Amino acid dipepetide frequency for Fibrella aestuarina BUZ 2

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
8.7AlaAla: 8.7 ± 0.089
0.783AlaCys: 0.783 ± 0.019
6.081AlaAsp: 6.081 ± 0.059
4.756AlaGlu: 4.756 ± 0.064
3.851AlaPhe: 3.851 ± 0.047
7.25AlaGly: 7.25 ± 0.062
1.575AlaHis: 1.575 ± 0.03
4.932AlaIle: 4.932 ± 0.059
3.752AlaLys: 3.752 ± 0.053
9.334AlaLeu: 9.334 ± 0.09
2.045AlaMet: 2.045 ± 0.036
4.225AlaAsn: 4.225 ± 0.057
3.867AlaPro: 3.867 ± 0.052
4.564AlaGln: 4.564 ± 0.055
4.624AlaArg: 4.624 ± 0.054
5.34AlaSer: 5.34 ± 0.065
6.293AlaThr: 6.293 ± 0.085
6.21AlaVal: 6.21 ± 0.063
1.091AlaTrp: 1.091 ± 0.023
3.27AlaTyr: 3.27 ± 0.045
0.0AlaXaa: 0.0 ± 0.0
Cys
0.625CysAla: 0.625 ± 0.022
0.114CysCys: 0.114 ± 0.008
0.338CysAsp: 0.338 ± 0.012
0.341CysGlu: 0.341 ± 0.015
0.346CysPhe: 0.346 ± 0.013
0.567CysGly: 0.567 ± 0.019
0.2CysHis: 0.2 ± 0.01
0.377CysIle: 0.377 ± 0.014
0.249CysLys: 0.249 ± 0.012
0.894CysLeu: 0.894 ± 0.021
0.142CysMet: 0.142 ± 0.009
0.25CysAsn: 0.25 ± 0.011
0.369CysPro: 0.369 ± 0.016
0.352CysGln: 0.352 ± 0.014
0.472CysArg: 0.472 ± 0.015
0.468CysSer: 0.468 ± 0.021
0.469CysThr: 0.469 ± 0.02
0.5CysVal: 0.5 ± 0.018
0.125CysTrp: 0.125 ± 0.009
0.269CysTyr: 0.269 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
4.945AspAla: 4.945 ± 0.052
0.352AspCys: 0.352 ± 0.014
2.812AspAsp: 2.812 ± 0.047
3.393AspGlu: 3.393 ± 0.045
2.41AspPhe: 2.41 ± 0.035
4.223AspGly: 4.223 ± 0.054
0.931AspHis: 0.931 ± 0.022
2.683AspIle: 2.683 ± 0.041
2.565AspLys: 2.565 ± 0.041
5.29AspLeu: 5.29 ± 0.058
1.038AspMet: 1.038 ± 0.024
2.198AspAsn: 2.198 ± 0.033
2.692AspPro: 2.692 ± 0.041
2.335AspGln: 2.335 ± 0.033
3.312AspArg: 3.312 ± 0.049
2.726AspSer: 2.726 ± 0.04
2.897AspThr: 2.897 ± 0.036
3.956AspVal: 3.956 ± 0.043
0.981AspTrp: 0.981 ± 0.024
2.35AspTyr: 2.35 ± 0.034
0.0AspXaa: 0.0 ± 0.0
Glu
5.145GluAla: 5.145 ± 0.056
0.264GluCys: 0.264 ± 0.013
1.769GluAsp: 1.769 ± 0.038
2.251GluGlu: 2.251 ± 0.047
1.749GluPhe: 1.749 ± 0.035
3.11GluGly: 3.11 ± 0.043
0.919GluHis: 0.919 ± 0.024
2.314GluIle: 2.314 ± 0.04
2.575GluLys: 2.575 ± 0.05
5.301GluLeu: 5.301 ± 0.066
1.045GluMet: 1.045 ± 0.025
1.87GluAsn: 1.87 ± 0.033
2.079GluPro: 2.079 ± 0.034
2.869GluGln: 2.869 ± 0.043
3.289GluArg: 3.289 ± 0.056
2.386GluSer: 2.386 ± 0.034
3.043GluThr: 3.043 ± 0.039
3.322GluVal: 3.322 ± 0.049
0.66GluTrp: 0.66 ± 0.02
1.521GluTyr: 1.521 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
3.54PheAla: 3.54 ± 0.041
0.417PheCys: 0.417 ± 0.013
2.718PheAsp: 2.718 ± 0.039
1.942PheGlu: 1.942 ± 0.033
1.881PhePhe: 1.881 ± 0.038
3.413PheGly: 3.413 ± 0.052
0.65PheHis: 0.65 ± 0.018
2.118PheIle: 2.118 ± 0.038
1.534PheLys: 1.534 ± 0.026
3.823PheLeu: 3.823 ± 0.049
0.929PheMet: 0.929 ± 0.023
1.905PheAsn: 1.905 ± 0.036
1.679PhePro: 1.679 ± 0.027
1.513PheGln: 1.513 ± 0.028
2.555PheArg: 2.555 ± 0.046
2.923PheSer: 2.923 ± 0.042
2.901PheThr: 2.901 ± 0.04
3.088PheVal: 3.088 ± 0.039
0.641PheTrp: 0.641 ± 0.018
1.648PheTyr: 1.648 ± 0.028
0.0PheXaa: 0.0 ± 0.0
Gly
5.751GlyAla: 5.751 ± 0.07
0.713GlyCys: 0.713 ± 0.026
3.608GlyAsp: 3.608 ± 0.052
3.248GlyGlu: 3.248 ± 0.041
3.313GlyPhe: 3.313 ± 0.042
5.708GlyGly: 5.708 ± 0.069
1.355GlyHis: 1.355 ± 0.029
4.205GlyIle: 4.205 ± 0.055
3.761GlyLys: 3.761 ± 0.052
7.67GlyLeu: 7.67 ± 0.074
1.61GlyMet: 1.61 ± 0.031
3.327GlyAsn: 3.327 ± 0.055
2.511GlyPro: 2.511 ± 0.041
3.778GlyGln: 3.778 ± 0.047
4.248GlyArg: 4.248 ± 0.047
4.624GlySer: 4.624 ± 0.066
5.327GlyThr: 5.327 ± 0.062
5.174GlyVal: 5.174 ± 0.058
1.247GlyTrp: 1.247 ± 0.026
3.184GlyTyr: 3.184 ± 0.038
0.0GlyXaa: 0.0 ± 0.0
His
1.306HisAla: 1.306 ± 0.028
0.196HisCys: 0.196 ± 0.01
0.975HisAsp: 0.975 ± 0.022
0.993HisGlu: 0.993 ± 0.026
0.903HisPhe: 0.903 ± 0.023
1.155HisGly: 1.155 ± 0.026
0.491HisHis: 0.491 ± 0.016
0.971HisIle: 0.971 ± 0.025
0.647HisLys: 0.647 ± 0.017
1.906HisLeu: 1.906 ± 0.033
0.337HisMet: 0.337 ± 0.013
0.711HisAsn: 0.711 ± 0.021
1.166HisPro: 1.166 ± 0.028
0.84HisGln: 0.84 ± 0.023
1.159HisArg: 1.159 ± 0.026
0.91HisSer: 0.91 ± 0.023
1.153HisThr: 1.153 ± 0.02
1.136HisVal: 1.136 ± 0.027
0.321HisTrp: 0.321 ± 0.013
0.843HisTyr: 0.843 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
4.672IleAla: 4.672 ± 0.052
0.483IleCys: 0.483 ± 0.018
3.76IleAsp: 3.76 ± 0.046
2.877IleGlu: 2.877 ± 0.045
1.63IlePhe: 1.63 ± 0.032
4.347IleGly: 4.347 ± 0.054
0.943IleHis: 0.943 ± 0.02
2.398IleIle: 2.398 ± 0.046
2.099IleLys: 2.099 ± 0.04
4.0IleLeu: 4.0 ± 0.048
0.856IleMet: 0.856 ± 0.019
2.626IleAsn: 2.626 ± 0.045
2.483IlePro: 2.483 ± 0.038
2.047IleGln: 2.047 ± 0.03
3.56IleArg: 3.56 ± 0.047
3.081IleSer: 3.081 ± 0.047
3.408IleThr: 3.408 ± 0.041
3.369IleVal: 3.369 ± 0.046
0.646IleTrp: 0.646 ± 0.019
1.677IleTyr: 1.677 ± 0.029
0.0IleXaa: 0.0 ± 0.0
Lys
4.435LysAla: 4.435 ± 0.062
0.173LysCys: 0.173 ± 0.009
2.019LysAsp: 2.019 ± 0.038
2.169LysGlu: 2.169 ± 0.044
1.237LysPhe: 1.237 ± 0.026
3.071LysGly: 3.071 ± 0.045
0.762LysHis: 0.762 ± 0.021
2.04LysIle: 2.04 ± 0.037
2.302LysLys: 2.302 ± 0.041
4.252LysLeu: 4.252 ± 0.05
0.978LysMet: 0.978 ± 0.021
1.869LysAsn: 1.869 ± 0.031
2.771LysPro: 2.771 ± 0.046
2.086LysGln: 2.086 ± 0.04
2.607LysArg: 2.607 ± 0.038
2.159LysSer: 2.159 ± 0.037
3.031LysThr: 3.031 ± 0.042
2.641LysVal: 2.641 ± 0.042
0.49LysTrp: 0.49 ± 0.018
1.335LysTyr: 1.335 ± 0.031
0.0LysXaa: 0.0 ± 0.0
Leu
10.094LeuAla: 10.094 ± 0.091
0.841LeuCys: 0.841 ± 0.021
5.097LeuAsp: 5.097 ± 0.057
3.914LeuGlu: 3.914 ± 0.06
4.571LeuPhe: 4.571 ± 0.057
6.94LeuGly: 6.94 ± 0.073
1.844LeuHis: 1.844 ± 0.032
5.454LeuIle: 5.454 ± 0.064
4.361LeuLys: 4.361 ± 0.051
11.831LeuLeu: 11.831 ± 0.116
2.193LeuMet: 2.193 ± 0.031
4.65LeuAsn: 4.65 ± 0.051
5.591LeuPro: 5.591 ± 0.058
3.803LeuGln: 3.803 ± 0.046
5.965LeuArg: 5.965 ± 0.062
6.831LeuSer: 6.831 ± 0.064
8.371LeuThr: 8.371 ± 0.079
6.663LeuVal: 6.663 ± 0.074
1.171LeuTrp: 1.171 ± 0.028
3.387LeuTyr: 3.387 ± 0.046
0.0LeuXaa: 0.0 ± 0.0
Met
2.266MetAla: 2.266 ± 0.036
0.108MetCys: 0.108 ± 0.007
0.934MetAsp: 0.934 ± 0.022
0.855MetGlu: 0.855 ± 0.023
0.533MetPhe: 0.533 ± 0.015
1.561MetGly: 1.561 ± 0.032
0.449MetHis: 0.449 ± 0.013
0.921MetIle: 0.921 ± 0.022
1.225MetLys: 1.225 ± 0.026
2.137MetLeu: 2.137 ± 0.034
0.493MetMet: 0.493 ± 0.019
1.074MetAsn: 1.074 ± 0.023
1.19MetPro: 1.19 ± 0.023
0.998MetGln: 0.998 ± 0.024
1.238MetArg: 1.238 ± 0.024
1.128MetSer: 1.128 ± 0.024
1.458MetThr: 1.458 ± 0.026
1.285MetVal: 1.285 ± 0.027
0.182MetTrp: 0.182 ± 0.009
0.507MetTyr: 0.507 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
3.929AsnAla: 3.929 ± 0.048
0.296AsnCys: 0.296 ± 0.015
2.289AsnAsp: 2.289 ± 0.042
2.165AsnGlu: 2.165 ± 0.033
1.623AsnPhe: 1.623 ± 0.033
3.749AsnGly: 3.749 ± 0.052
0.771AsnHis: 0.771 ± 0.019
1.969AsnIle: 1.969 ± 0.035
1.637AsnLys: 1.637 ± 0.03
4.231AsnLeu: 4.231 ± 0.052
0.816AsnMet: 0.816 ± 0.022
2.048AsnAsn: 2.048 ± 0.045
2.785AsnPro: 2.785 ± 0.043
2.188AsnGln: 2.188 ± 0.039
2.957AsnArg: 2.957 ± 0.041
2.361AsnSer: 2.361 ± 0.045
2.797AsnThr: 2.797 ± 0.045
3.269AsnVal: 3.269 ± 0.044
0.716AsnTrp: 0.716 ± 0.021
1.734AsnTyr: 1.734 ± 0.035
0.0AsnXaa: 0.0 ± 0.0
Pro
5.495ProAla: 5.495 ± 0.069
0.24ProCys: 0.24 ± 0.01
3.651ProAsp: 3.651 ± 0.046
2.645ProGlu: 2.645 ± 0.041
2.113ProPhe: 2.113 ± 0.032
3.631ProGly: 3.631 ± 0.049
0.846ProHis: 0.846 ± 0.021
2.643ProIle: 2.643 ± 0.038
1.863ProLys: 1.863 ± 0.036
4.47ProLeu: 4.47 ± 0.049
1.013ProMet: 1.013 ± 0.021
2.377ProAsn: 2.377 ± 0.034
1.857ProPro: 1.857 ± 0.038
1.862ProGln: 1.862 ± 0.03
2.05ProArg: 2.05 ± 0.036
2.723ProSer: 2.723 ± 0.04
3.933ProThr: 3.933 ± 0.058
3.949ProVal: 3.949 ± 0.047
0.493ProTrp: 0.493 ± 0.017
1.738ProTyr: 1.738 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
4.457GlnAla: 4.457 ± 0.056
0.236GlnCys: 0.236 ± 0.011
1.5GlnAsp: 1.5 ± 0.031
1.843GlnGlu: 1.843 ± 0.034
1.964GlnPhe: 1.964 ± 0.031
2.598GlnGly: 2.598 ± 0.041
1.013GlnHis: 1.013 ± 0.025
2.249GlnIle: 2.249 ± 0.036
2.012GlnLys: 2.012 ± 0.033
5.42GlnLeu: 5.42 ± 0.061
0.919GlnMet: 0.919 ± 0.022
1.816GlnAsn: 1.816 ± 0.037
2.942GlnPro: 2.942 ± 0.044
3.05GlnGln: 3.05 ± 0.054
2.958GlnArg: 2.958 ± 0.044
2.528GlnSer: 2.528 ± 0.043
3.457GlnThr: 3.457 ± 0.049
3.032GlnVal: 3.032 ± 0.04
0.571GlnTrp: 0.571 ± 0.017
1.669GlnTyr: 1.669 ± 0.025
0.0GlnXaa: 0.0 ± 0.0
Arg
4.641ArgAla: 4.641 ± 0.053
0.368ArgCys: 0.368 ± 0.015
2.904ArgAsp: 2.904 ± 0.047
2.824ArgGlu: 2.824 ± 0.047
2.911ArgPhe: 2.911 ± 0.037
3.292ArgGly: 3.292 ± 0.045
1.174ArgHis: 1.174 ± 0.025
3.283ArgIle: 3.283 ± 0.048
2.417ArgLys: 2.417 ± 0.034
6.672ArgLeu: 6.672 ± 0.073
1.366ArgMet: 1.366 ± 0.028
2.5ArgAsn: 2.5 ± 0.039
2.925ArgPro: 2.925 ± 0.043
3.409ArgGln: 3.409 ± 0.048
3.531ArgArg: 3.531 ± 0.049
3.119ArgSer: 3.119 ± 0.045
3.571ArgThr: 3.571 ± 0.044
4.023ArgVal: 4.023 ± 0.048
0.991ArgTrp: 0.991 ± 0.025
2.591ArgTyr: 2.591 ± 0.042
0.0ArgXaa: 0.0 ± 0.0
Ser
5.259SerAla: 5.259 ± 0.06
0.438SerCys: 0.438 ± 0.014
2.83SerAsp: 2.83 ± 0.038
2.467SerGlu: 2.467 ± 0.038
2.783SerPhe: 2.783 ± 0.039
4.964SerGly: 4.964 ± 0.064
0.945SerHis: 0.945 ± 0.025
3.096SerIle: 3.096 ± 0.044
2.073SerLys: 2.073 ± 0.036
6.486SerLeu: 6.486 ± 0.057
1.221SerMet: 1.221 ± 0.027
2.285SerAsn: 2.285 ± 0.042
2.962SerPro: 2.962 ± 0.04
2.374SerGln: 2.374 ± 0.037
3.181SerArg: 3.181 ± 0.043
3.549SerSer: 3.549 ± 0.062
3.869SerThr: 3.869 ± 0.067
4.406SerVal: 4.406 ± 0.06
0.763SerTrp: 0.763 ± 0.02
2.224SerTyr: 2.224 ± 0.04
0.0SerXaa: 0.0 ± 0.0
Thr
6.27ThrAla: 6.27 ± 0.082
0.411ThrCys: 0.411 ± 0.019
4.193ThrAsp: 4.193 ± 0.042
2.972ThrGlu: 2.972 ± 0.035
2.957ThrPhe: 2.957 ± 0.04
5.535ThrGly: 5.535 ± 0.07
1.151ThrHis: 1.151 ± 0.024
3.744ThrIle: 3.744 ± 0.048
2.445ThrLys: 2.445 ± 0.036
7.424ThrLeu: 7.424 ± 0.081
1.149ThrMet: 1.149 ± 0.025
3.178ThrAsn: 3.178 ± 0.048
3.901ThrPro: 3.901 ± 0.051
2.706ThrGln: 2.706 ± 0.038
3.114ThrArg: 3.114 ± 0.041
3.711ThrSer: 3.711 ± 0.065
4.791ThrThr: 4.791 ± 0.079
5.01ThrVal: 5.01 ± 0.077
0.799ThrTrp: 0.799 ± 0.018
3.126ThrTyr: 3.126 ± 0.051
0.0ThrXaa: 0.0 ± 0.0
Val
6.655ValAla: 6.655 ± 0.066
0.604ValCys: 0.604 ± 0.021
3.811ValAsp: 3.811 ± 0.047
3.354ValGlu: 3.354 ± 0.04
2.741ValPhe: 2.741 ± 0.042
5.511ValGly: 5.511 ± 0.063
1.086ValHis: 1.086 ± 0.026
3.427ValIle: 3.427 ± 0.046
2.843ValLys: 2.843 ± 0.04
6.832ValLeu: 6.832 ± 0.074
1.452ValMet: 1.452 ± 0.029
3.063ValAsn: 3.063 ± 0.041
3.595ValPro: 3.595 ± 0.049
2.779ValGln: 2.779 ± 0.04
4.317ValArg: 4.317 ± 0.044
4.655ValSer: 4.655 ± 0.055
4.543ValThr: 4.543 ± 0.071
5.501ValVal: 5.501 ± 0.069
0.912ValTrp: 0.912 ± 0.019
2.408ValTyr: 2.408 ± 0.038
0.0ValXaa: 0.0 ± 0.0
Trp
1.157TrpAla: 1.157 ± 0.028
0.104TrpCys: 0.104 ± 0.007
0.599TrpAsp: 0.599 ± 0.019
0.584TrpGlu: 0.584 ± 0.019
0.617TrpPhe: 0.617 ± 0.022
0.94TrpGly: 0.94 ± 0.024
0.323TrpHis: 0.323 ± 0.013
0.553TrpIle: 0.553 ± 0.018
0.53TrpLys: 0.53 ± 0.014
1.846TrpLeu: 1.846 ± 0.038
0.303TrpMet: 0.303 ± 0.014
0.583TrpAsn: 0.583 ± 0.018
0.524TrpPro: 0.524 ± 0.017
0.865TrpGln: 0.865 ± 0.023
0.858TrpArg: 0.858 ± 0.023
0.782TrpSer: 0.782 ± 0.027
0.816TrpThr: 0.816 ± 0.024
0.92TrpVal: 0.92 ± 0.023
0.251TrpTrp: 0.251 ± 0.012
0.464TrpTyr: 0.464 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.201TyrAla: 3.201 ± 0.039
0.328TyrCys: 0.328 ± 0.012
2.204TyrAsp: 2.204 ± 0.039
1.887TyrGlu: 1.887 ± 0.036
1.684TyrPhe: 1.684 ± 0.028
2.798TyrGly: 2.798 ± 0.034
0.69TyrHis: 0.69 ± 0.02
1.588TyrIle: 1.588 ± 0.027
1.535TyrLys: 1.535 ± 0.03
3.754TyrLeu: 3.754 ± 0.041
0.633TyrMet: 0.633 ± 0.018
1.773TyrAsn: 1.773 ± 0.033
1.703TyrPro: 1.703 ± 0.032
1.815TyrGln: 1.815 ± 0.033
2.52TyrArg: 2.52 ± 0.038
2.169TyrSer: 2.169 ± 0.044
2.461TyrThr: 2.461 ± 0.043
2.634TyrVal: 2.634 ± 0.038
0.57TyrTrp: 0.57 ± 0.015
1.54TyrTyr: 1.54 ± 0.029
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 5627 proteins (2040039 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