Amino acid dipepetide frequency for Campylobacter sp. MIT 12-5580

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
4.207AlaAla: 4.207 ± 0.117
1.249AlaCys: 1.249 ± 0.054
3.139AlaAsp: 3.139 ± 0.083
3.514AlaGlu: 3.514 ± 0.077
4.82AlaPhe: 4.82 ± 0.122
4.174AlaGly: 4.174 ± 0.103
1.459AlaHis: 1.459 ± 0.052
5.055AlaIle: 5.055 ± 0.103
7.652AlaLys: 7.652 ± 0.123
10.727AlaLeu: 10.727 ± 0.154
1.997AlaMet: 1.997 ± 0.055
4.325AlaAsn: 4.325 ± 0.099
1.773AlaPro: 1.773 ± 0.063
2.99AlaGln: 2.99 ± 0.082
3.045AlaArg: 3.045 ± 0.074
5.558AlaSer: 5.558 ± 0.107
2.814AlaThr: 2.814 ± 0.082
3.882AlaVal: 3.882 ± 0.099
0.528AlaTrp: 0.528 ± 0.034
3.11AlaTyr: 3.11 ± 0.077
0.0AlaXaa: 0.0 ± 0.0
Cys
0.926CysAla: 0.926 ± 0.04
0.14CysCys: 0.14 ± 0.017
0.669CysAsp: 0.669 ± 0.039
1.197CysGlu: 1.197 ± 0.052
0.876CysPhe: 0.876 ± 0.042
0.863CysGly: 0.863 ± 0.046
0.183CysHis: 0.183 ± 0.021
0.966CysIle: 0.966 ± 0.045
1.053CysLys: 1.053 ± 0.051
1.134CysLeu: 1.134 ± 0.047
0.31CysMet: 0.31 ± 0.021
0.395CysAsn: 0.395 ± 0.027
0.346CysPro: 0.346 ± 0.028
0.271CysGln: 0.271 ± 0.022
0.208CysArg: 0.208 ± 0.021
0.655CysSer: 0.655 ± 0.04
0.418CysThr: 0.418 ± 0.027
1.001CysVal: 1.001 ± 0.046
0.048CysTrp: 0.048 ± 0.01
0.307CysTyr: 0.307 ± 0.027
0.0CysXaa: 0.0 ± 0.0
Asp
2.827AspAla: 2.827 ± 0.084
0.45AspCys: 0.45 ± 0.03
2.557AspAsp: 2.557 ± 0.073
6.251AspGlu: 6.251 ± 0.12
4.594AspPhe: 4.594 ± 0.1
2.416AspGly: 2.416 ± 0.072
0.63AspHis: 0.63 ± 0.032
4.338AspIle: 4.338 ± 0.096
5.002AspLys: 5.002 ± 0.105
5.56AspLeu: 5.56 ± 0.105
1.165AspMet: 1.165 ± 0.049
1.924AspAsn: 1.924 ± 0.069
1.163AspPro: 1.163 ± 0.047
1.138AspGln: 1.138 ± 0.041
1.391AspArg: 1.391 ± 0.056
2.563AspSer: 2.563 ± 0.068
2.495AspThr: 2.495 ± 0.076
1.978AspVal: 1.978 ± 0.066
0.271AspTrp: 0.271 ± 0.022
1.983AspTyr: 1.983 ± 0.06
0.0AspXaa: 0.0 ± 0.0
Glu
5.484GluAla: 5.484 ± 0.123
0.82GluCys: 0.82 ± 0.039
2.993GluAsp: 2.993 ± 0.083
4.569GluGlu: 4.569 ± 0.131
4.881GluPhe: 4.881 ± 0.094
3.302GluGly: 3.302 ± 0.068
1.281GluHis: 1.281 ± 0.044
4.941GluIle: 4.941 ± 0.113
7.18GluLys: 7.18 ± 0.159
10.199GluLeu: 10.199 ± 0.176
1.237GluMet: 1.237 ± 0.052
5.133GluAsn: 5.133 ± 0.117
1.552GluPro: 1.552 ± 0.056
3.038GluGln: 3.038 ± 0.078
2.403GluArg: 2.403 ± 0.079
3.729GluSer: 3.729 ± 0.076
1.778GluThr: 1.778 ± 0.054
3.756GluVal: 3.756 ± 0.094
0.395GluTrp: 0.395 ± 0.026
2.473GluTyr: 2.473 ± 0.069
0.0GluXaa: 0.0 ± 0.0
Phe
4.487PheAla: 4.487 ± 0.106
0.937PheCys: 0.937 ± 0.044
3.851PheAsp: 3.851 ± 0.083
4.53PheGlu: 4.53 ± 0.099
3.83PhePhe: 3.83 ± 0.101
3.543PheGly: 3.543 ± 0.084
0.989PheHis: 0.989 ± 0.044
5.122PheIle: 5.122 ± 0.13
5.903PheLys: 5.903 ± 0.106
6.506PheLeu: 6.506 ± 0.151
1.43PheMet: 1.43 ± 0.051
2.868PheAsn: 2.868 ± 0.083
0.994PhePro: 0.994 ± 0.041
1.333PheGln: 1.333 ± 0.052
1.373PheArg: 1.373 ± 0.044
4.415PheSer: 4.415 ± 0.105
2.315PheThr: 2.315 ± 0.074
4.047PheVal: 4.047 ± 0.115
0.511PheTrp: 0.511 ± 0.03
2.652PheTyr: 2.652 ± 0.069
0.0PheXaa: 0.0 ± 0.0
Gly
4.528GlyAla: 4.528 ± 0.117
0.581GlyCys: 0.581 ± 0.042
2.624GlyAsp: 2.624 ± 0.071
3.509GlyGlu: 3.509 ± 0.072
4.162GlyPhe: 4.162 ± 0.101
3.864GlyGly: 3.864 ± 0.131
0.869GlyHis: 0.869 ± 0.04
4.553GlyIle: 4.553 ± 0.095
4.515GlyLys: 4.515 ± 0.088
5.739GlyLeu: 5.739 ± 0.113
1.138GlyMet: 1.138 ± 0.045
2.166GlyAsn: 2.166 ± 0.073
0.648GlyPro: 0.648 ± 0.033
1.533GlyGln: 1.533 ± 0.056
1.768GlyArg: 1.768 ± 0.061
3.464GlySer: 3.464 ± 0.099
2.423GlyThr: 2.423 ± 0.103
4.743GlyVal: 4.743 ± 0.115
0.346GlyTrp: 0.346 ± 0.028
2.159GlyTyr: 2.159 ± 0.081
0.0GlyXaa: 0.0 ± 0.0
His
1.053HisAla: 1.053 ± 0.052
0.305HisCys: 0.305 ± 0.023
0.594HisAsp: 0.594 ± 0.035
0.973HisGlu: 0.973 ± 0.047
1.525HisPhe: 1.525 ± 0.056
0.833HisGly: 0.833 ± 0.04
0.377HisHis: 0.377 ± 0.026
1.583HisIle: 1.583 ± 0.057
1.655HisLys: 1.655 ± 0.052
2.017HisLeu: 2.017 ± 0.056
0.271HisMet: 0.271 ± 0.023
0.865HisAsn: 0.865 ± 0.037
0.632HisPro: 0.632 ± 0.039
0.574HisGln: 0.574 ± 0.032
0.544HisArg: 0.544 ± 0.03
1.283HisSer: 1.283 ± 0.047
0.931HisThr: 0.931 ± 0.041
0.388HisVal: 0.388 ± 0.025
0.122HisTrp: 0.122 ± 0.016
0.73HisTyr: 0.73 ± 0.037
0.0HisXaa: 0.0 ± 0.0
Ile
6.403IleAla: 6.403 ± 0.125
1.057IleCys: 1.057 ± 0.05
4.12IleAsp: 4.12 ± 0.096
4.824IleGlu: 4.824 ± 0.112
4.399IlePhe: 4.399 ± 0.112
4.196IleGly: 4.196 ± 0.092
1.242IleHis: 1.242 ± 0.047
6.276IleIle: 6.276 ± 0.125
7.304IleLys: 7.304 ± 0.141
8.006IleLeu: 8.006 ± 0.15
1.409IleMet: 1.409 ± 0.058
4.39IleAsn: 4.39 ± 0.111
2.046IlePro: 2.046 ± 0.063
2.521IleGln: 2.521 ± 0.069
2.114IleArg: 2.114 ± 0.065
5.669IleSer: 5.669 ± 0.111
3.456IleThr: 3.456 ± 0.094
3.982IleVal: 3.982 ± 0.102
0.481IleTrp: 0.481 ± 0.032
2.748IleTyr: 2.748 ± 0.069
0.0IleXaa: 0.0 ± 0.0
Lys
8.203LysAla: 8.203 ± 0.134
0.625LysCys: 0.625 ± 0.035
6.159LysAsp: 6.159 ± 0.112
8.892LysGlu: 8.892 ± 0.166
3.451LysPhe: 3.451 ± 0.084
4.639LysGly: 4.639 ± 0.106
1.748LysHis: 1.748 ± 0.064
7.385LysIle: 7.385 ± 0.151
7.658LysLys: 7.658 ± 0.127
9.397LysLeu: 9.397 ± 0.165
1.979LysMet: 1.979 ± 0.052
6.525LysAsn: 6.525 ± 0.125
2.48LysPro: 2.48 ± 0.071
3.65LysGln: 3.65 ± 0.09
3.038LysArg: 3.038 ± 0.077
5.535LysSer: 5.535 ± 0.106
4.103LysThr: 4.103 ± 0.083
4.226LysVal: 4.226 ± 0.091
0.433LysTrp: 0.433 ± 0.029
2.215LysTyr: 2.215 ± 0.068
0.0LysXaa: 0.0 ± 0.0
Leu
9.388LeuAla: 9.388 ± 0.144
1.848LeuCys: 1.848 ± 0.062
6.274LeuAsp: 6.274 ± 0.113
8.878LeuGlu: 8.878 ± 0.177
6.037LeuPhe: 6.037 ± 0.128
6.57LeuGly: 6.57 ± 0.132
1.886LeuHis: 1.886 ± 0.061
7.875LeuIle: 7.875 ± 0.148
11.414LeuLys: 11.414 ± 0.166
10.732LeuLeu: 10.732 ± 0.189
2.15LeuMet: 2.15 ± 0.063
6.599LeuAsn: 6.599 ± 0.132
3.22LeuPro: 3.22 ± 0.077
3.731LeuGln: 3.731 ± 0.078
3.799LeuArg: 3.799 ± 0.087
9.556LeuSer: 9.556 ± 0.136
3.819LeuThr: 3.819 ± 0.108
5.658LeuVal: 5.658 ± 0.123
0.669LeuTrp: 0.669 ± 0.033
3.544LeuTyr: 3.544 ± 0.079
0.0LeuXaa: 0.0 ± 0.0
Met
1.463MetAla: 1.463 ± 0.056
0.215MetCys: 0.215 ± 0.018
0.887MetAsp: 0.887 ± 0.047
0.736MetGlu: 0.736 ± 0.037
0.854MetPhe: 0.854 ± 0.039
1.303MetGly: 1.303 ± 0.05
0.332MetHis: 0.332 ± 0.023
1.703MetIle: 1.703 ± 0.062
2.078MetLys: 2.078 ± 0.053
2.48MetLeu: 2.48 ± 0.06
0.533MetMet: 0.533 ± 0.034
1.202MetAsn: 1.202 ± 0.043
1.014MetPro: 1.014 ± 0.039
1.425MetGln: 1.425 ± 0.046
0.799MetArg: 0.799 ± 0.038
1.552MetSer: 1.552 ± 0.052
0.603MetThr: 0.603 ± 0.036
0.921MetVal: 0.921 ± 0.041
0.117MetTrp: 0.117 ± 0.016
0.468MetTyr: 0.468 ± 0.028
0.0MetXaa: 0.0 ± 0.0
Asn
5.104AsnAla: 5.104 ± 0.111
0.44AsnCys: 0.44 ± 0.032
2.848AsnAsp: 2.848 ± 0.082
4.971AsnGlu: 4.971 ± 0.127
3.473AsnPhe: 3.473 ± 0.103
2.624AsnGly: 2.624 ± 0.079
0.775AsnHis: 0.775 ± 0.038
4.298AsnIle: 4.298 ± 0.096
4.226AsnLys: 4.226 ± 0.093
6.777AsnLeu: 6.777 ± 0.119
0.818AsnMet: 0.818 ± 0.043
2.538AsnAsn: 2.538 ± 0.115
1.981AsnPro: 1.981 ± 0.062
1.703AsnGln: 1.703 ± 0.069
1.21AsnArg: 1.21 ± 0.048
3.566AsnSer: 3.566 ± 0.108
3.189AsnThr: 3.189 ± 0.105
2.507AsnVal: 2.507 ± 0.071
0.264AsnTrp: 0.264 ± 0.022
1.994AsnTyr: 1.994 ± 0.067
0.0AsnXaa: 0.0 ± 0.0
Pro
1.658ProAla: 1.658 ± 0.061
0.337ProCys: 0.337 ± 0.025
1.114ProAsp: 1.114 ± 0.05
1.369ProGlu: 1.369 ± 0.058
1.786ProPhe: 1.786 ± 0.055
0.926ProGly: 0.926 ± 0.044
0.601ProHis: 0.601 ± 0.035
1.945ProIle: 1.945 ± 0.065
2.52ProLys: 2.52 ± 0.074
3.06ProLeu: 3.06 ± 0.069
0.508ProMet: 0.508 ± 0.035
1.646ProAsn: 1.646 ± 0.054
0.682ProPro: 0.682 ± 0.035
1.159ProGln: 1.159 ± 0.049
0.863ProArg: 0.863 ± 0.038
2.137ProSer: 2.137 ± 0.065
1.14ProThr: 1.14 ± 0.049
1.303ProVal: 1.303 ± 0.048
0.214ProTrp: 0.214 ± 0.019
1.186ProTyr: 1.186 ± 0.044
0.0ProXaa: 0.0 ± 0.0
Gln
2.724GlnAla: 2.724 ± 0.076
0.253GlnCys: 0.253 ± 0.024
2.024GlnAsp: 2.024 ± 0.062
2.737GlnGlu: 2.737 ± 0.081
1.235GlnPhe: 1.235 ± 0.049
2.137GlnGly: 2.137 ± 0.068
0.468GlnHis: 0.468 ± 0.03
3.279GlnIle: 3.279 ± 0.075
4.135GlnLys: 4.135 ± 0.099
2.197GlnLeu: 2.197 ± 0.062
0.804GlnMet: 0.804 ± 0.04
3.446GlnAsn: 3.446 ± 0.089
0.564GlnPro: 0.564 ± 0.03
0.817GlnGln: 0.817 ± 0.045
1.438GlnArg: 1.438 ± 0.055
3.047GlnSer: 3.047 ± 0.081
1.786GlnThr: 1.786 ± 0.065
1.54GlnVal: 1.54 ± 0.049
0.172GlnTrp: 0.172 ± 0.019
0.791GlnTyr: 0.791 ± 0.042
0.0GlnXaa: 0.0 ± 0.0
Arg
2.857ArgAla: 2.857 ± 0.09
0.275ArgCys: 0.275 ± 0.021
1.384ArgAsp: 1.384 ± 0.056
1.886ArgGlu: 1.886 ± 0.061
2.157ArgPhe: 2.157 ± 0.066
1.716ArgGly: 1.716 ± 0.068
0.524ArgHis: 0.524 ± 0.031
2.588ArgIle: 2.588 ± 0.069
2.493ArgLys: 2.493 ± 0.08
3.891ArgLeu: 3.891 ± 0.088
0.721ArgMet: 0.721 ± 0.035
1.359ArgAsn: 1.359 ± 0.049
0.738ArgPro: 0.738 ± 0.036
1.127ArgGln: 1.127 ± 0.045
1.059ArgArg: 1.059 ± 0.048
1.692ArgSer: 1.692 ± 0.056
1.33ArgThr: 1.33 ± 0.054
2.195ArgVal: 2.195 ± 0.064
0.187ArgTrp: 0.187 ± 0.018
1.448ArgTyr: 1.448 ± 0.06
0.0ArgXaa: 0.0 ± 0.0
Ser
4.567SerAla: 4.567 ± 0.094
0.66SerCys: 0.66 ± 0.034
2.907SerAsp: 2.907 ± 0.075
4.063SerGlu: 4.063 ± 0.096
5.289SerPhe: 5.289 ± 0.119
4.099SerGly: 4.099 ± 0.124
1.091SerHis: 1.091 ± 0.046
4.883SerIle: 4.883 ± 0.103
6.222SerLys: 6.222 ± 0.119
8.673SerLeu: 8.673 ± 0.123
1.353SerMet: 1.353 ± 0.051
3.309SerAsn: 3.309 ± 0.089
1.673SerPro: 1.673 ± 0.057
2.294SerGln: 2.294 ± 0.063
1.99SerArg: 1.99 ± 0.064
5.054SerSer: 5.054 ± 0.118
2.936SerThr: 2.936 ± 0.074
4.51SerVal: 4.51 ± 0.108
0.492SerTrp: 0.492 ± 0.03
2.597SerTyr: 2.597 ± 0.071
0.0SerXaa: 0.0 ± 0.0
Thr
2.83ThrAla: 2.83 ± 0.084
0.492ThrCys: 0.492 ± 0.031
1.54ThrAsp: 1.54 ± 0.054
1.753ThrGlu: 1.753 ± 0.056
1.927ThrPhe: 1.927 ± 0.079
2.34ThrGly: 2.34 ± 0.082
1.19ThrHis: 1.19 ± 0.051
2.94ThrIle: 2.94 ± 0.09
3.322ThrLys: 3.322 ± 0.084
5.449ThrLeu: 5.449 ± 0.128
0.861ThrMet: 0.861 ± 0.041
2.358ThrAsn: 2.358 ± 0.116
1.866ThrPro: 1.866 ± 0.056
2.785ThrGln: 2.785 ± 0.083
1.57ThrArg: 1.57 ± 0.053
3.182ThrSer: 3.182 ± 0.087
2.04ThrThr: 2.04 ± 0.079
0.741ThrVal: 0.741 ± 0.043
0.303ThrTrp: 0.303 ± 0.024
1.531ThrTyr: 1.531 ± 0.058
0.0ThrXaa: 0.0 ± 0.0
Val
4.013ValAla: 4.013 ± 0.09
0.833ValCys: 0.833 ± 0.039
2.665ValAsp: 2.665 ± 0.073
2.993ValGlu: 2.993 ± 0.071
3.641ValPhe: 3.641 ± 0.113
3.349ValGly: 3.349 ± 0.091
0.738ValHis: 0.738 ± 0.037
4.045ValIle: 4.045 ± 0.105
4.278ValLys: 4.278 ± 0.086
6.656ValLeu: 6.656 ± 0.121
1.193ValMet: 1.193 ± 0.042
2.387ValAsn: 2.387 ± 0.068
1.574ValPro: 1.574 ± 0.062
1.712ValGln: 1.712 ± 0.055
1.768ValArg: 1.768 ± 0.057
3.708ValSer: 3.708 ± 0.094
1.362ValThr: 1.362 ± 0.059
3.451ValVal: 3.451 ± 0.101
0.35ValTrp: 0.35 ± 0.026
1.909ValTyr: 1.909 ± 0.057
0.0ValXaa: 0.0 ± 0.0
Trp
0.494TrpAla: 0.494 ± 0.032
0.092TrpCys: 0.092 ± 0.011
0.341TrpAsp: 0.341 ± 0.025
0.267TrpGlu: 0.267 ± 0.023
0.325TrpPhe: 0.325 ± 0.025
0.479TrpGly: 0.479 ± 0.033
0.19TrpHis: 0.19 ± 0.02
0.488TrpIle: 0.488 ± 0.032
0.291TrpLys: 0.291 ± 0.021
0.924TrpLeu: 0.924 ± 0.039
0.117TrpMet: 0.117 ± 0.015
0.251TrpAsn: 0.251 ± 0.023
0.068TrpPro: 0.068 ± 0.011
0.461TrpGln: 0.461 ± 0.031
0.215TrpArg: 0.215 ± 0.02
0.307TrpSer: 0.307 ± 0.023
0.174TrpThr: 0.174 ± 0.019
0.37TrpVal: 0.37 ± 0.024
0.126TrpTrp: 0.126 ± 0.014
0.258TrpTyr: 0.258 ± 0.022
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.803TyrAla: 2.803 ± 0.082
0.359TyrCys: 0.359 ± 0.027
2.001TyrAsp: 2.001 ± 0.065
3.234TyrGlu: 3.234 ± 0.077
2.373TyrPhe: 2.373 ± 0.077
1.96TyrGly: 1.96 ± 0.073
0.682TyrHis: 0.682 ± 0.035
2.381TyrIle: 2.381 ± 0.077
3.44TyrLys: 3.44 ± 0.082
3.526TyrLeu: 3.526 ± 0.086
0.687TyrMet: 0.687 ± 0.032
1.621TyrAsn: 1.621 ± 0.06
1.141TyrPro: 1.141 ± 0.049
1.33TyrGln: 1.33 ± 0.049
1.03TyrArg: 1.03 ± 0.043
1.99TyrSer: 1.99 ± 0.066
1.909TyrThr: 1.909 ± 0.076
1.427TyrVal: 1.427 ± 0.054
0.21TyrTrp: 0.21 ± 0.02
1.303TyrTyr: 1.303 ± 0.06
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 1777 proteins (557218 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