Amino acid dipepetide frequency for Peptoniphilus sp. BV3C26

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
3.399AlaAla: 3.399 ± 0.105
0.622AlaCys: 0.622 ± 0.038
2.89AlaAsp: 2.89 ± 0.08
3.491AlaGlu: 3.491 ± 0.077
2.678AlaPhe: 2.678 ± 0.092
3.84AlaGly: 3.84 ± 0.092
0.832AlaHis: 0.832 ± 0.039
5.291AlaIle: 5.291 ± 0.113
5.19AlaLys: 5.19 ± 0.099
5.946AlaLeu: 5.946 ± 0.105
1.571AlaMet: 1.571 ± 0.056
2.811AlaAsn: 2.811 ± 0.071
1.511AlaPro: 1.511 ± 0.068
1.65AlaGln: 1.65 ± 0.054
2.154AlaArg: 2.154 ± 0.067
3.199AlaSer: 3.199 ± 0.081
2.627AlaThr: 2.627 ± 0.083
3.426AlaVal: 3.426 ± 0.084
0.375AlaTrp: 0.375 ± 0.024
2.178AlaTyr: 2.178 ± 0.064
0.0AlaXaa: 0.0 ± 0.0
Cys
0.495CysAla: 0.495 ± 0.029
0.093CysCys: 0.093 ± 0.014
0.554CysAsp: 0.554 ± 0.03
0.493CysGlu: 0.493 ± 0.027
0.337CysPhe: 0.337 ± 0.025
0.918CysGly: 0.918 ± 0.041
0.211CysHis: 0.211 ± 0.02
0.652CysIle: 0.652 ± 0.039
0.691CysLys: 0.691 ± 0.036
0.842CysLeu: 0.842 ± 0.037
0.175CysMet: 0.175 ± 0.018
0.411CysAsn: 0.411 ± 0.025
0.399CysPro: 0.399 ± 0.031
0.287CysGln: 0.287 ± 0.023
0.263CysArg: 0.263 ± 0.021
0.54CysSer: 0.54 ± 0.037
0.395CysThr: 0.395 ± 0.031
0.488CysVal: 0.488 ± 0.031
0.053CysTrp: 0.053 ± 0.01
0.299CysTyr: 0.299 ± 0.024
0.0CysXaa: 0.0 ± 0.0
Asp
2.785AspAla: 2.785 ± 0.077
0.418AspCys: 0.418 ± 0.029
2.969AspAsp: 2.969 ± 0.072
5.125AspGlu: 5.125 ± 0.105
3.552AspPhe: 3.552 ± 0.077
3.816AspGly: 3.816 ± 0.103
0.719AspHis: 0.719 ± 0.038
5.264AspIle: 5.264 ± 0.094
5.872AspLys: 5.872 ± 0.118
6.605AspLeu: 6.605 ± 0.117
1.485AspMet: 1.485 ± 0.052
2.838AspAsn: 2.838 ± 0.081
1.721AspPro: 1.721 ± 0.073
1.461AspGln: 1.461 ± 0.052
2.23AspArg: 2.23 ± 0.073
3.17AspSer: 3.17 ± 0.081
2.53AspThr: 2.53 ± 0.081
3.347AspVal: 3.347 ± 0.078
0.352AspTrp: 0.352 ± 0.028
2.907AspTyr: 2.907 ± 0.076
0.0AspXaa: 0.0 ± 0.0
Glu
4.372GluAla: 4.372 ± 0.096
0.413GluCys: 0.413 ± 0.025
5.104GluAsp: 5.104 ± 0.102
7.856GluGlu: 7.856 ± 0.164
3.225GluPhe: 3.225 ± 0.077
4.14GluGly: 4.14 ± 0.096
0.839GluHis: 0.839 ± 0.037
7.803GluIle: 7.803 ± 0.135
9.849GluLys: 9.849 ± 0.171
6.529GluLeu: 6.529 ± 0.133
1.991GluMet: 1.991 ± 0.064
6.529GluAsn: 6.529 ± 0.123
1.437GluPro: 1.437 ± 0.053
1.52GluGln: 1.52 ± 0.059
2.977GluArg: 2.977 ± 0.08
3.565GluSer: 3.565 ± 0.081
2.891GluThr: 2.891 ± 0.072
4.42GluVal: 4.42 ± 0.102
0.409GluTrp: 0.409 ± 0.029
2.879GluTyr: 2.879 ± 0.08
0.0GluXaa: 0.0 ± 0.0
Phe
2.701PheAla: 2.701 ± 0.07
0.45PheCys: 0.45 ± 0.029
2.971PheAsp: 2.971 ± 0.076
3.486PheGlu: 3.486 ± 0.082
2.305PhePhe: 2.305 ± 0.068
2.859PheGly: 2.859 ± 0.087
0.528PheHis: 0.528 ± 0.03
4.633PheIle: 4.633 ± 0.126
4.42PheLys: 4.42 ± 0.105
4.925PheLeu: 4.925 ± 0.12
1.272PheMet: 1.272 ± 0.047
2.567PheAsn: 2.567 ± 0.08
1.229PhePro: 1.229 ± 0.048
1.056PheGln: 1.056 ± 0.046
1.408PheArg: 1.408 ± 0.06
3.512PheSer: 3.512 ± 0.089
2.422PheThr: 2.422 ± 0.078
2.689PheVal: 2.689 ± 0.082
0.294PheTrp: 0.294 ± 0.026
2.164PheTyr: 2.164 ± 0.07
0.0PheXaa: 0.0 ± 0.0
Gly
3.916GlyAla: 3.916 ± 0.108
0.681GlyCys: 0.681 ± 0.036
3.239GlyAsp: 3.239 ± 0.071
4.153GlyGlu: 4.153 ± 0.092
2.945GlyPhe: 2.945 ± 0.071
4.315GlyGly: 4.315 ± 0.118
1.061GlyHis: 1.061 ± 0.045
6.206GlyIle: 6.206 ± 0.124
6.285GlyLys: 6.285 ± 0.126
6.094GlyLeu: 6.094 ± 0.117
1.671GlyMet: 1.671 ± 0.056
3.175GlyAsn: 3.175 ± 0.086
1.406GlyPro: 1.406 ± 0.051
2.118GlyGln: 2.118 ± 0.073
2.381GlyArg: 2.381 ± 0.074
3.803GlySer: 3.803 ± 0.093
3.252GlyThr: 3.252 ± 0.091
3.811GlyVal: 3.811 ± 0.09
0.43GlyTrp: 0.43 ± 0.034
2.929GlyTyr: 2.929 ± 0.085
0.0GlyXaa: 0.0 ± 0.0
His
0.664HisAla: 0.664 ± 0.035
0.127HisCys: 0.127 ± 0.014
0.737HisAsp: 0.737 ± 0.038
0.978HisGlu: 0.978 ± 0.041
0.646HisPhe: 0.646 ± 0.037
0.939HisGly: 0.939 ± 0.04
0.23HisHis: 0.23 ± 0.02
1.186HisIle: 1.186 ± 0.049
0.933HisLys: 0.933 ± 0.036
1.169HisLeu: 1.169 ± 0.044
0.296HisMet: 0.296 ± 0.02
0.648HisAsn: 0.648 ± 0.033
0.56HisPro: 0.56 ± 0.03
0.337HisGln: 0.337 ± 0.03
0.545HisArg: 0.545 ± 0.036
0.779HisSer: 0.779 ± 0.04
0.643HisThr: 0.643 ± 0.036
0.676HisVal: 0.676 ± 0.039
0.122HisTrp: 0.122 ± 0.014
0.54HisTyr: 0.54 ± 0.031
0.0HisXaa: 0.0 ± 0.0
Ile
5.455IleAla: 5.455 ± 0.117
0.947IleCys: 0.947 ± 0.044
5.723IleAsp: 5.723 ± 0.11
7.291IleGlu: 7.291 ± 0.129
4.932IlePhe: 4.932 ± 0.136
5.872IleGly: 5.872 ± 0.12
1.129IleHis: 1.129 ± 0.05
8.238IleIle: 8.238 ± 0.17
8.949IleLys: 8.949 ± 0.144
9.132IleLeu: 9.132 ± 0.18
2.051IleMet: 2.051 ± 0.067
5.31IleAsn: 5.31 ± 0.101
3.063IlePro: 3.063 ± 0.079
1.796IleGln: 1.796 ± 0.059
3.201IleArg: 3.201 ± 0.081
6.771IleSer: 6.771 ± 0.142
4.026IleThr: 4.026 ± 0.089
5.599IleVal: 5.599 ± 0.104
0.538IleTrp: 0.538 ± 0.035
3.655IleTyr: 3.655 ± 0.082
0.0IleXaa: 0.0 ± 0.0
Lys
5.183LysAla: 5.183 ± 0.112
0.619LysCys: 0.619 ± 0.038
7.265LysAsp: 7.265 ± 0.139
9.818LysGlu: 9.818 ± 0.178
3.899LysPhe: 3.899 ± 0.088
5.193LysGly: 5.193 ± 0.091
0.982LysHis: 0.982 ± 0.042
9.871LysIle: 9.871 ± 0.167
9.917LysLys: 9.917 ± 0.154
7.891LysLeu: 7.891 ± 0.127
2.637LysMet: 2.637 ± 0.065
8.1LysAsn: 8.1 ± 0.14
2.068LysPro: 2.068 ± 0.078
1.987LysGln: 1.987 ± 0.062
3.601LysArg: 3.601 ± 0.091
5.527LysSer: 5.527 ± 0.119
4.867LysThr: 4.867 ± 0.108
5.74LysVal: 5.74 ± 0.103
0.543LysTrp: 0.543 ± 0.031
3.832LysTyr: 3.832 ± 0.093
0.0LysXaa: 0.0 ± 0.0
Leu
5.322LeuAla: 5.322 ± 0.103
0.81LeuCys: 0.81 ± 0.044
5.448LeuAsp: 5.448 ± 0.101
6.821LeuGlu: 6.821 ± 0.145
4.145LeuPhe: 4.145 ± 0.104
6.235LeuGly: 6.235 ± 0.111
1.04LeuHis: 1.04 ± 0.047
8.941LeuIle: 8.941 ± 0.162
10.321LeuLys: 10.321 ± 0.184
8.074LeuLeu: 8.074 ± 0.157
2.371LeuMet: 2.371 ± 0.059
6.012LeuAsn: 6.012 ± 0.1
2.881LeuPro: 2.881 ± 0.076
2.046LeuGln: 2.046 ± 0.064
3.493LeuArg: 3.493 ± 0.075
7.113LeuSer: 7.113 ± 0.124
4.519LeuThr: 4.519 ± 0.093
5.341LeuVal: 5.341 ± 0.091
0.521LeuTrp: 0.521 ± 0.029
3.074LeuTyr: 3.074 ± 0.069
0.0LeuXaa: 0.0 ± 0.0
Met
1.858MetAla: 1.858 ± 0.064
0.193MetCys: 0.193 ± 0.018
1.7MetAsp: 1.7 ± 0.048
2.176MetGlu: 2.176 ± 0.064
0.956MetPhe: 0.956 ± 0.043
1.814MetGly: 1.814 ± 0.065
0.227MetHis: 0.227 ± 0.021
2.161MetIle: 2.161 ± 0.069
2.527MetLys: 2.527 ± 0.076
1.901MetLeu: 1.901 ± 0.075
0.65MetMet: 0.65 ± 0.035
1.47MetAsn: 1.47 ± 0.055
0.868MetPro: 0.868 ± 0.04
0.61MetGln: 0.61 ± 0.032
0.882MetArg: 0.882 ± 0.041
1.566MetSer: 1.566 ± 0.056
1.315MetThr: 1.315 ± 0.057
1.439MetVal: 1.439 ± 0.053
0.155MetTrp: 0.155 ± 0.016
0.689MetTyr: 0.689 ± 0.032
0.0MetXaa: 0.0 ± 0.0
Asn
2.795AsnAla: 2.795 ± 0.083
0.499AsnCys: 0.499 ± 0.034
2.694AsnAsp: 2.694 ± 0.078
4.06AsnGlu: 4.06 ± 0.098
3.368AsnPhe: 3.368 ± 0.083
3.232AsnGly: 3.232 ± 0.088
0.801AsnHis: 0.801 ± 0.04
6.013AsnIle: 6.013 ± 0.114
6.156AsnLys: 6.156 ± 0.126
6.754AsnLeu: 6.754 ± 0.128
1.492AsnMet: 1.492 ± 0.052
3.252AsnAsn: 3.252 ± 0.089
2.362AsnPro: 2.362 ± 0.078
1.508AsnGln: 1.508 ± 0.06
2.223AsnArg: 2.223 ± 0.066
3.49AsnSer: 3.49 ± 0.095
2.604AsnThr: 2.604 ± 0.069
3.022AsnVal: 3.022 ± 0.067
0.411AsnTrp: 0.411 ± 0.029
2.616AsnTyr: 2.616 ± 0.071
0.0AsnXaa: 0.0 ± 0.0
Pro
1.504ProAla: 1.504 ± 0.061
0.232ProCys: 0.232 ± 0.022
1.683ProAsp: 1.683 ± 0.065
2.36ProGlu: 2.36 ± 0.078
1.413ProPhe: 1.413 ± 0.051
1.802ProGly: 1.802 ± 0.089
0.48ProHis: 0.48 ± 0.031
2.635ProIle: 2.635 ± 0.064
2.582ProLys: 2.582 ± 0.078
2.529ProLeu: 2.529 ± 0.07
0.763ProMet: 0.763 ± 0.037
1.439ProAsn: 1.439 ± 0.065
0.634ProPro: 0.634 ± 0.042
0.937ProGln: 0.937 ± 0.04
0.786ProArg: 0.786 ± 0.04
1.822ProSer: 1.822 ± 0.061
1.477ProThr: 1.477 ± 0.063
1.85ProVal: 1.85 ± 0.074
0.182ProTrp: 0.182 ± 0.018
1.269ProTyr: 1.269 ± 0.047
0.0ProXaa: 0.0 ± 0.0
Gln
1.576GlnAla: 1.576 ± 0.053
0.167GlnCys: 0.167 ± 0.018
1.38GlnAsp: 1.38 ± 0.049
1.967GlnGlu: 1.967 ± 0.055
0.903GlnPhe: 0.903 ± 0.039
1.867GlnGly: 1.867 ± 0.065
0.217GlnHis: 0.217 ± 0.021
2.589GlnIle: 2.589 ± 0.064
2.34GlnLys: 2.34 ± 0.073
1.826GlnLeu: 1.826 ± 0.055
0.746GlnMet: 0.746 ± 0.036
1.571GlnAsn: 1.571 ± 0.05
0.492GlnPro: 0.492 ± 0.034
0.447GlnGln: 0.447 ± 0.03
1.169GlnArg: 1.169 ± 0.048
1.264GlnSer: 1.264 ± 0.046
1.111GlnThr: 1.111 ± 0.047
1.764GlnVal: 1.764 ± 0.059
0.168GlnTrp: 0.168 ± 0.018
0.878GlnTyr: 0.878 ± 0.035
0.0GlnXaa: 0.0 ± 0.0
Arg
2.216ArgAla: 2.216 ± 0.057
0.332ArgCys: 0.332 ± 0.024
2.34ArgAsp: 2.34 ± 0.078
3.448ArgGlu: 3.448 ± 0.097
1.547ArgPhe: 1.547 ± 0.053
2.347ArgGly: 2.347 ± 0.067
0.504ArgHis: 0.504 ± 0.027
3.244ArgIle: 3.244 ± 0.086
3.314ArgLys: 3.314 ± 0.089
3.153ArgLeu: 3.153 ± 0.084
0.945ArgMet: 0.945 ± 0.044
2.053ArgAsn: 2.053 ± 0.063
1.167ArgPro: 1.167 ± 0.046
1.167ArgGln: 1.167 ± 0.049
1.623ArgArg: 1.623 ± 0.06
1.815ArgSer: 1.815 ± 0.061
1.618ArgThr: 1.618 ± 0.056
2.123ArgVal: 2.123 ± 0.056
0.213ArgTrp: 0.213 ± 0.019
1.379ArgTyr: 1.379 ± 0.051
0.0ArgXaa: 0.0 ± 0.0
Ser
3.282SerAla: 3.282 ± 0.083
0.536SerCys: 0.536 ± 0.031
3.392SerAsp: 3.392 ± 0.085
4.071SerGlu: 4.071 ± 0.089
3.251SerPhe: 3.251 ± 0.075
4.311SerGly: 4.311 ± 0.091
0.901SerHis: 0.901 ± 0.039
5.563SerIle: 5.563 ± 0.13
5.847SerLys: 5.847 ± 0.107
6.742SerLeu: 6.742 ± 0.137
1.492SerMet: 1.492 ± 0.052
3.003SerAsn: 3.003 ± 0.069
1.741SerPro: 1.741 ± 0.055
2.035SerGln: 2.035 ± 0.062
2.039SerArg: 2.039 ± 0.054
3.717SerSer: 3.717 ± 0.093
2.702SerThr: 2.702 ± 0.068
3.411SerVal: 3.411 ± 0.089
0.459SerTrp: 0.459 ± 0.03
2.785SerTyr: 2.785 ± 0.074
0.0SerXaa: 0.0 ± 0.0
Thr
2.644ThrAla: 2.644 ± 0.081
0.421ThrCys: 0.421 ± 0.028
2.654ThrAsp: 2.654 ± 0.09
2.948ThrGlu: 2.948 ± 0.071
2.472ThrPhe: 2.472 ± 0.078
3.404ThrGly: 3.404 ± 0.088
0.672ThrHis: 0.672 ± 0.035
4.454ThrIle: 4.454 ± 0.101
3.889ThrLys: 3.889 ± 0.093
4.461ThrLeu: 4.461 ± 0.092
1.117ThrMet: 1.117 ± 0.047
2.35ThrAsn: 2.35 ± 0.082
1.63ThrPro: 1.63 ± 0.067
1.068ThrGln: 1.068 ± 0.051
1.654ThrArg: 1.654 ± 0.049
3.056ThrSer: 3.056 ± 0.072
2.084ThrThr: 2.084 ± 0.076
3.055ThrVal: 3.055 ± 0.118
0.309ThrTrp: 0.309 ± 0.025
1.855ThrTyr: 1.855 ± 0.059
0.0ThrXaa: 0.0 ± 0.0
Val
3.34ValAla: 3.34 ± 0.089
0.567ValCys: 0.567 ± 0.033
3.574ValAsp: 3.574 ± 0.084
4.511ValGlu: 4.511 ± 0.088
2.945ValPhe: 2.945 ± 0.071
3.889ValGly: 3.889 ± 0.085
0.737ValHis: 0.737 ± 0.039
5.027ValIle: 5.027 ± 0.109
5.556ValLys: 5.556 ± 0.109
5.553ValLeu: 5.553 ± 0.101
1.325ValMet: 1.325 ± 0.05
3.235ValAsn: 3.235 ± 0.07
1.831ValPro: 1.831 ± 0.066
1.226ValGln: 1.226 ± 0.044
2.078ValArg: 2.078 ± 0.063
3.885ValSer: 3.885 ± 0.069
2.888ValThr: 2.888 ± 0.104
3.244ValVal: 3.244 ± 0.077
0.356ValTrp: 0.356 ± 0.027
2.149ValTyr: 2.149 ± 0.07
0.0ValXaa: 0.0 ± 0.0
Trp
0.392TrpAla: 0.392 ± 0.028
0.057TrpCys: 0.057 ± 0.011
0.407TrpAsp: 0.407 ± 0.027
0.418TrpGlu: 0.418 ± 0.027
0.234TrpPhe: 0.234 ± 0.02
0.419TrpGly: 0.419 ± 0.027
0.122TrpHis: 0.122 ± 0.013
0.579TrpIle: 0.579 ± 0.034
0.5TrpLys: 0.5 ± 0.035
0.474TrpLeu: 0.474 ± 0.027
0.203TrpMet: 0.203 ± 0.02
0.39TrpAsn: 0.39 ± 0.032
0.139TrpPro: 0.139 ± 0.017
0.241TrpGln: 0.241 ± 0.02
0.253TrpArg: 0.253 ± 0.02
0.325TrpSer: 0.325 ± 0.027
0.411TrpThr: 0.411 ± 0.029
0.308TrpVal: 0.308 ± 0.022
0.057TrpTrp: 0.057 ± 0.009
0.291TrpTyr: 0.291 ± 0.022
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.784TyrAla: 1.784 ± 0.053
0.414TyrCys: 0.414 ± 0.026
2.443TyrAsp: 2.443 ± 0.064
3.275TyrGlu: 3.275 ± 0.07
2.139TyrPhe: 2.139 ± 0.072
2.659TyrGly: 2.659 ± 0.073
0.524TyrHis: 0.524 ± 0.031
3.33TyrIle: 3.33 ± 0.088
4.401TyrLys: 4.401 ± 0.102
3.928TyrLeu: 3.928 ± 0.1
0.901TyrMet: 0.901 ± 0.041
2.188TyrAsn: 2.188 ± 0.069
1.238TyrPro: 1.238 ± 0.051
0.944TyrGln: 0.944 ± 0.04
1.588TyrArg: 1.588 ± 0.049
2.36TyrSer: 2.36 ± 0.073
1.814TyrThr: 1.814 ± 0.061
2.164TyrVal: 2.164 ± 0.07
0.273TyrTrp: 0.273 ± 0.021
1.695TyrTyr: 1.695 ± 0.055
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 1924 proteins (581713 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