Amino acid dipepetide frequency for Polaromonas sp. CG9_12

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
15.898AlaAla: 15.898 ± 0.176
1.465AlaCys: 1.465 ± 0.038
6.031AlaAsp: 6.031 ± 0.068
5.9AlaGlu: 5.9 ± 0.088
4.041AlaPhe: 4.041 ± 0.054
10.566AlaGly: 10.566 ± 0.154
2.671AlaHis: 2.671 ± 0.053
5.132AlaIle: 5.132 ± 0.064
4.025AlaLys: 4.025 ± 0.07
14.357AlaLeu: 14.357 ± 0.151
3.644AlaMet: 3.644 ± 0.054
3.016AlaAsn: 3.016 ± 0.063
5.82AlaPro: 5.82 ± 0.104
6.104AlaGln: 6.104 ± 0.076
8.134AlaArg: 8.134 ± 0.102
7.589AlaSer: 7.589 ± 0.091
5.986AlaThr: 5.986 ± 0.098
8.648AlaVal: 8.648 ± 0.074
1.86AlaTrp: 1.86 ± 0.042
2.401AlaTyr: 2.401 ± 0.043
0.0AlaXaa: 0.0 ± 0.0
Cys
1.301CysAla: 1.301 ± 0.037
0.156CysCys: 0.156 ± 0.011
0.557CysAsp: 0.557 ± 0.021
0.579CysGlu: 0.579 ± 0.021
0.378CysPhe: 0.378 ± 0.016
0.968CysGly: 0.968 ± 0.028
0.318CysHis: 0.318 ± 0.016
0.502CysIle: 0.502 ± 0.021
0.29CysLys: 0.29 ± 0.016
1.007CysLeu: 1.007 ± 0.031
0.25CysMet: 0.25 ± 0.013
0.288CysAsn: 0.288 ± 0.017
0.541CysPro: 0.541 ± 0.025
0.366CysGln: 0.366 ± 0.018
0.675CysArg: 0.675 ± 0.025
0.563CysSer: 0.563 ± 0.021
0.514CysThr: 0.514 ± 0.022
0.71CysVal: 0.71 ± 0.023
0.187CysTrp: 0.187 ± 0.01
0.199CysTyr: 0.199 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.725AspAla: 6.725 ± 0.089
0.472AspCys: 0.472 ± 0.021
2.527AspAsp: 2.527 ± 0.05
3.037AspGlu: 3.037 ± 0.053
2.081AspPhe: 2.081 ± 0.042
4.077AspGly: 4.077 ± 0.072
0.999AspHis: 0.999 ± 0.026
2.618AspIle: 2.618 ± 0.057
1.897AspLys: 1.897 ± 0.042
5.106AspLeu: 5.106 ± 0.064
1.25AspMet: 1.25 ± 0.029
1.395AspAsn: 1.395 ± 0.037
2.465AspPro: 2.465 ± 0.054
1.697AspGln: 1.697 ± 0.037
2.934AspArg: 2.934 ± 0.057
2.51AspSer: 2.51 ± 0.047
2.467AspThr: 2.467 ± 0.045
3.772AspVal: 3.772 ± 0.061
0.949AspTrp: 0.949 ± 0.027
1.363AspTyr: 1.363 ± 0.034
0.0AspXaa: 0.0 ± 0.0
Glu
6.057GluAla: 6.057 ± 0.09
0.404GluCys: 0.404 ± 0.02
2.027GluAsp: 2.027 ± 0.042
2.322GluGlu: 2.322 ± 0.053
1.853GluPhe: 1.853 ± 0.04
3.438GluGly: 3.438 ± 0.053
1.272GluHis: 1.272 ± 0.032
2.705GluIle: 2.705 ± 0.044
2.463GluLys: 2.463 ± 0.056
5.65GluLeu: 5.65 ± 0.079
1.349GluMet: 1.349 ± 0.03
1.498GluAsn: 1.498 ± 0.032
2.259GluPro: 2.259 ± 0.046
2.459GluGln: 2.459 ± 0.058
4.039GluArg: 4.039 ± 0.07
2.738GluSer: 2.738 ± 0.049
2.558GluThr: 2.558 ± 0.042
3.799GluVal: 3.799 ± 0.059
0.686GluTrp: 0.686 ± 0.026
0.92GluTyr: 0.92 ± 0.03
0.0GluXaa: 0.0 ± 0.0
Phe
4.091PheAla: 4.091 ± 0.059
0.477PheCys: 0.477 ± 0.02
2.446PheAsp: 2.446 ± 0.04
2.096PheGlu: 2.096 ± 0.039
1.565PhePhe: 1.565 ± 0.044
3.288PheGly: 3.288 ± 0.053
0.768PheHis: 0.768 ± 0.025
1.691PheIle: 1.691 ± 0.035
1.443PheLys: 1.443 ± 0.037
3.131PheLeu: 3.131 ± 0.053
0.978PheMet: 0.978 ± 0.027
1.261PheAsn: 1.261 ± 0.035
1.539PhePro: 1.539 ± 0.039
1.098PheGln: 1.098 ± 0.03
1.849PheArg: 1.849 ± 0.039
2.622PheSer: 2.622 ± 0.047
1.937PheThr: 1.937 ± 0.036
2.646PheVal: 2.646 ± 0.043
0.521PheTrp: 0.521 ± 0.021
0.914PheTyr: 0.914 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
8.623GlyAla: 8.623 ± 0.13
0.972GlyCys: 0.972 ± 0.033
3.684GlyAsp: 3.684 ± 0.061
4.028GlyGlu: 4.028 ± 0.074
3.369GlyPhe: 3.369 ± 0.051
6.53GlyGly: 6.53 ± 0.122
1.912GlyHis: 1.912 ± 0.041
4.013GlyIle: 4.013 ± 0.063
3.736GlyLys: 3.736 ± 0.063
8.814GlyLeu: 8.814 ± 0.097
2.41GlyMet: 2.41 ± 0.041
2.435GlyAsn: 2.435 ± 0.102
2.871GlyPro: 2.871 ± 0.051
3.73GlyGln: 3.73 ± 0.051
5.042GlyArg: 5.042 ± 0.078
4.841GlySer: 4.841 ± 0.102
4.399GlyThr: 4.399 ± 0.106
6.195GlyVal: 6.195 ± 0.08
1.432GlyTrp: 1.432 ± 0.035
2.226GlyTyr: 2.226 ± 0.043
0.0GlyXaa: 0.0 ± 0.0
His
2.833HisAla: 2.833 ± 0.06
0.343HisCys: 0.343 ± 0.015
1.167HisAsp: 1.167 ± 0.03
1.233HisGlu: 1.233 ± 0.032
0.883HisPhe: 0.883 ± 0.027
2.013HisGly: 2.013 ± 0.046
0.686HisHis: 0.686 ± 0.025
1.046HisIle: 1.046 ± 0.029
0.659HisLys: 0.659 ± 0.025
2.212HisLeu: 2.212 ± 0.044
0.496HisMet: 0.496 ± 0.019
0.538HisAsn: 0.538 ± 0.022
1.402HisPro: 1.402 ± 0.036
0.923HisGln: 0.923 ± 0.026
1.459HisArg: 1.459 ± 0.036
1.151HisSer: 1.151 ± 0.031
1.039HisThr: 1.039 ± 0.03
1.514HisVal: 1.514 ± 0.036
0.406HisTrp: 0.406 ± 0.019
0.62HisTyr: 0.62 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
5.991IleAla: 5.991 ± 0.076
0.48IleCys: 0.48 ± 0.018
3.101IleAsp: 3.101 ± 0.058
3.124IleGlu: 3.124 ± 0.055
1.472IlePhe: 1.472 ± 0.033
4.071IleGly: 4.071 ± 0.062
0.909IleHis: 0.909 ± 0.029
1.778IleIle: 1.778 ± 0.047
1.8IleLys: 1.8 ± 0.038
3.403IleLeu: 3.403 ± 0.056
0.81IleMet: 0.81 ± 0.028
1.658IleAsn: 1.658 ± 0.047
2.072IlePro: 2.072 ± 0.041
1.357IleGln: 1.357 ± 0.036
2.624IleArg: 2.624 ± 0.045
2.738IleSer: 2.738 ± 0.056
2.75IleThr: 2.75 ± 0.083
3.312IleVal: 3.312 ± 0.052
0.495IleTrp: 0.495 ± 0.017
1.078IleTyr: 1.078 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
4.575LysAla: 4.575 ± 0.075
0.214LysCys: 0.214 ± 0.014
1.858LysAsp: 1.858 ± 0.041
1.708LysGlu: 1.708 ± 0.039
1.164LysPhe: 1.164 ± 0.031
2.75LysGly: 2.75 ± 0.05
0.739LysHis: 0.739 ± 0.025
1.807LysIle: 1.807 ± 0.039
1.825LysLys: 1.825 ± 0.052
3.953LysLeu: 3.953 ± 0.061
1.011LysMet: 1.011 ± 0.027
1.415LysAsn: 1.415 ± 0.036
2.364LysPro: 2.364 ± 0.049
1.364LysGln: 1.364 ± 0.034
2.41LysArg: 2.41 ± 0.047
2.286LysSer: 2.286 ± 0.045
2.471LysThr: 2.471 ± 0.051
2.836LysVal: 2.836 ± 0.05
0.374LysTrp: 0.374 ± 0.018
0.733LysTyr: 0.733 ± 0.025
0.0LysXaa: 0.0 ± 0.0
Leu
14.216LeuAla: 14.216 ± 0.156
1.057LeuCys: 1.057 ± 0.029
5.65LeuAsp: 5.65 ± 0.071
5.108LeuGlu: 5.108 ± 0.067
3.519LeuPhe: 3.519 ± 0.059
8.419LeuGly: 8.419 ± 0.086
2.331LeuHis: 2.331 ± 0.056
4.445LeuIle: 4.445 ± 0.058
4.436LeuLys: 4.436 ± 0.062
11.362LeuLeu: 11.362 ± 0.141
2.764LeuMet: 2.764 ± 0.05
3.198LeuAsn: 3.198 ± 0.06
6.086LeuPro: 6.086 ± 0.083
4.68LeuGln: 4.68 ± 0.064
7.03LeuArg: 7.03 ± 0.094
6.39LeuSer: 6.39 ± 0.082
5.459LeuThr: 5.459 ± 0.091
7.709LeuVal: 7.709 ± 0.084
1.29LeuTrp: 1.29 ± 0.037
2.094LeuTyr: 2.094 ± 0.043
0.0LeuXaa: 0.0 ± 0.0
Met
3.504MetAla: 3.504 ± 0.054
0.188MetCys: 0.188 ± 0.012
1.225MetAsp: 1.225 ± 0.034
1.083MetGlu: 1.083 ± 0.029
0.77MetPhe: 0.77 ± 0.026
2.014MetGly: 2.014 ± 0.042
0.565MetHis: 0.565 ± 0.018
1.026MetIle: 1.026 ± 0.029
1.185MetLys: 1.185 ± 0.036
2.835MetLeu: 2.835 ± 0.054
0.659MetMet: 0.659 ± 0.027
1.051MetAsn: 1.051 ± 0.026
1.602MetPro: 1.602 ± 0.036
1.225MetGln: 1.225 ± 0.029
1.695MetArg: 1.695 ± 0.038
1.496MetSer: 1.496 ± 0.034
1.657MetThr: 1.657 ± 0.038
1.875MetVal: 1.875 ± 0.04
0.202MetTrp: 0.202 ± 0.012
0.384MetTyr: 0.384 ± 0.02
0.0MetXaa: 0.0 ± 0.0
Asn
3.656AsnAla: 3.656 ± 0.079
0.309AsnCys: 0.309 ± 0.016
1.38AsnAsp: 1.38 ± 0.035
1.336AsnGlu: 1.336 ± 0.034
1.137AsnPhe: 1.137 ± 0.031
2.435AsnGly: 2.435 ± 0.063
0.623AsnHis: 0.623 ± 0.019
1.402AsnIle: 1.402 ± 0.046
1.049AsnLys: 1.049 ± 0.032
2.944AsnLeu: 2.944 ± 0.069
0.686AsnMet: 0.686 ± 0.023
0.875AsnAsn: 0.875 ± 0.033
2.024AsnPro: 2.024 ± 0.039
1.12AsnGln: 1.12 ± 0.031
1.75AsnArg: 1.75 ± 0.04
1.525AsnSer: 1.525 ± 0.041
1.667AsnThr: 1.667 ± 0.059
2.032AsnVal: 2.032 ± 0.069
0.447AsnTrp: 0.447 ± 0.018
0.741AsnTyr: 0.741 ± 0.027
0.0AsnXaa: 0.0 ± 0.0
Pro
6.981ProAla: 6.981 ± 0.11
0.48ProCys: 0.48 ± 0.024
3.091ProAsp: 3.091 ± 0.042
3.172ProGlu: 3.172 ± 0.055
1.791ProPhe: 1.791 ± 0.041
4.707ProGly: 4.707 ± 0.07
1.066ProHis: 1.066 ± 0.032
1.775ProIle: 1.775 ± 0.039
1.687ProLys: 1.687 ± 0.033
5.17ProLeu: 5.17 ± 0.077
1.33ProMet: 1.33 ± 0.035
1.277ProAsn: 1.277 ± 0.027
2.517ProPro: 2.517 ± 0.061
2.094ProGln: 2.094 ± 0.039
2.636ProArg: 2.636 ± 0.049
2.801ProSer: 2.801 ± 0.048
2.483ProThr: 2.483 ± 0.05
4.245ProVal: 4.245 ± 0.073
0.761ProTrp: 0.761 ± 0.026
1.11ProTyr: 1.11 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
6.314GlnAla: 6.314 ± 0.08
0.377GlnCys: 0.377 ± 0.017
1.8GlnAsp: 1.8 ± 0.038
1.752GlnGlu: 1.752 ± 0.041
1.4GlnPhe: 1.4 ± 0.034
3.384GlnGly: 3.384 ± 0.054
1.03GlnHis: 1.03 ± 0.031
1.908GlnIle: 1.908 ± 0.042
1.459GlnLys: 1.459 ± 0.037
4.473GlnLeu: 4.473 ± 0.068
1.047GlnMet: 1.047 ± 0.027
1.041GlnAsn: 1.041 ± 0.032
2.331GlnPro: 2.331 ± 0.05
1.956GlnGln: 1.956 ± 0.044
3.324GlnArg: 3.324 ± 0.054
2.344GlnSer: 2.344 ± 0.047
2.281GlnThr: 2.281 ± 0.043
3.157GlnVal: 3.157 ± 0.053
0.661GlnTrp: 0.661 ± 0.022
0.74GlnTyr: 0.74 ± 0.026
0.0GlnXaa: 0.0 ± 0.0
Arg
6.759ArgAla: 6.759 ± 0.078
0.679ArgCys: 0.679 ± 0.025
3.159ArgAsp: 3.159 ± 0.057
3.55ArgGlu: 3.55 ± 0.059
2.623ArgPhe: 2.623 ± 0.045
4.121ArgGly: 4.121 ± 0.064
1.875ArgHis: 1.875 ± 0.042
3.5ArgIle: 3.5 ± 0.056
2.416ArgLys: 2.416 ± 0.051
7.676ArgLeu: 7.676 ± 0.095
1.808ArgMet: 1.808 ± 0.043
1.781ArgAsn: 1.781 ± 0.036
3.081ArgPro: 3.081 ± 0.061
3.348ArgGln: 3.348 ± 0.064
4.382ArgArg: 4.382 ± 0.076
3.454ArgSer: 3.454 ± 0.05
3.015ArgThr: 3.015 ± 0.056
4.455ArgVal: 4.455 ± 0.063
1.112ArgTrp: 1.112 ± 0.029
1.729ArgTyr: 1.729 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
6.967SerAla: 6.967 ± 0.104
0.59SerCys: 0.59 ± 0.024
2.746SerAsp: 2.746 ± 0.045
2.739SerGlu: 2.739 ± 0.048
2.2SerPhe: 2.2 ± 0.04
5.491SerGly: 5.491 ± 0.094
1.294SerHis: 1.294 ± 0.033
2.563SerIle: 2.563 ± 0.061
1.946SerLys: 1.946 ± 0.043
6.135SerLeu: 6.135 ± 0.078
1.585SerMet: 1.585 ± 0.034
1.613SerAsn: 1.613 ± 0.042
3.098SerPro: 3.098 ± 0.053
2.272SerGln: 2.272 ± 0.047
3.923SerArg: 3.923 ± 0.062
3.549SerSer: 3.549 ± 0.063
3.092SerThr: 3.092 ± 0.066
4.267SerVal: 4.267 ± 0.085
0.808SerTrp: 0.808 ± 0.028
1.29SerTyr: 1.29 ± 0.03
0.0SerXaa: 0.0 ± 0.0
Thr
6.15ThrAla: 6.15 ± 0.11
0.481ThrCys: 0.481 ± 0.021
2.551ThrAsp: 2.551 ± 0.039
2.311ThrGlu: 2.311 ± 0.043
1.827ThrPhe: 1.827 ± 0.043
5.081ThrGly: 5.081 ± 0.121
1.185ThrHis: 1.185 ± 0.03
2.166ThrIle: 2.166 ± 0.056
1.421ThrLys: 1.421 ± 0.036
6.486ThrLeu: 6.486 ± 0.12
1.138ThrMet: 1.138 ± 0.031
1.348ThrAsn: 1.348 ± 0.047
3.647ThrPro: 3.647 ± 0.051
2.15ThrGln: 2.15 ± 0.041
3.163ThrArg: 3.163 ± 0.051
2.96ThrSer: 2.96 ± 0.064
2.944ThrThr: 2.944 ± 0.082
4.237ThrVal: 4.237 ± 0.085
0.565ThrTrp: 0.565 ± 0.019
1.039ThrTyr: 1.039 ± 0.03
0.0ThrXaa: 0.0 ± 0.0
Val
8.773ValAla: 8.773 ± 0.088
0.771ValCys: 0.771 ± 0.025
3.606ValAsp: 3.606 ± 0.056
3.799ValGlu: 3.799 ± 0.06
2.799ValPhe: 2.799 ± 0.053
5.172ValGly: 5.172 ± 0.081
1.558ValHis: 1.558 ± 0.035
3.514ValIle: 3.514 ± 0.055
2.823ValLys: 2.823 ± 0.049
8.03ValLeu: 8.03 ± 0.083
2.161ValMet: 2.161 ± 0.039
2.428ValAsn: 2.428 ± 0.062
3.711ValPro: 3.711 ± 0.058
3.09ValGln: 3.09 ± 0.055
4.649ValArg: 4.649 ± 0.059
4.429ValSer: 4.429 ± 0.072
4.102ValThr: 4.102 ± 0.104
6.059ValVal: 6.059 ± 0.082
0.996ValTrp: 0.996 ± 0.027
1.528ValTyr: 1.528 ± 0.034
0.0ValXaa: 0.0 ± 0.0
Trp
1.356TrpAla: 1.356 ± 0.035
0.188TrpCys: 0.188 ± 0.01
0.62TrpAsp: 0.62 ± 0.02
0.502TrpGlu: 0.502 ± 0.018
0.54TrpPhe: 0.54 ± 0.024
0.863TrpGly: 0.863 ± 0.029
0.367TrpHis: 0.367 ± 0.017
0.645TrpIle: 0.645 ± 0.024
0.526TrpLys: 0.526 ± 0.022
2.128TrpLeu: 2.128 ± 0.05
0.43TrpMet: 0.43 ± 0.021
0.401TrpAsn: 0.401 ± 0.022
0.657TrpPro: 0.657 ± 0.024
0.815TrpGln: 0.815 ± 0.031
1.169TrpArg: 1.169 ± 0.033
0.845TrpSer: 0.845 ± 0.026
0.796TrpThr: 0.796 ± 0.027
0.989TrpVal: 0.989 ± 0.025
0.262TrpTrp: 0.262 ± 0.016
0.278TrpTyr: 0.278 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.52TyrAla: 2.52 ± 0.045
0.245TyrCys: 0.245 ± 0.014
1.117TyrAsp: 1.117 ± 0.029
1.116TyrGlu: 1.116 ± 0.029
0.948TyrPhe: 0.948 ± 0.024
1.871TyrGly: 1.871 ± 0.04
0.456TyrHis: 0.456 ± 0.018
0.786TyrIle: 0.786 ± 0.028
0.769TyrLys: 0.769 ± 0.03
2.373TyrLeu: 2.373 ± 0.038
0.436TyrMet: 0.436 ± 0.017
0.622TyrAsn: 0.622 ± 0.023
1.086TyrPro: 1.086 ± 0.027
0.931TyrGln: 0.931 ± 0.025
1.638TyrArg: 1.638 ± 0.037
1.333TyrSer: 1.333 ± 0.031
1.233TyrThr: 1.233 ± 0.03
1.545TyrVal: 1.545 ± 0.026
0.363TyrTrp: 0.363 ± 0.017
0.518TyrTyr: 0.518 ± 0.022
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 4739 proteins (1363628 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