Amino acid dipepetide frequency for Blumeria graminis f. sp. hordei (Barley powdery mildew) (Oidium monilioides f. sp. hordei)

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
5.749AlaAla: 5.749 ± 0.07
1.011AlaCys: 1.011 ± 0.02
3.184AlaAsp: 3.184 ± 0.043
4.272AlaGlu: 4.272 ± 0.048
2.53AlaPhe: 2.53 ± 0.037
3.992AlaGly: 3.992 ± 0.082
1.576AlaHis: 1.576 ± 0.025
4.202AlaIle: 4.202 ± 0.042
3.997AlaLys: 3.997 ± 0.052
6.387AlaLeu: 6.387 ± 0.058
1.511AlaMet: 1.511 ± 0.026
2.77AlaAsn: 2.77 ± 0.034
3.444AlaPro: 3.444 ± 0.053
2.887AlaGln: 2.887 ± 0.041
3.978AlaArg: 3.978 ± 0.049
6.098AlaSer: 6.098 ± 0.063
4.295AlaThr: 4.295 ± 0.043
3.824AlaVal: 3.824 ± 0.044
0.845AlaTrp: 0.845 ± 0.02
1.866AlaTyr: 1.866 ± 0.029
0.0AlaXaa: 0.0 ± 0.0
Cys
0.914CysAla: 0.914 ± 0.02
0.221CysCys: 0.221 ± 0.01
0.752CysAsp: 0.752 ± 0.019
0.8CysGlu: 0.8 ± 0.018
0.565CysPhe: 0.565 ± 0.018
0.918CysGly: 0.918 ± 0.024
0.387CysHis: 0.387 ± 0.014
0.849CysIle: 0.849 ± 0.019
0.702CysLys: 0.702 ± 0.016
1.384CysLeu: 1.384 ± 0.027
0.288CysMet: 0.288 ± 0.01
0.594CysAsn: 0.594 ± 0.018
0.668CysPro: 0.668 ± 0.018
0.583CysGln: 0.583 ± 0.017
0.787CysArg: 0.787 ± 0.018
1.255CysSer: 1.255 ± 0.021
0.764CysThr: 0.764 ± 0.017
0.727CysVal: 0.727 ± 0.017
0.17CysTrp: 0.17 ± 0.008
0.417CysTyr: 0.417 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
3.588AspAla: 3.588 ± 0.05
0.729AspCys: 0.729 ± 0.018
3.59AspAsp: 3.59 ± 0.056
4.48AspGlu: 4.48 ± 0.059
2.205AspPhe: 2.205 ± 0.034
3.3AspGly: 3.3 ± 0.048
1.14AspHis: 1.14 ± 0.022
3.52AspIle: 3.52 ± 0.038
2.746AspLys: 2.746 ± 0.033
5.208AspLeu: 5.208 ± 0.046
1.172AspMet: 1.172 ± 0.02
2.345AspAsn: 2.345 ± 0.029
2.675AspPro: 2.675 ± 0.035
2.033AspGln: 2.033 ± 0.03
2.692AspArg: 2.692 ± 0.041
4.559AspSer: 4.559 ± 0.054
2.783AspThr: 2.783 ± 0.035
3.179AspVal: 3.179 ± 0.043
0.687AspTrp: 0.687 ± 0.016
1.562AspTyr: 1.562 ± 0.025
0.0AspXaa: 0.0 ± 0.0
Glu
4.609GluAla: 4.609 ± 0.056
0.744GluCys: 0.744 ± 0.023
4.005GluAsp: 4.005 ± 0.049
5.283GluGlu: 5.283 ± 0.09
2.259GluPhe: 2.259 ± 0.029
3.109GluGly: 3.109 ± 0.036
1.213GluHis: 1.213 ± 0.023
4.454GluIle: 4.454 ± 0.052
4.796GluLys: 4.796 ± 0.058
5.601GluLeu: 5.601 ± 0.057
1.476GluMet: 1.476 ± 0.029
3.721GluAsn: 3.721 ± 0.046
2.537GluPro: 2.537 ± 0.04
2.334GluGln: 2.334 ± 0.035
3.714GluArg: 3.714 ± 0.043
5.2GluSer: 5.2 ± 0.061
3.685GluThr: 3.685 ± 0.046
3.605GluVal: 3.605 ± 0.049
0.79GluTrp: 0.79 ± 0.017
1.758GluTyr: 1.758 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
2.469PheAla: 2.469 ± 0.036
0.606PheCys: 0.606 ± 0.017
2.187PheAsp: 2.187 ± 0.032
2.427PheGlu: 2.427 ± 0.034
1.578PhePhe: 1.578 ± 0.028
2.474PheGly: 2.474 ± 0.041
0.946PheHis: 0.946 ± 0.018
2.166PheIle: 2.166 ± 0.035
1.925PheLys: 1.925 ± 0.029
3.527PheLeu: 3.527 ± 0.047
0.848PheMet: 0.848 ± 0.018
1.688PheAsn: 1.688 ± 0.027
1.964PhePro: 1.964 ± 0.028
1.555PheGln: 1.555 ± 0.027
1.987PheArg: 1.987 ± 0.033
3.431PheSer: 3.431 ± 0.038
2.22PheThr: 2.22 ± 0.03
2.137PheVal: 2.137 ± 0.032
0.558PheTrp: 0.558 ± 0.015
1.188PheTyr: 1.188 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
3.574GlyAla: 3.574 ± 0.067
0.791GlyCys: 0.791 ± 0.02
2.803GlyAsp: 2.803 ± 0.036
3.21GlyGlu: 3.21 ± 0.041
2.367GlyPhe: 2.367 ± 0.034
3.835GlyGly: 3.835 ± 0.065
1.387GlyHis: 1.387 ± 0.026
3.65GlyIle: 3.65 ± 0.039
3.592GlyLys: 3.592 ± 0.051
5.247GlyLeu: 5.247 ± 0.06
1.351GlyMet: 1.351 ± 0.025
2.717GlyAsn: 2.717 ± 0.037
2.51GlyPro: 2.51 ± 0.04
2.091GlyGln: 2.091 ± 0.035
3.377GlyArg: 3.377 ± 0.04
5.067GlySer: 5.067 ± 0.053
3.422GlyThr: 3.422 ± 0.039
3.279GlyVal: 3.279 ± 0.036
0.878GlyTrp: 0.878 ± 0.024
1.79GlyTyr: 1.79 ± 0.03
0.0GlyXaa: 0.0 ± 0.0
His
1.459HisAla: 1.459 ± 0.026
0.341HisCys: 0.341 ± 0.012
1.288HisAsp: 1.288 ± 0.023
1.498HisGlu: 1.498 ± 0.026
0.914HisPhe: 0.914 ± 0.019
1.499HisGly: 1.499 ± 0.03
0.749HisHis: 0.749 ± 0.025
1.447HisIle: 1.447 ± 0.023
1.126HisLys: 1.126 ± 0.022
2.283HisLeu: 2.283 ± 0.032
0.46HisMet: 0.46 ± 0.015
1.064HisAsn: 1.064 ± 0.022
1.386HisPro: 1.386 ± 0.025
1.158HisGln: 1.158 ± 0.024
1.446HisArg: 1.446 ± 0.029
2.02HisSer: 2.02 ± 0.034
1.234HisThr: 1.234 ± 0.025
1.288HisVal: 1.288 ± 0.024
0.28HisTrp: 0.28 ± 0.01
0.669HisTyr: 0.669 ± 0.015
0.0HisXaa: 0.0 ± 0.0
Ile
4.013IleAla: 4.013 ± 0.044
0.962IleCys: 0.962 ± 0.022
3.638IleAsp: 3.638 ± 0.044
3.931IleGlu: 3.931 ± 0.044
2.617IlePhe: 2.617 ± 0.041
3.221IleGly: 3.221 ± 0.04
1.408IleHis: 1.408 ± 0.024
3.736IleIle: 3.736 ± 0.044
3.534IleLys: 3.534 ± 0.042
5.807IleLeu: 5.807 ± 0.054
1.26IleMet: 1.26 ± 0.023
2.795IleAsn: 2.795 ± 0.031
3.361IlePro: 3.361 ± 0.036
2.431IleGln: 2.431 ± 0.036
3.292IleArg: 3.292 ± 0.038
6.133IleSer: 6.133 ± 0.06
3.442IleThr: 3.442 ± 0.042
3.267IleVal: 3.267 ± 0.042
0.775IleTrp: 0.775 ± 0.021
1.81IleTyr: 1.81 ± 0.031
0.0IleXaa: 0.0 ± 0.0
Lys
4.055LysAla: 4.055 ± 0.049
0.781LysCys: 0.781 ± 0.018
3.209LysAsp: 3.209 ± 0.063
3.949LysGlu: 3.949 ± 0.058
2.302LysPhe: 2.302 ± 0.034
2.886LysGly: 2.886 ± 0.042
1.176LysHis: 1.176 ± 0.022
4.085LysIle: 4.085 ± 0.051
4.551LysLys: 4.551 ± 0.064
5.262LysLeu: 5.262 ± 0.048
1.28LysMet: 1.28 ± 0.022
3.137LysAsn: 3.137 ± 0.042
2.852LysPro: 2.852 ± 0.04
2.114LysGln: 2.114 ± 0.031
3.827LysArg: 3.827 ± 0.044
5.288LysSer: 5.288 ± 0.05
3.415LysThr: 3.415 ± 0.05
3.233LysVal: 3.233 ± 0.04
0.699LysTrp: 0.699 ± 0.018
1.826LysTyr: 1.826 ± 0.027
0.0LysXaa: 0.0 ± 0.0
Leu
6.797LeuAla: 6.797 ± 0.056
1.27LeuCys: 1.27 ± 0.027
5.095LeuAsp: 5.095 ± 0.054
6.033LeuGlu: 6.033 ± 0.059
3.297LeuPhe: 3.297 ± 0.044
5.158LeuGly: 5.158 ± 0.056
2.337LeuHis: 2.337 ± 0.031
4.932LeuIle: 4.932 ± 0.059
5.221LeuLys: 5.221 ± 0.059
8.119LeuLeu: 8.119 ± 0.083
1.842LeuMet: 1.842 ± 0.027
4.04LeuAsn: 4.04 ± 0.038
5.069LeuPro: 5.069 ± 0.052
4.127LeuGln: 4.127 ± 0.044
5.611LeuArg: 5.611 ± 0.055
8.312LeuSer: 8.312 ± 0.07
5.002LeuThr: 5.002 ± 0.05
5.022LeuVal: 5.022 ± 0.051
1.063LeuTrp: 1.063 ± 0.023
2.399LeuTyr: 2.399 ± 0.03
0.0LeuXaa: 0.0 ± 0.0
Met
1.856MetAla: 1.856 ± 0.03
0.257MetCys: 0.257 ± 0.011
1.149MetAsp: 1.149 ± 0.022
1.392MetGlu: 1.392 ± 0.026
0.665MetPhe: 0.665 ± 0.017
1.301MetGly: 1.301 ± 0.027
0.412MetHis: 0.412 ± 0.015
1.22MetIle: 1.22 ± 0.02
1.346MetLys: 1.346 ± 0.027
1.697MetLeu: 1.697 ± 0.026
0.571MetMet: 0.571 ± 0.02
1.037MetAsn: 1.037 ± 0.022
1.097MetPro: 1.097 ± 0.022
0.834MetGln: 0.834 ± 0.02
1.247MetArg: 1.247 ± 0.024
2.043MetSer: 2.043 ± 0.029
1.347MetThr: 1.347 ± 0.023
1.134MetVal: 1.134 ± 0.022
0.212MetTrp: 0.212 ± 0.011
0.515MetTyr: 0.515 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
2.783AsnAla: 2.783 ± 0.033
0.673AsnCys: 0.673 ± 0.02
2.458AsnAsp: 2.458 ± 0.03
2.955AsnGlu: 2.955 ± 0.039
2.071AsnPhe: 2.071 ± 0.029
2.762AsnGly: 2.762 ± 0.033
1.158AsnHis: 1.158 ± 0.024
3.187AsnIle: 3.187 ± 0.037
2.477AsnLys: 2.477 ± 0.034
4.631AsnLeu: 4.631 ± 0.047
0.994AsnMet: 0.994 ± 0.017
2.445AsnAsn: 2.445 ± 0.036
2.72AsnPro: 2.72 ± 0.038
1.985AsnGln: 1.985 ± 0.028
2.408AsnArg: 2.408 ± 0.033
4.664AsnSer: 4.664 ± 0.05
2.776AsnThr: 2.776 ± 0.037
2.57AsnVal: 2.57 ± 0.037
0.548AsnTrp: 0.548 ± 0.018
1.496AsnTyr: 1.496 ± 0.027
0.0AsnXaa: 0.0 ± 0.0
Pro
3.46ProAla: 3.46 ± 0.047
0.61ProCys: 0.61 ± 0.016
2.652ProAsp: 2.652 ± 0.036
3.442ProGlu: 3.442 ± 0.047
1.804ProPhe: 1.804 ± 0.03
2.826ProGly: 2.826 ± 0.04
1.272ProHis: 1.272 ± 0.026
3.041ProIle: 3.041 ± 0.038
3.042ProLys: 3.042 ± 0.038
4.555ProLeu: 4.555 ± 0.047
0.967ProMet: 0.967 ± 0.02
2.549ProAsn: 2.549 ± 0.034
3.794ProPro: 3.794 ± 0.081
2.279ProGln: 2.279 ± 0.038
2.806ProArg: 2.806 ± 0.039
5.575ProSer: 5.575 ± 0.068
3.659ProThr: 3.659 ± 0.047
2.877ProVal: 2.877 ± 0.038
0.537ProTrp: 0.537 ± 0.014
1.433ProTyr: 1.433 ± 0.024
0.0ProXaa: 0.0 ± 0.0
Gln
2.966GlnAla: 2.966 ± 0.04
0.484GlnCys: 0.484 ± 0.013
2.014GlnAsp: 2.014 ± 0.034
2.504GlnGlu: 2.504 ± 0.036
1.351GlnPhe: 1.351 ± 0.025
2.06GlnGly: 2.06 ± 0.031
0.989GlnHis: 0.989 ± 0.022
2.677GlnIle: 2.677 ± 0.036
2.727GlnLys: 2.727 ± 0.036
3.566GlnLeu: 3.566 ± 0.042
0.858GlnMet: 0.858 ± 0.024
2.26GlnAsn: 2.26 ± 0.032
2.221GlnPro: 2.221 ± 0.039
2.193GlnGln: 2.193 ± 0.074
2.504GlnArg: 2.504 ± 0.035
3.621GlnSer: 3.621 ± 0.048
2.499GlnThr: 2.499 ± 0.038
2.159GlnVal: 2.159 ± 0.026
0.44GlnTrp: 0.44 ± 0.014
1.134GlnTyr: 1.134 ± 0.024
0.0GlnXaa: 0.0 ± 0.0
Arg
3.851ArgAla: 3.851 ± 0.04
0.79ArgCys: 0.79 ± 0.02
3.14ArgAsp: 3.14 ± 0.036
3.826ArgGlu: 3.826 ± 0.055
2.017ArgPhe: 2.017 ± 0.032
3.222ArgGly: 3.222 ± 0.048
1.433ArgHis: 1.433 ± 0.027
3.436ArgIle: 3.436 ± 0.041
4.105ArgLys: 4.105 ± 0.046
5.272ArgLeu: 5.272 ± 0.051
1.255ArgMet: 1.255 ± 0.025
2.917ArgAsn: 2.917 ± 0.038
2.869ArgPro: 2.869 ± 0.039
2.543ArgGln: 2.543 ± 0.034
4.4ArgArg: 4.4 ± 0.063
4.952ArgSer: 4.952 ± 0.058
2.999ArgThr: 2.999 ± 0.038
2.872ArgVal: 2.872 ± 0.034
0.73ArgTrp: 0.73 ± 0.018
1.587ArgTyr: 1.587 ± 0.023
0.0ArgXaa: 0.0 ± 0.0
Ser
5.684SerAla: 5.684 ± 0.057
1.223SerCys: 1.223 ± 0.022
4.655SerAsp: 4.655 ± 0.044
5.239SerGlu: 5.239 ± 0.052
3.364SerPhe: 3.364 ± 0.041
5.193SerGly: 5.193 ± 0.056
2.402SerHis: 2.402 ± 0.037
5.554SerIle: 5.554 ± 0.054
5.313SerLys: 5.313 ± 0.058
8.277SerLeu: 8.277 ± 0.068
1.845SerMet: 1.845 ± 0.03
4.591SerAsn: 4.591 ± 0.056
5.354SerPro: 5.354 ± 0.076
3.903SerGln: 3.903 ± 0.047
5.515SerArg: 5.515 ± 0.056
10.259SerSer: 10.259 ± 0.119
6.074SerThr: 6.074 ± 0.058
4.485SerVal: 4.485 ± 0.05
1.072SerTrp: 1.072 ± 0.024
2.449SerTyr: 2.449 ± 0.033
0.0SerXaa: 0.0 ± 0.0
Thr
4.059ThrAla: 4.059 ± 0.047
0.822ThrCys: 0.822 ± 0.019
2.775ThrAsp: 2.775 ± 0.038
3.405ThrGlu: 3.405 ± 0.043
2.101ThrPhe: 2.101 ± 0.03
3.519ThrGly: 3.519 ± 0.042
1.361ThrHis: 1.361 ± 0.026
3.677ThrIle: 3.677 ± 0.042
3.363ThrLys: 3.363 ± 0.044
5.197ThrLeu: 5.197 ± 0.052
1.198ThrMet: 1.198 ± 0.023
2.776ThrAsn: 2.776 ± 0.033
3.81ThrPro: 3.81 ± 0.049
2.306ThrGln: 2.306 ± 0.031
3.157ThrArg: 3.157 ± 0.04
6.096ThrSer: 6.096 ± 0.065
4.142ThrThr: 4.142 ± 0.048
3.175ThrVal: 3.175 ± 0.044
0.684ThrTrp: 0.684 ± 0.019
1.572ThrTyr: 1.572 ± 0.026
0.0ThrXaa: 0.0 ± 0.0
Val
3.942ValAla: 3.942 ± 0.043
0.759ValCys: 0.759 ± 0.021
3.215ValAsp: 3.215 ± 0.035
3.763ValGlu: 3.763 ± 0.049
2.136ValPhe: 2.136 ± 0.034
3.195ValGly: 3.195 ± 0.037
1.216ValHis: 1.216 ± 0.024
3.272ValIle: 3.272 ± 0.038
3.194ValLys: 3.194 ± 0.042
4.764ValLeu: 4.764 ± 0.048
1.189ValMet: 1.189 ± 0.022
2.377ValAsn: 2.377 ± 0.03
2.893ValPro: 2.893 ± 0.041
2.135ValGln: 2.135 ± 0.034
2.995ValArg: 2.995 ± 0.038
4.565ValSer: 4.565 ± 0.041
3.174ValThr: 3.174 ± 0.038
3.229ValVal: 3.229 ± 0.049
0.696ValTrp: 0.696 ± 0.02
1.568ValTyr: 1.568 ± 0.031
0.0ValXaa: 0.0 ± 0.0
Trp
0.813TrpAla: 0.813 ± 0.022
0.183TrpCys: 0.183 ± 0.008
0.718TrpAsp: 0.718 ± 0.018
0.766TrpGlu: 0.766 ± 0.018
0.422TrpPhe: 0.422 ± 0.015
0.663TrpGly: 0.663 ± 0.021
0.288TrpHis: 0.288 ± 0.013
0.721TrpIle: 0.721 ± 0.019
0.828TrpLys: 0.828 ± 0.02
1.122TrpLeu: 1.122 ± 0.027
0.31TrpMet: 0.31 ± 0.012
0.638TrpAsn: 0.638 ± 0.019
0.52TrpPro: 0.52 ± 0.016
0.469TrpGln: 0.469 ± 0.014
0.81TrpArg: 0.81 ± 0.017
0.916TrpSer: 0.916 ± 0.021
0.711TrpThr: 0.711 ± 0.019
0.697TrpVal: 0.697 ± 0.017
0.214TrpTrp: 0.214 ± 0.011
0.406TrpTyr: 0.406 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.777TyrAla: 1.777 ± 0.029
0.49TyrCys: 0.49 ± 0.014
1.665TyrAsp: 1.665 ± 0.027
1.72TyrGlu: 1.72 ± 0.027
1.316TyrPhe: 1.316 ± 0.025
1.804TyrGly: 1.804 ± 0.029
0.758TyrHis: 0.758 ± 0.018
1.605TyrIle: 1.605 ± 0.028
1.344TyrLys: 1.344 ± 0.026
2.839TyrLeu: 2.839 ± 0.04
0.655TyrMet: 0.655 ± 0.016
1.298TyrAsn: 1.298 ± 0.026
1.44TyrPro: 1.44 ± 0.024
1.268TyrGln: 1.268 ± 0.025
1.66TyrArg: 1.66 ± 0.031
2.399TyrSer: 2.399 ± 0.037
1.554TyrThr: 1.554 ± 0.027
1.52TyrVal: 1.52 ± 0.03
0.335TyrTrp: 0.335 ± 0.012
0.923TyrTyr: 0.923 ± 0.024
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 5276 proteins (2485222 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