Amino acid dipepetide frequency for Crinalium epipsammum PCC 9333

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
7.015AlaAla: 7.015 ± 0.086
0.824AlaCys: 0.824 ± 0.025
4.04AlaAsp: 4.04 ± 0.064
5.422AlaGlu: 5.422 ± 0.067
2.791AlaPhe: 2.791 ± 0.041
5.321AlaGly: 5.321 ± 0.069
1.275AlaHis: 1.275 ± 0.03
6.932AlaIle: 6.932 ± 0.084
4.244AlaLys: 4.244 ± 0.058
8.424AlaLeu: 8.424 ± 0.1
1.616AlaMet: 1.616 ± 0.041
3.553AlaAsn: 3.553 ± 0.067
2.763AlaPro: 2.763 ± 0.05
4.012AlaGln: 4.012 ± 0.055
3.586AlaArg: 3.586 ± 0.058
4.967AlaSer: 4.967 ± 0.075
4.785AlaThr: 4.785 ± 0.064
5.629AlaVal: 5.629 ± 0.074
1.006AlaTrp: 1.006 ± 0.029
2.307AlaTyr: 2.307 ± 0.049
0.0AlaXaa: 0.0 ± 0.0
Cys
0.602CysAla: 0.602 ± 0.02
0.172CysCys: 0.172 ± 0.011
0.583CysAsp: 0.583 ± 0.02
0.567CysGlu: 0.567 ± 0.018
0.395CysPhe: 0.395 ± 0.016
0.786CysGly: 0.786 ± 0.023
0.267CysHis: 0.267 ± 0.015
0.59CysIle: 0.59 ± 0.021
0.363CysLys: 0.363 ± 0.016
1.094CysLeu: 1.094 ± 0.028
0.152CysMet: 0.152 ± 0.012
0.446CysAsn: 0.446 ± 0.016
0.546CysPro: 0.546 ± 0.021
0.594CysGln: 0.594 ± 0.022
0.542CysArg: 0.542 ± 0.019
0.651CysSer: 0.651 ± 0.023
0.475CysThr: 0.475 ± 0.022
0.606CysVal: 0.606 ± 0.021
0.143CysTrp: 0.143 ± 0.011
0.357CysTyr: 0.357 ± 0.017
0.0CysXaa: 0.0 ± 0.0
Asp
3.782AspAla: 3.782 ± 0.051
0.506AspCys: 0.506 ± 0.018
2.164AspAsp: 2.164 ± 0.046
2.995AspGlu: 2.995 ± 0.055
2.344AspPhe: 2.344 ± 0.046
3.188AspGly: 3.188 ± 0.068
0.757AspHis: 0.757 ± 0.025
3.398AspIle: 3.398 ± 0.053
2.276AspLys: 2.276 ± 0.042
5.843AspLeu: 5.843 ± 0.067
0.741AspMet: 0.741 ± 0.024
2.106AspAsn: 2.106 ± 0.04
2.232AspPro: 2.232 ± 0.047
2.32AspGln: 2.32 ± 0.051
3.164AspArg: 3.164 ± 0.049
2.905AspSer: 2.905 ± 0.044
2.429AspThr: 2.429 ± 0.044
3.03AspVal: 3.03 ± 0.053
0.834AspTrp: 0.834 ± 0.024
1.814AspTyr: 1.814 ± 0.042
0.0AspXaa: 0.0 ± 0.0
Glu
5.417GluAla: 5.417 ± 0.06
0.488GluCys: 0.488 ± 0.017
2.821GluAsp: 2.821 ± 0.051
4.265GluGlu: 4.265 ± 0.073
2.497GluPhe: 2.497 ± 0.043
3.166GluGly: 3.166 ± 0.052
1.004GluHis: 1.004 ± 0.029
5.067GluIle: 5.067 ± 0.072
3.66GluLys: 3.66 ± 0.059
7.172GluLeu: 7.172 ± 0.082
1.318GluMet: 1.318 ± 0.03
2.749GluAsn: 2.749 ± 0.052
2.415GluPro: 2.415 ± 0.047
4.066GluGln: 4.066 ± 0.062
3.461GluArg: 3.461 ± 0.051
3.513GluSer: 3.513 ± 0.051
3.545GluThr: 3.545 ± 0.051
4.486GluVal: 4.486 ± 0.065
0.808GluTrp: 0.808 ± 0.021
1.893GluTyr: 1.893 ± 0.04
0.0GluXaa: 0.0 ± 0.0
Phe
2.781PheAla: 2.781 ± 0.047
0.546PheCys: 0.546 ± 0.022
2.259PheAsp: 2.259 ± 0.048
2.251PheGlu: 2.251 ± 0.044
1.583PhePhe: 1.583 ± 0.04
2.572PheGly: 2.572 ± 0.052
0.675PheHis: 0.675 ± 0.021
2.413PheIle: 2.413 ± 0.043
1.834PheLys: 1.834 ± 0.034
3.91PheLeu: 3.91 ± 0.059
0.655PheMet: 0.655 ± 0.023
1.923PheAsn: 1.923 ± 0.039
1.71PhePro: 1.71 ± 0.034
1.747PheGln: 1.747 ± 0.032
1.685PheArg: 1.685 ± 0.033
2.85PheSer: 2.85 ± 0.055
2.178PheThr: 2.178 ± 0.036
2.312PheVal: 2.312 ± 0.039
0.684PheTrp: 0.684 ± 0.024
1.365PheTyr: 1.365 ± 0.035
0.0PheXaa: 0.0 ± 0.0
Gly
4.631GlyAla: 4.631 ± 0.072
0.769GlyCys: 0.769 ± 0.024
3.078GlyAsp: 3.078 ± 0.05
3.938GlyGlu: 3.938 ± 0.051
2.688GlyPhe: 2.688 ± 0.045
4.41GlyGly: 4.41 ± 0.073
1.174GlyHis: 1.174 ± 0.04
4.972GlyIle: 4.972 ± 0.059
4.246GlyLys: 4.246 ± 0.058
6.561GlyLeu: 6.561 ± 0.079
1.48GlyMet: 1.48 ± 0.038
2.897GlyAsn: 2.897 ± 0.051
0.91GlyPro: 0.91 ± 0.028
2.794GlyGln: 2.794 ± 0.053
3.135GlyArg: 3.135 ± 0.051
4.102GlySer: 4.102 ± 0.063
3.611GlyThr: 3.611 ± 0.064
4.641GlyVal: 4.641 ± 0.069
1.139GlyTrp: 1.139 ± 0.03
2.328GlyTyr: 2.328 ± 0.045
0.0GlyXaa: 0.0 ± 0.0
His
1.019HisAla: 1.019 ± 0.028
0.256HisCys: 0.256 ± 0.013
0.716HisAsp: 0.716 ± 0.024
0.884HisGlu: 0.884 ± 0.026
0.729HisPhe: 0.729 ± 0.024
1.047HisGly: 1.047 ± 0.028
0.592HisHis: 0.592 ± 0.027
1.175HisIle: 1.175 ± 0.028
0.814HisLys: 0.814 ± 0.023
2.216HisLeu: 2.216 ± 0.046
0.195HisMet: 0.195 ± 0.01
0.782HisAsn: 0.782 ± 0.029
1.306HisPro: 1.306 ± 0.03
1.231HisGln: 1.231 ± 0.034
1.091HisArg: 1.091 ± 0.031
1.187HisSer: 1.187 ± 0.034
0.855HisThr: 0.855 ± 0.026
0.775HisVal: 0.775 ± 0.023
0.322HisTrp: 0.322 ± 0.013
0.643HisTyr: 0.643 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
7.187IleAla: 7.187 ± 0.087
0.764IleCys: 0.764 ± 0.024
3.645IleAsp: 3.645 ± 0.05
4.568IleGlu: 4.568 ± 0.058
2.451IlePhe: 2.451 ± 0.046
4.226IleGly: 4.226 ± 0.062
1.218IleHis: 1.218 ± 0.031
4.016IleIle: 4.016 ± 0.068
3.706IleLys: 3.706 ± 0.059
6.59IleLeu: 6.59 ± 0.081
0.853IleMet: 0.853 ± 0.027
3.537IleAsn: 3.537 ± 0.057
3.618IlePro: 3.618 ± 0.053
2.975IleGln: 2.975 ± 0.055
3.068IleArg: 3.068 ± 0.05
4.814IleSer: 4.814 ± 0.065
3.899IleThr: 3.899 ± 0.055
4.245IleVal: 4.245 ± 0.059
0.861IleTrp: 0.861 ± 0.026
1.997IleTyr: 1.997 ± 0.042
0.0IleXaa: 0.0 ± 0.0
Lys
4.247LysAla: 4.247 ± 0.065
0.362LysCys: 0.362 ± 0.018
2.342LysAsp: 2.342 ± 0.037
3.101LysGlu: 3.101 ± 0.058
1.93LysPhe: 1.93 ± 0.039
2.772LysGly: 2.772 ± 0.05
0.862LysHis: 0.862 ± 0.027
3.779LysIle: 3.779 ± 0.057
2.63LysLys: 2.63 ± 0.051
6.02LysLeu: 6.02 ± 0.077
0.994LysMet: 0.994 ± 0.022
2.353LysAsn: 2.353 ± 0.044
2.676LysPro: 2.676 ± 0.048
3.049LysGln: 3.049 ± 0.051
2.509LysArg: 2.509 ± 0.042
3.378LysSer: 3.378 ± 0.057
3.105LysThr: 3.105 ± 0.056
3.461LysVal: 3.461 ± 0.048
0.538LysTrp: 0.538 ± 0.022
1.481LysTyr: 1.481 ± 0.038
0.0LysXaa: 0.0 ± 0.0
Leu
9.417LeuAla: 9.417 ± 0.078
0.965LeuCys: 0.965 ± 0.028
5.409LeuAsp: 5.409 ± 0.064
7.41LeuGlu: 7.41 ± 0.076
3.635LeuPhe: 3.635 ± 0.059
7.303LeuGly: 7.303 ± 0.08
1.88LeuHis: 1.88 ± 0.043
7.109LeuIle: 7.109 ± 0.087
5.943LeuLys: 5.943 ± 0.08
11.357LeuLeu: 11.357 ± 0.128
2.037LeuMet: 2.037 ± 0.04
4.959LeuAsn: 4.959 ± 0.052
5.815LeuPro: 5.815 ± 0.091
5.627LeuGln: 5.627 ± 0.069
5.463LeuArg: 5.463 ± 0.06
7.545LeuSer: 7.545 ± 0.083
6.511LeuThr: 6.511 ± 0.084
7.03LeuVal: 7.03 ± 0.075
1.38LeuTrp: 1.38 ± 0.037
2.629LeuTyr: 2.629 ± 0.043
0.0LeuXaa: 0.0 ± 0.0
Met
1.639MetAla: 1.639 ± 0.036
0.105MetCys: 0.105 ± 0.007
0.784MetAsp: 0.784 ± 0.023
0.977MetGlu: 0.977 ± 0.032
0.552MetPhe: 0.552 ± 0.022
1.306MetGly: 1.306 ± 0.032
0.253MetHis: 0.253 ± 0.012
1.057MetIle: 1.057 ± 0.029
0.931MetLys: 0.931 ± 0.025
2.008MetLeu: 2.008 ± 0.038
0.45MetMet: 0.45 ± 0.019
0.842MetAsn: 0.842 ± 0.029
0.997MetPro: 0.997 ± 0.025
0.973MetGln: 0.973 ± 0.022
0.991MetArg: 0.991 ± 0.027
1.288MetSer: 1.288 ± 0.034
1.17MetThr: 1.17 ± 0.027
1.247MetVal: 1.247 ± 0.026
0.158MetTrp: 0.158 ± 0.011
0.356MetTyr: 0.356 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
3.076AsnAla: 3.076 ± 0.05
0.53AsnCys: 0.53 ± 0.02
1.767AsnAsp: 1.767 ± 0.034
2.066AsnGlu: 2.066 ± 0.038
2.068AsnPhe: 2.068 ± 0.046
2.588AsnGly: 2.588 ± 0.046
0.962AsnHis: 0.962 ± 0.03
2.911AsnIle: 2.911 ± 0.052
2.105AsnLys: 2.105 ± 0.044
5.847AsnLeu: 5.847 ± 0.094
0.696AsnMet: 0.696 ± 0.023
2.433AsnAsn: 2.433 ± 0.053
2.863AsnPro: 2.863 ± 0.046
3.155AsnGln: 3.155 ± 0.055
2.358AsnArg: 2.358 ± 0.038
3.5AsnSer: 3.5 ± 0.052
2.417AsnThr: 2.417 ± 0.049
2.302AsnVal: 2.302 ± 0.039
0.782AsnTrp: 0.782 ± 0.026
1.613AsnTyr: 1.613 ± 0.037
0.0AsnXaa: 0.0 ± 0.0
Pro
3.343ProAla: 3.343 ± 0.053
0.359ProCys: 0.359 ± 0.017
2.959ProAsp: 2.959 ± 0.052
3.88ProGlu: 3.88 ± 0.051
1.567ProPhe: 1.567 ± 0.034
2.744ProGly: 2.744 ± 0.056
0.84ProHis: 0.84 ± 0.024
3.003ProIle: 3.003 ± 0.047
2.32ProLys: 2.32 ± 0.044
4.657ProLeu: 4.657 ± 0.056
0.711ProMet: 0.711 ± 0.02
2.334ProAsn: 2.334 ± 0.049
2.238ProPro: 2.238 ± 0.052
2.656ProGln: 2.656 ± 0.042
1.697ProArg: 1.697 ± 0.035
3.04ProSer: 3.04 ± 0.05
2.888ProThr: 2.888 ± 0.052
3.39ProVal: 3.39 ± 0.054
0.544ProTrp: 0.544 ± 0.021
1.301ProTyr: 1.301 ± 0.027
0.0ProXaa: 0.0 ± 0.0
Gln
4.834GlnAla: 4.834 ± 0.075
0.362GlnCys: 0.362 ± 0.016
2.115GlnAsp: 2.115 ± 0.035
3.523GlnGlu: 3.523 ± 0.062
1.839GlnPhe: 1.839 ± 0.039
3.295GlnGly: 3.295 ± 0.049
0.959GlnHis: 0.959 ± 0.025
3.792GlnIle: 3.792 ± 0.053
2.841GlnLys: 2.841 ± 0.049
6.455GlnLeu: 6.455 ± 0.099
1.094GlnMet: 1.094 ± 0.03
2.141GlnAsn: 2.141 ± 0.042
2.895GlnPro: 2.895 ± 0.052
4.271GlnGln: 4.271 ± 0.08
2.964GlnArg: 2.964 ± 0.051
3.02GlnSer: 3.02 ± 0.045
3.0GlnThr: 3.0 ± 0.058
4.07GlnVal: 4.07 ± 0.066
0.679GlnTrp: 0.679 ± 0.024
1.311GlnTyr: 1.311 ± 0.029
0.0GlnXaa: 0.0 ± 0.0
Arg
3.143ArgAla: 3.143 ± 0.055
0.534ArgCys: 0.534 ± 0.018
2.492ArgAsp: 2.492 ± 0.046
3.206ArgGlu: 3.206 ± 0.049
2.081ArgPhe: 2.081 ± 0.042
2.857ArgGly: 2.857 ± 0.059
0.972ArgHis: 0.972 ± 0.026
3.334ArgIle: 3.334 ± 0.046
2.403ArgLys: 2.403 ± 0.05
5.763ArgLeu: 5.763 ± 0.073
1.037ArgMet: 1.037 ± 0.023
2.167ArgAsn: 2.167 ± 0.039
2.044ArgPro: 2.044 ± 0.04
3.175ArgGln: 3.175 ± 0.052
2.994ArgArg: 2.994 ± 0.054
3.418ArgSer: 3.418 ± 0.054
2.573ArgThr: 2.573 ± 0.046
3.345ArgVal: 3.345 ± 0.055
0.777ArgTrp: 0.777 ± 0.026
1.885ArgTyr: 1.885 ± 0.036
0.0ArgXaa: 0.0 ± 0.0
Ser
4.74SerAla: 4.74 ± 0.052
0.699SerCys: 0.699 ± 0.023
3.365SerAsp: 3.365 ± 0.049
4.028SerGlu: 4.028 ± 0.053
2.452SerPhe: 2.452 ± 0.041
4.496SerGly: 4.496 ± 0.061
1.232SerHis: 1.232 ± 0.03
3.848SerIle: 3.848 ± 0.05
3.151SerLys: 3.151 ± 0.05
7.427SerLeu: 7.427 ± 0.07
1.151SerMet: 1.151 ± 0.031
3.204SerAsn: 3.204 ± 0.051
3.444SerPro: 3.444 ± 0.054
3.752SerGln: 3.752 ± 0.061
3.185SerArg: 3.185 ± 0.045
4.758SerSer: 4.758 ± 0.069
3.648SerThr: 3.648 ± 0.055
4.154SerVal: 4.154 ± 0.061
0.966SerTrp: 0.966 ± 0.031
1.878SerTyr: 1.878 ± 0.039
0.0SerXaa: 0.0 ± 0.0
Thr
4.805ThrAla: 4.805 ± 0.063
0.464ThrCys: 0.464 ± 0.016
2.784ThrAsp: 2.784 ± 0.05
3.5ThrGlu: 3.5 ± 0.056
2.0ThrPhe: 2.0 ± 0.04
4.185ThrGly: 4.185 ± 0.069
0.972ThrHis: 0.972 ± 0.024
3.723ThrIle: 3.723 ± 0.056
2.508ThrLys: 2.508 ± 0.049
6.112ThrLeu: 6.112 ± 0.085
0.779ThrMet: 0.779 ± 0.029
2.597ThrAsn: 2.597 ± 0.051
3.507ThrPro: 3.507 ± 0.055
2.933ThrGln: 2.933 ± 0.057
2.391ThrArg: 2.391 ± 0.045
3.521ThrSer: 3.521 ± 0.057
3.585ThrThr: 3.585 ± 0.063
3.907ThrVal: 3.907 ± 0.055
0.701ThrTrp: 0.701 ± 0.026
1.567ThrTyr: 1.567 ± 0.031
0.0ThrXaa: 0.0 ± 0.0
Val
5.853ValAla: 5.853 ± 0.082
0.675ValCys: 0.675 ± 0.021
3.462ValAsp: 3.462 ± 0.06
4.635ValGlu: 4.635 ± 0.051
2.416ValPhe: 2.416 ± 0.038
4.373ValGly: 4.373 ± 0.078
0.993ValHis: 0.993 ± 0.028
4.509ValIle: 4.509 ± 0.053
3.493ValLys: 3.493 ± 0.051
6.614ValLeu: 6.614 ± 0.073
1.382ValMet: 1.382 ± 0.031
3.032ValAsn: 3.032 ± 0.045
2.783ValPro: 2.783 ± 0.048
2.865ValGln: 2.865 ± 0.049
3.206ValArg: 3.206 ± 0.046
4.297ValSer: 4.297 ± 0.054
3.826ValThr: 3.826 ± 0.058
4.892ValVal: 4.892 ± 0.073
0.839ValTrp: 0.839 ± 0.029
1.868ValTyr: 1.868 ± 0.037
0.0ValXaa: 0.0 ± 0.0
Trp
0.922TrpAla: 0.922 ± 0.029
0.139TrpCys: 0.139 ± 0.01
0.654TrpAsp: 0.654 ± 0.026
0.896TrpGlu: 0.896 ± 0.026
0.552TrpPhe: 0.552 ± 0.019
0.941TrpGly: 0.941 ± 0.026
0.317TrpHis: 0.317 ± 0.016
0.817TrpIle: 0.817 ± 0.027
0.707TrpLys: 0.707 ± 0.028
1.833TrpLeu: 1.833 ± 0.038
0.309TrpMet: 0.309 ± 0.015
0.681TrpAsn: 0.681 ± 0.027
0.169TrpPro: 0.169 ± 0.011
1.155TrpGln: 1.155 ± 0.03
0.808TrpArg: 0.808 ± 0.024
0.9TrpSer: 0.9 ± 0.028
0.563TrpThr: 0.563 ± 0.02
0.951TrpVal: 0.951 ± 0.027
0.244TrpTrp: 0.244 ± 0.015
0.396TrpTyr: 0.396 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.058TyrAla: 2.058 ± 0.039
0.411TyrCys: 0.411 ± 0.017
1.388TyrAsp: 1.388 ± 0.032
1.699TyrGlu: 1.699 ± 0.038
1.362TyrPhe: 1.362 ± 0.032
1.932TyrGly: 1.932 ± 0.036
0.633TyrHis: 0.633 ± 0.021
1.794TyrIle: 1.794 ± 0.036
1.413TyrLys: 1.413 ± 0.035
3.518TyrLeu: 3.518 ± 0.057
0.433TyrMet: 0.433 ± 0.017
1.302TyrAsn: 1.302 ± 0.032
1.54TyrPro: 1.54 ± 0.036
2.111TyrGln: 2.111 ± 0.045
1.904TyrArg: 1.904 ± 0.037
1.926TyrSer: 1.926 ± 0.039
1.477TyrThr: 1.477 ± 0.032
1.538TyrVal: 1.538 ± 0.035
0.549TyrTrp: 0.549 ± 0.018
1.068TyrTyr: 1.068 ± 0.033
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 4697 proteins (1497176 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