Amino acid dipepetide frequency for Lysobacter sp. TY2-98

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
17.764AlaAla: 17.764 ± 0.224
1.191AlaCys: 1.191 ± 0.038
7.468AlaAsp: 7.468 ± 0.091
6.477AlaGlu: 6.477 ± 0.108
4.304AlaPhe: 4.304 ± 0.079
10.472AlaGly: 10.472 ± 0.118
2.884AlaHis: 2.884 ± 0.06
5.828AlaIle: 5.828 ± 0.082
3.839AlaLys: 3.839 ± 0.096
14.955AlaLeu: 14.955 ± 0.171
3.643AlaMet: 3.643 ± 0.065
3.058AlaAsn: 3.058 ± 0.066
6.8AlaPro: 6.8 ± 0.13
5.067AlaGln: 5.067 ± 0.074
10.475AlaArg: 10.475 ± 0.14
7.183AlaSer: 7.183 ± 0.104
7.322AlaThr: 7.322 ± 0.094
9.138AlaVal: 9.138 ± 0.112
1.971AlaTrp: 1.971 ± 0.055
2.53AlaTyr: 2.53 ± 0.059
0.0AlaXaa: 0.0 ± 0.0
Cys
1.026CysAla: 1.026 ± 0.039
0.092CysCys: 0.092 ± 0.009
0.529CysAsp: 0.529 ± 0.024
0.484CysGlu: 0.484 ± 0.026
0.236CysPhe: 0.236 ± 0.014
0.911CysGly: 0.911 ± 0.032
0.224CysHis: 0.224 ± 0.014
0.346CysIle: 0.346 ± 0.021
0.17CysLys: 0.17 ± 0.013
0.612CysLeu: 0.612 ± 0.029
0.125CysMet: 0.125 ± 0.012
0.212CysAsn: 0.212 ± 0.015
0.408CysPro: 0.408 ± 0.022
0.162CysGln: 0.162 ± 0.013
0.586CysArg: 0.586 ± 0.025
0.401CysSer: 0.401 ± 0.02
0.464CysThr: 0.464 ± 0.026
0.698CysVal: 0.698 ± 0.028
0.114CysTrp: 0.114 ± 0.011
0.174CysTyr: 0.174 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
10.508AspAla: 10.508 ± 0.124
0.452AspCys: 0.452 ± 0.025
4.21AspAsp: 4.21 ± 0.083
3.645AspGlu: 3.645 ± 0.066
2.107AspPhe: 2.107 ± 0.047
6.109AspGly: 6.109 ± 0.117
1.227AspHis: 1.227 ± 0.038
2.509AspIle: 2.509 ± 0.049
1.386AspLys: 1.386 ± 0.047
5.648AspLeu: 5.648 ± 0.095
1.132AspMet: 1.132 ± 0.034
1.219AspAsn: 1.219 ± 0.035
3.524AspPro: 3.524 ± 0.068
1.398AspGln: 1.398 ± 0.042
4.849AspArg: 4.849 ± 0.084
2.429AspSer: 2.429 ± 0.055
3.152AspThr: 3.152 ± 0.079
5.644AspVal: 5.644 ± 0.075
1.094AspTrp: 1.094 ± 0.039
1.605AspTyr: 1.605 ± 0.044
0.0AspXaa: 0.0 ± 0.0
Glu
6.769GluAla: 6.769 ± 0.1
0.333GluCys: 0.333 ± 0.022
2.323GluAsp: 2.323 ± 0.049
2.161GluGlu: 2.161 ± 0.059
1.876GluPhe: 1.876 ± 0.048
3.751GluGly: 3.751 ± 0.076
1.395GluHis: 1.395 ± 0.037
2.457GluIle: 2.457 ± 0.052
1.498GluLys: 1.498 ± 0.047
5.87GluLeu: 5.87 ± 0.089
1.185GluMet: 1.185 ± 0.039
1.201GluAsn: 1.201 ± 0.037
2.533GluPro: 2.533 ± 0.056
2.146GluGln: 2.146 ± 0.06
5.429GluArg: 5.429 ± 0.089
2.644GluSer: 2.644 ± 0.05
2.672GluThr: 2.672 ± 0.053
3.729GluVal: 3.729 ± 0.073
0.679GluTrp: 0.679 ± 0.028
1.001GluTyr: 1.001 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
4.406PheAla: 4.406 ± 0.067
0.286PheCys: 0.286 ± 0.017
3.095PheAsp: 3.095 ± 0.071
2.007PheGlu: 2.007 ± 0.052
1.15PhePhe: 1.15 ± 0.039
3.339PheGly: 3.339 ± 0.061
0.711PheHis: 0.711 ± 0.027
1.196PheIle: 1.196 ± 0.039
0.826PheLys: 0.826 ± 0.037
2.842PheLeu: 2.842 ± 0.063
0.628PheMet: 0.628 ± 0.027
0.999PheAsn: 0.999 ± 0.035
1.393PhePro: 1.393 ± 0.039
0.846PheGln: 0.846 ± 0.03
2.155PheArg: 2.155 ± 0.047
1.69PheSer: 1.69 ± 0.043
1.67PheThr: 1.67 ± 0.044
2.857PheVal: 2.857 ± 0.047
0.441PheTrp: 0.441 ± 0.023
0.801PheTyr: 0.801 ± 0.03
0.0PheXaa: 0.0 ± 0.0
Gly
9.726GlyAla: 9.726 ± 0.115
0.79GlyCys: 0.79 ± 0.033
5.413GlyAsp: 5.413 ± 0.101
4.544GlyGlu: 4.544 ± 0.072
3.176GlyPhe: 3.176 ± 0.06
7.205GlyGly: 7.205 ± 0.158
2.083GlyHis: 2.083 ± 0.05
3.729GlyIle: 3.729 ± 0.064
2.658GlyLys: 2.658 ± 0.071
8.383GlyLeu: 8.383 ± 0.104
2.183GlyMet: 2.183 ± 0.056
2.159GlyAsn: 2.159 ± 0.103
3.104GlyPro: 3.104 ± 0.066
2.637GlyGln: 2.637 ± 0.057
6.643GlyArg: 6.643 ± 0.095
4.229GlySer: 4.229 ± 0.083
4.697GlyThr: 4.697 ± 0.096
6.713GlyVal: 6.713 ± 0.092
1.528GlyTrp: 1.528 ± 0.046
2.286GlyTyr: 2.286 ± 0.059
0.0GlyXaa: 0.0 ± 0.0
His
3.233HisAla: 3.233 ± 0.068
0.247HisCys: 0.247 ± 0.015
1.546HisAsp: 1.546 ± 0.039
1.185HisGlu: 1.185 ± 0.036
0.863HisPhe: 0.863 ± 0.03
2.281HisGly: 2.281 ± 0.051
0.59HisHis: 0.59 ± 0.03
0.759HisIle: 0.759 ± 0.026
0.42HisLys: 0.42 ± 0.023
2.126HisLeu: 2.126 ± 0.053
0.519HisMet: 0.519 ± 0.024
0.41HisAsn: 0.41 ± 0.02
1.424HisPro: 1.424 ± 0.038
0.564HisGln: 0.564 ± 0.024
1.896HisArg: 1.896 ± 0.047
0.93HisSer: 0.93 ± 0.034
0.96HisThr: 0.96 ± 0.031
1.965HisVal: 1.965 ± 0.049
0.386HisTrp: 0.386 ± 0.022
0.596HisTyr: 0.596 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
6.987IleAla: 6.987 ± 0.093
0.342IleCys: 0.342 ± 0.019
3.68IleAsp: 3.68 ± 0.061
3.086IleGlu: 3.086 ± 0.057
1.001IlePhe: 1.001 ± 0.036
4.235IleGly: 4.235 ± 0.066
0.736IleHis: 0.736 ± 0.025
1.216IleIle: 1.216 ± 0.044
1.066IleLys: 1.066 ± 0.041
2.747IleLeu: 2.747 ± 0.058
0.471IleMet: 0.471 ± 0.022
1.15IleAsn: 1.15 ± 0.037
2.058IlePro: 2.058 ± 0.049
0.99IleGln: 0.99 ± 0.036
2.825IleArg: 2.825 ± 0.054
1.927IleSer: 1.927 ± 0.058
2.233IleThr: 2.233 ± 0.05
3.61IleVal: 3.61 ± 0.065
0.371IleTrp: 0.371 ± 0.02
0.819IleTyr: 0.819 ± 0.033
0.0IleXaa: 0.0 ± 0.0
Lys
3.31LysAla: 3.31 ± 0.083
0.162LysCys: 0.162 ± 0.016
1.483LysAsp: 1.483 ± 0.052
1.107LysGlu: 1.107 ± 0.041
0.774LysPhe: 0.774 ± 0.035
1.971LysGly: 1.971 ± 0.061
0.62LysHis: 0.62 ± 0.025
1.102LysIle: 1.102 ± 0.041
1.102LysLys: 1.102 ± 0.066
2.884LysLeu: 2.884 ± 0.06
0.599LysMet: 0.599 ± 0.031
0.721LysAsn: 0.721 ± 0.035
1.828LysPro: 1.828 ± 0.054
1.088LysGln: 1.088 ± 0.037
2.089LysArg: 2.089 ± 0.053
1.498LysSer: 1.498 ± 0.052
1.537LysThr: 1.537 ± 0.06
1.994LysVal: 1.994 ± 0.058
0.309LysTrp: 0.309 ± 0.02
0.613LysTyr: 0.613 ± 0.03
0.0LysXaa: 0.0 ± 0.0
Leu
14.557LeuAla: 14.557 ± 0.169
0.829LeuCys: 0.829 ± 0.026
7.23LeuAsp: 7.23 ± 0.113
5.153LeuGlu: 5.153 ± 0.074
3.125LeuPhe: 3.125 ± 0.065
8.228LeuGly: 8.228 ± 0.099
2.51LeuHis: 2.51 ± 0.058
3.787LeuIle: 3.787 ± 0.074
2.704LeuLys: 2.704 ± 0.064
10.445LeuLeu: 10.445 ± 0.141
2.192LeuMet: 2.192 ± 0.054
2.109LeuAsn: 2.109 ± 0.046
5.842LeuPro: 5.842 ± 0.088
3.432LeuGln: 3.432 ± 0.078
8.741LeuArg: 8.741 ± 0.109
5.349LeuSer: 5.349 ± 0.084
5.012LeuThr: 5.012 ± 0.085
8.071LeuVal: 8.071 ± 0.122
1.264LeuTrp: 1.264 ± 0.042
2.038LeuTyr: 2.038 ± 0.041
0.0LeuXaa: 0.0 ± 0.0
Met
2.637MetAla: 2.637 ± 0.059
0.134MetCys: 0.134 ± 0.011
1.151MetAsp: 1.151 ± 0.032
0.882MetGlu: 0.882 ± 0.03
0.677MetPhe: 0.677 ± 0.033
1.494MetGly: 1.494 ± 0.046
0.607MetHis: 0.607 ± 0.026
0.831MetIle: 0.831 ± 0.032
0.804MetLys: 0.804 ± 0.028
2.471MetLeu: 2.471 ± 0.054
0.446MetMet: 0.446 ± 0.023
0.627MetAsn: 0.627 ± 0.029
1.618MetPro: 1.618 ± 0.042
0.861MetGln: 0.861 ± 0.033
2.103MetArg: 2.103 ± 0.049
1.616MetSer: 1.616 ± 0.037
1.554MetThr: 1.554 ± 0.043
1.452MetVal: 1.452 ± 0.04
0.249MetTrp: 0.249 ± 0.015
0.403MetTyr: 0.403 ± 0.02
0.0MetXaa: 0.0 ± 0.0
Asn
3.505AsnAla: 3.505 ± 0.079
0.226AsnCys: 0.226 ± 0.017
1.54AsnAsp: 1.54 ± 0.064
1.153AsnGlu: 1.153 ± 0.038
0.834AsnPhe: 0.834 ± 0.033
2.401AsnGly: 2.401 ± 0.06
0.419AsnHis: 0.419 ± 0.02
0.976AsnIle: 0.976 ± 0.035
0.537AsnLys: 0.537 ± 0.031
2.261AsnLeu: 2.261 ± 0.054
0.374AsnMet: 0.374 ± 0.019
0.622AsnAsn: 0.622 ± 0.03
1.697AsnPro: 1.697 ± 0.041
0.602AsnGln: 0.602 ± 0.03
1.702AsnArg: 1.702 ± 0.041
1.031AsnSer: 1.031 ± 0.042
1.25AsnThr: 1.25 ± 0.04
1.975AsnVal: 1.975 ± 0.054
0.362AsnTrp: 0.362 ± 0.022
0.571AsnTyr: 0.571 ± 0.029
0.0AsnXaa: 0.0 ± 0.0
Pro
6.985ProAla: 6.985 ± 0.11
0.304ProCys: 0.304 ± 0.018
3.779ProAsp: 3.779 ± 0.074
2.972ProGlu: 2.972 ± 0.065
1.632ProPhe: 1.632 ± 0.047
4.498ProGly: 4.498 ± 0.087
1.202ProHis: 1.202 ± 0.033
2.013ProIle: 2.013 ± 0.05
1.526ProLys: 1.526 ± 0.047
5.141ProLeu: 5.141 ± 0.088
1.365ProMet: 1.365 ± 0.038
1.349ProAsn: 1.349 ± 0.04
2.914ProPro: 2.914 ± 0.081
1.841ProGln: 1.841 ± 0.052
3.676ProArg: 3.676 ± 0.071
2.981ProSer: 2.981 ± 0.066
2.939ProThr: 2.939 ± 0.059
4.441ProVal: 4.441 ± 0.067
0.776ProTrp: 0.776 ± 0.031
1.142ProTyr: 1.142 ± 0.037
0.0ProXaa: 0.0 ± 0.0
Gln
4.415GlnAla: 4.415 ± 0.086
0.24GlnCys: 0.24 ± 0.017
1.419GlnAsp: 1.419 ± 0.045
1.103GlnGlu: 1.103 ± 0.039
1.066GlnPhe: 1.066 ± 0.032
2.342GlnGly: 2.342 ± 0.049
0.8GlnHis: 0.8 ± 0.031
1.436GlnIle: 1.436 ± 0.044
0.944GlnLys: 0.944 ± 0.038
3.794GlnLeu: 3.794 ± 0.074
0.835GlnMet: 0.835 ± 0.029
0.743GlnAsn: 0.743 ± 0.027
1.856GlnPro: 1.856 ± 0.047
1.6GlnGln: 1.6 ± 0.06
3.286GlnArg: 3.286 ± 0.064
1.721GlnSer: 1.721 ± 0.047
1.451GlnThr: 1.451 ± 0.044
2.666GlnVal: 2.666 ± 0.061
0.499GlnTrp: 0.499 ± 0.021
0.696GlnTyr: 0.696 ± 0.031
0.0GlnXaa: 0.0 ± 0.0
Arg
9.639ArgAla: 9.639 ± 0.133
0.615ArgCys: 0.615 ± 0.028
5.602ArgAsp: 5.602 ± 0.08
4.982ArgGlu: 4.982 ± 0.09
2.984ArgPhe: 2.984 ± 0.051
5.816ArgGly: 5.816 ± 0.09
1.901ArgHis: 1.901 ± 0.052
4.065ArgIle: 4.065 ± 0.072
1.856ArgLys: 1.856 ± 0.063
8.634ArgLeu: 8.634 ± 0.122
2.107ArgMet: 2.107 ± 0.048
1.91ArgAsn: 1.91 ± 0.051
3.706ArgPro: 3.706 ± 0.074
2.482ArgGln: 2.482 ± 0.059
6.792ArgArg: 6.792 ± 0.111
3.71ArgSer: 3.71 ± 0.072
3.869ArgThr: 3.869 ± 0.064
6.361ArgVal: 6.361 ± 0.092
1.439ArgTrp: 1.439 ± 0.042
2.156ArgTyr: 2.156 ± 0.052
0.0ArgXaa: 0.0 ± 0.0
Ser
6.061SerAla: 6.061 ± 0.094
0.37SerCys: 0.37 ± 0.02
2.818SerAsp: 2.818 ± 0.06
2.322SerGlu: 2.322 ± 0.053
1.781SerPhe: 1.781 ± 0.044
4.891SerGly: 4.891 ± 0.083
1.133SerHis: 1.133 ± 0.035
2.173SerIle: 2.173 ± 0.044
1.554SerLys: 1.554 ± 0.049
5.188SerLeu: 5.188 ± 0.092
1.233SerMet: 1.233 ± 0.037
1.425SerAsn: 1.425 ± 0.049
2.865SerPro: 2.865 ± 0.06
1.723SerGln: 1.723 ± 0.045
4.015SerArg: 4.015 ± 0.069
2.839SerSer: 2.839 ± 0.071
3.19SerThr: 3.19 ± 0.069
3.618SerVal: 3.618 ± 0.068
0.687SerTrp: 0.687 ± 0.025
1.142SerTyr: 1.142 ± 0.031
0.0SerXaa: 0.0 ± 0.0
Thr
6.282ThrAla: 6.282 ± 0.084
0.395ThrCys: 0.395 ± 0.02
2.889ThrAsp: 2.889 ± 0.059
2.197ThrGlu: 2.197 ± 0.05
1.771ThrPhe: 1.771 ± 0.048
4.998ThrGly: 4.998 ± 0.1
1.212ThrHis: 1.212 ± 0.037
2.2ThrIle: 2.2 ± 0.05
1.179ThrLys: 1.179 ± 0.042
6.157ThrLeu: 6.157 ± 0.106
1.05ThrMet: 1.05 ± 0.036
1.12ThrAsn: 1.12 ± 0.04
3.99ThrPro: 3.99 ± 0.079
1.684ThrGln: 1.684 ± 0.045
3.923ThrArg: 3.923 ± 0.071
2.83ThrSer: 2.83 ± 0.07
3.137ThrThr: 3.137 ± 0.081
4.14ThrVal: 4.14 ± 0.079
0.739ThrTrp: 0.739 ± 0.03
1.242ThrTyr: 1.242 ± 0.045
0.0ThrXaa: 0.0 ± 0.0
Val
10.414ValAla: 10.414 ± 0.125
0.639ValCys: 0.639 ± 0.027
5.602ValAsp: 5.602 ± 0.081
4.622ValGlu: 4.622 ± 0.07
2.568ValPhe: 2.568 ± 0.055
5.959ValGly: 5.959 ± 0.087
1.87ValHis: 1.87 ± 0.041
3.469ValIle: 3.469 ± 0.066
1.781ValLys: 1.781 ± 0.056
8.366ValLeu: 8.366 ± 0.106
1.7ValMet: 1.7 ± 0.045
2.003ValAsn: 2.003 ± 0.052
4.105ValPro: 4.105 ± 0.066
2.491ValGln: 2.491 ± 0.055
6.018ValArg: 6.018 ± 0.105
3.887ValSer: 3.887 ± 0.063
4.017ValThr: 4.017 ± 0.077
6.789ValVal: 6.789 ± 0.098
0.871ValTrp: 0.871 ± 0.029
1.449ValTyr: 1.449 ± 0.042
0.0ValXaa: 0.0 ± 0.0
Trp
1.308TrpAla: 1.308 ± 0.039
0.141TrpCys: 0.141 ± 0.012
0.666TrpAsp: 0.666 ± 0.03
0.476TrpGlu: 0.476 ± 0.023
0.569TrpPhe: 0.569 ± 0.027
0.865TrpGly: 0.865 ± 0.029
0.339TrpHis: 0.339 ± 0.02
0.745TrpIle: 0.745 ± 0.027
0.433TrpLys: 0.433 ± 0.024
2.002TrpLeu: 2.002 ± 0.055
0.439TrpMet: 0.439 ± 0.024
0.441TrpAsn: 0.441 ± 0.02
0.737TrpPro: 0.737 ± 0.03
0.585TrpGln: 0.585 ± 0.024
1.379TrpArg: 1.379 ± 0.045
0.956TrpSer: 0.956 ± 0.036
0.809TrpThr: 0.809 ± 0.029
0.933TrpVal: 0.933 ± 0.031
0.292TrpTrp: 0.292 ± 0.019
0.324TrpTyr: 0.324 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.838TyrAla: 2.838 ± 0.054
0.185TyrCys: 0.185 ± 0.014
1.406TyrAsp: 1.406 ± 0.048
1.095TyrGlu: 1.095 ± 0.036
0.843TyrPhe: 0.843 ± 0.035
2.121TyrGly: 2.121 ± 0.057
0.436TyrHis: 0.436 ± 0.019
0.715TyrIle: 0.715 ± 0.029
0.51TyrLys: 0.51 ± 0.026
2.092TyrLeu: 2.092 ± 0.04
0.388TyrMet: 0.388 ± 0.021
0.56TyrAsn: 0.56 ± 0.03
1.072TyrPro: 1.072 ± 0.036
0.713TyrGln: 0.713 ± 0.028
2.043TyrArg: 2.043 ± 0.051
1.177TyrSer: 1.177 ± 0.038
1.2TyrThr: 1.2 ± 0.038
1.826TyrVal: 1.826 ± 0.044
0.369TyrTrp: 0.369 ± 0.019
0.597TyrTyr: 0.597 ± 0.03
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 2919 proteins (942600 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