Amino acid dipepetide frequency for Polaromonas sp. C04

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
17.459AlaAla: 17.459 ± 0.207
1.36AlaCys: 1.36 ± 0.033
6.152AlaAsp: 6.152 ± 0.07
5.718AlaGlu: 5.718 ± 0.086
4.018AlaPhe: 4.018 ± 0.057
10.916AlaGly: 10.916 ± 0.11
2.812AlaHis: 2.812 ± 0.051
5.542AlaIle: 5.542 ± 0.074
3.857AlaLys: 3.857 ± 0.076
15.074AlaLeu: 15.074 ± 0.146
3.518AlaMet: 3.518 ± 0.053
2.842AlaAsn: 2.842 ± 0.047
6.117AlaPro: 6.117 ± 0.099
6.202AlaGln: 6.202 ± 0.091
8.966AlaArg: 8.966 ± 0.097
6.713AlaSer: 6.713 ± 0.078
6.251AlaThr: 6.251 ± 0.08
9.048AlaVal: 9.048 ± 0.105
1.874AlaTrp: 1.874 ± 0.041
2.549AlaTyr: 2.549 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
1.228CysAla: 1.228 ± 0.034
0.117CysCys: 0.117 ± 0.009
0.577CysAsp: 0.577 ± 0.021
0.512CysGlu: 0.512 ± 0.024
0.344CysPhe: 0.344 ± 0.016
1.012CysGly: 1.012 ± 0.033
0.267CysHis: 0.267 ± 0.018
0.474CysIle: 0.474 ± 0.02
0.245CysLys: 0.245 ± 0.012
0.854CysLeu: 0.854 ± 0.027
0.229CysMet: 0.229 ± 0.014
0.248CysAsn: 0.248 ± 0.016
0.506CysPro: 0.506 ± 0.022
0.286CysGln: 0.286 ± 0.017
0.57CysArg: 0.57 ± 0.022
0.531CysSer: 0.531 ± 0.02
0.531CysThr: 0.531 ± 0.019
0.769CysVal: 0.769 ± 0.028
0.116CysTrp: 0.116 ± 0.01
0.224CysTyr: 0.224 ± 0.014
0.0CysXaa: 0.0 ± 0.0
Asp
7.031AspAla: 7.031 ± 0.075
0.471AspCys: 0.471 ± 0.018
2.483AspAsp: 2.483 ± 0.053
2.979AspGlu: 2.979 ± 0.044
2.058AspPhe: 2.058 ± 0.046
4.214AspGly: 4.214 ± 0.075
1.101AspHis: 1.101 ± 0.032
2.482AspIle: 2.482 ± 0.051
1.866AspLys: 1.866 ± 0.043
5.235AspLeu: 5.235 ± 0.071
1.217AspMet: 1.217 ± 0.029
1.189AspAsn: 1.189 ± 0.031
2.84AspPro: 2.84 ± 0.054
1.571AspGln: 1.571 ± 0.036
2.961AspArg: 2.961 ± 0.054
2.277AspSer: 2.277 ± 0.038
2.526AspThr: 2.526 ± 0.05
4.073AspVal: 4.073 ± 0.065
0.879AspTrp: 0.879 ± 0.032
1.444AspTyr: 1.444 ± 0.038
0.0AspXaa: 0.0 ± 0.0
Glu
6.198GluAla: 6.198 ± 0.085
0.409GluCys: 0.409 ± 0.02
2.039GluAsp: 2.039 ± 0.048
2.229GluGlu: 2.229 ± 0.048
1.859GluPhe: 1.859 ± 0.041
3.432GluGly: 3.432 ± 0.062
1.358GluHis: 1.358 ± 0.032
2.687GluIle: 2.687 ± 0.055
1.945GluLys: 1.945 ± 0.045
5.673GluLeu: 5.673 ± 0.081
1.241GluMet: 1.241 ± 0.033
1.278GluAsn: 1.278 ± 0.036
2.463GluPro: 2.463 ± 0.042
2.427GluGln: 2.427 ± 0.052
4.219GluArg: 4.219 ± 0.068
2.427GluSer: 2.427 ± 0.038
2.358GluThr: 2.358 ± 0.044
3.959GluVal: 3.959 ± 0.059
0.652GluTrp: 0.652 ± 0.025
1.057GluTyr: 1.057 ± 0.032
0.0GluXaa: 0.0 ± 0.0
Phe
4.309PheAla: 4.309 ± 0.069
0.414PheCys: 0.414 ± 0.019
2.604PheAsp: 2.604 ± 0.054
2.16PheGlu: 2.16 ± 0.046
1.408PhePhe: 1.408 ± 0.038
3.646PheGly: 3.646 ± 0.068
0.747PheHis: 0.747 ± 0.023
1.604PheIle: 1.604 ± 0.039
1.363PheLys: 1.363 ± 0.033
2.969PheLeu: 2.969 ± 0.055
0.88PheMet: 0.88 ± 0.027
1.145PheAsn: 1.145 ± 0.031
1.597PhePro: 1.597 ± 0.038
1.011PheGln: 1.011 ± 0.028
1.828PheArg: 1.828 ± 0.036
2.231PheSer: 2.231 ± 0.048
1.891PheThr: 1.891 ± 0.046
2.842PheVal: 2.842 ± 0.053
0.552PheTrp: 0.552 ± 0.021
0.944PheTyr: 0.944 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
9.773GlyAla: 9.773 ± 0.096
0.902GlyCys: 0.902 ± 0.027
3.904GlyAsp: 3.904 ± 0.056
4.187GlyGlu: 4.187 ± 0.058
3.388GlyPhe: 3.388 ± 0.057
6.922GlyGly: 6.922 ± 0.097
1.994GlyHis: 1.994 ± 0.042
4.173GlyIle: 4.173 ± 0.062
3.477GlyLys: 3.477 ± 0.06
9.059GlyLeu: 9.059 ± 0.096
2.285GlyMet: 2.285 ± 0.042
2.237GlyAsn: 2.237 ± 0.059
3.184GlyPro: 3.184 ± 0.051
3.418GlyGln: 3.418 ± 0.063
5.266GlyArg: 5.266 ± 0.07
4.643GlySer: 4.643 ± 0.072
4.485GlyThr: 4.485 ± 0.059
6.804GlyVal: 6.804 ± 0.08
1.468GlyTrp: 1.468 ± 0.04
2.344GlyTyr: 2.344 ± 0.042
0.0GlyXaa: 0.0 ± 0.0
His
2.818HisAla: 2.818 ± 0.049
0.305HisCys: 0.305 ± 0.017
1.211HisAsp: 1.211 ± 0.032
1.19HisGlu: 1.19 ± 0.031
0.882HisPhe: 0.882 ± 0.028
2.21HisGly: 2.21 ± 0.046
0.624HisHis: 0.624 ± 0.024
1.042HisIle: 1.042 ± 0.028
0.653HisLys: 0.653 ± 0.025
2.285HisLeu: 2.285 ± 0.049
0.548HisMet: 0.548 ± 0.019
0.548HisAsn: 0.548 ± 0.02
1.466HisPro: 1.466 ± 0.037
0.748HisGln: 0.748 ± 0.026
1.496HisArg: 1.496 ± 0.038
1.1HisSer: 1.1 ± 0.033
1.11HisThr: 1.11 ± 0.027
1.599HisVal: 1.599 ± 0.038
0.425HisTrp: 0.425 ± 0.017
0.682HisTyr: 0.682 ± 0.025
0.0HisXaa: 0.0 ± 0.0
Ile
6.257IleAla: 6.257 ± 0.07
0.467IleCys: 0.467 ± 0.018
3.001IleAsp: 3.001 ± 0.052
3.169IleGlu: 3.169 ± 0.056
1.438IlePhe: 1.438 ± 0.035
4.319IleGly: 4.319 ± 0.064
0.916IleHis: 0.916 ± 0.029
1.724IleIle: 1.724 ± 0.04
1.729IleLys: 1.729 ± 0.041
3.627IleLeu: 3.627 ± 0.061
0.887IleMet: 0.887 ± 0.035
1.512IleAsn: 1.512 ± 0.035
2.22IlePro: 2.22 ± 0.041
1.392IleGln: 1.392 ± 0.034
2.784IleArg: 2.784 ± 0.049
2.549IleSer: 2.549 ± 0.048
2.642IleThr: 2.642 ± 0.045
3.751IleVal: 3.751 ± 0.056
0.483IleTrp: 0.483 ± 0.022
1.078IleTyr: 1.078 ± 0.032
0.0IleXaa: 0.0 ± 0.0
Lys
4.13LysAla: 4.13 ± 0.069
0.182LysCys: 0.182 ± 0.013
1.72LysAsp: 1.72 ± 0.045
1.595LysGlu: 1.595 ± 0.042
1.091LysPhe: 1.091 ± 0.035
2.496LysGly: 2.496 ± 0.049
0.673LysHis: 0.673 ± 0.024
1.753LysIle: 1.753 ± 0.043
1.56LysLys: 1.56 ± 0.045
3.692LysLeu: 3.692 ± 0.061
0.928LysMet: 0.928 ± 0.029
1.092LysAsn: 1.092 ± 0.03
2.139LysPro: 2.139 ± 0.052
1.224LysGln: 1.224 ± 0.034
2.236LysArg: 2.236 ± 0.045
1.916LysSer: 1.916 ± 0.045
2.284LysThr: 2.284 ± 0.041
2.646LysVal: 2.646 ± 0.05
0.415LysTrp: 0.415 ± 0.021
0.815LysTyr: 0.815 ± 0.028
0.0LysXaa: 0.0 ± 0.0
Leu
14.771LeuAla: 14.771 ± 0.161
1.102LeuCys: 1.102 ± 0.03
5.713LeuAsp: 5.713 ± 0.076
4.97LeuGlu: 4.97 ± 0.074
3.588LeuPhe: 3.588 ± 0.066
9.026LeuGly: 9.026 ± 0.106
2.433LeuHis: 2.433 ± 0.049
4.701LeuIle: 4.701 ± 0.073
3.851LeuLys: 3.851 ± 0.058
11.399LeuLeu: 11.399 ± 0.152
2.64LeuMet: 2.64 ± 0.054
2.894LeuAsn: 2.894 ± 0.05
5.855LeuPro: 5.855 ± 0.083
4.552LeuGln: 4.552 ± 0.071
7.278LeuArg: 7.278 ± 0.09
6.067LeuSer: 6.067 ± 0.08
5.505LeuThr: 5.505 ± 0.08
7.858LeuVal: 7.858 ± 0.101
1.356LeuTrp: 1.356 ± 0.036
2.125LeuTyr: 2.125 ± 0.049
0.0LeuXaa: 0.0 ± 0.0
Met
3.178MetAla: 3.178 ± 0.047
0.206MetCys: 0.206 ± 0.013
1.149MetAsp: 1.149 ± 0.031
1.059MetGlu: 1.059 ± 0.029
0.786MetPhe: 0.786 ± 0.024
1.949MetGly: 1.949 ± 0.041
0.581MetHis: 0.581 ± 0.022
1.106MetIle: 1.106 ± 0.033
1.164MetLys: 1.164 ± 0.033
2.713MetLeu: 2.713 ± 0.048
0.597MetMet: 0.597 ± 0.024
0.978MetAsn: 0.978 ± 0.024
1.446MetPro: 1.446 ± 0.032
1.114MetGln: 1.114 ± 0.029
1.65MetArg: 1.65 ± 0.036
1.57MetSer: 1.57 ± 0.041
1.619MetThr: 1.619 ± 0.036
1.758MetVal: 1.758 ± 0.038
0.221MetTrp: 0.221 ± 0.012
0.406MetTyr: 0.406 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.327AsnAla: 3.327 ± 0.056
0.276AsnCys: 0.276 ± 0.017
1.303AsnAsp: 1.303 ± 0.032
1.22AsnGlu: 1.22 ± 0.036
1.062AsnPhe: 1.062 ± 0.033
2.248AsnGly: 2.248 ± 0.051
0.556AsnHis: 0.556 ± 0.02
1.298AsnIle: 1.298 ± 0.034
0.856AsnLys: 0.856 ± 0.028
2.708AsnLeu: 2.708 ± 0.045
0.603AsnMet: 0.603 ± 0.022
0.803AsnAsn: 0.803 ± 0.031
1.953AsnPro: 1.953 ± 0.041
0.959AsnGln: 0.959 ± 0.026
1.605AsnArg: 1.605 ± 0.038
1.304AsnSer: 1.304 ± 0.036
1.479AsnThr: 1.479 ± 0.042
2.066AsnVal: 2.066 ± 0.047
0.47AsnTrp: 0.47 ± 0.02
0.744AsnTyr: 0.744 ± 0.024
0.0AsnXaa: 0.0 ± 0.0
Pro
7.049ProAla: 7.049 ± 0.098
0.398ProCys: 0.398 ± 0.018
3.067ProAsp: 3.067 ± 0.05
3.138ProGlu: 3.138 ± 0.051
1.816ProPhe: 1.816 ± 0.037
4.713ProGly: 4.713 ± 0.066
1.222ProHis: 1.222 ± 0.036
1.946ProIle: 1.946 ± 0.04
1.68ProLys: 1.68 ± 0.04
5.214ProLeu: 5.214 ± 0.072
1.304ProMet: 1.304 ± 0.036
1.384ProAsn: 1.384 ± 0.038
2.639ProPro: 2.639 ± 0.058
2.216ProGln: 2.216 ± 0.047
2.915ProArg: 2.915 ± 0.055
2.628ProSer: 2.628 ± 0.044
2.517ProThr: 2.517 ± 0.043
4.305ProVal: 4.305 ± 0.075
0.792ProTrp: 0.792 ± 0.027
1.195ProTyr: 1.195 ± 0.035
0.0ProXaa: 0.0 ± 0.0
Gln
5.834GlnAla: 5.834 ± 0.085
0.324GlnCys: 0.324 ± 0.016
1.75GlnAsp: 1.75 ± 0.044
1.629GlnGlu: 1.629 ± 0.04
1.336GlnPhe: 1.336 ± 0.032
3.143GlnGly: 3.143 ± 0.051
0.997GlnHis: 0.997 ± 0.027
1.937GlnIle: 1.937 ± 0.042
1.235GlnLys: 1.235 ± 0.03
4.291GlnLeu: 4.291 ± 0.061
1.015GlnMet: 1.015 ± 0.028
0.949GlnAsn: 0.949 ± 0.029
2.187GlnPro: 2.187 ± 0.043
1.973GlnGln: 1.973 ± 0.048
3.208GlnArg: 3.208 ± 0.057
2.113GlnSer: 2.113 ± 0.045
2.114GlnThr: 2.114 ± 0.049
3.064GlnVal: 3.064 ± 0.054
0.676GlnTrp: 0.676 ± 0.025
0.853GlnTyr: 0.853 ± 0.027
0.0GlnXaa: 0.0 ± 0.0
Arg
7.739ArgAla: 7.739 ± 0.098
0.556ArgCys: 0.556 ± 0.023
3.47ArgAsp: 3.47 ± 0.062
3.931ArgGlu: 3.931 ± 0.061
2.623ArgPhe: 2.623 ± 0.045
4.669ArgGly: 4.669 ± 0.067
1.755ArgHis: 1.755 ± 0.042
3.366ArgIle: 3.366 ± 0.055
2.184ArgLys: 2.184 ± 0.043
7.488ArgLeu: 7.488 ± 0.081
1.828ArgMet: 1.828 ± 0.038
1.733ArgAsn: 1.733 ± 0.042
3.069ArgPro: 3.069 ± 0.05
2.823ArgGln: 2.823 ± 0.05
4.744ArgArg: 4.744 ± 0.073
3.325ArgSer: 3.325 ± 0.055
3.01ArgThr: 3.01 ± 0.047
4.931ArgVal: 4.931 ± 0.074
1.076ArgTrp: 1.076 ± 0.034
1.786ArgTyr: 1.786 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
6.258SerAla: 6.258 ± 0.069
0.499SerCys: 0.499 ± 0.02
2.568SerAsp: 2.568 ± 0.048
2.365SerGlu: 2.365 ± 0.047
2.137SerPhe: 2.137 ± 0.041
5.231SerGly: 5.231 ± 0.067
1.168SerHis: 1.168 ± 0.032
2.555SerIle: 2.555 ± 0.051
1.649SerLys: 1.649 ± 0.04
5.695SerLeu: 5.695 ± 0.073
1.408SerMet: 1.408 ± 0.033
1.478SerAsn: 1.478 ± 0.039
2.938SerPro: 2.938 ± 0.047
1.965SerGln: 1.965 ± 0.045
3.423SerArg: 3.423 ± 0.049
2.997SerSer: 2.997 ± 0.049
2.885SerThr: 2.885 ± 0.052
4.126SerVal: 4.126 ± 0.068
0.728SerTrp: 0.728 ± 0.026
1.381SerTyr: 1.381 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
5.885ThrAla: 5.885 ± 0.07
0.459ThrCys: 0.459 ± 0.023
2.429ThrAsp: 2.429 ± 0.048
2.355ThrGlu: 2.355 ± 0.043
1.841ThrPhe: 1.841 ± 0.046
4.803ThrGly: 4.803 ± 0.078
1.289ThrHis: 1.289 ± 0.033
2.271ThrIle: 2.271 ± 0.046
1.35ThrLys: 1.35 ± 0.041
6.459ThrLeu: 6.459 ± 0.075
1.171ThrMet: 1.171 ± 0.03
1.27ThrAsn: 1.27 ± 0.04
3.551ThrPro: 3.551 ± 0.052
2.097ThrGln: 2.097 ± 0.045
3.309ThrArg: 3.309 ± 0.048
2.827ThrSer: 2.827 ± 0.055
2.827ThrThr: 2.827 ± 0.061
4.245ThrVal: 4.245 ± 0.064
0.676ThrTrp: 0.676 ± 0.025
1.112ThrTyr: 1.112 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
9.699ValAla: 9.699 ± 0.11
0.738ValCys: 0.738 ± 0.023
3.947ValAsp: 3.947 ± 0.061
3.83ValGlu: 3.83 ± 0.06
2.881ValPhe: 2.881 ± 0.057
5.836ValGly: 5.836 ± 0.065
1.607ValHis: 1.607 ± 0.038
3.719ValIle: 3.719 ± 0.058
2.604ValLys: 2.604 ± 0.058
8.576ValLeu: 8.576 ± 0.119
2.061ValMet: 2.061 ± 0.046
2.192ValAsn: 2.192 ± 0.047
4.048ValPro: 4.048 ± 0.056
3.021ValGln: 3.021 ± 0.054
4.818ValArg: 4.818 ± 0.07
4.13ValSer: 4.13 ± 0.058
4.226ValThr: 4.226 ± 0.062
6.345ValVal: 6.345 ± 0.082
1.031ValTrp: 1.031 ± 0.031
1.587ValTyr: 1.587 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
1.395TrpAla: 1.395 ± 0.036
0.186TrpCys: 0.186 ± 0.014
0.614TrpAsp: 0.614 ± 0.024
0.518TrpGlu: 0.518 ± 0.02
0.58TrpPhe: 0.58 ± 0.023
1.029TrpGly: 1.029 ± 0.031
0.358TrpHis: 0.358 ± 0.018
0.669TrpIle: 0.669 ± 0.025
0.496TrpLys: 0.496 ± 0.018
2.108TrpLeu: 2.108 ± 0.05
0.425TrpMet: 0.425 ± 0.02
0.426TrpAsn: 0.426 ± 0.018
0.701TrpPro: 0.701 ± 0.023
0.749TrpGln: 0.749 ± 0.024
1.192TrpArg: 1.192 ± 0.035
0.801TrpSer: 0.801 ± 0.029
0.68TrpThr: 0.68 ± 0.025
1.008TrpVal: 1.008 ± 0.032
0.276TrpTrp: 0.276 ± 0.014
0.332TrpTyr: 0.332 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.648TyrAla: 2.648 ± 0.047
0.272TyrCys: 0.272 ± 0.014
1.197TyrAsp: 1.197 ± 0.033
1.16TyrGlu: 1.16 ± 0.03
1.009TyrPhe: 1.009 ± 0.029
2.1TyrGly: 2.1 ± 0.038
0.485TyrHis: 0.485 ± 0.022
0.899TyrIle: 0.899 ± 0.029
0.824TyrLys: 0.824 ± 0.026
2.561TyrLeu: 2.561 ± 0.048
0.462TyrMet: 0.462 ± 0.021
0.64TyrAsn: 0.64 ± 0.024
1.221TyrPro: 1.221 ± 0.03
0.878TyrGln: 0.878 ± 0.03
1.637TyrArg: 1.637 ± 0.039
1.307TyrSer: 1.307 ± 0.032
1.286TyrThr: 1.286 ± 0.032
1.697TyrVal: 1.697 ± 0.038
0.376TyrTrp: 0.376 ± 0.019
0.602TyrTyr: 0.602 ± 0.025
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 3837 proteins (1239823 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