Amino acid dipepetide frequency for Sulfurovum sp. AR

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
5.259AlaAla: 5.259 ± 0.12
0.692AlaCys: 0.692 ± 0.04
3.563AlaAsp: 3.563 ± 0.079
4.006AlaGlu: 4.006 ± 0.09
3.499AlaPhe: 3.499 ± 0.078
4.763AlaGly: 4.763 ± 0.115
1.59AlaHis: 1.59 ± 0.048
5.691AlaIle: 5.691 ± 0.117
6.019AlaLys: 6.019 ± 0.118
8.631AlaLeu: 8.631 ± 0.142
2.444AlaMet: 2.444 ± 0.067
2.845AlaAsn: 2.845 ± 0.065
2.128AlaPro: 2.128 ± 0.063
2.584AlaGln: 2.584 ± 0.056
2.451AlaArg: 2.451 ± 0.058
4.409AlaSer: 4.409 ± 0.089
3.83AlaThr: 3.83 ± 0.086
4.783AlaVal: 4.783 ± 0.111
0.622AlaTrp: 0.622 ± 0.035
3.031AlaTyr: 3.031 ± 0.07
0.0AlaXaa: 0.0 ± 0.0
Cys
0.622CysAla: 0.622 ± 0.033
0.115CysCys: 0.115 ± 0.014
0.675CysAsp: 0.675 ± 0.034
0.662CysGlu: 0.662 ± 0.038
0.32CysPhe: 0.32 ± 0.022
0.773CysGly: 0.773 ± 0.038
0.281CysHis: 0.281 ± 0.026
0.572CysIle: 0.572 ± 0.03
0.637CysLys: 0.637 ± 0.037
0.522CysLeu: 0.522 ± 0.03
0.21CysMet: 0.21 ± 0.019
0.398CysAsn: 0.398 ± 0.027
0.384CysPro: 0.384 ± 0.027
0.26CysGln: 0.26 ± 0.021
0.306CysArg: 0.306 ± 0.022
0.653CysSer: 0.653 ± 0.032
0.471CysThr: 0.471 ± 0.029
0.511CysVal: 0.511 ± 0.031
0.048CysTrp: 0.048 ± 0.009
0.3CysTyr: 0.3 ± 0.021
0.0CysXaa: 0.0 ± 0.0
Asp
4.533AspAla: 4.533 ± 0.093
0.392AspCys: 0.392 ± 0.025
3.205AspAsp: 3.205 ± 0.1
4.922AspGlu: 4.922 ± 0.093
2.907AspPhe: 2.907 ± 0.072
3.565AspGly: 3.565 ± 0.117
1.132AspHis: 1.132 ± 0.042
5.25AspIle: 5.25 ± 0.104
4.197AspLys: 4.197 ± 0.086
4.925AspLeu: 4.925 ± 0.093
1.738AspMet: 1.738 ± 0.057
2.419AspAsn: 2.419 ± 0.058
1.994AspPro: 1.994 ± 0.057
1.401AspGln: 1.401 ± 0.044
2.072AspArg: 2.072 ± 0.057
2.719AspSer: 2.719 ± 0.073
3.652AspThr: 3.652 ± 0.122
3.762AspVal: 3.762 ± 0.082
0.446AspTrp: 0.446 ± 0.031
2.13AspTyr: 2.13 ± 0.063
0.0AspXaa: 0.0 ± 0.0
Glu
5.73GluAla: 5.73 ± 0.105
0.557GluCys: 0.557 ± 0.032
3.844GluAsp: 3.844 ± 0.071
6.185GluGlu: 6.185 ± 0.133
2.689GluPhe: 2.689 ± 0.054
4.578GluGly: 4.578 ± 0.092
1.707GluHis: 1.707 ± 0.06
5.589GluIle: 5.589 ± 0.096
6.624GluLys: 6.624 ± 0.109
6.608GluLeu: 6.608 ± 0.12
2.103GluMet: 2.103 ± 0.055
3.771GluAsn: 3.771 ± 0.082
1.803GluPro: 1.803 ± 0.059
2.276GluGln: 2.276 ± 0.069
2.828GluArg: 2.828 ± 0.071
4.026GluSer: 4.026 ± 0.089
3.694GluThr: 3.694 ± 0.082
4.925GluVal: 4.925 ± 0.098
0.622GluTrp: 0.622 ± 0.036
2.619GluTyr: 2.619 ± 0.071
0.0GluXaa: 0.0 ± 0.0
Phe
3.254PheAla: 3.254 ± 0.077
0.429PheCys: 0.429 ± 0.029
3.21PheAsp: 3.21 ± 0.065
3.366PheGlu: 3.366 ± 0.068
2.366PhePhe: 2.366 ± 0.07
3.42PheGly: 3.42 ± 0.089
0.804PheHis: 0.804 ± 0.037
3.905PheIle: 3.905 ± 0.084
2.935PheLys: 2.935 ± 0.069
4.328PheLeu: 4.328 ± 0.093
1.301PheMet: 1.301 ± 0.049
2.086PheAsn: 2.086 ± 0.054
1.382PhePro: 1.382 ± 0.047
1.107PheGln: 1.107 ± 0.044
1.374PheArg: 1.374 ± 0.045
3.414PheSer: 3.414 ± 0.072
2.762PheThr: 2.762 ± 0.065
3.052PheVal: 3.052 ± 0.081
0.485PheTrp: 0.485 ± 0.029
1.886PheTyr: 1.886 ± 0.056
0.0PheXaa: 0.0 ± 0.0
Gly
4.744GlyAla: 4.744 ± 0.119
0.799GlyCys: 0.799 ± 0.036
3.515GlyAsp: 3.515 ± 0.102
4.269GlyGlu: 4.269 ± 0.082
3.367GlyPhe: 3.367 ± 0.069
4.586GlyGly: 4.586 ± 0.136
1.359GlyHis: 1.359 ± 0.052
5.324GlyIle: 5.324 ± 0.105
4.752GlyLys: 4.752 ± 0.089
5.994GlyLeu: 5.994 ± 0.116
2.091GlyMet: 2.091 ± 0.055
2.492GlyAsn: 2.492 ± 0.102
1.298GlyPro: 1.298 ± 0.051
1.719GlyGln: 1.719 ± 0.061
2.312GlyArg: 2.312 ± 0.059
3.785GlySer: 3.785 ± 0.084
3.675GlyThr: 3.675 ± 0.084
4.671GlyVal: 4.671 ± 0.087
0.696GlyTrp: 0.696 ± 0.033
3.089GlyTyr: 3.089 ± 0.07
0.0GlyXaa: 0.0 ± 0.0
His
1.474HisAla: 1.474 ± 0.047
0.25HisCys: 0.25 ± 0.017
1.119HisAsp: 1.119 ± 0.046
1.298HisGlu: 1.298 ± 0.048
1.306HisPhe: 1.306 ± 0.051
1.455HisGly: 1.455 ± 0.054
0.597HisHis: 0.597 ± 0.031
1.844HisIle: 1.844 ± 0.055
1.416HisLys: 1.416 ± 0.048
2.125HisLeu: 2.125 ± 0.055
0.603HisMet: 0.603 ± 0.035
0.844HisAsn: 0.844 ± 0.037
1.028HisPro: 1.028 ± 0.041
0.751HisGln: 0.751 ± 0.034
0.81HisArg: 0.81 ± 0.039
1.197HisSer: 1.197 ± 0.05
1.401HisThr: 1.401 ± 0.048
1.113HisVal: 1.113 ± 0.046
0.216HisTrp: 0.216 ± 0.017
1.076HisTyr: 1.076 ± 0.045
0.0HisXaa: 0.0 ± 0.0
Ile
6.405IleAla: 6.405 ± 0.117
0.64IleCys: 0.64 ± 0.035
5.341IleAsp: 5.341 ± 0.095
6.098IleGlu: 6.098 ± 0.11
3.473IlePhe: 3.473 ± 0.097
5.257IleGly: 5.257 ± 0.107
1.598IleHis: 1.598 ± 0.047
5.825IleIle: 5.825 ± 0.117
5.472IleLys: 5.472 ± 0.114
7.386IleLeu: 7.386 ± 0.115
1.825IleMet: 1.825 ± 0.054
3.345IleAsn: 3.345 ± 0.078
2.851IlePro: 2.851 ± 0.072
2.296IleGln: 2.296 ± 0.07
2.657IleArg: 2.657 ± 0.068
5.117IleSer: 5.117 ± 0.103
4.43IleThr: 4.43 ± 0.083
5.141IleVal: 5.141 ± 0.106
0.622IleTrp: 0.622 ± 0.031
2.809IleTyr: 2.809 ± 0.06
0.0IleXaa: 0.0 ± 0.0
Lys
5.501LysAla: 5.501 ± 0.101
0.586LysCys: 0.586 ± 0.038
4.188LysAsp: 4.188 ± 0.075
7.487LysGlu: 7.487 ± 0.119
2.38LysPhe: 2.38 ± 0.063
4.272LysGly: 4.272 ± 0.092
1.646LysHis: 1.646 ± 0.049
5.823LysIle: 5.823 ± 0.1
6.896LysLys: 6.896 ± 0.134
6.605LysLeu: 6.605 ± 0.122
2.279LysMet: 2.279 ± 0.069
3.802LysAsn: 3.802 ± 0.075
2.512LysPro: 2.512 ± 0.076
2.358LysGln: 2.358 ± 0.069
3.366LysArg: 3.366 ± 0.077
4.334LysSer: 4.334 ± 0.08
3.894LysThr: 3.894 ± 0.081
4.987LysVal: 4.987 ± 0.1
0.574LysTrp: 0.574 ± 0.031
2.699LysTyr: 2.699 ± 0.07
0.0LysXaa: 0.0 ± 0.0
Leu
6.991LeuAla: 6.991 ± 0.123
0.847LeuCys: 0.847 ± 0.04
5.711LeuAsp: 5.711 ± 0.103
7.006LeuGlu: 7.006 ± 0.107
5.341LeuPhe: 5.341 ± 0.117
6.327LeuGly: 6.327 ± 0.103
2.169LeuHis: 2.169 ± 0.068
6.841LeuIle: 6.841 ± 0.136
7.353LeuLys: 7.353 ± 0.116
10.0LeuLeu: 10.0 ± 0.203
2.699LeuMet: 2.699 ± 0.071
4.101LeuAsn: 4.101 ± 0.081
3.712LeuPro: 3.712 ± 0.076
3.229LeuGln: 3.229 ± 0.064
3.389LeuArg: 3.389 ± 0.073
6.938LeuSer: 6.938 ± 0.122
5.01LeuThr: 5.01 ± 0.112
5.554LeuVal: 5.554 ± 0.117
0.846LeuTrp: 0.846 ± 0.04
3.641LeuTyr: 3.641 ± 0.081
0.0LeuXaa: 0.0 ± 0.0
Met
2.184MetAla: 2.184 ± 0.066
0.174MetCys: 0.174 ± 0.018
1.564MetAsp: 1.564 ± 0.048
1.795MetGlu: 1.795 ± 0.051
1.082MetPhe: 1.082 ± 0.038
1.996MetGly: 1.996 ± 0.056
0.665MetHis: 0.665 ± 0.031
2.329MetIle: 2.329 ± 0.06
2.498MetLys: 2.498 ± 0.066
2.907MetLeu: 2.907 ± 0.067
0.926MetMet: 0.926 ± 0.038
1.276MetAsn: 1.276 ± 0.047
1.155MetPro: 1.155 ± 0.044
1.096MetGln: 1.096 ± 0.046
1.046MetArg: 1.046 ± 0.045
1.87MetSer: 1.87 ± 0.057
1.495MetThr: 1.495 ± 0.051
1.895MetVal: 1.895 ± 0.06
0.193MetTrp: 0.193 ± 0.02
0.748MetTyr: 0.748 ± 0.034
0.0MetXaa: 0.0 ± 0.0
Asn
3.258AsnAla: 3.258 ± 0.066
0.347AsnCys: 0.347 ± 0.028
2.616AsnAsp: 2.616 ± 0.096
3.055AsnGlu: 3.055 ± 0.075
1.938AsnPhe: 1.938 ± 0.055
2.795AsnGly: 2.795 ± 0.083
0.909AsnHis: 0.909 ± 0.038
3.953AsnIle: 3.953 ± 0.096
2.968AsnLys: 2.968 ± 0.079
3.871AsnLeu: 3.871 ± 0.068
1.111AsnMet: 1.111 ± 0.047
1.945AsnAsn: 1.945 ± 0.069
2.033AsnPro: 2.033 ± 0.059
1.197AsnGln: 1.197 ± 0.055
1.823AsnArg: 1.823 ± 0.06
2.293AsnSer: 2.293 ± 0.06
2.545AsnThr: 2.545 ± 0.06
2.795AsnVal: 2.795 ± 0.074
0.317AsnTrp: 0.317 ± 0.022
1.794AsnTyr: 1.794 ± 0.06
0.0AsnXaa: 0.0 ± 0.0
Pro
2.035ProAla: 2.035 ± 0.071
0.275ProCys: 0.275 ± 0.023
1.948ProAsp: 1.948 ± 0.06
2.582ProGlu: 2.582 ± 0.071
1.872ProPhe: 1.872 ± 0.054
1.718ProGly: 1.718 ± 0.06
0.844ProHis: 0.844 ± 0.041
2.591ProIle: 2.591 ± 0.059
2.613ProLys: 2.613 ± 0.072
3.549ProLeu: 3.549 ± 0.08
0.94ProMet: 0.94 ± 0.037
1.402ProAsn: 1.402 ± 0.056
0.86ProPro: 0.86 ± 0.04
1.063ProGln: 1.063 ± 0.039
0.973ProArg: 0.973 ± 0.04
2.145ProSer: 2.145 ± 0.061
1.962ProThr: 1.962 ± 0.055
2.386ProVal: 2.386 ± 0.067
0.334ProTrp: 0.334 ± 0.024
1.388ProTyr: 1.388 ± 0.052
0.0ProXaa: 0.0 ± 0.0
Gln
2.307GlnAla: 2.307 ± 0.061
0.235GlnCys: 0.235 ± 0.02
1.511GlnAsp: 1.511 ± 0.043
2.475GlnGlu: 2.475 ± 0.068
1.213GlnPhe: 1.213 ± 0.038
1.803GlnGly: 1.803 ± 0.056
0.69GlnHis: 0.69 ± 0.036
2.358GlnIle: 2.358 ± 0.073
3.038GlnLys: 3.038 ± 0.081
2.588GlnLeu: 2.588 ± 0.064
0.981GlnMet: 0.981 ± 0.041
1.761GlnAsn: 1.761 ± 0.062
0.888GlnPro: 0.888 ± 0.041
1.043GlnGln: 1.043 ± 0.044
1.391GlnArg: 1.391 ± 0.048
1.856GlnSer: 1.856 ± 0.059
1.727GlnThr: 1.727 ± 0.057
1.688GlnVal: 1.688 ± 0.054
0.298GlnTrp: 0.298 ± 0.021
1.08GlnTyr: 1.08 ± 0.039
0.0GlnXaa: 0.0 ± 0.0
Arg
2.453ArgAla: 2.453 ± 0.059
0.339ArgCys: 0.339 ± 0.023
2.08ArgAsp: 2.08 ± 0.061
2.68ArgGlu: 2.68 ± 0.062
1.923ArgPhe: 1.923 ± 0.054
2.069ArgGly: 2.069 ± 0.061
0.774ArgHis: 0.774 ± 0.032
2.786ArgIle: 2.786 ± 0.064
2.588ArgLys: 2.588 ± 0.074
3.518ArgLeu: 3.518 ± 0.081
1.111ArgMet: 1.111 ± 0.038
1.564ArgAsn: 1.564 ± 0.047
1.082ArgPro: 1.082 ± 0.043
1.046ArgGln: 1.046 ± 0.041
1.424ArgArg: 1.424 ± 0.054
2.221ArgSer: 2.221 ± 0.058
1.741ArgThr: 1.741 ± 0.055
2.68ArgVal: 2.68 ± 0.07
0.348ArgTrp: 0.348 ± 0.026
1.836ArgTyr: 1.836 ± 0.053
0.0ArgXaa: 0.0 ± 0.0
Ser
4.119SerAla: 4.119 ± 0.085
0.575SerCys: 0.575 ± 0.032
3.401SerAsp: 3.401 ± 0.078
3.75SerGlu: 3.75 ± 0.07
3.107SerPhe: 3.107 ± 0.072
4.214SerGly: 4.214 ± 0.097
1.324SerHis: 1.324 ± 0.047
4.915SerIle: 4.915 ± 0.087
4.503SerLys: 4.503 ± 0.097
6.322SerLeu: 6.322 ± 0.108
1.822SerMet: 1.822 ± 0.061
2.542SerAsn: 2.542 ± 0.064
1.777SerPro: 1.777 ± 0.052
1.938SerGln: 1.938 ± 0.056
2.159SerArg: 2.159 ± 0.05
3.88SerSer: 3.88 ± 0.092
3.516SerThr: 3.516 ± 0.078
4.057SerVal: 4.057 ± 0.091
0.608SerTrp: 0.608 ± 0.035
2.483SerTyr: 2.483 ± 0.066
0.0SerXaa: 0.0 ± 0.0
Thr
3.823ThrAla: 3.823 ± 0.088
0.378ThrCys: 0.378 ± 0.028
2.815ThrAsp: 2.815 ± 0.08
3.03ThrGlu: 3.03 ± 0.066
2.84ThrPhe: 2.84 ± 0.07
3.529ThrGly: 3.529 ± 0.09
1.323ThrHis: 1.323 ± 0.043
4.304ThrIle: 4.304 ± 0.083
3.812ThrLys: 3.812 ± 0.084
6.697ThrLeu: 6.697 ± 0.112
1.464ThrMet: 1.464 ± 0.048
2.139ThrAsn: 2.139 ± 0.065
2.647ThrPro: 2.647 ± 0.067
1.959ThrGln: 1.959 ± 0.055
1.732ThrArg: 1.732 ± 0.051
3.207ThrSer: 3.207 ± 0.07
3.092ThrThr: 3.092 ± 0.082
3.717ThrVal: 3.717 ± 0.081
0.459ThrTrp: 0.459 ± 0.028
2.31ThrTyr: 2.31 ± 0.064
0.0ThrXaa: 0.0 ± 0.0
Val
4.819ValAla: 4.819 ± 0.109
0.651ValCys: 0.651 ± 0.036
3.948ValAsp: 3.948 ± 0.077
4.755ValGlu: 4.755 ± 0.092
2.753ValPhe: 2.753 ± 0.078
4.247ValGly: 4.247 ± 0.105
1.329ValHis: 1.329 ± 0.049
5.083ValIle: 5.083 ± 0.092
4.614ValLys: 4.614 ± 0.095
6.299ValLeu: 6.299 ± 0.119
1.949ValMet: 1.949 ± 0.063
2.775ValAsn: 2.775 ± 0.064
2.29ValPro: 2.29 ± 0.061
1.9ValGln: 1.9 ± 0.055
2.165ValArg: 2.165 ± 0.06
4.216ValSer: 4.216 ± 0.09
3.728ValThr: 3.728 ± 0.091
4.654ValVal: 4.654 ± 0.101
0.597ValTrp: 0.597 ± 0.031
2.257ValTyr: 2.257 ± 0.065
0.0ValXaa: 0.0 ± 0.0
Trp
0.567TrpAla: 0.567 ± 0.031
0.107TrpCys: 0.107 ± 0.013
0.476TrpAsp: 0.476 ± 0.028
0.522TrpGlu: 0.522 ± 0.026
0.476TrpPhe: 0.476 ± 0.031
0.625TrpGly: 0.625 ± 0.032
0.218TrpHis: 0.218 ± 0.02
0.735TrpIle: 0.735 ± 0.033
0.575TrpLys: 0.575 ± 0.028
0.954TrpLeu: 0.954 ± 0.04
0.316TrpMet: 0.316 ± 0.025
0.356TrpAsn: 0.356 ± 0.024
0.208TrpPro: 0.208 ± 0.019
0.312TrpGln: 0.312 ± 0.022
0.295TrpArg: 0.295 ± 0.023
0.538TrpSer: 0.538 ± 0.034
0.392TrpThr: 0.392 ± 0.025
0.609TrpVal: 0.609 ± 0.033
0.124TrpTrp: 0.124 ± 0.015
0.381TrpTyr: 0.381 ± 0.021
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.762TyrAla: 2.762 ± 0.075
0.333TyrCys: 0.333 ± 0.022
2.627TyrAsp: 2.627 ± 0.068
2.835TyrGlu: 2.835 ± 0.069
2.012TyrPhe: 2.012 ± 0.059
2.546TyrGly: 2.546 ± 0.067
0.962TyrHis: 0.962 ± 0.043
2.87TyrIle: 2.87 ± 0.074
2.678TyrLys: 2.678 ± 0.075
3.875TyrLeu: 3.875 ± 0.08
0.979TyrMet: 0.979 ± 0.038
1.701TyrAsn: 1.701 ± 0.067
1.449TyrPro: 1.449 ± 0.049
1.398TyrGln: 1.398 ± 0.051
1.691TyrArg: 1.691 ± 0.05
2.197TyrSer: 2.197 ± 0.065
2.259TyrThr: 2.259 ± 0.065
2.049TyrVal: 2.049 ± 0.066
0.333TyrTrp: 0.333 ± 0.025
1.693TyrTyr: 1.693 ± 0.064
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 2114 proteins (643284 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