Amino acid dipepetide frequency for Cytophagaceae bacterium

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
11.443AlaAla: 11.443 ± 0.338
0.876AlaCys: 0.876 ± 0.057
5.627AlaAsp: 5.627 ± 0.165
6.263AlaGlu: 6.263 ± 0.196
3.722AlaPhe: 3.722 ± 0.132
7.029AlaGly: 7.029 ± 0.178
2.172AlaHis: 2.172 ± 0.118
4.751AlaIle: 4.751 ± 0.137
4.649AlaLys: 4.649 ± 0.152
9.902AlaLeu: 9.902 ± 0.224
2.126AlaMet: 2.126 ± 0.106
3.335AlaAsn: 3.335 ± 0.133
4.206AlaPro: 4.206 ± 0.18
5.092AlaGln: 5.092 ± 0.145
4.972AlaArg: 4.972 ± 0.143
5.382AlaSer: 5.382 ± 0.158
6.107AlaThr: 6.107 ± 0.182
6.416AlaVal: 6.416 ± 0.183
1.033AlaTrp: 1.033 ± 0.085
3.104AlaTyr: 3.104 ± 0.136
0.005AlaXaa: 0.005 ± 0.004
Cys
0.627CysAla: 0.627 ± 0.055
0.115CysCys: 0.115 ± 0.026
0.498CysAsp: 0.498 ± 0.051
0.392CysGlu: 0.392 ± 0.039
0.374CysPhe: 0.374 ± 0.037
0.743CysGly: 0.743 ± 0.063
0.231CysHis: 0.231 ± 0.029
0.452CysIle: 0.452 ± 0.044
0.318CysLys: 0.318 ± 0.039
0.946CysLeu: 0.946 ± 0.062
0.161CysMet: 0.161 ± 0.029
0.272CysAsn: 0.272 ± 0.037
0.48CysPro: 0.48 ± 0.048
0.332CysGln: 0.332 ± 0.041
0.47CysArg: 0.47 ± 0.046
0.346CysSer: 0.346 ± 0.035
0.512CysThr: 0.512 ± 0.042
0.364CysVal: 0.364 ± 0.043
0.092CysTrp: 0.092 ± 0.021
0.281CysTyr: 0.281 ± 0.039
0.0CysXaa: 0.0 ± 0.0
Asp
4.681AspAla: 4.681 ± 0.14
0.415AspCys: 0.415 ± 0.047
2.435AspAsp: 2.435 ± 0.098
3.385AspGlu: 3.385 ± 0.128
3.03AspPhe: 3.03 ± 0.115
3.404AspGly: 3.404 ± 0.13
0.959AspHis: 0.959 ± 0.065
2.975AspIle: 2.975 ± 0.122
3.122AspLys: 3.122 ± 0.131
5.221AspLeu: 5.221 ± 0.147
1.042AspMet: 1.042 ± 0.08
2.103AspAsn: 2.103 ± 0.111
2.016AspPro: 2.016 ± 0.102
1.988AspGln: 1.988 ± 0.105
2.56AspArg: 2.56 ± 0.104
2.841AspSer: 2.841 ± 0.122
2.73AspThr: 2.73 ± 0.11
3.381AspVal: 3.381 ± 0.127
0.844AspTrp: 0.844 ± 0.07
2.518AspTyr: 2.518 ± 0.11
0.0AspXaa: 0.0 ± 0.0
Glu
6.005GluAla: 6.005 ± 0.173
0.36GluCys: 0.36 ± 0.035
2.306GluAsp: 2.306 ± 0.101
3.699GluGlu: 3.699 ± 0.171
2.426GluPhe: 2.426 ± 0.105
3.344GluGly: 3.344 ± 0.121
1.31GluHis: 1.31 ± 0.078
3.441GluIle: 3.441 ± 0.165
3.616GluLys: 3.616 ± 0.138
6.881GluLeu: 6.881 ± 0.197
1.273GluMet: 1.273 ± 0.076
2.255GluAsn: 2.255 ± 0.113
2.126GluPro: 2.126 ± 0.108
3.095GluGln: 3.095 ± 0.129
3.45GluArg: 3.45 ± 0.129
2.375GluSer: 2.375 ± 0.11
3.155GluThr: 3.155 ± 0.128
4.008GluVal: 4.008 ± 0.16
0.803GluTrp: 0.803 ± 0.062
2.103GluTyr: 2.103 ± 0.096
0.0GluXaa: 0.0 ± 0.0
Phe
3.814PheAla: 3.814 ± 0.151
0.434PheCys: 0.434 ± 0.039
2.772PheAsp: 2.772 ± 0.104
2.555PheGlu: 2.555 ± 0.126
2.375PhePhe: 2.375 ± 0.118
3.574PheGly: 3.574 ± 0.151
0.793PheHis: 0.793 ± 0.064
2.458PheIle: 2.458 ± 0.114
2.172PheLys: 2.172 ± 0.105
4.497PheLeu: 4.497 ± 0.169
0.955PheMet: 0.955 ± 0.063
1.992PheAsn: 1.992 ± 0.099
1.748PhePro: 1.748 ± 0.082
1.734PheGln: 1.734 ± 0.093
2.311PheArg: 2.311 ± 0.108
2.786PheSer: 2.786 ± 0.13
2.647PheThr: 2.647 ± 0.112
2.998PheVal: 2.998 ± 0.122
0.66PheTrp: 0.66 ± 0.057
1.67PheTyr: 1.67 ± 0.095
0.0PheXaa: 0.0 ± 0.0
Gly
5.678GlyAla: 5.678 ± 0.165
0.558GlyCys: 0.558 ± 0.056
3.201GlyAsp: 3.201 ± 0.126
3.736GlyGlu: 3.736 ± 0.171
3.224GlyPhe: 3.224 ± 0.124
5.11GlyGly: 5.11 ± 0.199
1.582GlyHis: 1.582 ± 0.083
3.911GlyIle: 3.911 ± 0.132
3.953GlyLys: 3.953 ± 0.157
7.592GlyLeu: 7.592 ± 0.194
1.481GlyMet: 1.481 ± 0.076
2.509GlyAsn: 2.509 ± 0.106
2.371GlyPro: 2.371 ± 0.122
3.395GlyGln: 3.395 ± 0.111
3.824GlyArg: 3.824 ± 0.144
3.754GlySer: 3.754 ± 0.139
4.248GlyThr: 4.248 ± 0.15
4.907GlyVal: 4.907 ± 0.155
0.922GlyTrp: 0.922 ± 0.067
2.998GlyTyr: 2.998 ± 0.131
0.0GlyXaa: 0.0 ± 0.0
His
1.859HisAla: 1.859 ± 0.099
0.249HisCys: 0.249 ± 0.035
1.148HisAsp: 1.148 ± 0.083
1.227HisGlu: 1.227 ± 0.07
1.061HisPhe: 1.061 ± 0.078
1.319HisGly: 1.319 ± 0.087
0.807HisHis: 0.807 ± 0.084
1.093HisIle: 1.093 ± 0.072
1.015HisLys: 1.015 ± 0.073
2.707HisLeu: 2.707 ± 0.13
0.341HisMet: 0.341 ± 0.044
0.77HisAsn: 0.77 ± 0.063
1.388HisPro: 1.388 ± 0.088
0.955HisGln: 0.955 ± 0.077
1.259HisArg: 1.259 ± 0.074
1.314HisSer: 1.314 ± 0.097
1.079HisThr: 1.079 ± 0.075
1.296HisVal: 1.296 ± 0.082
0.309HisTrp: 0.309 ± 0.039
0.973HisTyr: 0.973 ± 0.075
0.0HisXaa: 0.0 ± 0.0
Ile
4.82IleAla: 4.82 ± 0.147
0.627IleCys: 0.627 ± 0.05
2.813IleAsp: 2.813 ± 0.115
3.385IleGlu: 3.385 ± 0.114
2.297IlePhe: 2.297 ± 0.15
3.893IleGly: 3.893 ± 0.166
0.982IleHis: 0.982 ± 0.071
3.104IleIle: 3.104 ± 0.152
2.809IleLys: 2.809 ± 0.111
4.359IleLeu: 4.359 ± 0.17
0.941IleMet: 0.941 ± 0.064
2.011IleAsn: 2.011 ± 0.105
2.338IlePro: 2.338 ± 0.119
2.182IleGln: 2.182 ± 0.108
2.753IleArg: 2.753 ± 0.112
3.468IleSer: 3.468 ± 0.146
3.427IleThr: 3.427 ± 0.136
3.533IleVal: 3.533 ± 0.137
0.434IleTrp: 0.434 ± 0.044
1.794IleTyr: 1.794 ± 0.103
0.0IleXaa: 0.0 ± 0.0
Lys
4.954LysAla: 4.954 ± 0.183
0.281LysCys: 0.281 ± 0.035
2.629LysAsp: 2.629 ± 0.119
2.869LysGlu: 2.869 ± 0.112
1.896LysPhe: 1.896 ± 0.102
3.598LysGly: 3.598 ± 0.134
0.895LysHis: 0.895 ± 0.066
2.956LysIle: 2.956 ± 0.134
3.293LysLys: 3.293 ± 0.142
5.498LysLeu: 5.498 ± 0.155
1.379LysMet: 1.379 ± 0.081
2.366LysAsn: 2.366 ± 0.114
2.334LysPro: 2.334 ± 0.107
2.232LysGln: 2.232 ± 0.111
2.624LysArg: 2.624 ± 0.115
2.818LysSer: 2.818 ± 0.126
2.975LysThr: 2.975 ± 0.12
3.75LysVal: 3.75 ± 0.164
0.461LysTrp: 0.461 ± 0.038
1.896LysTyr: 1.896 ± 0.088
0.0LysXaa: 0.0 ± 0.0
Leu
11.632LeuAla: 11.632 ± 0.265
0.826LeuCys: 0.826 ± 0.054
6.111LeuAsp: 6.111 ± 0.178
5.456LeuGlu: 5.456 ± 0.188
4.695LeuPhe: 4.695 ± 0.164
7.61LeuGly: 7.61 ± 0.227
2.647LeuHis: 2.647 ± 0.111
5.092LeuIle: 5.092 ± 0.166
5.101LeuLys: 5.101 ± 0.18
13.537LeuLeu: 13.537 ± 0.303
2.062LeuMet: 2.062 ± 0.098
4.303LeuAsn: 4.303 ± 0.153
5.106LeuPro: 5.106 ± 0.193
4.003LeuGln: 4.003 ± 0.139
6.808LeuArg: 6.808 ± 0.201
6.379LeuSer: 6.379 ± 0.18
6.66LeuThr: 6.66 ± 0.205
7.043LeuVal: 7.043 ± 0.184
0.904LeuTrp: 0.904 ± 0.061
3.261LeuTyr: 3.261 ± 0.14
0.0LeuXaa: 0.0 ± 0.0
Met
2.117MetAla: 2.117 ± 0.106
0.111MetCys: 0.111 ± 0.025
0.904MetAsp: 0.904 ± 0.066
1.01MetGlu: 1.01 ± 0.071
0.563MetPhe: 0.563 ± 0.056
1.37MetGly: 1.37 ± 0.072
0.424MetHis: 0.424 ± 0.049
0.803MetIle: 0.803 ± 0.059
1.333MetLys: 1.333 ± 0.084
2.301MetLeu: 2.301 ± 0.11
0.41MetMet: 0.41 ± 0.04
0.899MetAsn: 0.899 ± 0.071
1.162MetPro: 1.162 ± 0.072
1.038MetGln: 1.038 ± 0.067
1.522MetArg: 1.522 ± 0.08
1.291MetSer: 1.291 ± 0.077
1.148MetThr: 1.148 ± 0.074
1.291MetVal: 1.291 ± 0.086
0.194MetTrp: 0.194 ± 0.028
0.549MetTyr: 0.549 ± 0.049
0.0MetXaa: 0.0 ± 0.0
Asn
3.182AsnAla: 3.182 ± 0.124
0.364AsnCys: 0.364 ± 0.04
1.909AsnAsp: 1.909 ± 0.084
2.172AsnGlu: 2.172 ± 0.102
1.679AsnPhe: 1.679 ± 0.097
2.532AsnGly: 2.532 ± 0.111
0.779AsnHis: 0.779 ± 0.06
2.172AsnIle: 2.172 ± 0.112
2.228AsnLys: 2.228 ± 0.099
3.999AsnLeu: 3.999 ± 0.15
0.89AsnMet: 0.89 ± 0.063
1.587AsnAsn: 1.587 ± 0.102
2.278AsnPro: 2.278 ± 0.101
1.822AsnGln: 1.822 ± 0.094
2.099AsnArg: 2.099 ± 0.091
2.02AsnSer: 2.02 ± 0.095
2.186AsnThr: 2.186 ± 0.103
2.527AsnVal: 2.527 ± 0.128
0.498AsnTrp: 0.498 ± 0.044
1.642AsnTyr: 1.642 ± 0.088
0.0AsnXaa: 0.0 ± 0.0
Pro
5.678ProAla: 5.678 ± 0.202
0.208ProCys: 0.208 ± 0.032
2.864ProAsp: 2.864 ± 0.111
3.284ProGlu: 3.284 ± 0.123
1.826ProPhe: 1.826 ± 0.085
3.348ProGly: 3.348 ± 0.114
1.116ProHis: 1.116 ± 0.075
2.205ProIle: 2.205 ± 0.098
2.117ProLys: 2.117 ± 0.122
4.571ProLeu: 4.571 ± 0.179
0.812ProMet: 0.812 ± 0.057
1.785ProAsn: 1.785 ± 0.089
1.716ProPro: 1.716 ± 0.102
1.628ProGln: 1.628 ± 0.09
1.988ProArg: 1.988 ± 0.092
2.366ProSer: 2.366 ± 0.106
2.823ProThr: 2.823 ± 0.11
3.533ProVal: 3.533 ± 0.143
0.438ProTrp: 0.438 ± 0.044
1.425ProTyr: 1.425 ± 0.073
0.0ProXaa: 0.0 ± 0.0
Gln
5.05GlnAla: 5.05 ± 0.151
0.254GlnCys: 0.254 ± 0.036
1.9GlnAsp: 1.9 ± 0.092
2.371GlnGlu: 2.371 ± 0.108
1.992GlnPhe: 1.992 ± 0.096
2.634GlnGly: 2.634 ± 0.107
1.208GlnHis: 1.208 ± 0.077
2.002GlnIle: 2.002 ± 0.091
2.32GlnLys: 2.32 ± 0.112
5.502GlnLeu: 5.502 ± 0.176
0.844GlnMet: 0.844 ± 0.058
1.647GlnAsn: 1.647 ± 0.089
2.398GlnPro: 2.398 ± 0.111
2.8GlnGln: 2.8 ± 0.124
3.026GlnArg: 3.026 ± 0.125
1.891GlnSer: 1.891 ± 0.089
2.218GlnThr: 2.218 ± 0.099
3.312GlnVal: 3.312 ± 0.107
0.429GlnTrp: 0.429 ± 0.046
1.614GlnTyr: 1.614 ± 0.093
0.0GlnXaa: 0.0 ± 0.0
Arg
4.935ArgAla: 4.935 ± 0.138
0.369ArgCys: 0.369 ± 0.048
2.92ArgAsp: 2.92 ± 0.116
3.436ArgGlu: 3.436 ± 0.111
2.578ArgPhe: 2.578 ± 0.113
3.016ArgGly: 3.016 ± 0.116
1.425ArgHis: 1.425 ± 0.084
2.966ArgIle: 2.966 ± 0.121
2.703ArgLys: 2.703 ± 0.118
6.466ArgLeu: 6.466 ± 0.189
1.213ArgMet: 1.213 ± 0.081
1.882ArgAsn: 1.882 ± 0.091
2.587ArgPro: 2.587 ± 0.115
2.998ArgGln: 2.998 ± 0.114
3.404ArgArg: 3.404 ± 0.12
2.537ArgSer: 2.537 ± 0.1
3.21ArgThr: 3.21 ± 0.124
3.676ArgVal: 3.676 ± 0.125
0.683ArgTrp: 0.683 ± 0.061
2.366ArgTyr: 2.366 ± 0.107
0.0ArgXaa: 0.0 ± 0.0
Ser
4.898SerAla: 4.898 ± 0.158
0.558SerCys: 0.558 ± 0.052
2.583SerAsp: 2.583 ± 0.107
2.809SerGlu: 2.809 ± 0.116
3.072SerPhe: 3.072 ± 0.132
3.916SerGly: 3.916 ± 0.13
1.107SerHis: 1.107 ± 0.07
2.943SerIle: 2.943 ± 0.116
2.587SerLys: 2.587 ± 0.114
6.226SerLeu: 6.226 ± 0.176
1.208SerMet: 1.208 ± 0.08
2.048SerAsn: 2.048 ± 0.096
2.823SerPro: 2.823 ± 0.113
2.315SerGln: 2.315 ± 0.11
2.892SerArg: 2.892 ± 0.11
3.238SerSer: 3.238 ± 0.11
3.316SerThr: 3.316 ± 0.117
3.685SerVal: 3.685 ± 0.131
0.595SerTrp: 0.595 ± 0.041
1.956SerTyr: 1.956 ± 0.101
0.0SerXaa: 0.0 ± 0.0
Thr
5.645ThrAla: 5.645 ± 0.196
0.424ThrCys: 0.424 ± 0.044
3.307ThrAsp: 3.307 ± 0.132
3.192ThrGlu: 3.192 ± 0.135
2.486ThrPhe: 2.486 ± 0.107
4.289ThrGly: 4.289 ± 0.166
1.31ThrHis: 1.31 ± 0.077
3.086ThrIle: 3.086 ± 0.13
2.832ThrLys: 2.832 ± 0.116
6.143ThrLeu: 6.143 ± 0.2
1.116ThrMet: 1.116 ± 0.068
2.232ThrAsn: 2.232 ± 0.102
3.293ThrPro: 3.293 ± 0.125
2.255ThrGln: 2.255 ± 0.109
2.735ThrArg: 2.735 ± 0.123
3.247ThrSer: 3.247 ± 0.12
3.86ThrThr: 3.86 ± 0.193
4.335ThrVal: 4.335 ± 0.149
0.636ThrTrp: 0.636 ± 0.055
2.149ThrTyr: 2.149 ± 0.096
0.0ThrXaa: 0.0 ± 0.0
Val
7.172ValAla: 7.172 ± 0.182
0.53ValCys: 0.53 ± 0.046
3.372ValAsp: 3.372 ± 0.129
3.976ValGlu: 3.976 ± 0.151
2.998ValPhe: 2.998 ± 0.114
4.903ValGly: 4.903 ± 0.177
1.176ValHis: 1.176 ± 0.061
3.496ValIle: 3.496 ± 0.142
3.344ValLys: 3.344 ± 0.129
7.481ValLeu: 7.481 ± 0.196
1.319ValMet: 1.319 ± 0.083
2.564ValAsn: 2.564 ± 0.1
3.376ValPro: 3.376 ± 0.122
2.896ValGln: 2.896 ± 0.1
3.897ValArg: 3.897 ± 0.127
4.059ValSer: 4.059 ± 0.131
3.607ValThr: 3.607 ± 0.122
5.281ValVal: 5.281 ± 0.186
0.789ValTrp: 0.789 ± 0.058
2.071ValTyr: 2.071 ± 0.102
0.0ValXaa: 0.0 ± 0.0
Trp
0.909TrpAla: 0.909 ± 0.065
0.106TrpCys: 0.106 ± 0.024
0.563TrpAsp: 0.563 ± 0.056
0.655TrpGlu: 0.655 ± 0.058
0.6TrpPhe: 0.6 ± 0.049
0.65TrpGly: 0.65 ± 0.062
0.337TrpHis: 0.337 ± 0.039
0.503TrpIle: 0.503 ± 0.054
0.498TrpLys: 0.498 ± 0.048
1.471TrpLeu: 1.471 ± 0.082
0.254TrpMet: 0.254 ± 0.031
0.42TrpAsn: 0.42 ± 0.046
0.378TrpPro: 0.378 ± 0.047
0.807TrpGln: 0.807 ± 0.065
0.715TrpArg: 0.715 ± 0.063
0.521TrpSer: 0.521 ± 0.053
0.613TrpThr: 0.613 ± 0.048
0.775TrpVal: 0.775 ± 0.068
0.129TrpTrp: 0.129 ± 0.029
0.429TrpTyr: 0.429 ± 0.05
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.113TyrAla: 3.113 ± 0.113
0.341TyrCys: 0.341 ± 0.039
1.79TyrAsp: 1.79 ± 0.088
2.159TyrGlu: 2.159 ± 0.103
2.052TyrPhe: 2.052 ± 0.1
2.67TyrGly: 2.67 ± 0.142
0.909TyrHis: 0.909 ± 0.063
1.564TyrIle: 1.564 ± 0.09
1.693TyrLys: 1.693 ± 0.083
3.939TyrLeu: 3.939 ± 0.156
0.609TyrMet: 0.609 ± 0.053
1.587TyrAsn: 1.587 ± 0.094
1.605TyrPro: 1.605 ± 0.103
1.845TyrGln: 1.845 ± 0.083
2.062TyrArg: 2.062 ± 0.104
2.14TyrSer: 2.14 ± 0.094
2.052TyrThr: 2.052 ± 0.095
2.191TyrVal: 2.191 ± 0.098
0.48TyrTrp: 0.48 ± 0.048
1.803TyrTyr: 1.803 ± 0.111
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
0.005XaaVal: 0.005 ± 0.004
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.005XaaXaa: 0.005 ± 0.004
Statistics based on 1132 proteins (216817 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