Amino acid dipepetide frequency for Herbaspirillum sp. YR522

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
17.089AlaAla: 17.089 ± 0.168
1.154AlaCys: 1.154 ± 0.032
6.513AlaAsp: 6.513 ± 0.067
5.977AlaGlu: 5.977 ± 0.074
3.826AlaPhe: 3.826 ± 0.048
10.725AlaGly: 10.725 ± 0.139
2.532AlaHis: 2.532 ± 0.047
5.933AlaIle: 5.933 ± 0.071
3.245AlaLys: 3.245 ± 0.064
14.128AlaLeu: 14.128 ± 0.134
3.519AlaMet: 3.519 ± 0.048
3.131AlaAsn: 3.131 ± 0.062
5.776AlaPro: 5.776 ± 0.086
5.86AlaGln: 5.86 ± 0.071
8.872AlaArg: 8.872 ± 0.097
7.098AlaSer: 7.098 ± 0.086
6.007AlaThr: 6.007 ± 0.071
8.334AlaVal: 8.334 ± 0.08
1.601AlaTrp: 1.601 ± 0.036
2.549AlaTyr: 2.549 ± 0.045
0.0AlaXaa: 0.0 ± 0.0
Cys
1.029CysAla: 1.029 ± 0.028
0.11CysCys: 0.11 ± 0.009
0.511CysAsp: 0.511 ± 0.019
0.437CysGlu: 0.437 ± 0.017
0.297CysPhe: 0.297 ± 0.014
0.874CysGly: 0.874 ± 0.026
0.24CysHis: 0.24 ± 0.014
0.394CysIle: 0.394 ± 0.017
0.2CysLys: 0.2 ± 0.012
0.824CysLeu: 0.824 ± 0.026
0.177CysMet: 0.177 ± 0.012
0.25CysAsn: 0.25 ± 0.013
0.371CysPro: 0.371 ± 0.016
0.263CysGln: 0.263 ± 0.013
0.563CysArg: 0.563 ± 0.019
0.489CysSer: 0.489 ± 0.019
0.414CysThr: 0.414 ± 0.019
0.62CysVal: 0.62 ± 0.021
0.112CysTrp: 0.112 ± 0.008
0.203CysTyr: 0.203 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.728AspAla: 6.728 ± 0.079
0.443AspCys: 0.443 ± 0.015
3.339AspAsp: 3.339 ± 0.062
3.064AspGlu: 3.064 ± 0.045
2.088AspPhe: 2.088 ± 0.041
4.783AspGly: 4.783 ± 0.068
1.129AspHis: 1.129 ± 0.03
3.086AspIle: 3.086 ± 0.042
1.77AspLys: 1.77 ± 0.044
5.345AspLeu: 5.345 ± 0.063
1.3AspMet: 1.3 ± 0.028
1.577AspAsn: 1.577 ± 0.04
2.689AspPro: 2.689 ± 0.048
2.107AspGln: 2.107 ± 0.042
3.33AspArg: 3.33 ± 0.054
2.65AspSer: 2.65 ± 0.049
2.783AspThr: 2.783 ± 0.086
3.885AspVal: 3.885 ± 0.052
0.849AspTrp: 0.849 ± 0.026
1.528AspTyr: 1.528 ± 0.034
0.0AspXaa: 0.0 ± 0.0
Glu
5.607GluAla: 5.607 ± 0.067
0.333GluCys: 0.333 ± 0.014
2.011GluAsp: 2.011 ± 0.04
2.368GluGlu: 2.368 ± 0.055
1.731GluPhe: 1.731 ± 0.037
3.113GluGly: 3.113 ± 0.056
1.276GluHis: 1.276 ± 0.03
2.971GluIle: 2.971 ± 0.05
1.954GluLys: 1.954 ± 0.043
5.906GluLeu: 5.906 ± 0.071
1.215GluMet: 1.215 ± 0.032
1.43GluAsn: 1.43 ± 0.045
2.172GluPro: 2.172 ± 0.037
3.217GluGln: 3.217 ± 0.054
4.287GluArg: 4.287 ± 0.059
2.313GluSer: 2.313 ± 0.035
2.19GluThr: 2.19 ± 0.041
3.812GluVal: 3.812 ± 0.054
0.591GluTrp: 0.591 ± 0.02
0.986GluTyr: 0.986 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
4.032PheAla: 4.032 ± 0.053
0.394PheCys: 0.394 ± 0.018
2.507PheAsp: 2.507 ± 0.04
1.945PheGlu: 1.945 ± 0.04
1.382PhePhe: 1.382 ± 0.039
3.391PheGly: 3.391 ± 0.048
0.706PheHis: 0.706 ± 0.024
1.718PheIle: 1.718 ± 0.04
1.179PheLys: 1.179 ± 0.03
2.937PheLeu: 2.937 ± 0.052
0.899PheMet: 0.899 ± 0.03
1.207PheAsn: 1.207 ± 0.032
1.413PhePro: 1.413 ± 0.032
1.091PheGln: 1.091 ± 0.026
1.77PheArg: 1.77 ± 0.032
2.465PheSer: 2.465 ± 0.045
1.86PheThr: 1.86 ± 0.038
2.761PheVal: 2.761 ± 0.047
0.466PheTrp: 0.466 ± 0.017
0.98PheTyr: 0.98 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
9.188GlyAla: 9.188 ± 0.121
0.726GlyCys: 0.726 ± 0.024
4.077GlyAsp: 4.077 ± 0.078
4.031GlyGlu: 4.031 ± 0.055
3.234GlyPhe: 3.234 ± 0.053
6.824GlyGly: 6.824 ± 0.138
1.893GlyHis: 1.893 ± 0.036
4.312GlyIle: 4.312 ± 0.06
3.262GlyLys: 3.262 ± 0.061
8.326GlyLeu: 8.326 ± 0.072
2.438GlyMet: 2.438 ± 0.042
2.835GlyAsn: 2.835 ± 0.122
2.757GlyPro: 2.757 ± 0.054
3.664GlyGln: 3.664 ± 0.056
5.39GlyArg: 5.39 ± 0.065
4.784GlySer: 4.784 ± 0.079
4.297GlyThr: 4.297 ± 0.084
6.267GlyVal: 6.267 ± 0.067
1.262GlyTrp: 1.262 ± 0.029
2.272GlyTyr: 2.272 ± 0.04
0.0GlyXaa: 0.0 ± 0.0
His
2.782HisAla: 2.782 ± 0.049
0.25HisCys: 0.25 ± 0.013
1.375HisAsp: 1.375 ± 0.031
1.042HisGlu: 1.042 ± 0.026
0.917HisPhe: 0.917 ± 0.029
2.132HisGly: 2.132 ± 0.045
0.651HisHis: 0.651 ± 0.025
1.044HisIle: 1.044 ± 0.025
0.543HisLys: 0.543 ± 0.021
2.236HisLeu: 2.236 ± 0.042
0.512HisMet: 0.512 ± 0.016
0.508HisAsn: 0.508 ± 0.018
1.379HisPro: 1.379 ± 0.035
0.907HisGln: 0.907 ± 0.027
1.418HisArg: 1.418 ± 0.031
1.085HisSer: 1.085 ± 0.029
0.976HisThr: 0.976 ± 0.025
1.51HisVal: 1.51 ± 0.029
0.395HisTrp: 0.395 ± 0.017
0.684HisTyr: 0.684 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
6.708IleAla: 6.708 ± 0.069
0.456IleCys: 0.456 ± 0.018
3.701IleAsp: 3.701 ± 0.052
3.199IleGlu: 3.199 ± 0.056
1.486IlePhe: 1.486 ± 0.033
4.845IleGly: 4.845 ± 0.069
0.898IleHis: 0.898 ± 0.024
2.041IleIle: 2.041 ± 0.044
1.837IleLys: 1.837 ± 0.042
3.952IleLeu: 3.952 ± 0.059
0.906IleMet: 0.906 ± 0.025
1.753IleAsn: 1.753 ± 0.037
2.063IlePro: 2.063 ± 0.04
1.36IleGln: 1.36 ± 0.032
2.727IleArg: 2.727 ± 0.044
2.968IleSer: 2.968 ± 0.05
2.656IleThr: 2.656 ± 0.05
3.965IleVal: 3.965 ± 0.052
0.546IleTrp: 0.546 ± 0.017
1.148IleTyr: 1.148 ± 0.027
0.0IleXaa: 0.0 ± 0.0
Lys
3.372LysAla: 3.372 ± 0.055
0.169LysCys: 0.169 ± 0.013
1.581LysAsp: 1.581 ± 0.042
1.507LysGlu: 1.507 ± 0.039
0.991LysPhe: 0.991 ± 0.031
2.159LysGly: 2.159 ± 0.041
0.607LysHis: 0.607 ± 0.021
1.745LysIle: 1.745 ± 0.034
1.63LysLys: 1.63 ± 0.039
3.616LysLeu: 3.616 ± 0.051
0.895LysMet: 0.895 ± 0.026
1.115LysAsn: 1.115 ± 0.031
2.015LysPro: 2.015 ± 0.046
1.508LysGln: 1.508 ± 0.037
2.077LysArg: 2.077 ± 0.039
1.983LysSer: 1.983 ± 0.044
1.871LysThr: 1.871 ± 0.036
2.449LysVal: 2.449 ± 0.05
0.371LysTrp: 0.371 ± 0.019
0.695LysTyr: 0.695 ± 0.023
0.0LysXaa: 0.0 ± 0.0
Leu
14.731LeuAla: 14.731 ± 0.131
1.005LeuCys: 1.005 ± 0.027
6.049LeuAsp: 6.049 ± 0.075
5.121LeuGlu: 5.121 ± 0.068
3.516LeuPhe: 3.516 ± 0.059
8.424LeuGly: 8.424 ± 0.089
2.383LeuHis: 2.383 ± 0.045
4.393LeuIle: 4.393 ± 0.065
3.628LeuLys: 3.628 ± 0.055
11.667LeuLeu: 11.667 ± 0.136
2.555LeuMet: 2.555 ± 0.04
2.966LeuAsn: 2.966 ± 0.044
5.946LeuPro: 5.946 ± 0.075
4.838LeuGln: 4.838 ± 0.073
7.215LeuArg: 7.215 ± 0.083
6.588LeuSer: 6.588 ± 0.067
5.18LeuThr: 5.18 ± 0.066
7.934LeuVal: 7.934 ± 0.097
1.175LeuTrp: 1.175 ± 0.028
2.209LeuTyr: 2.209 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
2.984MetAla: 2.984 ± 0.048
0.169MetCys: 0.169 ± 0.012
1.071MetAsp: 1.071 ± 0.029
1.06MetGlu: 1.06 ± 0.028
0.782MetPhe: 0.782 ± 0.024
1.714MetGly: 1.714 ± 0.039
0.582MetHis: 0.582 ± 0.02
1.145MetIle: 1.145 ± 0.032
1.099MetLys: 1.099 ± 0.029
2.966MetLeu: 2.966 ± 0.046
0.679MetMet: 0.679 ± 0.023
0.917MetAsn: 0.917 ± 0.029
1.5MetPro: 1.5 ± 0.031
1.326MetGln: 1.326 ± 0.028
1.73MetArg: 1.73 ± 0.035
1.86MetSer: 1.86 ± 0.035
1.562MetThr: 1.562 ± 0.031
1.749MetVal: 1.749 ± 0.039
0.206MetTrp: 0.206 ± 0.013
0.41MetTyr: 0.41 ± 0.017
0.0MetXaa: 0.0 ± 0.0
Asn
3.611AsnAla: 3.611 ± 0.054
0.25AsnCys: 0.25 ± 0.014
1.616AsnAsp: 1.616 ± 0.085
1.287AsnGlu: 1.287 ± 0.031
1.081AsnPhe: 1.081 ± 0.031
2.679AsnGly: 2.679 ± 0.061
0.606AsnHis: 0.606 ± 0.019
1.545AsnIle: 1.545 ± 0.038
0.961AsnLys: 0.961 ± 0.03
3.042AsnLeu: 3.042 ± 0.052
0.69AsnMet: 0.69 ± 0.022
1.015AsnAsn: 1.015 ± 0.037
1.74AsnPro: 1.74 ± 0.038
1.155AsnGln: 1.155 ± 0.03
1.804AsnArg: 1.804 ± 0.035
1.457AsnSer: 1.457 ± 0.042
1.588AsnThr: 1.588 ± 0.045
2.169AsnVal: 2.169 ± 0.052
0.416AsnTrp: 0.416 ± 0.02
0.797AsnTyr: 0.797 ± 0.03
0.0AsnXaa: 0.0 ± 0.0
Pro
6.413ProAla: 6.413 ± 0.09
0.284ProCys: 0.284 ± 0.013
2.941ProAsp: 2.941 ± 0.048
2.756ProGlu: 2.756 ± 0.044
1.677ProPhe: 1.677 ± 0.039
4.211ProGly: 4.211 ± 0.059
1.138ProHis: 1.138 ± 0.026
1.926ProIle: 1.926 ± 0.034
1.269ProLys: 1.269 ± 0.033
5.104ProLeu: 5.104 ± 0.076
1.205ProMet: 1.205 ± 0.029
1.211ProAsn: 1.211 ± 0.03
2.36ProPro: 2.36 ± 0.059
2.309ProGln: 2.309 ± 0.046
2.785ProArg: 2.785 ± 0.049
2.685ProSer: 2.685 ± 0.047
2.396ProThr: 2.396 ± 0.047
3.965ProVal: 3.965 ± 0.06
0.659ProTrp: 0.659 ± 0.02
1.166ProTyr: 1.166 ± 0.027
0.0ProXaa: 0.0 ± 0.0
Gln
6.425GlnAla: 6.425 ± 0.083
0.302GlnCys: 0.302 ± 0.014
1.931GlnAsp: 1.931 ± 0.038
1.779GlnGlu: 1.779 ± 0.038
1.446GlnPhe: 1.446 ± 0.034
3.211GlnGly: 3.211 ± 0.046
1.152GlnHis: 1.152 ± 0.026
2.062GlnIle: 2.062 ± 0.04
1.34GlnLys: 1.34 ± 0.034
4.916GlnLeu: 4.916 ± 0.069
1.125GlnMet: 1.125 ± 0.025
1.043GlnAsn: 1.043 ± 0.035
2.195GlnPro: 2.195 ± 0.04
2.918GlnGln: 2.918 ± 0.062
3.713GlnArg: 3.713 ± 0.064
2.3GlnSer: 2.3 ± 0.041
1.872GlnThr: 1.872 ± 0.038
3.493GlnVal: 3.493 ± 0.05
0.719GlnTrp: 0.719 ± 0.019
1.022GlnTyr: 1.022 ± 0.03
0.0GlnXaa: 0.0 ± 0.0
Arg
7.496ArgAla: 7.496 ± 0.097
0.518ArgCys: 0.518 ± 0.019
3.659ArgAsp: 3.659 ± 0.057
3.658ArgGlu: 3.658 ± 0.061
2.624ArgPhe: 2.624 ± 0.045
4.409ArgGly: 4.409 ± 0.066
1.96ArgHis: 1.96 ± 0.037
3.865ArgIle: 3.865 ± 0.058
2.06ArgLys: 2.06 ± 0.039
7.598ArgLeu: 7.598 ± 0.099
1.89ArgMet: 1.89 ± 0.034
2.063ArgAsn: 2.063 ± 0.038
2.937ArgPro: 2.937 ± 0.051
3.738ArgGln: 3.738 ± 0.058
5.139ArgArg: 5.139 ± 0.065
3.631ArgSer: 3.631 ± 0.056
3.033ArgThr: 3.033 ± 0.044
4.579ArgVal: 4.579 ± 0.058
0.992ArgTrp: 0.992 ± 0.029
1.886ArgTyr: 1.886 ± 0.04
0.0ArgXaa: 0.0 ± 0.0
Ser
6.844SerAla: 6.844 ± 0.084
0.426SerCys: 0.426 ± 0.017
2.913SerAsp: 2.913 ± 0.047
2.52SerGlu: 2.52 ± 0.043
2.181SerPhe: 2.181 ± 0.04
5.435SerGly: 5.435 ± 0.078
1.287SerHis: 1.287 ± 0.031
2.913SerIle: 2.913 ± 0.042
1.596SerLys: 1.596 ± 0.039
6.217SerLeu: 6.217 ± 0.063
1.455SerMet: 1.455 ± 0.032
1.784SerAsn: 1.784 ± 0.044
2.706SerPro: 2.706 ± 0.05
2.195SerGln: 2.195 ± 0.043
3.596SerArg: 3.596 ± 0.054
3.672SerSer: 3.672 ± 0.071
3.19SerThr: 3.19 ± 0.052
4.158SerVal: 4.158 ± 0.064
0.766SerTrp: 0.766 ± 0.022
1.461SerTyr: 1.461 ± 0.043
0.0SerXaa: 0.0 ± 0.0
Thr
5.791ThrAla: 5.791 ± 0.071
0.368ThrCys: 0.368 ± 0.018
2.608ThrAsp: 2.608 ± 0.043
2.276ThrGlu: 2.276 ± 0.038
1.62ThrPhe: 1.62 ± 0.04
4.452ThrGly: 4.452 ± 0.092
1.062ThrHis: 1.062 ± 0.027
2.563ThrIle: 2.563 ± 0.042
1.154ThrLys: 1.154 ± 0.03
6.181ThrLeu: 6.181 ± 0.092
1.215ThrMet: 1.215 ± 0.03
1.374ThrAsn: 1.374 ± 0.038
3.158ThrPro: 3.158 ± 0.048
1.859ThrGln: 1.859 ± 0.039
3.321ThrArg: 3.321 ± 0.044
2.83ThrSer: 2.83 ± 0.046
2.719ThrThr: 2.719 ± 0.052
4.194ThrVal: 4.194 ± 0.071
0.597ThrTrp: 0.597 ± 0.021
1.246ThrTyr: 1.246 ± 0.035
0.0ThrXaa: 0.0 ± 0.0
Val
9.346ValAla: 9.346 ± 0.081
0.647ValCys: 0.647 ± 0.023
4.123ValAsp: 4.123 ± 0.051
3.937ValGlu: 3.937 ± 0.059
2.624ValPhe: 2.624 ± 0.046
5.6ValGly: 5.6 ± 0.069
1.346ValHis: 1.346 ± 0.032
3.975ValIle: 3.975 ± 0.062
2.47ValLys: 2.47 ± 0.047
8.001ValLeu: 8.001 ± 0.088
1.95ValMet: 1.95 ± 0.036
2.189ValAsn: 2.189 ± 0.054
3.503ValPro: 3.503 ± 0.053
2.707ValGln: 2.707 ± 0.047
4.914ValArg: 4.914 ± 0.065
4.362ValSer: 4.362 ± 0.06
4.184ValThr: 4.184 ± 0.061
6.22ValVal: 6.22 ± 0.074
0.825ValTrp: 0.825 ± 0.028
1.571ValTyr: 1.571 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
1.063TrpAla: 1.063 ± 0.028
0.136TrpCys: 0.136 ± 0.008
0.559TrpAsp: 0.559 ± 0.02
0.462TrpGlu: 0.462 ± 0.016
0.558TrpPhe: 0.558 ± 0.018
0.805TrpGly: 0.805 ± 0.025
0.391TrpHis: 0.391 ± 0.017
0.682TrpIle: 0.682 ± 0.023
0.447TrpLys: 0.447 ± 0.017
1.908TrpLeu: 1.908 ± 0.043
0.396TrpMet: 0.396 ± 0.016
0.456TrpAsn: 0.456 ± 0.019
0.594TrpPro: 0.594 ± 0.024
0.827TrpGln: 0.827 ± 0.026
1.144TrpArg: 1.144 ± 0.031
0.779TrpSer: 0.779 ± 0.022
0.61TrpThr: 0.61 ± 0.021
0.808TrpVal: 0.808 ± 0.029
0.203TrpTrp: 0.203 ± 0.012
0.287TrpTyr: 0.287 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.634TyrAla: 2.634 ± 0.048
0.238TyrCys: 0.238 ± 0.013
1.389TyrAsp: 1.389 ± 0.028
1.057TyrGlu: 1.057 ± 0.03
1.044TyrPhe: 1.044 ± 0.027
2.049TyrGly: 2.049 ± 0.039
0.507TyrHis: 0.507 ± 0.019
0.903TyrIle: 0.903 ± 0.026
0.709TyrLys: 0.709 ± 0.021
2.653TyrLeu: 2.653 ± 0.042
0.492TyrMet: 0.492 ± 0.019
0.684TyrAsn: 0.684 ± 0.023
1.185TyrPro: 1.185 ± 0.027
1.113TyrGln: 1.113 ± 0.029
1.941TyrArg: 1.941 ± 0.04
1.314TyrSer: 1.314 ± 0.032
1.199TyrThr: 1.199 ± 0.03
1.625TyrVal: 1.625 ± 0.036
0.363TyrTrp: 0.363 ± 0.017
0.625TyrTyr: 0.625 ± 0.023
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 4612 proteins (1510888 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