Amino acid dipepetide frequency for Azospirillum sp. L-25-5w-1

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
19.933AlaAla: 19.933 ± 0.188
1.191AlaCys: 1.191 ± 0.028
8.308AlaAsp: 8.308 ± 0.082
7.25AlaGlu: 7.25 ± 0.072
4.148AlaPhe: 4.148 ± 0.056
10.728AlaGly: 10.728 ± 0.101
2.416AlaHis: 2.416 ± 0.041
5.653AlaIle: 5.653 ± 0.065
3.599AlaLys: 3.599 ± 0.058
16.194AlaLeu: 16.194 ± 0.16
3.426AlaMet: 3.426 ± 0.048
2.967AlaAsn: 2.967 ± 0.046
6.172AlaPro: 6.172 ± 0.091
4.136AlaGln: 4.136 ± 0.061
9.63AlaArg: 9.63 ± 0.1
5.935AlaSer: 5.935 ± 0.072
6.861AlaThr: 6.861 ± 0.071
10.673AlaVal: 10.673 ± 0.093
1.548AlaTrp: 1.548 ± 0.035
2.366AlaTyr: 2.366 ± 0.042
0.0AlaXaa: 0.0 ± 0.0
Cys
1.055CysAla: 1.055 ± 0.025
0.109CysCys: 0.109 ± 0.008
0.584CysAsp: 0.584 ± 0.02
0.355CysGlu: 0.355 ± 0.016
0.321CysPhe: 0.321 ± 0.013
0.987CysGly: 0.987 ± 0.026
0.263CysHis: 0.263 ± 0.013
0.305CysIle: 0.305 ± 0.014
0.178CysLys: 0.178 ± 0.01
0.856CysLeu: 0.856 ± 0.024
0.139CysMet: 0.139 ± 0.01
0.187CysAsn: 0.187 ± 0.01
0.506CysPro: 0.506 ± 0.019
0.223CysGln: 0.223 ± 0.011
0.648CysArg: 0.648 ± 0.02
0.404CysSer: 0.404 ± 0.015
0.432CysThr: 0.432 ± 0.018
0.713CysVal: 0.713 ± 0.021
0.13CysTrp: 0.13 ± 0.008
0.192CysTyr: 0.192 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
7.864AspAla: 7.864 ± 0.084
0.458AspCys: 0.458 ± 0.017
3.22AspAsp: 3.22 ± 0.048
3.152AspGlu: 3.152 ± 0.044
1.877AspPhe: 1.877 ± 0.033
6.038AspGly: 6.038 ± 0.061
1.5AspHis: 1.5 ± 0.031
2.613AspIle: 2.613 ± 0.048
1.379AspLys: 1.379 ± 0.031
6.619AspLeu: 6.619 ± 0.066
1.057AspMet: 1.057 ± 0.025
1.199AspAsn: 1.199 ± 0.027
3.882AspPro: 3.882 ± 0.056
1.78AspGln: 1.78 ± 0.035
5.417AspArg: 5.417 ± 0.064
2.864AspSer: 2.864 ± 0.036
2.884AspThr: 2.884 ± 0.047
3.927AspVal: 3.927 ± 0.07
1.003AspTrp: 1.003 ± 0.026
1.191AspTyr: 1.191 ± 0.029
0.0AspXaa: 0.0 ± 0.0
Glu
6.981GluAla: 6.981 ± 0.072
0.325GluCys: 0.325 ± 0.011
2.586GluAsp: 2.586 ± 0.042
2.907GluGlu: 2.907 ± 0.049
1.463GluPhe: 1.463 ± 0.031
3.592GluGly: 3.592 ± 0.049
1.078GluHis: 1.078 ± 0.025
2.666GluIle: 2.666 ± 0.044
1.522GluLys: 1.522 ± 0.042
4.882GluLeu: 4.882 ± 0.059
1.236GluMet: 1.236 ± 0.023
1.144GluAsn: 1.144 ± 0.026
2.404GluPro: 2.404 ± 0.047
2.025GluGln: 2.025 ± 0.038
5.241GluArg: 5.241 ± 0.066
2.318GluSer: 2.318 ± 0.042
2.91GluThr: 2.91 ± 0.069
3.601GluVal: 3.601 ± 0.048
0.601GluTrp: 0.601 ± 0.018
0.787GluTyr: 0.787 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
4.282PheAla: 4.282 ± 0.049
0.38PheCys: 0.38 ± 0.016
2.479PheAsp: 2.479 ± 0.044
1.653PheGlu: 1.653 ± 0.029
1.168PhePhe: 1.168 ± 0.028
3.37PheGly: 3.37 ± 0.047
0.741PheHis: 0.741 ± 0.021
1.354PheIle: 1.354 ± 0.032
0.857PheLys: 0.857 ± 0.021
3.277PheLeu: 3.277 ± 0.051
0.622PheMet: 0.622 ± 0.022
0.931PheAsn: 0.931 ± 0.024
1.621PhePro: 1.621 ± 0.033
1.073PheGln: 1.073 ± 0.024
2.214PheArg: 2.214 ± 0.03
1.793PheSer: 1.793 ± 0.034
2.006PheThr: 2.006 ± 0.033
2.532PheVal: 2.532 ± 0.038
0.45PheTrp: 0.45 ± 0.017
0.783PheTyr: 0.783 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
9.691GlyAla: 9.691 ± 0.104
0.94GlyCys: 0.94 ± 0.028
4.674GlyAsp: 4.674 ± 0.055
4.197GlyGlu: 4.197 ± 0.05
3.467GlyPhe: 3.467 ± 0.044
7.92GlyGly: 7.92 ± 0.111
1.856GlyHis: 1.856 ± 0.037
3.717GlyIle: 3.717 ± 0.05
2.815GlyLys: 2.815 ± 0.041
9.925GlyLeu: 9.925 ± 0.092
2.242GlyMet: 2.242 ± 0.037
2.073GlyAsn: 2.073 ± 0.064
3.795GlyPro: 3.795 ± 0.054
2.889GlyGln: 2.889 ± 0.042
6.756GlyArg: 6.756 ± 0.065
4.346GlySer: 4.346 ± 0.072
4.739GlyThr: 4.739 ± 0.132
7.28GlyVal: 7.28 ± 0.064
1.501GlyTrp: 1.501 ± 0.033
2.113GlyTyr: 2.113 ± 0.035
0.001GlyXaa: 0.001 ± 0.001
His
2.569HisAla: 2.569 ± 0.045
0.207HisCys: 0.207 ± 0.012
1.166HisAsp: 1.166 ± 0.031
0.879HisGlu: 0.879 ± 0.023
0.718HisPhe: 0.718 ± 0.02
1.956HisGly: 1.956 ± 0.036
0.662HisHis: 0.662 ± 0.025
0.876HisIle: 0.876 ± 0.024
0.467HisLys: 0.467 ± 0.016
2.226HisLeu: 2.226 ± 0.037
0.423HisMet: 0.423 ± 0.017
0.434HisAsn: 0.434 ± 0.016
1.6HisPro: 1.6 ± 0.033
0.649HisGln: 0.649 ± 0.019
1.83HisArg: 1.83 ± 0.037
1.025HisSer: 1.025 ± 0.024
0.96HisThr: 0.96 ± 0.027
1.288HisVal: 1.288 ± 0.035
0.34HisTrp: 0.34 ± 0.016
0.492HisTyr: 0.492 ± 0.017
0.0HisXaa: 0.0 ± 0.0
Ile
6.563IleAla: 6.563 ± 0.066
0.34IleCys: 0.34 ± 0.014
3.405IleAsp: 3.405 ± 0.048
2.679IleGlu: 2.679 ± 0.044
1.173IlePhe: 1.173 ± 0.03
4.672IleGly: 4.672 ± 0.052
0.931IleHis: 0.931 ± 0.024
1.706IleIle: 1.706 ± 0.038
1.161IleLys: 1.161 ± 0.031
4.282IleLeu: 4.282 ± 0.053
0.72IleMet: 0.72 ± 0.025
1.271IleAsn: 1.271 ± 0.027
2.224IlePro: 2.224 ± 0.037
1.22IleGln: 1.22 ± 0.027
3.089IleArg: 3.089 ± 0.043
1.948IleSer: 1.948 ± 0.037
2.582IleThr: 2.582 ± 0.049
3.498IleVal: 3.498 ± 0.045
0.37IleTrp: 0.37 ± 0.018
0.787IleTyr: 0.787 ± 0.022
0.0IleXaa: 0.0 ± 0.0
Lys
3.789LysAla: 3.789 ± 0.064
0.113LysCys: 0.113 ± 0.009
1.459LysAsp: 1.459 ± 0.037
1.322LysGlu: 1.322 ± 0.034
0.667LysPhe: 0.667 ± 0.02
2.298LysGly: 2.298 ± 0.045
0.468LysHis: 0.468 ± 0.018
1.344LysIle: 1.344 ± 0.031
0.963LysLys: 0.963 ± 0.035
2.732LysLeu: 2.732 ± 0.052
0.605LysMet: 0.605 ± 0.021
0.695LysAsn: 0.695 ± 0.024
1.868LysPro: 1.868 ± 0.047
0.816LysGln: 0.816 ± 0.022
2.092LysArg: 2.092 ± 0.039
1.456LysSer: 1.456 ± 0.029
1.778LysThr: 1.778 ± 0.033
1.92LysVal: 1.92 ± 0.042
0.248LysTrp: 0.248 ± 0.011
0.442LysTyr: 0.442 ± 0.016
0.0LysXaa: 0.0 ± 0.0
Leu
14.894LeuAla: 14.894 ± 0.128
1.075LeuCys: 1.075 ± 0.025
6.729LeuAsp: 6.729 ± 0.078
5.131LeuGlu: 5.131 ± 0.068
3.964LeuPhe: 3.964 ± 0.053
8.608LeuGly: 8.608 ± 0.077
2.125LeuHis: 2.125 ± 0.039
4.694LeuIle: 4.694 ± 0.056
2.973LeuLys: 2.973 ± 0.049
10.888LeuLeu: 10.888 ± 0.119
2.316LeuMet: 2.316 ± 0.038
2.644LeuAsn: 2.644 ± 0.037
6.377LeuPro: 6.377 ± 0.079
2.345LeuGln: 2.345 ± 0.041
8.288LeuArg: 8.288 ± 0.085
6.931LeuSer: 6.931 ± 0.069
6.97LeuThr: 6.97 ± 0.077
7.95LeuVal: 7.95 ± 0.08
1.286LeuTrp: 1.286 ± 0.03
2.015LeuTyr: 2.015 ± 0.04
0.0LeuXaa: 0.0 ± 0.0
Met
3.219MetAla: 3.219 ± 0.043
0.128MetCys: 0.128 ± 0.009
1.205MetAsp: 1.205 ± 0.025
1.08MetGlu: 1.08 ± 0.028
0.56MetPhe: 0.56 ± 0.019
1.789MetGly: 1.789 ± 0.032
0.343MetHis: 0.343 ± 0.013
1.114MetIle: 1.114 ± 0.029
0.711MetLys: 0.711 ± 0.021
2.154MetLeu: 2.154 ± 0.038
0.643MetMet: 0.643 ± 0.018
0.633MetAsn: 0.633 ± 0.02
1.364MetPro: 1.364 ± 0.027
0.623MetGln: 0.623 ± 0.022
1.497MetArg: 1.497 ± 0.028
1.426MetSer: 1.426 ± 0.028
1.99MetThr: 1.99 ± 0.034
1.753MetVal: 1.753 ± 0.036
0.169MetTrp: 0.169 ± 0.01
0.249MetTyr: 0.249 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
3.313AsnAla: 3.313 ± 0.05
0.205AsnCys: 0.205 ± 0.011
1.407AsnAsp: 1.407 ± 0.035
0.976AsnGlu: 0.976 ± 0.026
0.741AsnPhe: 0.741 ± 0.024
2.338AsnGly: 2.338 ± 0.038
0.526AsnHis: 0.526 ± 0.019
1.055AsnIle: 1.055 ± 0.026
0.604AsnLys: 0.604 ± 0.023
2.619AsnLeu: 2.619 ± 0.047
0.459AsnMet: 0.459 ± 0.016
0.605AsnAsn: 0.605 ± 0.02
1.771AsnPro: 1.771 ± 0.036
0.731AsnGln: 0.731 ± 0.024
2.059AsnArg: 2.059 ± 0.038
1.129AsnSer: 1.129 ± 0.026
1.284AsnThr: 1.284 ± 0.052
1.61AsnVal: 1.61 ± 0.037
0.317AsnTrp: 0.317 ± 0.015
0.487AsnTyr: 0.487 ± 0.018
0.0AsnXaa: 0.0 ± 0.0
Pro
6.813ProAla: 6.813 ± 0.093
0.361ProCys: 0.361 ± 0.014
4.259ProAsp: 4.259 ± 0.059
3.123ProGlu: 3.123 ± 0.05
1.959ProPhe: 1.959 ± 0.032
4.691ProGly: 4.691 ± 0.062
1.139ProHis: 1.139 ± 0.023
2.132ProIle: 2.132 ± 0.034
1.423ProLys: 1.423 ± 0.029
5.612ProLeu: 5.612 ± 0.071
1.274ProMet: 1.274 ± 0.03
1.364ProAsn: 1.364 ± 0.028
3.772ProPro: 3.772 ± 0.088
1.565ProGln: 1.565 ± 0.039
3.11ProArg: 3.11 ± 0.046
2.973ProSer: 2.973 ± 0.048
3.355ProThr: 3.355 ± 0.046
4.723ProVal: 4.723 ± 0.057
0.766ProTrp: 0.766 ± 0.022
1.058ProTyr: 1.058 ± 0.024
0.0ProXaa: 0.0 ± 0.0
Gln
4.324GlnAla: 4.324 ± 0.061
0.176GlnCys: 0.176 ± 0.008
1.487GlnAsp: 1.487 ± 0.028
1.4GlnGlu: 1.4 ± 0.033
0.891GlnPhe: 0.891 ± 0.023
2.487GlnGly: 2.487 ± 0.039
0.615GlnHis: 0.615 ± 0.021
1.61GlnIle: 1.61 ± 0.031
0.828GlnLys: 0.828 ± 0.024
2.513GlnLeu: 2.513 ± 0.045
0.725GlnMet: 0.725 ± 0.022
0.732GlnAsn: 0.732 ± 0.021
1.927GlnPro: 1.927 ± 0.036
1.146GlnGln: 1.146 ± 0.032
2.741GlnArg: 2.741 ± 0.044
1.701GlnSer: 1.701 ± 0.035
1.947GlnThr: 1.947 ± 0.038
2.025GlnVal: 2.025 ± 0.035
0.344GlnTrp: 0.344 ± 0.012
0.504GlnTyr: 0.504 ± 0.017
0.0GlnXaa: 0.0 ± 0.0
Arg
9.54ArgAla: 9.54 ± 0.101
0.693ArgCys: 0.693 ± 0.021
4.451ArgAsp: 4.451 ± 0.058
3.461ArgGlu: 3.461 ± 0.054
3.159ArgPhe: 3.159 ± 0.04
5.143ArgGly: 5.143 ± 0.057
1.919ArgHis: 1.919 ± 0.038
3.799ArgIle: 3.799 ± 0.049
1.982ArgLys: 1.982 ± 0.041
9.598ArgLeu: 9.598 ± 0.096
1.915ArgMet: 1.915 ± 0.03
1.821ArgAsn: 1.821 ± 0.033
3.981ArgPro: 3.981 ± 0.052
2.548ArgGln: 2.548 ± 0.044
6.759ArgArg: 6.759 ± 0.084
3.746ArgSer: 3.746 ± 0.05
3.388ArgThr: 3.388 ± 0.049
5.906ArgVal: 5.906 ± 0.065
1.182ArgTrp: 1.182 ± 0.028
1.605ArgTyr: 1.605 ± 0.03
0.0ArgXaa: 0.0 ± 0.0
Ser
6.683SerAla: 6.683 ± 0.069
0.42SerCys: 0.42 ± 0.016
2.817SerAsp: 2.817 ± 0.046
2.093SerGlu: 2.093 ± 0.037
2.03SerPhe: 2.03 ± 0.034
5.555SerGly: 5.555 ± 0.074
1.049SerHis: 1.049 ± 0.029
2.28SerIle: 2.28 ± 0.043
1.254SerLys: 1.254 ± 0.031
5.611SerLeu: 5.611 ± 0.066
1.122SerMet: 1.122 ± 0.028
1.261SerAsn: 1.261 ± 0.026
2.838SerPro: 2.838 ± 0.041
1.473SerGln: 1.473 ± 0.033
3.371SerArg: 3.371 ± 0.047
2.673SerSer: 2.673 ± 0.055
2.668SerThr: 2.668 ± 0.043
4.272SerVal: 4.272 ± 0.053
0.666SerTrp: 0.666 ± 0.021
1.141SerTyr: 1.141 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
7.529ThrAla: 7.529 ± 0.073
0.369ThrCys: 0.369 ± 0.016
3.497ThrAsp: 3.497 ± 0.072
2.465ThrGlu: 2.465 ± 0.041
1.543ThrPhe: 1.543 ± 0.035
5.354ThrGly: 5.354 ± 0.103
1.051ThrHis: 1.051 ± 0.024
2.717ThrIle: 2.717 ± 0.049
1.326ThrLys: 1.326 ± 0.033
6.901ThrLeu: 6.901 ± 0.141
1.191ThrMet: 1.191 ± 0.027
1.392ThrAsn: 1.392 ± 0.028
3.767ThrPro: 3.767 ± 0.056
1.531ThrGln: 1.531 ± 0.036
3.615ThrArg: 3.615 ± 0.045
2.585ThrSer: 2.585 ± 0.044
3.143ThrThr: 3.143 ± 0.055
5.163ThrVal: 5.163 ± 0.056
0.489ThrTrp: 0.489 ± 0.019
0.972ThrTyr: 0.972 ± 0.026
0.0ThrXaa: 0.0 ± 0.0
Val
10.441ValAla: 10.441 ± 0.094
0.74ValCys: 0.74 ± 0.024
4.249ValAsp: 4.249 ± 0.058
4.617ValGlu: 4.617 ± 0.061
2.554ValPhe: 2.554 ± 0.037
6.637ValGly: 6.637 ± 0.071
1.364ValHis: 1.364 ± 0.029
3.633ValIle: 3.633 ± 0.052
2.142ValLys: 2.142 ± 0.042
7.612ValLeu: 7.612 ± 0.071
1.845ValMet: 1.845 ± 0.034
2.005ValAsn: 2.005 ± 0.042
3.975ValPro: 3.975 ± 0.053
2.227ValGln: 2.227 ± 0.039
5.337ValArg: 5.337 ± 0.053
4.265ValSer: 4.265 ± 0.057
4.881ValThr: 4.881 ± 0.072
6.593ValVal: 6.593 ± 0.073
1.021ValTrp: 1.021 ± 0.024
1.44ValTyr: 1.44 ± 0.031
0.001ValXaa: 0.001 ± 0.001
Trp
1.332TrpAla: 1.332 ± 0.028
0.141TrpCys: 0.141 ± 0.01
0.645TrpAsp: 0.645 ± 0.022
0.552TrpGlu: 0.552 ± 0.02
0.486TrpPhe: 0.486 ± 0.017
0.894TrpGly: 0.894 ± 0.024
0.284TrpHis: 0.284 ± 0.01
0.605TrpIle: 0.605 ± 0.019
0.365TrpLys: 0.365 ± 0.015
1.693TrpLeu: 1.693 ± 0.035
0.348TrpMet: 0.348 ± 0.014
0.371TrpAsn: 0.371 ± 0.013
0.656TrpPro: 0.656 ± 0.019
0.462TrpGln: 0.462 ± 0.016
1.218TrpArg: 1.218 ± 0.03
0.776TrpSer: 0.776 ± 0.026
0.809TrpThr: 0.809 ± 0.022
0.838TrpVal: 0.838 ± 0.023
0.227TrpTrp: 0.227 ± 0.012
0.274TrpTyr: 0.274 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.319TyrAla: 2.319 ± 0.037
0.217TyrCys: 0.217 ± 0.01
1.299TyrAsp: 1.299 ± 0.028
0.976TyrGlu: 0.976 ± 0.027
0.695TyrPhe: 0.695 ± 0.025
1.879TyrGly: 1.879 ± 0.037
0.437TyrHis: 0.437 ± 0.016
0.746TyrIle: 0.746 ± 0.022
0.527TyrLys: 0.527 ± 0.02
2.011TyrLeu: 2.011 ± 0.04
0.339TyrMet: 0.339 ± 0.014
0.508TyrAsn: 0.508 ± 0.017
0.973TyrPro: 0.973 ± 0.025
0.662TyrGln: 0.662 ± 0.019
1.683TyrArg: 1.683 ± 0.034
0.983TyrSer: 0.983 ± 0.024
1.015TyrThr: 1.015 ± 0.026
1.31TyrVal: 1.31 ± 0.03
0.319TyrTrp: 0.319 ± 0.015
0.487TyrTyr: 0.487 ± 0.019
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
0.001XaaArg: 0.001 ± 0.001
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
0.002XaaXaa: 0.002 ± 0.002
Statistics based on 5160 proteins (1727630 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