Amino acid dipepetide frequency for Nocardioides sp. dk884

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
20.66AlaAla: 20.66 ± 0.187
1.012AlaCys: 1.012 ± 0.032
8.332AlaAsp: 8.332 ± 0.082
8.889AlaGlu: 8.889 ± 0.105
3.412AlaPhe: 3.412 ± 0.062
13.025AlaGly: 13.025 ± 0.124
2.817AlaHis: 2.817 ± 0.054
4.257AlaIle: 4.257 ± 0.073
2.388AlaLys: 2.388 ± 0.057
14.099AlaLeu: 14.099 ± 0.149
2.757AlaMet: 2.757 ± 0.052
1.86AlaAsn: 1.86 ± 0.039
6.902AlaPro: 6.902 ± 0.083
3.78AlaGln: 3.78 ± 0.058
10.603AlaArg: 10.603 ± 0.1
6.45AlaSer: 6.45 ± 0.084
7.645AlaThr: 7.645 ± 0.101
11.945AlaVal: 11.945 ± 0.112
1.993AlaTrp: 1.993 ± 0.034
2.534AlaTyr: 2.534 ± 0.045
0.0AlaXaa: 0.0 ± 0.0
Cys
0.939CysAla: 0.939 ± 0.029
0.072CysCys: 0.072 ± 0.008
0.519CysAsp: 0.519 ± 0.02
0.446CysGlu: 0.446 ± 0.02
0.204CysPhe: 0.204 ± 0.012
0.834CysGly: 0.834 ± 0.025
0.181CysHis: 0.181 ± 0.014
0.163CysIle: 0.163 ± 0.012
0.081CysLys: 0.081 ± 0.008
0.686CysLeu: 0.686 ± 0.025
0.114CysMet: 0.114 ± 0.009
0.139CysAsn: 0.139 ± 0.011
0.433CysPro: 0.433 ± 0.018
0.17CysGln: 0.17 ± 0.012
0.56CysArg: 0.56 ± 0.022
0.456CysSer: 0.456 ± 0.018
0.469CysThr: 0.469 ± 0.018
0.646CysVal: 0.646 ± 0.023
0.117CysTrp: 0.117 ± 0.01
0.143CysTyr: 0.143 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
8.047AspAla: 8.047 ± 0.083
0.385AspCys: 0.385 ± 0.018
4.131AspAsp: 4.131 ± 0.073
4.13AspGlu: 4.13 ± 0.057
1.603AspPhe: 1.603 ± 0.038
6.147AspGly: 6.147 ± 0.078
1.478AspHis: 1.478 ± 0.04
1.788AspIle: 1.788 ± 0.044
1.029AspLys: 1.029 ± 0.035
7.592AspLeu: 7.592 ± 0.081
0.81AspMet: 0.81 ± 0.025
0.925AspAsn: 0.925 ± 0.029
4.939AspPro: 4.939 ± 0.072
1.692AspGln: 1.692 ± 0.04
4.789AspArg: 4.789 ± 0.067
2.42AspSer: 2.42 ± 0.045
2.957AspThr: 2.957 ± 0.055
5.807AspVal: 5.807 ± 0.065
0.965AspTrp: 0.965 ± 0.032
1.141AspTyr: 1.141 ± 0.035
0.0AspXaa: 0.0 ± 0.0
Glu
7.524GluAla: 7.524 ± 0.087
0.353GluCys: 0.353 ± 0.018
3.563GluAsp: 3.563 ± 0.058
4.061GluGlu: 4.061 ± 0.063
1.419GluPhe: 1.419 ± 0.039
4.447GluGly: 4.447 ± 0.062
1.832GluHis: 1.832 ± 0.039
2.47GluIle: 2.47 ± 0.05
1.228GluLys: 1.228 ± 0.038
6.871GluLeu: 6.871 ± 0.081
0.976GluMet: 0.976 ± 0.03
0.869GluAsn: 0.869 ± 0.028
3.274GluPro: 3.274 ± 0.058
2.523GluGln: 2.523 ± 0.051
5.685GluArg: 5.685 ± 0.075
2.736GluSer: 2.736 ± 0.044
3.077GluThr: 3.077 ± 0.05
5.983GluVal: 5.983 ± 0.076
0.843GluTrp: 0.843 ± 0.026
0.977GluTyr: 0.977 ± 0.029
0.0GluXaa: 0.0 ± 0.0
Phe
3.573PheAla: 3.573 ± 0.055
0.272PheCys: 0.272 ± 0.016
1.98PheAsp: 1.98 ± 0.04
1.617PheGlu: 1.617 ± 0.033
0.836PhePhe: 0.836 ± 0.028
2.963PheGly: 2.963 ± 0.05
0.605PheHis: 0.605 ± 0.02
0.697PheIle: 0.697 ± 0.023
0.428PheLys: 0.428 ± 0.02
2.563PheLeu: 2.563 ± 0.057
0.393PheMet: 0.393 ± 0.016
0.569PheAsn: 0.569 ± 0.02
1.236PhePro: 1.236 ± 0.027
0.569PheGln: 0.569 ± 0.021
1.668PheArg: 1.668 ± 0.034
1.396PheSer: 1.396 ± 0.035
1.792PheThr: 1.792 ± 0.034
2.524PheVal: 2.524 ± 0.041
0.401PheTrp: 0.401 ± 0.018
0.565PheTyr: 0.565 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
11.218GlyAla: 11.218 ± 0.109
0.858GlyCys: 0.858 ± 0.027
5.257GlyAsp: 5.257 ± 0.07
5.615GlyGlu: 5.615 ± 0.064
2.863GlyPhe: 2.863 ± 0.05
8.056GlyGly: 8.056 ± 0.095
2.103GlyHis: 2.103 ± 0.041
3.553GlyIle: 3.553 ± 0.047
1.986GlyLys: 1.986 ± 0.046
9.414GlyLeu: 9.414 ± 0.101
2.012GlyMet: 2.012 ± 0.04
1.57GlyAsn: 1.57 ± 0.042
4.92GlyPro: 4.92 ± 0.057
2.492GlyGln: 2.492 ± 0.055
7.371GlyArg: 7.371 ± 0.072
5.221GlySer: 5.221 ± 0.071
5.861GlyThr: 5.861 ± 0.079
8.247GlyVal: 8.247 ± 0.083
1.738GlyTrp: 1.738 ± 0.047
2.114GlyTyr: 2.114 ± 0.045
0.0GlyXaa: 0.0 ± 0.0
His
2.716HisAla: 2.716 ± 0.049
0.187HisCys: 0.187 ± 0.012
1.615HisAsp: 1.615 ± 0.043
1.29HisGlu: 1.29 ± 0.034
0.523HisPhe: 0.523 ± 0.018
2.304HisGly: 2.304 ± 0.045
0.841HisHis: 0.841 ± 0.03
0.466HisIle: 0.466 ± 0.021
0.278HisLys: 0.278 ± 0.015
2.575HisLeu: 2.575 ± 0.044
0.318HisMet: 0.318 ± 0.016
0.315HisAsn: 0.315 ± 0.015
1.725HisPro: 1.725 ± 0.036
0.643HisGln: 0.643 ± 0.022
2.053HisArg: 2.053 ± 0.041
0.862HisSer: 0.862 ± 0.026
1.179HisThr: 1.179 ± 0.029
2.044HisVal: 2.044 ± 0.038
0.328HisTrp: 0.328 ± 0.016
0.443HisTyr: 0.443 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
4.875IleAla: 4.875 ± 0.076
0.277IleCys: 0.277 ± 0.015
2.552IleAsp: 2.552 ± 0.044
2.238IleGlu: 2.238 ± 0.047
0.8IlePhe: 0.8 ± 0.026
3.62IleGly: 3.62 ± 0.056
0.635IleHis: 0.635 ± 0.025
0.936IleIle: 0.936 ± 0.029
0.698IleLys: 0.698 ± 0.028
2.427IleLeu: 2.427 ± 0.054
0.448IleMet: 0.448 ± 0.02
0.754IleAsn: 0.754 ± 0.025
1.66IlePro: 1.66 ± 0.039
0.69IleGln: 0.69 ± 0.022
2.06IleArg: 2.06 ± 0.044
1.797IleSer: 1.797 ± 0.038
2.185IleThr: 2.185 ± 0.045
3.034IleVal: 3.034 ± 0.048
0.396IleTrp: 0.396 ± 0.018
0.545IleTyr: 0.545 ± 0.02
0.0IleXaa: 0.0 ± 0.0
Lys
2.377LysAla: 2.377 ± 0.059
0.072LysCys: 0.072 ± 0.007
0.998LysAsp: 0.998 ± 0.032
0.933LysGlu: 0.933 ± 0.033
0.436LysPhe: 0.436 ± 0.019
1.362LysGly: 1.362 ± 0.038
0.382LysHis: 0.382 ± 0.018
0.8LysIle: 0.8 ± 0.028
0.667LysLys: 0.667 ± 0.036
1.485LysLeu: 1.485 ± 0.038
0.352LysMet: 0.352 ± 0.018
0.387LysAsn: 0.387 ± 0.019
1.078LysPro: 1.078 ± 0.031
0.592LysGln: 0.592 ± 0.024
1.323LysArg: 1.323 ± 0.037
0.948LysSer: 0.948 ± 0.036
1.092LysThr: 1.092 ± 0.034
1.82LysVal: 1.82 ± 0.047
0.196LysTrp: 0.196 ± 0.013
0.357LysTyr: 0.357 ± 0.019
0.0LysXaa: 0.0 ± 0.0
Leu
16.19LeuAla: 16.19 ± 0.141
0.736LeuCys: 0.736 ± 0.027
7.289LeuAsp: 7.289 ± 0.086
5.907LeuGlu: 5.907 ± 0.077
2.401LeuPhe: 2.401 ± 0.044
10.061LeuGly: 10.061 ± 0.091
2.129LeuHis: 2.129 ± 0.041
2.926LeuIle: 2.926 ± 0.063
1.488LeuLys: 1.488 ± 0.04
11.026LeuLeu: 11.026 ± 0.143
1.629LeuMet: 1.629 ± 0.033
1.466LeuAsn: 1.466 ± 0.037
5.795LeuPro: 5.795 ± 0.064
2.253LeuGln: 2.253 ± 0.041
8.329LeuArg: 8.329 ± 0.084
5.247LeuSer: 5.247 ± 0.068
6.171LeuThr: 6.171 ± 0.08
10.787LeuVal: 10.787 ± 0.117
1.178LeuTrp: 1.178 ± 0.031
1.404LeuTyr: 1.404 ± 0.034
0.0LeuXaa: 0.0 ± 0.0
Met
2.176MetAla: 2.176 ± 0.04
0.142MetCys: 0.142 ± 0.01
0.842MetAsp: 0.842 ± 0.025
0.78MetGlu: 0.78 ± 0.024
0.466MetPhe: 0.466 ± 0.022
1.376MetGly: 1.376 ± 0.036
0.393MetHis: 0.393 ± 0.017
0.653MetIle: 0.653 ± 0.022
0.423MetLys: 0.423 ± 0.018
1.868MetLeu: 1.868 ± 0.042
0.317MetMet: 0.317 ± 0.016
0.382MetAsn: 0.382 ± 0.017
1.088MetPro: 1.088 ± 0.029
0.461MetGln: 0.461 ± 0.02
1.458MetArg: 1.458 ± 0.034
1.619MetSer: 1.619 ± 0.031
1.519MetThr: 1.519 ± 0.04
1.515MetVal: 1.515 ± 0.034
0.194MetTrp: 0.194 ± 0.012
0.264MetTyr: 0.264 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.003AsnAla: 2.003 ± 0.045
0.115AsnCys: 0.115 ± 0.009
0.968AsnAsp: 0.968 ± 0.031
0.808AsnGlu: 0.808 ± 0.026
0.452AsnPhe: 0.452 ± 0.019
1.55AsnGly: 1.55 ± 0.039
0.362AsnHis: 0.362 ± 0.018
0.599AsnIle: 0.599 ± 0.025
0.353AsnLys: 0.353 ± 0.018
1.729AsnLeu: 1.729 ± 0.037
0.255AsnMet: 0.255 ± 0.015
0.377AsnAsn: 0.377 ± 0.02
1.306AsnPro: 1.306 ± 0.036
0.467AsnGln: 0.467 ± 0.021
1.122AsnArg: 1.122 ± 0.031
0.679AsnSer: 0.679 ± 0.026
0.907AsnThr: 0.907 ± 0.03
1.382AsnVal: 1.382 ± 0.035
0.231AsnTrp: 0.231 ± 0.013
0.36AsnTyr: 0.36 ± 0.019
0.0AsnXaa: 0.0 ± 0.0
Pro
8.094ProAla: 8.094 ± 0.096
0.295ProCys: 0.295 ± 0.017
4.409ProAsp: 4.409 ± 0.065
4.277ProGlu: 4.277 ± 0.063
1.442ProPhe: 1.442 ± 0.033
6.25ProGly: 6.25 ± 0.078
1.283ProHis: 1.283 ± 0.032
1.525ProIle: 1.525 ± 0.033
0.888ProLys: 0.888 ± 0.034
5.081ProLeu: 5.081 ± 0.064
1.031ProMet: 1.031 ± 0.026
0.741ProAsn: 0.741 ± 0.027
2.792ProPro: 2.792 ± 0.051
1.481ProGln: 1.481 ± 0.036
4.035ProArg: 4.035 ± 0.065
2.924ProSer: 2.924 ± 0.059
3.508ProThr: 3.508 ± 0.06
5.43ProVal: 5.43 ± 0.078
0.961ProTrp: 0.961 ± 0.033
1.111ProTyr: 1.111 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
3.507GlnAla: 3.507 ± 0.051
0.15GlnCys: 0.15 ± 0.012
1.236GlnAsp: 1.236 ± 0.028
1.375GlnGlu: 1.375 ± 0.033
0.689GlnPhe: 0.689 ± 0.021
2.067GlnGly: 2.067 ± 0.046
0.716GlnHis: 0.716 ± 0.026
1.02GlnIle: 1.02 ± 0.029
0.485GlnLys: 0.485 ± 0.023
2.932GlnLeu: 2.932 ± 0.052
0.548GlnMet: 0.548 ± 0.024
0.419GlnAsn: 0.419 ± 0.021
1.54GlnPro: 1.54 ± 0.038
1.044GlnGln: 1.044 ± 0.036
2.597GlnArg: 2.597 ± 0.052
1.172GlnSer: 1.172 ± 0.031
1.31GlnThr: 1.31 ± 0.035
2.965GlnVal: 2.965 ± 0.053
0.42GlnTrp: 0.42 ± 0.018
0.469GlnTyr: 0.469 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
10.166ArgAla: 10.166 ± 0.097
0.562ArgCys: 0.562 ± 0.019
4.614ArgAsp: 4.614 ± 0.068
4.91ArgGlu: 4.91 ± 0.077
2.289ArgPhe: 2.289 ± 0.046
6.052ArgGly: 6.052 ± 0.074
1.946ArgHis: 1.946 ± 0.04
2.904ArgIle: 2.904 ± 0.052
1.299ArgLys: 1.299 ± 0.035
8.639ArgLeu: 8.639 ± 0.091
1.766ArgMet: 1.766 ± 0.035
1.18ArgAsn: 1.18 ± 0.034
4.691ArgPro: 4.691 ± 0.07
2.15ArgGln: 2.15 ± 0.043
8.13ArgArg: 8.13 ± 0.108
4.131ArgSer: 4.131 ± 0.056
4.934ArgThr: 4.934 ± 0.064
6.799ArgVal: 6.799 ± 0.081
1.448ArgTrp: 1.448 ± 0.038
1.536ArgTyr: 1.536 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
6.517SerAla: 6.517 ± 0.082
0.372SerCys: 0.372 ± 0.017
2.795SerAsp: 2.795 ± 0.048
2.583SerGlu: 2.583 ± 0.045
1.647SerPhe: 1.647 ± 0.041
5.518SerGly: 5.518 ± 0.077
0.984SerHis: 0.984 ± 0.026
1.7SerIle: 1.7 ± 0.037
0.851SerLys: 0.851 ± 0.028
4.954SerLeu: 4.954 ± 0.069
1.207SerMet: 1.207 ± 0.033
0.825SerAsn: 0.825 ± 0.028
3.027SerPro: 3.027 ± 0.045
1.219SerGln: 1.219 ± 0.031
3.656SerArg: 3.656 ± 0.057
2.953SerSer: 2.953 ± 0.049
3.35SerThr: 3.35 ± 0.052
4.458SerVal: 4.458 ± 0.058
0.902SerTrp: 0.902 ± 0.024
1.237SerTyr: 1.237 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
7.382ThrAla: 7.382 ± 0.086
0.441ThrCys: 0.441 ± 0.021
3.534ThrAsp: 3.534 ± 0.058
3.166ThrGlu: 3.166 ± 0.058
1.737ThrPhe: 1.737 ± 0.04
6.145ThrGly: 6.145 ± 0.071
1.277ThrHis: 1.277 ± 0.033
2.172ThrIle: 2.172 ± 0.047
0.979ThrLys: 0.979 ± 0.036
5.767ThrLeu: 5.767 ± 0.063
1.045ThrMet: 1.045 ± 0.027
1.0ThrAsn: 1.0 ± 0.033
3.987ThrPro: 3.987 ± 0.063
1.345ThrGln: 1.345 ± 0.036
4.239ThrArg: 4.239 ± 0.07
3.278ThrSer: 3.278 ± 0.054
4.098ThrThr: 4.098 ± 0.062
5.521ThrVal: 5.521 ± 0.086
1.001ThrTrp: 1.001 ± 0.031
1.47ThrTyr: 1.47 ± 0.037
0.0ThrXaa: 0.0 ± 0.0
Val
13.036ValAla: 13.036 ± 0.127
0.709ValCys: 0.709 ± 0.024
5.77ValAsp: 5.77 ± 0.06
5.986ValGlu: 5.986 ± 0.073
2.322ValPhe: 2.322 ± 0.046
7.767ValGly: 7.767 ± 0.089
2.05ValHis: 2.05 ± 0.038
3.062ValIle: 3.062 ± 0.059
1.505ValLys: 1.505 ± 0.038
10.831ValLeu: 10.831 ± 0.109
1.47ValMet: 1.47 ± 0.04
1.593ValAsn: 1.593 ± 0.041
5.477ValPro: 5.477 ± 0.075
2.121ValGln: 2.121 ± 0.041
7.581ValArg: 7.581 ± 0.078
4.638ValSer: 4.638 ± 0.068
5.567ValThr: 5.567 ± 0.078
10.622ValVal: 10.622 ± 0.129
1.147ValTrp: 1.147 ± 0.028
1.432ValTyr: 1.432 ± 0.034
0.0ValXaa: 0.0 ± 0.0
Trp
1.662TrpAla: 1.662 ± 0.04
0.208TrpCys: 0.208 ± 0.012
0.824TrpAsp: 0.824 ± 0.029
0.716TrpGlu: 0.716 ± 0.022
0.522TrpPhe: 0.522 ± 0.02
1.078TrpGly: 1.078 ± 0.031
0.369TrpHis: 0.369 ± 0.018
0.517TrpIle: 0.517 ± 0.018
0.301TrpLys: 0.301 ± 0.017
1.78TrpLeu: 1.78 ± 0.041
0.284TrpMet: 0.284 ± 0.014
0.33TrpAsn: 0.33 ± 0.016
0.743TrpPro: 0.743 ± 0.024
0.522TrpGln: 0.522 ± 0.02
1.374TrpArg: 1.374 ± 0.034
0.949TrpSer: 0.949 ± 0.03
0.975TrpThr: 0.975 ± 0.032
1.305TrpVal: 1.305 ± 0.035
0.371TrpTrp: 0.371 ± 0.018
0.287TrpTyr: 0.287 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.698TyrAla: 2.698 ± 0.049
0.155TyrCys: 0.155 ± 0.01
1.55TyrAsp: 1.55 ± 0.035
0.986TyrGlu: 0.986 ± 0.031
0.587TyrPhe: 0.587 ± 0.021
1.844TyrGly: 1.844 ± 0.042
0.32TyrHis: 0.32 ± 0.017
0.417TyrIle: 0.417 ± 0.02
0.304TyrLys: 0.304 ± 0.016
2.094TyrLeu: 2.094 ± 0.045
0.203TyrMet: 0.203 ± 0.013
0.322TyrAsn: 0.322 ± 0.018
0.942TyrPro: 0.942 ± 0.032
0.449TyrGln: 0.449 ± 0.022
1.513TyrArg: 1.513 ± 0.038
0.88TyrSer: 0.88 ± 0.025
0.987TyrThr: 0.987 ± 0.03
1.852TyrVal: 1.852 ± 0.037
0.286TyrTrp: 0.286 ± 0.015
0.404TyrTyr: 0.404 ± 0.02
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 3911 proteins (1273211 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