Amino acid dipepetide frequency for Bifidobacterium dolichotidis

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
12.607AlaAla: 12.607 ± 0.226
1.175AlaCys: 1.175 ± 0.049
6.35AlaAsp: 6.35 ± 0.132
6.42AlaGlu: 6.42 ± 0.149
3.39AlaPhe: 3.39 ± 0.088
7.158AlaGly: 7.158 ± 0.134
2.591AlaHis: 2.591 ± 0.076
5.864AlaIle: 5.864 ± 0.111
4.589AlaLys: 4.589 ± 0.106
9.773AlaLeu: 9.773 ± 0.148
3.37AlaMet: 3.37 ± 0.084
3.605AlaAsn: 3.605 ± 0.1
3.94AlaPro: 3.94 ± 0.109
5.77AlaGln: 5.77 ± 0.14
5.28AlaArg: 5.28 ± 0.116
6.244AlaSer: 6.244 ± 0.117
6.174AlaThr: 6.174 ± 0.121
7.979AlaVal: 7.979 ± 0.136
1.327AlaTrp: 1.327 ± 0.051
2.461AlaTyr: 2.461 ± 0.063
0.0AlaXaa: 0.0 ± 0.0
Cys
1.138CysAla: 1.138 ± 0.052
0.15CysCys: 0.15 ± 0.016
0.543CysAsp: 0.543 ± 0.036
0.521CysGlu: 0.521 ± 0.04
0.322CysPhe: 0.322 ± 0.025
0.988CysGly: 0.988 ± 0.061
0.215CysHis: 0.215 ± 0.022
0.626CysIle: 0.626 ± 0.034
0.382CysLys: 0.382 ± 0.033
0.732CysLeu: 0.732 ± 0.046
0.304CysMet: 0.304 ± 0.026
0.3CysAsn: 0.3 ± 0.024
0.462CysPro: 0.462 ± 0.031
0.237CysGln: 0.237 ± 0.022
0.393CysArg: 0.393 ± 0.029
0.654CysSer: 0.654 ± 0.036
0.671CysThr: 0.671 ± 0.044
0.788CysVal: 0.788 ± 0.036
0.124CysTrp: 0.124 ± 0.017
0.23CysTyr: 0.23 ± 0.02
0.0CysXaa: 0.0 ± 0.0
Asp
6.986AspAla: 6.986 ± 0.124
0.537AspCys: 0.537 ± 0.036
4.039AspAsp: 4.039 ± 0.113
4.824AspGlu: 4.824 ± 0.11
2.215AspPhe: 2.215 ± 0.074
4.604AspGly: 4.604 ± 0.112
1.396AspHis: 1.396 ± 0.051
3.167AspIle: 3.167 ± 0.084
2.161AspLys: 2.161 ± 0.08
5.295AspLeu: 5.295 ± 0.113
1.792AspMet: 1.792 ± 0.059
1.711AspAsn: 1.711 ± 0.057
3.208AspPro: 3.208 ± 0.083
2.422AspGln: 2.422 ± 0.077
2.875AspArg: 2.875 ± 0.088
3.344AspSer: 3.344 ± 0.09
3.169AspThr: 3.169 ± 0.093
5.125AspVal: 5.125 ± 0.102
0.921AspTrp: 0.921 ± 0.045
1.789AspTyr: 1.789 ± 0.059
0.0AspXaa: 0.0 ± 0.0
Glu
6.266GluAla: 6.266 ± 0.149
0.447GluCys: 0.447 ± 0.03
3.203GluAsp: 3.203 ± 0.09
3.803GluGlu: 3.803 ± 0.122
1.981GluPhe: 1.981 ± 0.061
3.749GluGly: 3.749 ± 0.097
2.1GluHis: 2.1 ± 0.069
2.906GluIle: 2.906 ± 0.083
2.02GluLys: 2.02 ± 0.075
5.81GluLeu: 5.81 ± 0.138
1.529GluMet: 1.529 ± 0.052
1.972GluAsn: 1.972 ± 0.069
2.784GluPro: 2.784 ± 0.075
4.194GluGln: 4.194 ± 0.101
3.82GluArg: 3.82 ± 0.107
3.444GluSer: 3.444 ± 0.086
3.129GluThr: 3.129 ± 0.079
3.946GluVal: 3.946 ± 0.104
0.691GluTrp: 0.691 ± 0.034
1.62GluTyr: 1.62 ± 0.058
0.0GluXaa: 0.0 ± 0.0
Phe
3.84PheAla: 3.84 ± 0.105
0.384PheCys: 0.384 ± 0.028
2.491PheAsp: 2.491 ± 0.079
2.081PheGlu: 2.081 ± 0.062
1.132PhePhe: 1.132 ± 0.06
3.13PheGly: 3.13 ± 0.084
0.747PheHis: 0.747 ± 0.038
2.0PheIle: 2.0 ± 0.075
1.171PheLys: 1.171 ± 0.046
2.776PheLeu: 2.776 ± 0.092
0.956PheMet: 0.956 ± 0.044
1.407PheAsn: 1.407 ± 0.056
1.309PhePro: 1.309 ± 0.05
0.99PheGln: 0.99 ± 0.041
1.633PheArg: 1.633 ± 0.057
2.33PheSer: 2.33 ± 0.068
2.322PheThr: 2.322 ± 0.066
2.658PheVal: 2.658 ± 0.074
0.423PheTrp: 0.423 ± 0.029
0.932PheTyr: 0.932 ± 0.043
0.0PheXaa: 0.0 ± 0.0
Gly
6.461GlyAla: 6.461 ± 0.127
0.778GlyCys: 0.778 ± 0.048
3.831GlyAsp: 3.831 ± 0.101
3.796GlyGlu: 3.796 ± 0.097
2.893GlyPhe: 2.893 ± 0.088
4.823GlyGly: 4.823 ± 0.117
1.711GlyHis: 1.711 ± 0.058
4.839GlyIle: 4.839 ± 0.104
3.586GlyLys: 3.586 ± 0.095
6.509GlyLeu: 6.509 ± 0.124
2.28GlyMet: 2.28 ± 0.064
2.571GlyAsn: 2.571 ± 0.079
2.58GlyPro: 2.58 ± 0.068
2.587GlyGln: 2.587 ± 0.071
3.596GlyArg: 3.596 ± 0.104
4.687GlySer: 4.687 ± 0.102
4.754GlyThr: 4.754 ± 0.107
5.397GlyVal: 5.397 ± 0.106
1.09GlyTrp: 1.09 ± 0.055
2.352GlyTyr: 2.352 ± 0.066
0.0GlyXaa: 0.0 ± 0.0
His
2.56HisAla: 2.56 ± 0.064
0.23HisCys: 0.23 ± 0.023
1.609HisAsp: 1.609 ± 0.049
1.59HisGlu: 1.59 ± 0.05
0.76HisPhe: 0.76 ± 0.037
1.907HisGly: 1.907 ± 0.061
0.715HisHis: 0.715 ± 0.042
1.429HisIle: 1.429 ± 0.057
0.955HisLys: 0.955 ± 0.043
1.811HisLeu: 1.811 ± 0.06
0.754HisMet: 0.754 ± 0.037
1.031HisAsn: 1.031 ± 0.045
1.153HisPro: 1.153 ± 0.055
0.749HisGln: 0.749 ± 0.032
1.499HisArg: 1.499 ± 0.055
1.301HisSer: 1.301 ± 0.058
1.518HisThr: 1.518 ± 0.061
2.181HisVal: 2.181 ± 0.06
0.386HisTrp: 0.386 ± 0.028
0.634HisTyr: 0.634 ± 0.034
0.0HisXaa: 0.0 ± 0.0
Ile
6.822IleAla: 6.822 ± 0.127
0.745IleCys: 0.745 ± 0.037
4.27IleAsp: 4.27 ± 0.108
3.622IleGlu: 3.622 ± 0.092
1.592IlePhe: 1.592 ± 0.059
4.552IleGly: 4.552 ± 0.1
1.118IleHis: 1.118 ± 0.048
3.238IleIle: 3.238 ± 0.102
1.883IleLys: 1.883 ± 0.066
3.85IleLeu: 3.85 ± 0.101
1.405IleMet: 1.405 ± 0.052
2.076IleAsn: 2.076 ± 0.056
2.647IlePro: 2.647 ± 0.068
1.657IleGln: 1.657 ± 0.059
2.674IleArg: 2.674 ± 0.076
3.507IleSer: 3.507 ± 0.084
3.585IleThr: 3.585 ± 0.102
5.091IleVal: 5.091 ± 0.106
0.649IleTrp: 0.649 ± 0.034
1.247IleTyr: 1.247 ± 0.052
0.0IleXaa: 0.0 ± 0.0
Lys
4.335LysAla: 4.335 ± 0.102
0.211LysCys: 0.211 ± 0.018
2.296LysAsp: 2.296 ± 0.086
2.024LysGlu: 2.024 ± 0.079
1.186LysPhe: 1.186 ± 0.046
2.558LysGly: 2.558 ± 0.071
1.168LysHis: 1.168 ± 0.044
1.896LysIle: 1.896 ± 0.082
2.042LysLys: 2.042 ± 0.076
3.536LysLeu: 3.536 ± 0.1
0.934LysMet: 0.934 ± 0.041
1.766LysAsn: 1.766 ± 0.078
2.398LysPro: 2.398 ± 0.077
2.026LysGln: 2.026 ± 0.061
2.504LysArg: 2.504 ± 0.073
2.482LysSer: 2.482 ± 0.077
2.511LysThr: 2.511 ± 0.072
2.695LysVal: 2.695 ± 0.078
0.391LysTrp: 0.391 ± 0.024
1.166LysTyr: 1.166 ± 0.052
0.0LysXaa: 0.0 ± 0.0
Leu
9.43LeuAla: 9.43 ± 0.14
1.056LeuCys: 1.056 ± 0.049
5.998LeuAsp: 5.998 ± 0.145
4.865LeuGlu: 4.865 ± 0.123
3.097LeuPhe: 3.097 ± 0.089
6.646LeuGly: 6.646 ± 0.125
2.27LeuHis: 2.27 ± 0.066
4.928LeuIle: 4.928 ± 0.123
3.568LeuLys: 3.568 ± 0.095
7.616LeuLeu: 7.616 ± 0.148
2.274LeuMet: 2.274 ± 0.067
3.362LeuAsn: 3.362 ± 0.076
4.348LeuPro: 4.348 ± 0.083
3.262LeuGln: 3.262 ± 0.09
4.815LeuArg: 4.815 ± 0.107
5.456LeuSer: 5.456 ± 0.118
5.39LeuThr: 5.39 ± 0.116
6.315LeuVal: 6.315 ± 0.127
1.031LeuTrp: 1.031 ± 0.046
2.081LeuTyr: 2.081 ± 0.064
0.0LeuXaa: 0.0 ± 0.0
Met
3.025MetAla: 3.025 ± 0.07
0.276MetCys: 0.276 ± 0.023
1.392MetAsp: 1.392 ± 0.054
1.155MetGlu: 1.155 ± 0.043
1.19MetPhe: 1.19 ± 0.063
1.85MetGly: 1.85 ± 0.07
0.827MetHis: 0.827 ± 0.039
1.438MetIle: 1.438 ± 0.051
1.108MetLys: 1.108 ± 0.04
2.728MetLeu: 2.728 ± 0.074
0.777MetMet: 0.777 ± 0.046
1.205MetAsn: 1.205 ± 0.048
1.653MetPro: 1.653 ± 0.054
1.333MetGln: 1.333 ± 0.053
1.729MetArg: 1.729 ± 0.058
1.928MetSer: 1.928 ± 0.051
1.944MetThr: 1.944 ± 0.058
1.781MetVal: 1.781 ± 0.059
0.282MetTrp: 0.282 ± 0.024
0.639MetTyr: 0.639 ± 0.036
0.0MetXaa: 0.0 ± 0.0
Asn
4.102AsnAla: 4.102 ± 0.102
0.315AsnCys: 0.315 ± 0.03
2.326AsnAsp: 2.326 ± 0.074
2.352AsnGlu: 2.352 ± 0.075
1.045AsnPhe: 1.045 ± 0.049
3.162AsnGly: 3.162 ± 0.095
0.786AsnHis: 0.786 ± 0.042
1.942AsnIle: 1.942 ± 0.07
1.564AsnLys: 1.564 ± 0.056
2.958AsnLeu: 2.958 ± 0.087
1.036AsnMet: 1.036 ± 0.043
1.694AsnAsn: 1.694 ± 0.081
2.196AsnPro: 2.196 ± 0.056
1.299AsnGln: 1.299 ± 0.06
1.868AsnArg: 1.868 ± 0.071
2.165AsnSer: 2.165 ± 0.085
2.491AsnThr: 2.491 ± 0.08
2.686AsnVal: 2.686 ± 0.073
0.489AsnTrp: 0.489 ± 0.031
1.019AsnTyr: 1.019 ± 0.044
0.0AsnXaa: 0.0 ± 0.0
Pro
4.469ProAla: 4.469 ± 0.108
0.326ProCys: 0.326 ± 0.024
3.053ProAsp: 3.053 ± 0.079
3.477ProGlu: 3.477 ± 0.088
1.614ProPhe: 1.614 ± 0.064
2.936ProGly: 2.936 ± 0.066
1.094ProHis: 1.094 ± 0.05
2.459ProIle: 2.459 ± 0.068
1.796ProLys: 1.796 ± 0.062
3.664ProLeu: 3.664 ± 0.091
1.236ProMet: 1.236 ± 0.051
1.833ProAsn: 1.833 ± 0.058
1.071ProPro: 1.071 ± 0.045
2.2ProGln: 2.2 ± 0.074
2.026ProArg: 2.026 ± 0.06
3.019ProSer: 3.019 ± 0.076
2.952ProThr: 2.952 ± 0.072
3.896ProVal: 3.896 ± 0.082
0.645ProTrp: 0.645 ± 0.033
1.362ProTyr: 1.362 ± 0.054
0.0ProXaa: 0.0 ± 0.0
Gln
4.78GlnAla: 4.78 ± 0.117
0.376GlnCys: 0.376 ± 0.029
2.109GlnAsp: 2.109 ± 0.063
2.159GlnGlu: 2.159 ± 0.065
1.492GlnPhe: 1.492 ± 0.057
2.717GlnGly: 2.717 ± 0.086
1.318GlnHis: 1.318 ± 0.046
2.495GlnIle: 2.495 ± 0.07
1.444GlnLys: 1.444 ± 0.061
4.129GlnLeu: 4.129 ± 0.105
1.281GlnMet: 1.281 ± 0.046
1.616GlnAsn: 1.616 ± 0.063
2.178GlnPro: 2.178 ± 0.097
3.273GlnGln: 3.273 ± 0.143
2.708GlnArg: 2.708 ± 0.078
2.602GlnSer: 2.602 ± 0.086
2.617GlnThr: 2.617 ± 0.072
2.878GlnVal: 2.878 ± 0.078
0.688GlnTrp: 0.688 ± 0.032
1.32GlnTyr: 1.32 ± 0.06
0.0GlnXaa: 0.0 ± 0.0
Arg
4.761ArgAla: 4.761 ± 0.109
0.393ArgCys: 0.393 ± 0.028
2.995ArgAsp: 2.995 ± 0.096
3.292ArgGlu: 3.292 ± 0.098
2.102ArgPhe: 2.102 ± 0.06
3.149ArgGly: 3.149 ± 0.08
1.34ArgHis: 1.34 ± 0.05
3.496ArgIle: 3.496 ± 0.083
2.534ArgLys: 2.534 ± 0.079
4.641ArgLeu: 4.641 ± 0.114
1.781ArgMet: 1.781 ± 0.057
2.159ArgAsn: 2.159 ± 0.065
2.081ArgPro: 2.081 ± 0.071
2.22ArgGln: 2.22 ± 0.069
3.557ArgArg: 3.557 ± 0.126
3.205ArgSer: 3.205 ± 0.079
3.218ArgThr: 3.218 ± 0.087
4.068ArgVal: 4.068 ± 0.091
0.727ArgTrp: 0.727 ± 0.035
1.566ArgTyr: 1.566 ± 0.061
0.0ArgXaa: 0.0 ± 0.0
Ser
6.305SerAla: 6.305 ± 0.122
0.541SerCys: 0.541 ± 0.032
3.933SerAsp: 3.933 ± 0.082
3.37SerGlu: 3.37 ± 0.085
2.259SerPhe: 2.259 ± 0.084
4.508SerGly: 4.508 ± 0.098
1.412SerHis: 1.412 ± 0.05
3.557SerIle: 3.557 ± 0.089
2.385SerLys: 2.385 ± 0.073
5.497SerLeu: 5.497 ± 0.13
1.918SerMet: 1.918 ± 0.063
2.461SerAsn: 2.461 ± 0.086
2.452SerPro: 2.452 ± 0.074
2.736SerGln: 2.736 ± 0.087
3.147SerArg: 3.147 ± 0.088
4.585SerSer: 4.585 ± 0.133
3.981SerThr: 3.981 ± 0.102
4.58SerVal: 4.58 ± 0.088
0.851SerTrp: 0.851 ± 0.04
1.637SerTyr: 1.637 ± 0.06
0.0SerXaa: 0.0 ± 0.0
Thr
6.252ThrAla: 6.252 ± 0.13
0.536ThrCys: 0.536 ± 0.038
3.748ThrAsp: 3.748 ± 0.085
3.331ThrGlu: 3.331 ± 0.082
2.131ThrPhe: 2.131 ± 0.071
4.567ThrGly: 4.567 ± 0.109
1.403ThrHis: 1.403 ± 0.055
3.661ThrIle: 3.661 ± 0.078
2.578ThrLys: 2.578 ± 0.075
5.406ThrLeu: 5.406 ± 0.118
1.605ThrMet: 1.605 ± 0.056
2.447ThrAsn: 2.447 ± 0.067
3.329ThrPro: 3.329 ± 0.08
2.615ThrGln: 2.615 ± 0.076
2.828ThrArg: 2.828 ± 0.082
3.837ThrSer: 3.837 ± 0.103
4.033ThrThr: 4.033 ± 0.095
5.127ThrVal: 5.127 ± 0.133
0.762ThrTrp: 0.762 ± 0.043
1.726ThrTyr: 1.726 ± 0.059
0.0ThrXaa: 0.0 ± 0.0
Val
8.009ValAla: 8.009 ± 0.128
0.843ValCys: 0.843 ± 0.041
4.865ValAsp: 4.865 ± 0.096
4.45ValGlu: 4.45 ± 0.102
2.758ValPhe: 2.758 ± 0.088
4.821ValGly: 4.821 ± 0.109
1.75ValHis: 1.75 ± 0.061
4.32ValIle: 4.32 ± 0.098
2.813ValLys: 2.813 ± 0.072
7.521ValLeu: 7.521 ± 0.149
1.92ValMet: 1.92 ± 0.062
2.773ValAsn: 2.773 ± 0.068
3.762ValPro: 3.762 ± 0.092
3.038ValGln: 3.038 ± 0.097
4.024ValArg: 4.024 ± 0.097
4.95ValSer: 4.95 ± 0.094
5.036ValThr: 5.036 ± 0.12
6.044ValVal: 6.044 ± 0.139
0.901ValTrp: 0.901 ± 0.041
1.705ValTyr: 1.705 ± 0.058
0.0ValXaa: 0.0 ± 0.0
Trp
1.062TrpAla: 1.062 ± 0.045
0.15TrpCys: 0.15 ± 0.015
0.749TrpAsp: 0.749 ± 0.038
0.545TrpGlu: 0.545 ± 0.034
0.595TrpPhe: 0.595 ± 0.037
0.812TrpGly: 0.812 ± 0.038
0.337TrpHis: 0.337 ± 0.027
0.771TrpIle: 0.771 ± 0.04
0.571TrpLys: 0.571 ± 0.034
1.357TrpLeu: 1.357 ± 0.056
0.402TrpMet: 0.402 ± 0.027
0.604TrpAsn: 0.604 ± 0.032
0.493TrpPro: 0.493 ± 0.031
0.658TrpGln: 0.658 ± 0.031
0.83TrpArg: 0.83 ± 0.042
0.764TrpSer: 0.764 ± 0.04
0.832TrpThr: 0.832 ± 0.038
0.836TrpVal: 0.836 ± 0.042
0.232TrpTrp: 0.232 ± 0.023
0.415TrpTyr: 0.415 ± 0.028
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.858TyrAla: 2.858 ± 0.076
0.31TyrCys: 0.31 ± 0.023
1.781TyrAsp: 1.781 ± 0.061
1.739TyrGlu: 1.739 ± 0.057
0.956TyrPhe: 0.956 ± 0.041
2.485TyrGly: 2.485 ± 0.071
0.474TyrHis: 0.474 ± 0.029
1.195TyrIle: 1.195 ± 0.052
0.975TyrLys: 0.975 ± 0.044
2.198TyrLeu: 2.198 ± 0.072
0.702TyrMet: 0.702 ± 0.042
0.904TyrAsn: 0.904 ± 0.049
1.084TyrPro: 1.084 ± 0.049
0.914TyrGln: 0.914 ± 0.044
1.479TyrArg: 1.479 ± 0.055
1.612TyrSer: 1.612 ± 0.048
1.592TyrThr: 1.592 ± 0.056
2.233TyrVal: 2.233 ± 0.077
0.408TyrTrp: 0.408 ± 0.028
0.784TyrTyr: 0.784 ± 0.043
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 1448 proteins (539544 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