.085
4.906GluLeu: 4.906 ± 0.095
1.499GluMet: 1.499 ± 0.049
2.747GluAsn: 2.747 ± 0.08
1.645GluPro: 1.645 ± 0.056
2.708GluGln: 2.708 ± 0.069
2.738GluArg: 2.738 ± 0.073
3.306GluSer: 3.306 ± 0.074
3.624GluThr: 3.624 ± 0.078
3.156GluVal: 3.156 ± 0.078
0.522GluTrp: 0.522 ± 0.028
1.446GluTyr: 1.446 ± 0.052
0.0GluXaa: 0.0 ± 0.0
Phe
4.068PheAla: 4.068 ± 0.084
0.504PheCys: 0.504 ± 0.032
2.875PheAsp: 2.875 ± 0.077
2.111PheGlu: 2.111 ± 0.058
1.882PhePhe: 1.882 ± 0.058
2.992PheGly: 2.992 ± 0.079
0.741PheHis: 0.741 ± 0.035
2.784PheIle: 2.784 ± 0.083
1.564PheLys: 1.564 ± 0.053
3.517PheLeu: 3.517 ± 0.078
0.912PheMet: 0.912 ± 0.042
1.847PheAsn: 1.847 ± 0.063
1.368PhePro: 1.368 ± 0.051
1.214PheGln: 1.214 ± 0.041
1.515PheArg: 1.515 ± 0.053
3.024PheSer: 3.024 ± 0.065
2.226PheThr: 2.226 ± 0.057
2.956PheVal: 2.956 ± 0.081
0.519PheTrp: 0.519 ± 0.03
1.456PheTyr: 1.456 ± 0.049
0.0PheXaa: 0.0 ± 0.0
Gly
5.742GlyAla: 5.742 ± 0.104
0.842GlyCys: 0.842 ± 0.033
3.847GlyAsp: 3.847 ± 0.099
3.906GlyGlu: 3.906 ± 0.075
3.171GlyPhe: 3.171 ± 0.074
4.738GlyGly: 4.738 ± 0.1
1.538GlyHis: 1.538 ± 0.061
4.919GlyIle: 4.919 ± 0.096
3.696GlyLys: 3.696 ± 0.083
6.807GlyLeu: 6.807 ± 0.112
1.85GlyMet: 1.85 ± 0.064
2.698GlyAsn: 2.698 ± 0.073
1.465GlyPro: 1.465 ± 0.048
3.25GlyGln: 3.25 ± 0.076
2.964GlyArg: 2.964 ± 0.067
3.517GlySer: 3.517 ± 0.085
3.328GlyThr: 3.328 ± 0.081
5.215GlyVal: 5.215 ± 0.114
0.784GlyTrp: 0.784 ± 0.04
2.49GlyTyr: 2.49 ± 0.066
0.0GlyXaa: 0.0 ± 0.0
His
2.108HisAla: 2.108 ± 0.067
0.332HisCys: 0.332 ± 0.024
1.281HisAsp: 1.281 ± 0.053
1.26HisGlu: 1.26 ± 0.049
1.015HisPhe: 1.015 ± 0.044
1.596HisGly: 1.596 ± 0.06
0.805HisHis: 0.805 ± 0.041
1.565HisIle: 1.565 ± 0.054
0.889HisLys: 0.889 ± 0.041
2.277HisLeu: 2.277 ± 0.066
0.415HisMet: 0.415 ± 0.022
0.803HisAsn: 0.803 ± 0.041
1.368HisPro: 1.368 ± 0.051
1.235HisGln: 1.235 ± 0.049
1.169HisArg: 1.169 ± 0.046
1.239HisSer: 1.239 ± 0.05
1.18HisThr: 1.18 ± 0.051
1.347HisVal: 1.347 ± 0.045
0.32HisTrp: 0.32 ± 0.021
0.942HisTyr: 0.942 ± 0.032
0.0HisXaa: 0.0 ± 0.0
Ile
7.66IleAla: 7.66 ± 0.115
0.682IleCys: 0.682 ± 0.035
5.299IleAsp: 5.299 ± 0.102
4.462IleGlu: 4.462 ± 0.091
2.324IlePhe: 2.324 ± 0.066
5.073IleGly: 5.073 ± 0.123
1.476IleHis: 1.476 ± 0.049
4.668IleIle: 4.668 ± 0.084
3.369IleLys: 3.369 ± 0.076
5.546IleLeu: 5.546 ± 0.117
1.36IleMet: 1.36 ± 0.054
3.506IleAsn: 3.506 ± 0.083
3.018IlePro: 3.018 ± 0.072
2.635IleGln: 2.635 ± 0.066
3.239IleArg: 3.239 ± 0.067
4.163IleSer: 4.163 ± 0.084
4.338IleThr: 4.338 ± 0.092
4.33IleVal: 4.33 ± 0.097
0.652IleTrp: 0.652 ± 0.036
1.982IleTyr: 1.982 ± 0.063
0.0IleXaa: 0.0 ± 0.0
Lys
4.844LysAla: 4.844 ± 0.096
0.294LysCys: 0.294 ± 0.028
2.24LysAsp: 2.24 ± 0.067
2.071LysGlu: 2.071 ± 0.066
1.241LysPhe: 1.241 ± 0.046
2.73LysGly: 2.73 ± 0.071
1.258LysHis: 1.258 ± 0.049
3.433LysIle: 3.433 ± 0.076
3.231LysLys: 3.231 ± 0.094
4.176LysLeu: 4.176 ± 0.093
1.203LysMet: 1.203 ± 0.049
2.487LysAsn: 2.487 ± 0.065
2.286LysPro: 2.286 ± 0.066
2.811LysGln: 2.811 ± 0.08
2.69LysArg: 2.69 ± 0.077
3.304LysSer: 3.304 ± 0.083
4.019LysThr: 4.019 ± 0.093
2.49LysVal: 2.49 ± 0.076
0.422LysTrp: 0.422 ± 0.026
1.289LysTyr: 1.289 ± 0.047
0.0LysXaa: 0.0 ± 0.0
Leu
10.575LeuAla: 10.575 ± 0.142
1.08LeuCys: 1.08 ± 0.041
5.436LeuAsp: 5.436 ± 0.102
3.906LeuGlu: 3.906 ± 0.096
4.299LeuPhe: 4.299 ± 0.095
6.892LeuGly: 6.892 ± 0.113
2.097LeuHis: 2.097 ± 0.067
6.884LeuIle: 6.884 ± 0.133
4.292LeuLys: 4.292 ± 0.096
10.576LeuLeu: 10.576 ± 0.186
2.453LeuMet: 2.453 ± 0.066
3.957LeuAsn: 3.957 ± 0.072
4.981LeuPro: 4.981 ± 0.093
3.926LeuGln: 3.926 ± 0.091
4.346LeuArg: 4.346 ± 0.095
7.73LeuSer: 7.73 ± 0.12
6.677LeuThr: 6.677 ± 0.124
6.527LeuVal: 6.527 ± 0.117
1.021LeuTrp: 1.021 ± 0.044
2.522LeuTyr: 2.522 ± 0.065
0.0LeuXaa: 0.0 ± 0.0
Met
2.479MetAla: 2.479 ± 0.081
0.15MetCys: 0.15 ± 0.015
1.104MetAsp: 1.104 ± 0.063
0.815MetGlu: 0.815 ± 0.038
0.644MetPhe: 0.644 ± 0.048
1.629MetGly: 1.629 ± 0.052
0.533MetHis: 0.533 ± 0.032
1.529MetIle: 1.529 ± 0.052
1.319MetLys: 1.319 ± 0.045
2.514MetLeu: 2.514 ± 0.079
0.716MetMet: 0.716 ± 0.038
1.091MetAsn: 1.091 ± 0.043
1.322MetPro: 1.322 ± 0.054
1.522MetGln: 1.522 ± 0.049
1.341MetArg: 1.341 ± 0.049
1.445MetSer: 1.445 ± 0.052
1.801MetThr: 1.801 ± 0.051
1.499MetVal: 1.499 ± 0.046
0.189MetTrp: 0.189 ± 0.019
0.391MetTyr: 0.391 ± 0.024
0.0MetXaa: 0.0 ± 0.0
Asn
4.59AsnAla: 4.59 ± 0.106
0.375AsnCys: 0.375 ± 0.026
2.434AsnAsp: 2.434 ± 0.068
2.377AsnGlu: 2.377 ± 0.062
1.379AsnPhe: 1.379 ± 0.051
2.84AsnGly: 2.84 ± 0.077
1.12AsnHis: 1.12 ± 0.052
2.706AsnIle: 2.706 ± 0.064
2.089AsnLys: 2.089 ± 0.061
3.649AsnLeu: 3.649 ± 0.08
0.953AsnMet: 0.953 ± 0.041
2.205AsnAsn: 2.205 ± 0.083
2.463AsnPro: 2.463 ± 0.073
2.846AsnGln: 2.846 ± 0.08
2.286AsnArg: 2.286 ± 0.063
2.237AsnSer: 2.237 ± 0.068
2.953AsnThr: 2.953 ± 0.08
2.343AsnVal: 2.343 ± 0.062
0.577AsnTrp: 0.577 ± 0.031
1.354AsnTyr: 1.354 ± 0.055
0.0AsnXaa: 0.0 ± 0.0
Pro
3.715ProAla: 3.715 ± 0.086
0.334ProCys: 0.334 ± 0.026
2.673ProAsp: 2.673 ± 0.059
2.701ProGlu: 2.701 ± 0.068
1.833ProPhe: 1.833 ± 0.051
2.13ProGly: 2.13 ± 0.063
0.997ProHis: 0.997 ± 0.037
3.072ProIle: 3.072 ± 0.083
1.989ProLys: 1.989 ± 0.056
3.974ProLeu: 3.974 ± 0.081
1.044ProMet: 1.044 ± 0.042
2.106ProAsn: 2.106 ± 0.074
1.602ProPro: 1.602 ± 0.058
1.725ProGln: 1.725 ± 0.062
1.443ProArg: 1.443 ± 0.046
2.644ProSer: 2.644 ± 0.067
2.633ProThr: 2.633 ± 0.065
3.048ProVal: 3.048 ± 0.069
0.457ProTrp: 0.457 ± 0.025
1.346ProTyr: 1.346 ± 0.046
0.0ProXaa: 0.0 ± 0.0
Gln
5.247GlnAla: 5.247 ± 0.12
0.511GlnCys: 0.511 ± 0.027
1.837GlnAsp: 1.837 ± 0.058
1.618GlnGlu: 1.618 ± 0.052
1.915GlnPhe: 1.915 ± 0.057
2.856GlnGly: 2.856 ± 0.071
1.332GlnHis: 1.332 ± 0.048
3.091GlnIle: 3.091 ± 0.068
2.124GlnLys: 2.124 ± 0.061
5.441GlnLeu: 5.441 ± 0.108
1.085GlnMet: 1.085 ± 0.05
1.651GlnAsn: 1.651 ± 0.059
2.221GlnPro: 2.221 ± 0.067
3.481GlnGln: 3.481 ± 0.102
2.576GlnArg: 2.576 ± 0.082
3.607GlnSer: 3.607 ± 0.096
3.377GlnThr: 3.377 ± 0.081
2.705GlnVal: 2.705 ± 0.073
0.635GlnTrp: 0.635 ± 0.034
1.508GlnTyr: 1.508 ± 0.05
0.0GlnXaa: 0.0 ± 0.0
Arg
3.731ArgAla: 3.731 ± 0.085
0.487ArgCys: 0.487 ± 0.03
2.577ArgAsp: 2.577 ± 0.082
2.623ArgGlu: 2.623 ± 0.074
2.261ArgPhe: 2.261 ± 0.057
2.566ArgGly: 2.566 ± 0.069
1.266ArgHis: 1.266 ± 0.049
3.264ArgIle: 3.264 ± 0.074
1.995ArgLys: 1.995 ± 0.065
5.352ArgLeu: 5.352 ± 0.096
1.104ArgMet: 1.104 ± 0.043
1.647ArgAsn: 1.647 ± 0.051
1.798ArgPro: 1.798 ± 0.054
2.875ArgGln: 2.875 ± 0.08
2.439ArgArg: 2.439 ± 0.064
2.082ArgSer: 2.082 ± 0.063
1.895ArgThr: 1.895 ± 0.056
3.288ArgVal: 3.288 ± 0.084
0.603ArgTrp: 0.603 ± 0.035
1.95ArgTyr: 1.95 ± 0.064
0.0ArgXaa: 0.0 ± 0.0
Ser
6.278SerAla: 6.278 ± 0.117
0.465SerCys: 0.465 ± 0.034
3.605SerAsp: 3.605 ± 0.088
3.404SerGlu: 3.404 ± 0.09
2.246SerPhe: 2.246 ± 0.063
4.892SerGly: 4.892 ± 0.1
1.612SerHis: 1.612 ± 0.05
4.028SerIle: 4.028 ± 0.077
2.479SerLys: 2.479 ± 0.07
6.066SerLeu: 6.066 ± 0.105
1.414SerMet: 1.414 ± 0.054
2.452SerAsn: 2.452 ± 0.069
2.617SerPro: 2.617 ± 0.068
3.272SerGln: 3.272 ± 0.082
2.891SerArg: 2.891 ± 0.081
3.467SerSer: 3.467 ± 0.093
3.527SerThr: 3.527 ± 0.079
4.322SerVal: 4.322 ± 0.097
0.585SerTrp: 0.585 ± 0.032
1.705SerTyr: 1.705 ± 0.055
0.0SerXaa: 0.0 ± 0.0
Thr
6.15ThrAla: 6.15 ± 0.147
0.466ThrCys: 0.466 ± 0.03
3.579ThrAsp: 3.579 ± 0.076
3.027ThrGlu: 3.027 ± 0.075
2.162ThrPhe: 2.162 ± 0.056
4.488ThrGly: 4.488 ± 0.106
1.575ThrHis: 1.575 ± 0.052
4.174ThrIle: 4.174 ± 0.088
2.312ThrLys: 2.312 ± 0.067
6.893ThrLeu: 6.893 ± 0.111
1.282ThrMet: 1.282 ± 0.048
2.633ThrAsn: 2.633 ± 0.081
3.384ThrPro: 3.384 ± 0.081
3.276ThrGln: 3.276 ± 0.081
2.463ThrArg: 2.463 ± 0.06
3.214ThrSer: 3.214 ± 0.089
4.017ThrThr: 4.017 ± 0.102
4.264ThrVal: 4.264 ± 0.084
0.542ThrTrp: 0.542 ± 0.034
1.745ThrTyr: 1.745 ± 0.065
0.0ThrXaa: 0.0 ± 0.0
Val
6.263ValAla: 6.263 ± 0.118
0.791ValCys: 0.791 ± 0.042
4.092ValAsp: 4.092 ± 0.084
3.481ValGlu: 3.481 ± 0.069
2.983ValPhe: 2.983 ± 0.08
4.593ValGly: 4.593 ± 0.087
1.155ValHis: 1.155 ± 0.05
5.108ValIle: 5.108 ± 0.096
3.012ValLys: 3.012 ± 0.075
6.486ValLeu: 6.486 ± 0.12
1.802ValMet: 1.802 ± 0.063
2.959ValAsn: 2.959 ± 0.078
2.321ValPro: 2.321 ± 0.052
2.016ValGln: 2.016 ± 0.063
2.642ValArg: 2.642 ± 0.068
4.493ValSer: 4.493 ± 0.081
4.12ValThr: 4.12 ± 0.095
4.763ValVal: 4.763 ± 0.107
0.695ValTrp: 0.695 ± 0.035
2.005ValTyr: 2.005 ± 0.061
0.0ValXaa: 0.0 ± 0.0
Trp
0.787TrpAla: 0.787 ± 0.036
0.124TrpCys: 0.124 ± 0.013
0.56TrpAsp: 0.56 ± 0.037
0.434TrpGlu: 0.434 ± 0.025
0.519TrpPhe: 0.519 ± 0.026
0.735TrpGly: 0.735 ± 0.035
0.35TrpHis: 0.35 ± 0.023
0.636TrpIle: 0.636 ± 0.034
0.328TrpLys: 0.328 ± 0.024
1.647TrpLeu: 1.647 ± 0.057
0.259TrpMet: 0.259 ± 0.02
0.325TrpAsn: 0.325 ± 0.025
0.356TrpPro: 0.356 ± 0.028
0.927TrpGln: 0.927 ± 0.044
0.644TrpArg: 0.644 ± 0.036
0.585TrpSer: 0.585 ± 0.031
0.479TrpThr: 0.479 ± 0.03
0.875TrpVal: 0.875 ± 0.038
0.165TrpTrp: 0.165 ± 0.016
0.331TrpTyr: 0.331 ± 0.028
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.819TyrAla: 2.819 ± 0.065
0.367TyrCys: 0.367 ± 0.023
1.903TyrAsp: 1.903 ± 0.069
1.62TyrGlu: 1.62 ± 0.052
1.497TyrPhe: 1.497 ± 0.049
2.176TyrGly: 2.176 ± 0.052
0.947TyrHis: 0.947 ± 0.039
1.647TyrIle: 1.647 ± 0.053
1.04TyrLys: 1.04 ± 0.045
3.366TyrLeu: 3.366 ± 0.079
0.536TyrMet: 0.536 ± 0.027
1.128TyrAsn: 1.128 ± 0.053
1.53TyrPro: 1.53 ± 0.052
2.055TyrGln: 2.055 ± 0.057
1.933TyrArg: 1.933 ± 0.054
1.629TyrSer: 1.629 ± 0.054
1.578TyrThr: 1.578 ± 0.06
1.853TyrVal: 1.853 ± 0.062
0.409TyrTrp: 0.409 ± 0.023
1.12TyrTyr: 1.12 ± 0.045
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.002XaaAsp: 0.002 ± 0.001
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 1905 proteins (628582 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