Amino acid dipepetide frequency for Sphingomonas sp. HDW15C

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
19.337AlaAla: 19.337 ± 0.267
0.988AlaCys: 0.988 ± 0.041
7.489AlaAsp: 7.489 ± 0.098
7.959AlaGlu: 7.959 ± 0.145
4.278AlaPhe: 4.278 ± 0.083
11.301AlaGly: 11.301 ± 0.154
2.103AlaHis: 2.103 ± 0.066
6.888AlaIle: 6.888 ± 0.111
4.535AlaLys: 4.535 ± 0.094
13.774AlaLeu: 13.774 ± 0.189
3.631AlaMet: 3.631 ± 0.08
3.097AlaAsn: 3.097 ± 0.075
6.137AlaPro: 6.137 ± 0.125
4.467AlaGln: 4.467 ± 0.106
9.35AlaArg: 9.35 ± 0.161
6.608AlaSer: 6.608 ± 0.106
6.195AlaThr: 6.195 ± 0.107
8.897AlaVal: 8.897 ± 0.156
1.478AlaTrp: 1.478 ± 0.058
2.485AlaTyr: 2.485 ± 0.069
0.0AlaXaa: 0.0 ± 0.0
Cys
1.041CysAla: 1.041 ± 0.049
0.059CysCys: 0.059 ± 0.01
0.49CysAsp: 0.49 ± 0.029
0.389CysGlu: 0.389 ± 0.025
0.278CysPhe: 0.278 ± 0.021
0.891CysGly: 0.891 ± 0.039
0.162CysHis: 0.162 ± 0.014
0.328CysIle: 0.328 ± 0.022
0.214CysLys: 0.214 ± 0.02
0.678CysLeu: 0.678 ± 0.036
0.101CysMet: 0.101 ± 0.012
0.206CysAsn: 0.206 ± 0.02
0.412CysPro: 0.412 ± 0.031
0.159CysGln: 0.159 ± 0.015
0.515CysArg: 0.515 ± 0.03
0.47CysSer: 0.47 ± 0.028
0.395CysThr: 0.395 ± 0.024
0.564CysVal: 0.564 ± 0.031
0.103CysTrp: 0.103 ± 0.014
0.156CysTyr: 0.156 ± 0.017
0.0CysXaa: 0.0 ± 0.0
Asp
7.152AspAla: 7.152 ± 0.121
0.482AspCys: 0.482 ± 0.031
3.338AspAsp: 3.338 ± 0.096
3.95AspGlu: 3.95 ± 0.087
2.281AspPhe: 2.281 ± 0.063
5.455AspGly: 5.455 ± 0.102
1.133AspHis: 1.133 ± 0.046
2.718AspIle: 2.718 ± 0.078
1.78AspLys: 1.78 ± 0.053
5.642AspLeu: 5.642 ± 0.095
1.179AspMet: 1.179 ± 0.045
1.344AspAsn: 1.344 ± 0.057
3.784AspPro: 3.784 ± 0.089
1.964AspGln: 1.964 ± 0.059
5.094AspArg: 5.094 ± 0.101
2.768AspSer: 2.768 ± 0.067
2.371AspThr: 2.371 ± 0.057
4.104AspVal: 4.104 ± 0.087
1.063AspTrp: 1.063 ± 0.052
1.532AspTyr: 1.532 ± 0.057
0.0AspXaa: 0.0 ± 0.0
Glu
8.095GluAla: 8.095 ± 0.139
0.409GluCys: 0.409 ± 0.028
2.766GluAsp: 2.766 ± 0.067
3.193GluGlu: 3.193 ± 0.081
1.647GluPhe: 1.647 ± 0.05
4.423GluGly: 4.423 ± 0.099
1.165GluHis: 1.165 ± 0.044
2.876GluIle: 2.876 ± 0.071
1.998GluLys: 1.998 ± 0.062
5.865GluLeu: 5.865 ± 0.106
1.461GluMet: 1.461 ± 0.051
1.31GluAsn: 1.31 ± 0.051
2.969GluPro: 2.969 ± 0.063
2.473GluGln: 2.473 ± 0.08
5.73GluArg: 5.73 ± 0.108
2.509GluSer: 2.509 ± 0.068
2.923GluThr: 2.923 ± 0.069
3.925GluVal: 3.925 ± 0.099
0.774GluTrp: 0.774 ± 0.038
0.966GluTyr: 0.966 ± 0.044
0.0GluXaa: 0.0 ± 0.0
Phe
4.922PheAla: 4.922 ± 0.088
0.286PheCys: 0.286 ± 0.022
2.718PheAsp: 2.718 ± 0.074
2.083PheGlu: 2.083 ± 0.053
1.258PhePhe: 1.258 ± 0.047
3.56PheGly: 3.56 ± 0.074
0.646PheHis: 0.646 ± 0.031
1.558PheIle: 1.558 ± 0.045
0.954PheLys: 0.954 ± 0.043
3.063PheLeu: 3.063 ± 0.083
0.632PheMet: 0.632 ± 0.033
1.057PheAsn: 1.057 ± 0.04
1.433PhePro: 1.433 ± 0.043
0.916PheGln: 0.916 ± 0.034
2.24PheArg: 2.24 ± 0.058
1.976PheSer: 1.976 ± 0.065
1.923PheThr: 1.923 ± 0.06
2.79PheVal: 2.79 ± 0.066
0.486PheTrp: 0.486 ± 0.031
0.907PheTyr: 0.907 ± 0.037
0.0PheXaa: 0.0 ± 0.0
Gly
9.829GlyAla: 9.829 ± 0.145
0.86GlyCys: 0.86 ± 0.042
5.138GlyAsp: 5.138 ± 0.099
5.152GlyGlu: 5.152 ± 0.105
3.56GlyPhe: 3.56 ± 0.083
8.224GlyGly: 8.224 ± 0.158
1.755GlyHis: 1.755 ± 0.052
4.348GlyIle: 4.348 ± 0.085
3.639GlyLys: 3.639 ± 0.093
8.254GlyLeu: 8.254 ± 0.122
2.167GlyMet: 2.167 ± 0.059
2.25GlyAsn: 2.25 ± 0.074
3.836GlyPro: 3.836 ± 0.069
3.115GlyGln: 3.115 ± 0.08
6.546GlyArg: 6.546 ± 0.11
5.202GlySer: 5.202 ± 0.089
4.621GlyThr: 4.621 ± 0.111
6.151GlyVal: 6.151 ± 0.101
1.599GlyTrp: 1.599 ± 0.047
2.153GlyTyr: 2.153 ± 0.059
0.0GlyXaa: 0.0 ± 0.0
His
2.092HisAla: 2.092 ± 0.061
0.231HisCys: 0.231 ± 0.018
1.019HisAsp: 1.019 ± 0.045
0.946HisGlu: 0.946 ± 0.037
0.798HisPhe: 0.798 ± 0.035
1.855HisGly: 1.855 ± 0.06
0.486HisHis: 0.486 ± 0.028
0.831HisIle: 0.831 ± 0.041
0.486HisLys: 0.486 ± 0.028
1.822HisLeu: 1.822 ± 0.05
0.378HisMet: 0.378 ± 0.024
0.414HisAsn: 0.414 ± 0.028
1.236HisPro: 1.236 ± 0.052
0.55HisGln: 0.55 ± 0.033
1.455HisArg: 1.455 ± 0.048
1.023HisSer: 1.023 ± 0.043
0.599HisThr: 0.599 ± 0.029
1.325HisVal: 1.325 ± 0.044
0.304HisTrp: 0.304 ± 0.02
0.515HisTyr: 0.515 ± 0.031
0.0HisXaa: 0.0 ± 0.0
Ile
7.656IleAla: 7.656 ± 0.124
0.414IleCys: 0.414 ± 0.027
3.876IleAsp: 3.876 ± 0.087
3.628IleGlu: 3.628 ± 0.092
1.522IlePhe: 1.522 ± 0.051
4.977IleGly: 4.977 ± 0.099
0.846IleHis: 0.846 ± 0.036
1.922IleIle: 1.922 ± 0.055
1.236IleLys: 1.236 ± 0.045
4.031IleLeu: 4.031 ± 0.086
0.726IleMet: 0.726 ± 0.037
1.274IleAsn: 1.274 ± 0.052
2.286IlePro: 2.286 ± 0.058
1.129IleGln: 1.129 ± 0.039
3.204IleArg: 3.204 ± 0.076
2.429IleSer: 2.429 ± 0.061
2.189IleThr: 2.189 ± 0.064
4.373IleVal: 4.373 ± 0.085
0.517IleTrp: 0.517 ± 0.029
0.991IleTyr: 0.991 ± 0.038
0.0IleXaa: 0.0 ± 0.0
Lys
4.271LysAla: 4.271 ± 0.091
0.173LysCys: 0.173 ± 0.016
1.709LysAsp: 1.709 ± 0.06
1.374LysGlu: 1.374 ± 0.054
0.92LysPhe: 0.92 ± 0.041
2.529LysGly: 2.529 ± 0.067
0.585LysHis: 0.585 ± 0.028
1.592LysIle: 1.592 ± 0.051
1.172LysLys: 1.172 ± 0.051
3.719LysLeu: 3.719 ± 0.078
0.801LysMet: 0.801 ± 0.037
0.712LysAsn: 0.712 ± 0.038
2.142LysPro: 2.142 ± 0.067
1.129LysGln: 1.129 ± 0.048
2.621LysArg: 2.621 ± 0.071
1.842LysSer: 1.842 ± 0.056
1.714LysThr: 1.714 ± 0.057
2.585LysVal: 2.585 ± 0.075
0.392LysTrp: 0.392 ± 0.023
0.629LysTyr: 0.629 ± 0.03
0.0LysXaa: 0.0 ± 0.0
Leu
13.934LeuAla: 13.934 ± 0.197
0.728LeuCys: 0.728 ± 0.038
6.173LeuAsp: 6.173 ± 0.12
5.303LeuGlu: 5.303 ± 0.105
3.614LeuPhe: 3.614 ± 0.075
8.601LeuGly: 8.601 ± 0.122
1.727LeuHis: 1.727 ± 0.057
4.847LeuIle: 4.847 ± 0.104
3.475LeuLys: 3.475 ± 0.077
10.12LeuLeu: 10.12 ± 0.174
2.072LeuMet: 2.072 ± 0.06
2.562LeuAsn: 2.562 ± 0.063
5.389LeuPro: 5.389 ± 0.104
2.916LeuGln: 2.916 ± 0.068
6.854LeuArg: 6.854 ± 0.123
5.892LeuSer: 5.892 ± 0.095
5.216LeuThr: 5.216 ± 0.102
7.5LeuVal: 7.5 ± 0.124
1.205LeuTrp: 1.205 ± 0.05
1.869LeuTyr: 1.869 ± 0.053
0.0LeuXaa: 0.0 ± 0.0
Met
2.902MetAla: 2.902 ± 0.079
0.119MetCys: 0.119 ± 0.013
1.102MetAsp: 1.102 ± 0.044
0.982MetGlu: 0.982 ± 0.04
0.674MetPhe: 0.674 ± 0.035
1.574MetGly: 1.574 ± 0.058
0.418MetHis: 0.418 ± 0.023
1.315MetIle: 1.315 ± 0.05
0.955MetLys: 0.955 ± 0.037
2.489MetLeu: 2.489 ± 0.066
0.528MetMet: 0.528 ± 0.028
0.723MetAsn: 0.723 ± 0.03
1.352MetPro: 1.352 ± 0.045
0.752MetGln: 0.752 ± 0.035
1.809MetArg: 1.809 ± 0.049
1.418MetSer: 1.418 ± 0.045
1.541MetThr: 1.541 ± 0.045
1.513MetVal: 1.513 ± 0.05
0.233MetTrp: 0.233 ± 0.018
0.318MetTyr: 0.318 ± 0.02
0.0MetXaa: 0.0 ± 0.0
Asn
3.219AsnAla: 3.219 ± 0.082
0.242AsnCys: 0.242 ± 0.018
1.394AsnAsp: 1.394 ± 0.054
1.165AsnGlu: 1.165 ± 0.043
0.935AsnPhe: 0.935 ± 0.037
2.403AsnGly: 2.403 ± 0.081
0.425AsnHis: 0.425 ± 0.027
1.249AsnIle: 1.249 ± 0.045
0.646AsnLys: 0.646 ± 0.032
2.409AsnLeu: 2.409 ± 0.069
0.506AsnMet: 0.506 ± 0.029
0.557AsnAsn: 0.557 ± 0.032
1.82AsnPro: 1.82 ± 0.059
0.784AsnGln: 0.784 ± 0.035
1.897AsnArg: 1.897 ± 0.054
1.263AsnSer: 1.263 ± 0.05
1.057AsnThr: 1.057 ± 0.046
1.95AsnVal: 1.95 ± 0.064
0.397AsnTrp: 0.397 ± 0.028
0.635AsnTyr: 0.635 ± 0.032
0.0AsnXaa: 0.0 ± 0.0
Pro
6.888ProAla: 6.888 ± 0.127
0.32ProCys: 0.32 ± 0.026
3.564ProAsp: 3.564 ± 0.082
3.549ProGlu: 3.549 ± 0.074
1.894ProPhe: 1.894 ± 0.052
4.904ProGly: 4.904 ± 0.097
0.999ProHis: 0.999 ± 0.037
2.434ProIle: 2.434 ± 0.064
1.831ProLys: 1.831 ± 0.052
5.061ProLeu: 5.061 ± 0.09
1.158ProMet: 1.158 ± 0.047
1.364ProAsn: 1.364 ± 0.053
2.904ProPro: 2.904 ± 0.099
1.798ProGln: 1.798 ± 0.06
3.233ProArg: 3.233 ± 0.075
2.796ProSer: 2.796 ± 0.071
2.576ProThr: 2.576 ± 0.071
4.27ProVal: 4.27 ± 0.09
0.682ProTrp: 0.682 ± 0.032
1.112ProTyr: 1.112 ± 0.044
0.0ProXaa: 0.0 ± 0.0
Gln
4.243GlnAla: 4.243 ± 0.09
0.2GlnCys: 0.2 ± 0.018
1.453GlnAsp: 1.453 ± 0.042
1.346GlnGlu: 1.346 ± 0.047
1.065GlnPhe: 1.065 ± 0.043
2.409GlnGly: 2.409 ± 0.064
0.595GlnHis: 0.595 ± 0.031
1.528GlnIle: 1.528 ± 0.053
0.985GlnLys: 0.985 ± 0.043
3.833GlnLeu: 3.833 ± 0.082
0.873GlnMet: 0.873 ± 0.037
0.634GlnAsn: 0.634 ± 0.033
2.089GlnPro: 2.089 ± 0.063
1.527GlnGln: 1.527 ± 0.066
2.983GlnArg: 2.983 ± 0.078
1.909GlnSer: 1.909 ± 0.055
1.428GlnThr: 1.428 ± 0.05
2.599GlnVal: 2.599 ± 0.065
0.517GlnTrp: 0.517 ± 0.029
0.632GlnTyr: 0.632 ± 0.03
0.0GlnXaa: 0.0 ± 0.0
Arg
8.569ArgAla: 8.569 ± 0.136
0.498ArgCys: 0.498 ± 0.026
4.292ArgAsp: 4.292 ± 0.079
4.523ArgGlu: 4.523 ± 0.095
3.218ArgPhe: 3.218 ± 0.075
5.403ArgGly: 5.403 ± 0.106
1.538ArgHis: 1.538 ± 0.053
4.081ArgIle: 4.081 ± 0.081
2.393ArgLys: 2.393 ± 0.062
8.44ArgLeu: 8.44 ± 0.145
2.02ArgMet: 2.02 ± 0.061
1.897ArgAsn: 1.897 ± 0.053
3.859ArgPro: 3.859 ± 0.089
2.715ArgGln: 2.715 ± 0.069
6.128ArgArg: 6.128 ± 0.125
4.287ArgSer: 4.287 ± 0.094
3.592ArgThr: 3.592 ± 0.073
4.996ArgVal: 4.996 ± 0.084
1.21ArgTrp: 1.21 ± 0.043
1.709ArgTyr: 1.709 ± 0.054
0.0ArgXaa: 0.0 ± 0.0
Ser
6.914SerAla: 6.914 ± 0.109
0.389SerCys: 0.389 ± 0.026
3.191SerAsp: 3.191 ± 0.08
2.93SerGlu: 2.93 ± 0.054
2.158SerPhe: 2.158 ± 0.066
5.808SerGly: 5.808 ± 0.116
0.848SerHis: 0.848 ± 0.042
2.643SerIle: 2.643 ± 0.064
1.644SerLys: 1.644 ± 0.051
5.141SerLeu: 5.141 ± 0.092
1.187SerMet: 1.187 ± 0.048
1.457SerAsn: 1.457 ± 0.05
2.827SerPro: 2.827 ± 0.074
1.617SerGln: 1.617 ± 0.05
3.706SerArg: 3.706 ± 0.076
3.021SerSer: 3.021 ± 0.088
2.651SerThr: 2.651 ± 0.06
3.798SerVal: 3.798 ± 0.07
0.81SerTrp: 0.81 ± 0.037
1.172SerTyr: 1.172 ± 0.044
0.0SerXaa: 0.0 ± 0.0
Thr
6.068ThrAla: 6.068 ± 0.1
0.412ThrCys: 0.412 ± 0.028
2.691ThrAsp: 2.691 ± 0.062
2.356ThrGlu: 2.356 ± 0.053
1.822ThrPhe: 1.822 ± 0.06
4.961ThrGly: 4.961 ± 0.108
0.838ThrHis: 0.838 ± 0.038
2.76ThrIle: 2.76 ± 0.067
1.354ThrLys: 1.354 ± 0.052
5.219ThrLeu: 5.219 ± 0.097
1.094ThrMet: 1.094 ± 0.046
1.215ThrAsn: 1.215 ± 0.042
3.157ThrPro: 3.157 ± 0.075
1.443ThrGln: 1.443 ± 0.048
3.229ThrArg: 3.229 ± 0.07
2.531ThrSer: 2.531 ± 0.063
2.506ThrThr: 2.506 ± 0.079
4.195ThrVal: 4.195 ± 0.083
0.523ThrTrp: 0.523 ± 0.032
1.065ThrTyr: 1.065 ± 0.039
0.0ThrXaa: 0.0 ± 0.0
Val
10.015ValAla: 10.015 ± 0.134
0.507ValCys: 0.507 ± 0.031
4.688ValAsp: 4.688 ± 0.077
4.982ValGlu: 4.982 ± 0.089
2.176ValPhe: 2.176 ± 0.06
6.168ValGly: 6.168 ± 0.112
1.343ValHis: 1.343 ± 0.052
3.816ValIle: 3.816 ± 0.076
2.232ValLys: 2.232 ± 0.067
6.576ValLeu: 6.576 ± 0.105
1.469ValMet: 1.469 ± 0.046
1.903ValAsn: 1.903 ± 0.06
4.028ValPro: 4.028 ± 0.083
2.111ValGln: 2.111 ± 0.051
5.505ValArg: 5.505 ± 0.081
3.978ValSer: 3.978 ± 0.081
4.303ValThr: 4.303 ± 0.093
5.573ValVal: 5.573 ± 0.114
0.863ValTrp: 0.863 ± 0.038
1.283ValTyr: 1.283 ± 0.046
0.0ValXaa: 0.0 ± 0.0
Trp
1.369TrpAla: 1.369 ± 0.044
0.087TrpCys: 0.087 ± 0.013
0.664TrpAsp: 0.664 ± 0.028
0.521TrpGlu: 0.521 ± 0.031
0.487TrpPhe: 0.487 ± 0.027
0.965TrpGly: 0.965 ± 0.04
0.336TrpHis: 0.336 ± 0.024
0.681TrpIle: 0.681 ± 0.034
0.489TrpLys: 0.489 ± 0.028
1.747TrpLeu: 1.747 ± 0.063
0.354TrpMet: 0.354 ± 0.027
0.434TrpAsn: 0.434 ± 0.024
0.681TrpPro: 0.681 ± 0.035
0.607TrpGln: 0.607 ± 0.033
1.357TrpArg: 1.357 ± 0.055
0.874TrpSer: 0.874 ± 0.035
0.759TrpThr: 0.759 ± 0.037
0.845TrpVal: 0.845 ± 0.038
0.228TrpTrp: 0.228 ± 0.02
0.239TrpTyr: 0.239 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.481TyrAla: 2.481 ± 0.067
0.208TyrCys: 0.208 ± 0.017
1.377TyrAsp: 1.377 ± 0.05
1.147TyrGlu: 1.147 ± 0.04
0.826TyrPhe: 0.826 ± 0.036
1.987TyrGly: 1.987 ± 0.064
0.417TyrHis: 0.417 ± 0.027
0.812TyrIle: 0.812 ± 0.038
0.593TyrLys: 0.593 ± 0.03
2.114TyrLeu: 2.114 ± 0.064
0.378TyrMet: 0.378 ± 0.025
0.543TyrAsn: 0.543 ± 0.033
0.996TyrPro: 0.996 ± 0.041
0.678TyrGln: 0.678 ± 0.039
1.914TyrArg: 1.914 ± 0.061
1.116TyrSer: 1.116 ± 0.04
0.879TyrThr: 0.879 ± 0.038
1.566TyrVal: 1.566 ± 0.05
0.339TyrTrp: 0.339 ± 0.023
0.585TyrTyr: 0.585 ± 0.034
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 2087 proteins (640540 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