Amino acid dipepetide frequency for Clostridiales bacterium S5-A14a

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
5.511AlaAla: 5.511 ± 0.154
0.894AlaCys: 0.894 ± 0.051
4.047AlaAsp: 4.047 ± 0.092
4.738AlaGlu: 4.738 ± 0.134
3.0AlaPhe: 3.0 ± 0.094
5.11AlaGly: 5.11 ± 0.135
1.036AlaHis: 1.036 ± 0.054
6.244AlaIle: 6.244 ± 0.15
5.489AlaLys: 5.489 ± 0.157
6.336AlaLeu: 6.336 ± 0.173
2.318AlaMet: 2.318 ± 0.081
2.826AlaAsn: 2.826 ± 0.103
1.814AlaPro: 1.814 ± 0.074
1.803AlaGln: 1.803 ± 0.073
2.792AlaArg: 2.792 ± 0.092
3.855AlaSer: 3.855 ± 0.109
3.499AlaThr: 3.499 ± 0.114
5.134AlaVal: 5.134 ± 0.135
0.461AlaTrp: 0.461 ± 0.04
2.365AlaTyr: 2.365 ± 0.086
0.0AlaXaa: 0.0 ± 0.0
Cys
0.736CysAla: 0.736 ± 0.043
0.206CysCys: 0.206 ± 0.025
0.651CysAsp: 0.651 ± 0.039
0.828CysGlu: 0.828 ± 0.045
0.512CysPhe: 0.512 ± 0.037
1.221CysGly: 1.221 ± 0.065
0.287CysHis: 0.287 ± 0.029
0.91CysIle: 0.91 ± 0.051
0.765CysLys: 0.765 ± 0.048
0.841CysLeu: 0.841 ± 0.044
0.24CysMet: 0.24 ± 0.023
0.525CysAsn: 0.525 ± 0.04
0.488CysPro: 0.488 ± 0.045
0.261CysGln: 0.261 ± 0.026
0.459CysArg: 0.459 ± 0.033
0.712CysSer: 0.712 ± 0.044
0.493CysThr: 0.493 ± 0.042
0.733CysVal: 0.733 ± 0.043
0.098CysTrp: 0.098 ± 0.016
0.424CysTyr: 0.424 ± 0.03
0.0CysXaa: 0.0 ± 0.0
Asp
3.965AspAla: 3.965 ± 0.113
0.662AspCys: 0.662 ± 0.045
3.836AspAsp: 3.836 ± 0.13
5.458AspGlu: 5.458 ± 0.159
3.188AspPhe: 3.188 ± 0.097
4.377AspGly: 4.377 ± 0.12
0.889AspHis: 0.889 ± 0.059
5.368AspIle: 5.368 ± 0.133
5.099AspLys: 5.099 ± 0.147
5.01AspLeu: 5.01 ± 0.115
1.851AspMet: 1.851 ± 0.075
2.985AspAsn: 2.985 ± 0.085
1.888AspPro: 1.888 ± 0.07
1.247AspGln: 1.247 ± 0.052
2.489AspArg: 2.489 ± 0.091
3.436AspSer: 3.436 ± 0.117
2.721AspThr: 2.721 ± 0.069
4.348AspVal: 4.348 ± 0.114
0.43AspTrp: 0.43 ± 0.035
2.613AspTyr: 2.613 ± 0.091
0.0AspXaa: 0.0 ± 0.0
Glu
5.046GluAla: 5.046 ± 0.15
0.585GluCys: 0.585 ± 0.041
4.656GluAsp: 4.656 ± 0.119
6.333GluGlu: 6.333 ± 0.171
2.724GluPhe: 2.724 ± 0.087
4.424GluGly: 4.424 ± 0.136
1.186GluHis: 1.186 ± 0.068
6.882GluIle: 6.882 ± 0.16
7.43GluLys: 7.43 ± 0.192
6.286GluLeu: 6.286 ± 0.139
2.273GluMet: 2.273 ± 0.091
4.633GluAsn: 4.633 ± 0.125
1.735GluPro: 1.735 ± 0.069
1.904GluGln: 1.904 ± 0.073
3.061GluArg: 3.061 ± 0.104
3.923GluSer: 3.923 ± 0.109
3.23GluThr: 3.23 ± 0.101
4.575GluVal: 4.575 ± 0.139
0.519GluTrp: 0.519 ± 0.042
2.845GluTyr: 2.845 ± 0.099
0.0GluXaa: 0.0 ± 0.0
Phe
2.913PheAla: 2.913 ± 0.098
0.622PheCys: 0.622 ± 0.038
2.771PheAsp: 2.771 ± 0.073
3.156PheGlu: 3.156 ± 0.093
2.028PhePhe: 2.028 ± 0.093
3.0PheGly: 3.0 ± 0.1
0.654PheHis: 0.654 ± 0.04
3.367PheIle: 3.367 ± 0.137
2.995PheLys: 2.995 ± 0.086
3.718PheLeu: 3.718 ± 0.122
1.21PheMet: 1.21 ± 0.068
1.875PheAsn: 1.875 ± 0.071
1.318PhePro: 1.318 ± 0.059
1.007PheGln: 1.007 ± 0.053
1.59PheArg: 1.59 ± 0.062
3.159PheSer: 3.159 ± 0.092
2.146PheThr: 2.146 ± 0.084
3.272PheVal: 3.272 ± 0.103
0.332PheTrp: 0.332 ± 0.034
1.506PheTyr: 1.506 ± 0.07
0.0PheXaa: 0.0 ± 0.0
Gly
4.775GlyAla: 4.775 ± 0.114
0.91GlyCys: 0.91 ± 0.056
3.958GlyAsp: 3.958 ± 0.112
4.664GlyGlu: 4.664 ± 0.114
3.267GlyPhe: 3.267 ± 0.109
5.289GlyGly: 5.289 ± 0.149
1.292GlyHis: 1.292 ± 0.062
6.491GlyIle: 6.491 ± 0.154
5.932GlyLys: 5.932 ± 0.145
5.735GlyLeu: 5.735 ± 0.138
2.141GlyMet: 2.141 ± 0.078
3.193GlyAsn: 3.193 ± 0.093
1.44GlyPro: 1.44 ± 0.062
1.716GlyGln: 1.716 ± 0.07
3.18GlyArg: 3.18 ± 0.103
4.356GlySer: 4.356 ± 0.132
3.726GlyThr: 3.726 ± 0.096
4.978GlyVal: 4.978 ± 0.13
0.57GlyTrp: 0.57 ± 0.052
2.998GlyTyr: 2.998 ± 0.106
0.0GlyXaa: 0.0 ± 0.0
His
0.931HisAla: 0.931 ± 0.053
0.216HisCys: 0.216 ± 0.027
0.954HisAsp: 0.954 ± 0.067
1.028HisGlu: 1.028 ± 0.056
0.704HisPhe: 0.704 ± 0.042
1.279HisGly: 1.279 ± 0.065
0.366HisHis: 0.366 ± 0.058
1.326HisIle: 1.326 ± 0.051
1.11HisLys: 1.11 ± 0.058
1.331HisLeu: 1.331 ± 0.068
0.49HisMet: 0.49 ± 0.038
0.707HisAsn: 0.707 ± 0.041
0.757HisPro: 0.757 ± 0.047
0.435HisGln: 0.435 ± 0.039
0.773HisArg: 0.773 ± 0.052
0.941HisSer: 0.941 ± 0.047
0.886HisThr: 0.886 ± 0.049
0.96HisVal: 0.96 ± 0.058
0.166HisTrp: 0.166 ± 0.023
0.622HisTyr: 0.622 ± 0.039
0.0HisXaa: 0.0 ± 0.0
Ile
6.528IleAla: 6.528 ± 0.143
1.102IleCys: 1.102 ± 0.06
5.54IleAsp: 5.54 ± 0.128
6.196IleGlu: 6.196 ± 0.159
3.752IlePhe: 3.752 ± 0.122
5.756IleGly: 5.756 ± 0.136
1.21IleHis: 1.21 ± 0.068
6.974IleIle: 6.974 ± 0.187
6.396IleLys: 6.396 ± 0.134
7.686IleLeu: 7.686 ± 0.182
2.502IleMet: 2.502 ± 0.084
4.047IleAsn: 4.047 ± 0.091
3.103IlePro: 3.103 ± 0.103
1.861IleGln: 1.861 ± 0.075
3.364IleArg: 3.364 ± 0.102
6.383IleSer: 6.383 ± 0.141
4.269IleThr: 4.269 ± 0.113
5.54IleVal: 5.54 ± 0.138
0.538IleTrp: 0.538 ± 0.037
2.927IleTyr: 2.927 ± 0.083
0.0IleXaa: 0.0 ± 0.0
Lys
5.405LysAla: 5.405 ± 0.181
0.638LysCys: 0.638 ± 0.043
5.447LysAsp: 5.447 ± 0.142
6.618LysGlu: 6.618 ± 0.178
2.668LysPhe: 2.668 ± 0.088
4.651LysGly: 4.651 ± 0.125
1.205LysHis: 1.205 ± 0.06
7.164LysIle: 7.164 ± 0.156
7.058LysLys: 7.058 ± 0.176
6.573LysLeu: 6.573 ± 0.128
2.618LysMet: 2.618 ± 0.084
4.756LysAsn: 4.756 ± 0.127
2.579LysPro: 2.579 ± 0.098
2.204LysGln: 2.204 ± 0.084
3.259LysArg: 3.259 ± 0.094
4.741LysSer: 4.741 ± 0.131
4.604LysThr: 4.604 ± 0.109
5.199LysVal: 5.199 ± 0.127
0.514LysTrp: 0.514 ± 0.038
3.359LysTyr: 3.359 ± 0.093
0.0LysXaa: 0.0 ± 0.0
Leu
6.244LeuAla: 6.244 ± 0.137
1.031LeuCys: 1.031 ± 0.059
5.379LeuAsp: 5.379 ± 0.123
6.28LeuGlu: 6.28 ± 0.149
3.507LeuPhe: 3.507 ± 0.122
6.096LeuGly: 6.096 ± 0.148
1.292LeuHis: 1.292 ± 0.067
7.013LeuIle: 7.013 ± 0.189
7.148LeuLys: 7.148 ± 0.173
7.322LeuLeu: 7.322 ± 0.191
2.697LeuMet: 2.697 ± 0.094
4.103LeuAsn: 4.103 ± 0.111
3.082LeuPro: 3.082 ± 0.097
1.935LeuGln: 1.935 ± 0.074
3.541LeuArg: 3.541 ± 0.102
6.349LeuSer: 6.349 ± 0.146
4.221LeuThr: 4.221 ± 0.097
5.5LeuVal: 5.5 ± 0.126
0.604LeuTrp: 0.604 ± 0.041
2.732LeuTyr: 2.732 ± 0.083
0.0LeuXaa: 0.0 ± 0.0
Met
2.526MetAla: 2.526 ± 0.076
0.293MetCys: 0.293 ± 0.027
1.798MetAsp: 1.798 ± 0.062
1.988MetGlu: 1.988 ± 0.079
0.999MetPhe: 0.999 ± 0.058
2.283MetGly: 2.283 ± 0.075
0.406MetHis: 0.406 ± 0.036
2.449MetIle: 2.449 ± 0.093
2.391MetLys: 2.391 ± 0.084
2.581MetLeu: 2.581 ± 0.079
0.92MetMet: 0.92 ± 0.052
1.548MetAsn: 1.548 ± 0.059
1.289MetPro: 1.289 ± 0.058
0.904MetGln: 0.904 ± 0.054
1.292MetArg: 1.292 ± 0.06
2.035MetSer: 2.035 ± 0.08
1.68MetThr: 1.68 ± 0.067
1.817MetVal: 1.817 ± 0.078
0.192MetTrp: 0.192 ± 0.023
0.77MetTyr: 0.77 ± 0.045
0.0MetXaa: 0.0 ± 0.0
Asn
3.019AsnAla: 3.019 ± 0.098
0.535AsnCys: 0.535 ± 0.039
2.584AsnAsp: 2.584 ± 0.089
3.098AsnGlu: 3.098 ± 0.099
2.286AsnPhe: 2.286 ± 0.075
3.343AsnGly: 3.343 ± 0.095
0.765AsnHis: 0.765 ± 0.042
4.356AsnIle: 4.356 ± 0.103
4.303AsnLys: 4.303 ± 0.123
4.691AsnLeu: 4.691 ± 0.109
1.413AsnMet: 1.413 ± 0.063
2.378AsnAsn: 2.378 ± 0.093
2.144AsnPro: 2.144 ± 0.079
1.395AsnGln: 1.395 ± 0.062
1.954AsnArg: 1.954 ± 0.071
2.903AsnSer: 2.903 ± 0.099
2.307AsnThr: 2.307 ± 0.071
3.188AsnVal: 3.188 ± 0.094
0.446AsnTrp: 0.446 ± 0.035
1.996AsnTyr: 1.996 ± 0.073
0.0AsnXaa: 0.0 ± 0.0
Pro
1.893ProAla: 1.893 ± 0.079
0.414ProCys: 0.414 ± 0.033
2.209ProAsp: 2.209 ± 0.087
2.8ProGlu: 2.8 ± 0.089
1.358ProPhe: 1.358 ± 0.063
2.344ProGly: 2.344 ± 0.101
0.609ProHis: 0.609 ± 0.04
2.616ProIle: 2.616 ± 0.07
2.296ProLys: 2.296 ± 0.071
2.587ProLeu: 2.587 ± 0.086
0.918ProMet: 0.918 ± 0.05
1.458ProAsn: 1.458 ± 0.062
0.788ProPro: 0.788 ± 0.049
0.894ProGln: 0.894 ± 0.051
1.099ProArg: 1.099 ± 0.05
1.985ProSer: 1.985 ± 0.064
1.643ProThr: 1.643 ± 0.069
2.492ProVal: 2.492 ± 0.092
0.301ProTrp: 0.301 ± 0.027
1.21ProTyr: 1.21 ± 0.053
0.0ProXaa: 0.0 ± 0.0
Gln
1.672GlnAla: 1.672 ± 0.066
0.232GlnCys: 0.232 ± 0.028
1.287GlnAsp: 1.287 ± 0.061
1.859GlnGlu: 1.859 ± 0.083
0.968GlnPhe: 0.968 ± 0.05
1.693GlnGly: 1.693 ± 0.062
0.343GlnHis: 0.343 ± 0.03
2.312GlnIle: 2.312 ± 0.081
2.162GlnLys: 2.162 ± 0.078
2.041GlnLeu: 2.041 ± 0.073
0.828GlnMet: 0.828 ± 0.042
1.637GlnAsn: 1.637 ± 0.071
0.638GlnPro: 0.638 ± 0.043
0.67GlnGln: 0.67 ± 0.04
1.181GlnArg: 1.181 ± 0.065
1.54GlnSer: 1.54 ± 0.064
1.3GlnThr: 1.3 ± 0.06
1.537GlnVal: 1.537 ± 0.064
0.195GlnTrp: 0.195 ± 0.024
0.873GlnTyr: 0.873 ± 0.043
0.0GlnXaa: 0.0 ± 0.0
Arg
2.608ArgAla: 2.608 ± 0.095
0.435ArgCys: 0.435 ± 0.034
2.513ArgAsp: 2.513 ± 0.08
3.491ArgGlu: 3.491 ± 0.101
1.603ArgPhe: 1.603 ± 0.066
2.697ArgGly: 2.697 ± 0.085
0.749ArgHis: 0.749 ± 0.051
3.38ArgIle: 3.38 ± 0.096
3.425ArgLys: 3.425 ± 0.096
3.583ArgLeu: 3.583 ± 0.1
1.242ArgMet: 1.242 ± 0.056
2.225ArgAsn: 2.225 ± 0.088
1.26ArgPro: 1.26 ± 0.059
1.215ArgGln: 1.215 ± 0.055
2.207ArgArg: 2.207 ± 0.111
2.033ArgSer: 2.033 ± 0.075
1.912ArgThr: 1.912 ± 0.07
2.523ArgVal: 2.523 ± 0.086
0.285ArgTrp: 0.285 ± 0.028
1.558ArgTyr: 1.558 ± 0.069
0.0ArgXaa: 0.0 ± 0.0
Ser
4.253SerAla: 4.253 ± 0.106
0.554SerCys: 0.554 ± 0.034
3.902SerAsp: 3.902 ± 0.1
4.669SerGlu: 4.669 ± 0.138
2.716SerPhe: 2.716 ± 0.1
5.036SerGly: 5.036 ± 0.147
0.978SerHis: 0.978 ± 0.047
5.215SerIle: 5.215 ± 0.142
5.26SerLys: 5.26 ± 0.132
5.46SerLeu: 5.46 ± 0.143
1.888SerMet: 1.888 ± 0.075
2.887SerAsn: 2.887 ± 0.097
1.772SerPro: 1.772 ± 0.07
1.803SerGln: 1.803 ± 0.066
2.497SerArg: 2.497 ± 0.09
4.029SerSer: 4.029 ± 0.129
3.082SerThr: 3.082 ± 0.097
4.026SerVal: 4.026 ± 0.103
0.388SerTrp: 0.388 ± 0.033
2.225SerTyr: 2.225 ± 0.076
0.0SerXaa: 0.0 ± 0.0
Thr
3.588ThrAla: 3.588 ± 0.103
0.554ThrCys: 0.554 ± 0.035
3.006ThrAsp: 3.006 ± 0.092
3.24ThrGlu: 3.24 ± 0.098
2.144ThrPhe: 2.144 ± 0.067
4.1ThrGly: 4.1 ± 0.114
0.857ThrHis: 0.857 ± 0.052
4.116ThrIle: 4.116 ± 0.117
3.623ThrLys: 3.623 ± 0.107
4.511ThrLeu: 4.511 ± 0.12
1.371ThrMet: 1.371 ± 0.053
1.89ThrAsn: 1.89 ± 0.071
2.146ThrPro: 2.146 ± 0.079
1.163ThrGln: 1.163 ± 0.057
1.722ThrArg: 1.722 ± 0.055
2.94ThrSer: 2.94 ± 0.097
2.621ThrThr: 2.621 ± 0.098
4.013ThrVal: 4.013 ± 0.107
0.345ThrTrp: 0.345 ± 0.03
1.835ThrTyr: 1.835 ± 0.067
0.0ThrXaa: 0.0 ± 0.0
Val
4.891ValAla: 4.891 ± 0.12
0.939ValCys: 0.939 ± 0.048
4.509ValAsp: 4.509 ± 0.122
4.78ValGlu: 4.78 ± 0.128
3.011ValPhe: 3.011 ± 0.095
4.651ValGly: 4.651 ± 0.11
1.044ValHis: 1.044 ± 0.06
5.779ValIle: 5.779 ± 0.118
5.057ValLys: 5.057 ± 0.12
5.964ValLeu: 5.964 ± 0.131
1.991ValMet: 1.991 ± 0.07
3.156ValAsn: 3.156 ± 0.086
2.315ValPro: 2.315 ± 0.073
1.342ValGln: 1.342 ± 0.061
2.584ValArg: 2.584 ± 0.099
4.669ValSer: 4.669 ± 0.127
3.367ValThr: 3.367 ± 0.094
4.714ValVal: 4.714 ± 0.131
0.409ValTrp: 0.409 ± 0.032
2.281ValTyr: 2.281 ± 0.081
0.0ValXaa: 0.0 ± 0.0
Trp
0.451TrpAla: 0.451 ± 0.031
0.084TrpCys: 0.084 ± 0.015
0.419TrpAsp: 0.419 ± 0.033
0.469TrpGlu: 0.469 ± 0.037
0.293TrpPhe: 0.293 ± 0.033
0.562TrpGly: 0.562 ± 0.042
0.169TrpHis: 0.169 ± 0.022
0.633TrpIle: 0.633 ± 0.046
0.517TrpLys: 0.517 ± 0.038
0.628TrpLeu: 0.628 ± 0.043
0.243TrpMet: 0.243 ± 0.026
0.411TrpAsn: 0.411 ± 0.034
0.219TrpPro: 0.219 ± 0.022
0.243TrpGln: 0.243 ± 0.024
0.29TrpArg: 0.29 ± 0.028
0.348TrpSer: 0.348 ± 0.032
0.322TrpThr: 0.322 ± 0.031
0.467TrpVal: 0.467 ± 0.042
0.076TrpTrp: 0.076 ± 0.018
0.311TrpTyr: 0.311 ± 0.039
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.318TyrAla: 2.318 ± 0.074
0.483TyrCys: 0.483 ± 0.04
2.391TyrAsp: 2.391 ± 0.084
2.558TyrGlu: 2.558 ± 0.096
1.914TyrPhe: 1.914 ± 0.074
2.697TyrGly: 2.697 ± 0.077
0.646TyrHis: 0.646 ± 0.045
3.08TyrIle: 3.08 ± 0.1
2.803TyrLys: 2.803 ± 0.097
3.193TyrLeu: 3.193 ± 0.097
1.007TyrMet: 1.007 ± 0.047
1.861TyrAsn: 1.861 ± 0.077
1.139TyrPro: 1.139 ± 0.051
0.962TyrGln: 0.962 ± 0.05
1.611TyrArg: 1.611 ± 0.062
2.304TyrSer: 2.304 ± 0.081
1.759TyrThr: 1.759 ± 0.078
2.439TyrVal: 2.439 ± 0.087
0.285TyrTrp: 0.285 ± 0.026
1.421TyrTyr: 1.421 ± 0.065
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 1151 proteins (379274 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