Amino acid dipepetide frequency for Polynucleobacter necessarius subsp. necessarius (strain STIR1)

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
10.044AlaAla: 10.044 ± 0.224
1.127AlaCys: 1.127 ± 0.053
5.28AlaAsp: 5.28 ± 0.112
5.658AlaGlu: 5.658 ± 0.125
3.798AlaPhe: 3.798 ± 0.099
7.531AlaGly: 7.531 ± 0.156
1.865AlaHis: 1.865 ± 0.068
6.086AlaIle: 6.086 ± 0.137
6.286AlaLys: 6.286 ± 0.154
10.353AlaLeu: 10.353 ± 0.161
2.876AlaMet: 2.876 ± 0.088
3.827AlaAsn: 3.827 ± 0.103
4.094AlaPro: 4.094 ± 0.102
4.329AlaGln: 4.329 ± 0.11
4.692AlaArg: 4.692 ± 0.11
5.636AlaSer: 5.636 ± 0.117
4.45AlaThr: 4.45 ± 0.11
6.511AlaVal: 6.511 ± 0.138
1.3AlaTrp: 1.3 ± 0.062
2.691AlaTyr: 2.691 ± 0.083
0.0AlaXaa: 0.0 ± 0.0
Cys
1.08CysAla: 1.08 ± 0.051
0.126CysCys: 0.126 ± 0.019
0.568CysAsp: 0.568 ± 0.034
0.497CysGlu: 0.497 ± 0.033
0.43CysPhe: 0.43 ± 0.034
0.931CysGly: 0.931 ± 0.053
0.301CysHis: 0.301 ± 0.029
0.682CysIle: 0.682 ± 0.044
0.472CysLys: 0.472 ± 0.041
0.954CysLeu: 0.954 ± 0.053
0.222CysMet: 0.222 ± 0.02
0.324CysAsn: 0.324 ± 0.029
0.566CysPro: 0.566 ± 0.044
0.314CysGln: 0.314 ± 0.029
0.427CysArg: 0.427 ± 0.037
0.65CysSer: 0.65 ± 0.041
0.465CysThr: 0.465 ± 0.037
0.731CysVal: 0.731 ± 0.043
0.094CysTrp: 0.094 ± 0.017
0.257CysTyr: 0.257 ± 0.028
0.0CysXaa: 0.0 ± 0.0
Asp
5.181AspAla: 5.181 ± 0.122
0.563AspCys: 0.563 ± 0.037
2.399AspAsp: 2.399 ± 0.084
3.153AspGlu: 3.153 ± 0.093
2.239AspPhe: 2.239 ± 0.081
3.812AspGly: 3.812 ± 0.113
1.072AspHis: 1.072 ± 0.063
3.326AspIle: 3.326 ± 0.103
2.56AspLys: 2.56 ± 0.088
5.957AspLeu: 5.957 ± 0.117
1.208AspMet: 1.208 ± 0.055
1.361AspAsn: 1.361 ± 0.065
2.688AspPro: 2.688 ± 0.078
2.147AspGln: 2.147 ± 0.063
2.75AspArg: 2.75 ± 0.086
2.881AspSer: 2.881 ± 0.076
2.167AspThr: 2.167 ± 0.074
3.773AspVal: 3.773 ± 0.107
0.924AspTrp: 0.924 ± 0.051
1.455AspTyr: 1.455 ± 0.057
0.0AspXaa: 0.0 ± 0.0
Glu
5.97GluAla: 5.97 ± 0.152
0.529GluCys: 0.529 ± 0.039
2.567GluAsp: 2.567 ± 0.08
3.296GluGlu: 3.296 ± 0.097
2.315GluPhe: 2.315 ± 0.082
3.852GluGly: 3.852 ± 0.123
1.243GluHis: 1.243 ± 0.056
4.272GluIle: 4.272 ± 0.113
3.79GluLys: 3.79 ± 0.094
6.142GluLeu: 6.142 ± 0.132
1.643GluMet: 1.643 ± 0.065
2.162GluAsn: 2.162 ± 0.075
1.93GluPro: 1.93 ± 0.072
2.557GluGln: 2.557 ± 0.08
3.432GluArg: 3.432 ± 0.114
3.205GluSer: 3.205 ± 0.092
2.775GluThr: 2.775 ± 0.094
4.319GluVal: 4.319 ± 0.107
0.734GluTrp: 0.734 ± 0.049
1.418GluTyr: 1.418 ± 0.056
0.0GluXaa: 0.0 ± 0.0
Phe
3.931PheAla: 3.931 ± 0.107
0.504PheCys: 0.504 ± 0.038
2.392PheAsp: 2.392 ± 0.09
2.328PheGlu: 2.328 ± 0.072
1.789PhePhe: 1.789 ± 0.08
3.499PheGly: 3.499 ± 0.108
0.813PheHis: 0.813 ± 0.044
2.496PheIle: 2.496 ± 0.084
2.1PheLys: 2.1 ± 0.071
3.803PheLeu: 3.803 ± 0.118
0.988PheMet: 0.988 ± 0.046
1.574PheAsn: 1.574 ± 0.064
1.584PhePro: 1.584 ± 0.066
1.285PheGln: 1.285 ± 0.054
1.579PheArg: 1.579 ± 0.064
2.819PheSer: 2.819 ± 0.096
2.137PheThr: 2.137 ± 0.062
2.654PheVal: 2.654 ± 0.075
0.514PheTrp: 0.514 ± 0.038
1.166PheTyr: 1.166 ± 0.051
0.0PheXaa: 0.0 ± 0.0
Gly
6.609GlyAla: 6.609 ± 0.146
0.894GlyCys: 0.894 ± 0.055
3.862GlyAsp: 3.862 ± 0.12
4.186GlyGlu: 4.186 ± 0.115
3.407GlyPhe: 3.407 ± 0.104
6.224GlyGly: 6.224 ± 0.177
1.621GlyHis: 1.621 ± 0.06
5.288GlyIle: 5.288 ± 0.137
4.966GlyLys: 4.966 ± 0.121
7.83GlyLeu: 7.83 ± 0.14
2.308GlyMet: 2.308 ± 0.072
2.681GlyAsn: 2.681 ± 0.092
2.374GlyPro: 2.374 ± 0.083
2.839GlyGln: 2.839 ± 0.079
3.741GlyArg: 3.741 ± 0.115
4.633GlySer: 4.633 ± 0.117
3.568GlyThr: 3.568 ± 0.104
5.713GlyVal: 5.713 ± 0.127
0.974GlyTrp: 0.974 ± 0.056
2.342GlyTyr: 2.342 ± 0.082
0.0GlyXaa: 0.0 ± 0.0
His
1.982HisAla: 1.982 ± 0.076
0.252HisCys: 0.252 ± 0.023
0.993HisAsp: 0.993 ± 0.055
1.08HisGlu: 1.08 ± 0.048
1.003HisPhe: 1.003 ± 0.059
1.604HisGly: 1.604 ± 0.076
0.628HisHis: 0.628 ± 0.044
1.354HisIle: 1.354 ± 0.053
0.763HisLys: 0.763 ± 0.039
2.256HisLeu: 2.256 ± 0.083
0.46HisMet: 0.46 ± 0.039
0.655HisAsn: 0.655 ± 0.044
1.27HisPro: 1.27 ± 0.058
0.885HisGln: 0.885 ± 0.05
1.102HisArg: 1.102 ± 0.06
1.27HisSer: 1.27 ± 0.057
0.951HisThr: 0.951 ± 0.053
1.184HisVal: 1.184 ± 0.049
0.351HisTrp: 0.351 ± 0.026
0.65HisTyr: 0.65 ± 0.041
0.0HisXaa: 0.0 ± 0.0
Ile
7.257IleAla: 7.257 ± 0.162
0.734IleCys: 0.734 ± 0.043
3.896IleAsp: 3.896 ± 0.105
4.314IleGlu: 4.314 ± 0.113
2.357IlePhe: 2.357 ± 0.091
5.05IleGly: 5.05 ± 0.136
1.272IleHis: 1.272 ± 0.056
3.286IleIle: 3.286 ± 0.093
3.123IleLys: 3.123 ± 0.084
5.962IleLeu: 5.962 ± 0.115
1.277IleMet: 1.277 ± 0.057
2.56IleAsn: 2.56 ± 0.08
3.148IlePro: 3.148 ± 0.089
2.399IleGln: 2.399 ± 0.074
2.97IleArg: 2.97 ± 0.082
4.242IleSer: 4.242 ± 0.102
3.383IleThr: 3.383 ± 0.085
4.247IleVal: 4.247 ± 0.101
0.731IleTrp: 0.731 ± 0.05
1.66IleTyr: 1.66 ± 0.072
0.0IleXaa: 0.0 ± 0.0
Lys
5.584LysAla: 5.584 ± 0.154
0.376LysCys: 0.376 ± 0.032
3.024LysAsp: 3.024 ± 0.081
3.397LysGlu: 3.397 ± 0.094
1.51LysPhe: 1.51 ± 0.064
3.506LysGly: 3.506 ± 0.095
1.095LysHis: 1.095 ± 0.05
3.425LysIle: 3.425 ± 0.097
3.538LysLys: 3.538 ± 0.125
5.587LysLeu: 5.587 ± 0.118
1.772LysMet: 1.772 ± 0.069
2.328LysAsn: 2.328 ± 0.07
3.071LysPro: 3.071 ± 0.106
2.313LysGln: 2.313 ± 0.086
3.012LysArg: 3.012 ± 0.09
3.657LysSer: 3.657 ± 0.091
3.462LysThr: 3.462 ± 0.105
4.027LysVal: 4.027 ± 0.118
0.499LysTrp: 0.499 ± 0.034
1.196LysTyr: 1.196 ± 0.063
0.0LysXaa: 0.0 ± 0.0
Leu
10.674LeuAla: 10.674 ± 0.174
1.087LeuCys: 1.087 ± 0.048
5.574LeuAsp: 5.574 ± 0.123
5.96LeuGlu: 5.96 ± 0.137
3.847LeuPhe: 3.847 ± 0.118
7.739LeuGly: 7.739 ± 0.158
2.115LeuHis: 2.115 ± 0.072
6.464LeuIle: 6.464 ± 0.152
5.757LeuLys: 5.757 ± 0.139
10.531LeuLeu: 10.531 ± 0.226
2.715LeuMet: 2.715 ± 0.088
4.171LeuAsn: 4.171 ± 0.108
5.124LeuPro: 5.124 ± 0.124
3.943LeuGln: 3.943 ± 0.1
5.265LeuArg: 5.265 ± 0.12
7.005LeuSer: 7.005 ± 0.147
5.179LeuThr: 5.179 ± 0.111
6.918LeuVal: 6.918 ± 0.136
1.176LeuTrp: 1.176 ± 0.071
2.276LeuTyr: 2.276 ± 0.077
0.0LeuXaa: 0.0 ± 0.0
Met
2.846MetAla: 2.846 ± 0.09
0.173MetCys: 0.173 ± 0.02
1.159MetAsp: 1.159 ± 0.05
1.193MetGlu: 1.193 ± 0.052
0.771MetPhe: 0.771 ± 0.042
2.174MetGly: 2.174 ± 0.073
0.576MetHis: 0.576 ± 0.042
1.527MetIle: 1.527 ± 0.066
1.468MetLys: 1.468 ± 0.059
2.454MetLeu: 2.454 ± 0.083
0.739MetMet: 0.739 ± 0.039
1.27MetAsn: 1.27 ± 0.063
1.443MetPro: 1.443 ± 0.056
1.216MetGln: 1.216 ± 0.056
1.604MetArg: 1.604 ± 0.06
1.91MetSer: 1.91 ± 0.074
1.594MetThr: 1.594 ± 0.065
1.841MetVal: 1.841 ± 0.074
0.193MetTrp: 0.193 ± 0.023
0.504MetTyr: 0.504 ± 0.034
0.0MetXaa: 0.0 ± 0.0
Asn
3.625AsnAla: 3.625 ± 0.096
0.376AsnCys: 0.376 ± 0.03
1.712AsnAsp: 1.712 ± 0.073
1.969AsnGlu: 1.969 ± 0.07
1.584AsnPhe: 1.584 ± 0.062
2.859AsnGly: 2.859 ± 0.094
0.744AsnHis: 0.744 ± 0.042
2.367AsnIle: 2.367 ± 0.076
1.925AsnLys: 1.925 ± 0.065
4.129AsnLeu: 4.129 ± 0.125
0.914AsnMet: 0.914 ± 0.053
1.398AsnAsn: 1.398 ± 0.068
2.577AsnPro: 2.577 ± 0.084
1.658AsnGln: 1.658 ± 0.063
1.967AsnArg: 1.967 ± 0.068
2.37AsnSer: 2.37 ± 0.084
2.211AsnThr: 2.211 ± 0.074
2.293AsnVal: 2.293 ± 0.078
0.66AsnTrp: 0.66 ± 0.05
1.072AsnTyr: 1.072 ± 0.061
0.0AsnXaa: 0.0 ± 0.0
Pro
4.225ProAla: 4.225 ± 0.108
0.413ProCys: 0.413 ± 0.03
2.565ProAsp: 2.565 ± 0.081
3.289ProGlu: 3.289 ± 0.094
1.754ProPhe: 1.754 ± 0.062
3.499ProGly: 3.499 ± 0.107
0.983ProHis: 0.983 ± 0.051
2.908ProIle: 2.908 ± 0.079
2.644ProLys: 2.644 ± 0.074
4.321ProLeu: 4.321 ± 0.104
1.181ProMet: 1.181 ± 0.056
2.127ProAsn: 2.127 ± 0.076
1.613ProPro: 1.613 ± 0.07
1.794ProGln: 1.794 ± 0.067
1.757ProArg: 1.757 ± 0.071
2.844ProSer: 2.844 ± 0.09
2.271ProThr: 2.271 ± 0.081
3.429ProVal: 3.429 ± 0.094
0.578ProTrp: 0.578 ± 0.043
1.324ProTyr: 1.324 ± 0.063
0.0ProXaa: 0.0 ± 0.0
Gln
4.297GlnAla: 4.297 ± 0.115
0.299GlnCys: 0.299 ± 0.026
1.821GlnAsp: 1.821 ± 0.069
2.308GlnGlu: 2.308 ± 0.082
1.695GlnPhe: 1.695 ± 0.058
2.72GlnGly: 2.72 ± 0.086
0.771GlnHis: 0.771 ± 0.039
2.844GlnIle: 2.844 ± 0.089
2.426GlnLys: 2.426 ± 0.073
3.901GlnLeu: 3.901 ± 0.097
1.117GlnMet: 1.117 ± 0.053
1.542GlnAsn: 1.542 ± 0.057
1.428GlnPro: 1.428 ± 0.06
1.576GlnGln: 1.576 ± 0.075
2.103GlnArg: 2.103 ± 0.072
2.523GlnSer: 2.523 ± 0.089
2.066GlnThr: 2.066 ± 0.076
2.995GlnVal: 2.995 ± 0.087
0.502GlnTrp: 0.502 ± 0.033
1.109GlnTyr: 1.109 ± 0.054
0.0GlnXaa: 0.0 ± 0.0
Arg
4.507ArgAla: 4.507 ± 0.115
0.405ArgCys: 0.405 ± 0.034
2.656ArgAsp: 2.656 ± 0.088
3.168ArgGlu: 3.168 ± 0.084
2.31ArgPhe: 2.31 ± 0.08
3.281ArgGly: 3.281 ± 0.094
1.082ArgHis: 1.082 ± 0.053
3.294ArgIle: 3.294 ± 0.077
2.626ArgLys: 2.626 ± 0.089
5.547ArgLeu: 5.547 ± 0.118
1.487ArgMet: 1.487 ± 0.063
1.937ArgAsn: 1.937 ± 0.074
2.068ArgPro: 2.068 ± 0.074
2.189ArgGln: 2.189 ± 0.072
2.696ArgArg: 2.696 ± 0.09
2.762ArgSer: 2.762 ± 0.09
2.058ArgThr: 2.058 ± 0.078
3.412ArgVal: 3.412 ± 0.099
0.675ArgTrp: 0.675 ± 0.042
1.68ArgTyr: 1.68 ± 0.059
0.0ArgXaa: 0.0 ± 0.0
Ser
5.829SerAla: 5.829 ± 0.113
0.561SerCys: 0.561 ± 0.041
3.039SerAsp: 3.039 ± 0.087
3.501SerGlu: 3.501 ± 0.097
2.617SerPhe: 2.617 ± 0.076
5.285SerGly: 5.285 ± 0.109
1.275SerHis: 1.275 ± 0.055
3.948SerIle: 3.948 ± 0.115
3.709SerLys: 3.709 ± 0.108
6.375SerLeu: 6.375 ± 0.155
1.66SerMet: 1.66 ± 0.062
2.607SerAsn: 2.607 ± 0.089
2.866SerPro: 2.866 ± 0.086
2.419SerGln: 2.419 ± 0.081
2.77SerArg: 2.77 ± 0.083
4.191SerSer: 4.191 ± 0.134
3.059SerThr: 3.059 ± 0.092
3.916SerVal: 3.916 ± 0.096
0.838SerTrp: 0.838 ± 0.046
1.71SerTyr: 1.71 ± 0.063
0.0SerXaa: 0.0 ± 0.0
Thr
4.517ThrAla: 4.517 ± 0.101
0.43ThrCys: 0.43 ± 0.036
2.436ThrAsp: 2.436 ± 0.081
2.617ThrGlu: 2.617 ± 0.082
1.905ThrPhe: 1.905 ± 0.078
4.265ThrGly: 4.265 ± 0.124
1.097ThrHis: 1.097 ± 0.048
3.126ThrIle: 3.126 ± 0.083
2.518ThrLys: 2.518 ± 0.074
5.629ThrLeu: 5.629 ± 0.126
1.156ThrMet: 1.156 ± 0.052
1.888ThrAsn: 1.888 ± 0.072
2.972ThrPro: 2.972 ± 0.092
2.016ThrGln: 2.016 ± 0.07
2.328ThrArg: 2.328 ± 0.076
3.044ThrSer: 3.044 ± 0.084
2.473ThrThr: 2.473 ± 0.089
3.533ThrVal: 3.533 ± 0.102
0.524ThrTrp: 0.524 ± 0.037
1.258ThrTyr: 1.258 ± 0.058
0.0ThrXaa: 0.0 ± 0.0
Val
6.936ValAla: 6.936 ± 0.164
0.719ValCys: 0.719 ± 0.042
3.874ValAsp: 3.874 ± 0.101
4.109ValGlu: 4.109 ± 0.101
2.673ValPhe: 2.673 ± 0.085
5.292ValGly: 5.292 ± 0.13
1.287ValHis: 1.287 ± 0.062
4.865ValIle: 4.865 ± 0.103
3.929ValLys: 3.929 ± 0.115
7.148ValLeu: 7.148 ± 0.151
2.041ValMet: 2.041 ± 0.076
2.651ValAsn: 2.651 ± 0.077
2.93ValPro: 2.93 ± 0.089
2.313ValGln: 2.313 ± 0.064
3.291ValArg: 3.291 ± 0.1
4.097ValSer: 4.097 ± 0.103
3.701ValThr: 3.701 ± 0.119
5.342ValVal: 5.342 ± 0.158
0.845ValTrp: 0.845 ± 0.053
1.668ValTyr: 1.668 ± 0.061
0.0ValXaa: 0.0 ± 0.0
Trp
0.959TrpAla: 0.959 ± 0.054
0.18TrpCys: 0.18 ± 0.021
0.529TrpAsp: 0.529 ± 0.034
0.598TrpGlu: 0.598 ± 0.042
0.62TrpPhe: 0.62 ± 0.046
0.791TrpGly: 0.791 ± 0.046
0.321TrpHis: 0.321 ± 0.031
0.909TrpIle: 0.909 ± 0.05
0.61TrpLys: 0.61 ± 0.036
1.675TrpLeu: 1.675 ± 0.082
0.346TrpMet: 0.346 ± 0.033
0.519TrpAsn: 0.519 ± 0.035
0.487TrpPro: 0.487 ± 0.041
0.613TrpGln: 0.613 ± 0.042
0.759TrpArg: 0.759 ± 0.047
0.682TrpSer: 0.682 ± 0.048
0.524TrpThr: 0.524 ± 0.033
1.045TrpVal: 1.045 ± 0.052
0.193TrpTrp: 0.193 ± 0.019
0.294TrpTyr: 0.294 ± 0.03
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.384TyrAla: 2.384 ± 0.069
0.343TyrCys: 0.343 ± 0.03
1.27TyrAsp: 1.27 ± 0.053
1.532TyrGlu: 1.532 ± 0.06
1.329TyrPhe: 1.329 ± 0.058
2.145TyrGly: 2.145 ± 0.084
0.529TyrHis: 0.529 ± 0.037
1.406TyrIle: 1.406 ± 0.068
1.166TyrLys: 1.166 ± 0.06
2.967TyrLeu: 2.967 ± 0.107
0.539TyrMet: 0.539 ± 0.041
0.828TyrAsn: 0.828 ± 0.048
1.285TyrPro: 1.285 ± 0.057
1.238TyrGln: 1.238 ± 0.048
1.599TyrArg: 1.599 ± 0.069
1.754TyrSer: 1.754 ± 0.07
1.238TyrThr: 1.238 ± 0.062
1.828TyrVal: 1.828 ± 0.069
0.351TyrTrp: 0.351 ± 0.033
0.773TyrTyr: 0.773 ± 0.046
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 1507 proteins (404725 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