Amino acid dipepetide frequency for SAR86 cluster bacterium SAR86E

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
5.767AlaAla: 5.767 ± 0.152
0.807AlaCys: 0.807 ± 0.041
3.795AlaAsp: 3.795 ± 0.108
4.49AlaGlu: 4.49 ± 0.113
3.142AlaPhe: 3.142 ± 0.077
5.24AlaGly: 5.24 ± 0.126
1.239AlaHis: 1.239 ± 0.057
5.745AlaIle: 5.745 ± 0.12
4.802AlaLys: 4.802 ± 0.12
7.183AlaLeu: 7.183 ± 0.134
1.977AlaMet: 1.977 ± 0.075
3.298AlaAsn: 3.298 ± 0.082
2.402AlaPro: 2.402 ± 0.069
2.391AlaGln: 2.391 ± 0.069
2.635AlaArg: 2.635 ± 0.078
5.24AlaSer: 5.24 ± 0.132
3.381AlaThr: 3.381 ± 0.085
4.006AlaVal: 4.006 ± 0.109
0.776AlaTrp: 0.776 ± 0.048
2.065AlaTyr: 2.065 ± 0.078
0.0AlaXaa: 0.0 ± 0.0
Cys
0.66CysAla: 0.66 ± 0.041
0.104CysCys: 0.104 ± 0.016
0.615CysAsp: 0.615 ± 0.043
0.489CysGlu: 0.489 ± 0.033
0.4CysPhe: 0.4 ± 0.031
0.803CysGly: 0.803 ± 0.043
0.24CysHis: 0.24 ± 0.021
0.801CysIle: 0.801 ± 0.047
0.645CysLys: 0.645 ± 0.044
0.95CysLeu: 0.95 ± 0.057
0.172CysMet: 0.172 ± 0.018
0.459CysAsn: 0.459 ± 0.035
0.38CysPro: 0.38 ± 0.033
0.308CysGln: 0.308 ± 0.027
0.278CysArg: 0.278 ± 0.027
0.832CysSer: 0.832 ± 0.045
0.375CysThr: 0.375 ± 0.035
0.586CysVal: 0.586 ± 0.037
0.111CysTrp: 0.111 ± 0.015
0.305CysTyr: 0.305 ± 0.027
0.0CysXaa: 0.0 ± 0.0
Asp
3.874AspAla: 3.874 ± 0.101
0.588AspCys: 0.588 ± 0.039
3.069AspAsp: 3.069 ± 0.088
4.449AspGlu: 4.449 ± 0.119
3.013AspPhe: 3.013 ± 0.085
3.949AspGly: 3.949 ± 0.126
1.305AspHis: 1.305 ± 0.055
4.7AspIle: 4.7 ± 0.109
3.203AspLys: 3.203 ± 0.091
6.67AspLeu: 6.67 ± 0.141
1.3AspMet: 1.3 ± 0.053
2.377AspAsn: 2.377 ± 0.074
2.402AspPro: 2.402 ± 0.071
2.37AspGln: 2.37 ± 0.076
2.128AspArg: 2.128 ± 0.067
4.08AspSer: 4.08 ± 0.1
2.361AspThr: 2.361 ± 0.088
3.203AspVal: 3.203 ± 0.082
0.783AspTrp: 0.783 ± 0.048
2.029AspTyr: 2.029 ± 0.08
0.0AspXaa: 0.0 ± 0.0
Glu
4.449GluAla: 4.449 ± 0.113
0.55GluCys: 0.55 ± 0.032
3.616GluAsp: 3.616 ± 0.103
4.569GluGlu: 4.569 ± 0.129
2.868GluPhe: 2.868 ± 0.082
3.709GluGly: 3.709 ± 0.095
1.181GluHis: 1.181 ± 0.065
6.213GluIle: 6.213 ± 0.122
4.589GluLys: 4.589 ± 0.125
6.665GluLeu: 6.665 ± 0.141
1.719GluMet: 1.719 ± 0.057
3.8GluAsn: 3.8 ± 0.095
1.864GluPro: 1.864 ± 0.058
2.038GluGln: 2.038 ± 0.073
2.513GluArg: 2.513 ± 0.075
4.858GluSer: 4.858 ± 0.102
3.112GluThr: 3.112 ± 0.081
4.243GluVal: 4.243 ± 0.108
0.712GluTrp: 0.712 ± 0.041
1.956GluTyr: 1.956 ± 0.068
0.0GluXaa: 0.0 ± 0.0
Phe
3.126PheAla: 3.126 ± 0.089
0.55PheCys: 0.55 ± 0.035
3.121PheAsp: 3.121 ± 0.094
2.845PheGlu: 2.845 ± 0.086
2.775PhePhe: 2.775 ± 0.092
3.788PheGly: 3.788 ± 0.096
0.921PheHis: 0.921 ± 0.04
3.831PheIle: 3.831 ± 0.098
3.194PheLys: 3.194 ± 0.084
5.064PheLeu: 5.064 ± 0.133
1.133PheMet: 1.133 ± 0.049
2.845PheAsn: 2.845 ± 0.082
1.685PhePro: 1.685 ± 0.064
1.64PheGln: 1.64 ± 0.063
1.481PheArg: 1.481 ± 0.052
4.155PheSer: 4.155 ± 0.12
2.237PheThr: 2.237 ± 0.077
2.481PheVal: 2.481 ± 0.077
0.561PheTrp: 0.561 ± 0.038
1.748PheTyr: 1.748 ± 0.071
0.0PheXaa: 0.0 ± 0.0
Gly
5.032GlyAla: 5.032 ± 0.126
0.821GlyCys: 0.821 ± 0.045
3.603GlyAsp: 3.603 ± 0.103
3.684GlyGlu: 3.684 ± 0.098
3.745GlyPhe: 3.745 ± 0.095
5.329GlyGly: 5.329 ± 0.117
1.443GlyHis: 1.443 ± 0.055
5.713GlyIle: 5.713 ± 0.126
4.347GlyLys: 4.347 ± 0.121
6.706GlyLeu: 6.706 ± 0.123
1.963GlyMet: 1.963 ± 0.079
2.71GlyAsn: 2.71 ± 0.094
2.196GlyPro: 2.196 ± 0.077
2.074GlyGln: 2.074 ± 0.065
2.386GlyArg: 2.386 ± 0.075
5.358GlySer: 5.358 ± 0.126
3.472GlyThr: 3.472 ± 0.095
4.505GlyVal: 4.505 ± 0.113
0.939GlyTrp: 0.939 ± 0.046
2.434GlyTyr: 2.434 ± 0.08
0.0GlyXaa: 0.0 ± 0.0
His
1.35HisAla: 1.35 ± 0.058
0.244HisCys: 0.244 ± 0.024
1.029HisAsp: 1.029 ± 0.055
1.3HisGlu: 1.3 ± 0.068
0.835HisPhe: 0.835 ± 0.044
1.52HisGly: 1.52 ± 0.057
0.507HisHis: 0.507 ± 0.041
1.341HisIle: 1.341 ± 0.058
1.07HisLys: 1.07 ± 0.046
1.909HisLeu: 1.909 ± 0.071
0.416HisMet: 0.416 ± 0.032
0.794HisAsn: 0.794 ± 0.043
1.149HisPro: 1.149 ± 0.05
0.866HisGln: 0.866 ± 0.042
0.796HisArg: 0.796 ± 0.042
1.377HisSer: 1.377 ± 0.057
0.835HisThr: 0.835 ± 0.041
0.963HisVal: 0.963 ± 0.045
0.222HisTrp: 0.222 ± 0.024
0.645HisTyr: 0.645 ± 0.035
0.0HisXaa: 0.0 ± 0.0
Ile
6.292IleAla: 6.292 ± 0.11
0.891IleCys: 0.891 ± 0.048
5.333IleAsp: 5.333 ± 0.114
5.826IleGlu: 5.826 ± 0.101
4.309IlePhe: 4.309 ± 0.127
5.507IleGly: 5.507 ± 0.126
1.479IleHis: 1.479 ± 0.058
5.851IleIle: 5.851 ± 0.142
5.957IleLys: 5.957 ± 0.152
7.344IleLeu: 7.344 ± 0.159
1.574IleMet: 1.574 ± 0.06
5.139IleAsn: 5.139 ± 0.123
3.42IlePro: 3.42 ± 0.105
2.777IleGln: 2.777 ± 0.09
2.63IleArg: 2.63 ± 0.07
6.812IleSer: 6.812 ± 0.16
3.926IleThr: 3.926 ± 0.08
4.257IleVal: 4.257 ± 0.104
0.663IleTrp: 0.663 ± 0.039
2.456IleTyr: 2.456 ± 0.072
0.0IleXaa: 0.0 ± 0.0
Lys
4.263LysAla: 4.263 ± 0.11
0.452LysCys: 0.452 ± 0.03
4.248LysAsp: 4.248 ± 0.103
4.684LysGlu: 4.684 ± 0.116
3.01LysPhe: 3.01 ± 0.081
3.417LysGly: 3.417 ± 0.101
1.144LysHis: 1.144 ± 0.052
6.242LysIle: 6.242 ± 0.14
5.926LysLys: 5.926 ± 0.154
6.281LysLeu: 6.281 ± 0.136
1.576LysMet: 1.576 ± 0.058
5.078LysAsn: 5.078 ± 0.124
2.429LysPro: 2.429 ± 0.079
2.033LysGln: 2.033 ± 0.079
2.49LysArg: 2.49 ± 0.076
4.738LysSer: 4.738 ± 0.099
3.463LysThr: 3.463 ± 0.085
3.969LysVal: 3.969 ± 0.104
0.545LysTrp: 0.545 ± 0.039
2.128LysTyr: 2.128 ± 0.078
0.0LysXaa: 0.0 ± 0.0
Leu
6.98LeuAla: 6.98 ± 0.138
0.837LeuCys: 0.837 ± 0.042
5.919LeuAsp: 5.919 ± 0.117
6.638LeuGlu: 6.638 ± 0.128
4.367LeuPhe: 4.367 ± 0.126
6.876LeuGly: 6.876 ± 0.139
1.717LeuHis: 1.717 ± 0.057
8.251LeuIle: 8.251 ± 0.178
7.054LeuLys: 7.054 ± 0.175
8.506LeuLeu: 8.506 ± 0.179
2.547LeuMet: 2.547 ± 0.08
5.779LeuAsn: 5.779 ± 0.134
3.886LeuPro: 3.886 ± 0.105
3.101LeuGln: 3.101 ± 0.085
3.612LeuArg: 3.612 ± 0.1
8.296LeuSer: 8.296 ± 0.164
4.682LeuThr: 4.682 ± 0.109
5.695LeuVal: 5.695 ± 0.111
0.875LeuTrp: 0.875 ± 0.045
2.33LeuTyr: 2.33 ± 0.074
0.0LeuXaa: 0.0 ± 0.0
Met
1.827MetAla: 1.827 ± 0.066
0.197MetCys: 0.197 ± 0.022
1.296MetAsp: 1.296 ± 0.051
1.332MetGlu: 1.332 ± 0.06
0.975MetPhe: 0.975 ± 0.05
1.818MetGly: 1.818 ± 0.072
0.581MetHis: 0.581 ± 0.039
1.848MetIle: 1.848 ± 0.059
1.766MetLys: 1.766 ± 0.066
2.354MetLeu: 2.354 ± 0.084
0.617MetMet: 0.617 ± 0.041
1.479MetAsn: 1.479 ± 0.059
1.108MetPro: 1.108 ± 0.05
0.986MetGln: 0.986 ± 0.051
0.936MetArg: 0.936 ± 0.046
1.932MetSer: 1.932 ± 0.057
1.289MetThr: 1.289 ± 0.056
1.416MetVal: 1.416 ± 0.061
0.213MetTrp: 0.213 ± 0.021
0.522MetTyr: 0.522 ± 0.036
0.0MetXaa: 0.0 ± 0.0
Asn
3.594AsnAla: 3.594 ± 0.077
0.502AsnCys: 0.502 ± 0.031
2.936AsnAsp: 2.936 ± 0.094
3.537AsnGlu: 3.537 ± 0.101
2.976AsnPhe: 2.976 ± 0.093
3.171AsnGly: 3.171 ± 0.083
0.941AsnHis: 0.941 ± 0.043
4.883AsnIle: 4.883 ± 0.114
3.682AsnLys: 3.682 ± 0.091
6.098AsnLeu: 6.098 ± 0.128
1.054AsnMet: 1.054 ± 0.043
3.121AsnAsn: 3.121 ± 0.088
2.662AsnPro: 2.662 ± 0.077
2.226AsnGln: 2.226 ± 0.076
1.773AsnArg: 1.773 ± 0.065
3.865AsnSer: 3.865 ± 0.096
2.354AsnThr: 2.354 ± 0.077
2.603AsnVal: 2.603 ± 0.088
0.692AsnTrp: 0.692 ± 0.039
1.841AsnTyr: 1.841 ± 0.075
0.0AsnXaa: 0.0 ± 0.0
Pro
2.513ProAla: 2.513 ± 0.073
0.323ProCys: 0.323 ± 0.029
2.259ProAsp: 2.259 ± 0.087
3.026ProGlu: 3.026 ± 0.09
1.846ProPhe: 1.846 ± 0.064
2.773ProGly: 2.773 ± 0.096
0.762ProHis: 0.762 ± 0.039
3.128ProIle: 3.128 ± 0.085
2.445ProLys: 2.445 ± 0.079
3.569ProLeu: 3.569 ± 0.093
1.0ProMet: 1.0 ± 0.049
2.088ProAsn: 2.088 ± 0.071
1.038ProPro: 1.038 ± 0.059
1.174ProGln: 1.174 ± 0.051
1.169ProArg: 1.169 ± 0.05
2.857ProSer: 2.857 ± 0.075
1.911ProThr: 1.911 ± 0.07
2.293ProVal: 2.293 ± 0.075
0.398ProTrp: 0.398 ± 0.034
1.269ProTyr: 1.269 ± 0.05
0.0ProXaa: 0.0 ± 0.0
Gln
2.653GlnAla: 2.653 ± 0.081
0.274GlnCys: 0.274 ± 0.025
1.97GlnAsp: 1.97 ± 0.065
2.447GlnGlu: 2.447 ± 0.065
1.488GlnPhe: 1.488 ± 0.061
2.151GlnGly: 2.151 ± 0.072
0.69GlnHis: 0.69 ± 0.038
2.775GlnIle: 2.775 ± 0.066
2.642GlnLys: 2.642 ± 0.084
3.031GlnLeu: 3.031 ± 0.09
0.807GlnMet: 0.807 ± 0.045
1.968GlnAsn: 1.968 ± 0.072
1.081GlnPro: 1.081 ± 0.054
1.101GlnGln: 1.101 ± 0.052
1.332GlnArg: 1.332 ± 0.054
2.673GlnSer: 2.673 ± 0.096
1.771GlnThr: 1.771 ± 0.063
1.981GlnVal: 1.981 ± 0.058
0.348GlnTrp: 0.348 ± 0.03
0.993GlnTyr: 0.993 ± 0.052
0.0GlnXaa: 0.0 ± 0.0
Arg
2.436ArgAla: 2.436 ± 0.072
0.285ArgCys: 0.285 ± 0.024
2.158ArgAsp: 2.158 ± 0.072
2.379ArgGlu: 2.379 ± 0.075
1.805ArgPhe: 1.805 ± 0.066
2.327ArgGly: 2.327 ± 0.075
0.728ArgHis: 0.728 ± 0.039
2.807ArgIle: 2.807 ± 0.078
2.23ArgLys: 2.23 ± 0.072
3.313ArgLeu: 3.313 ± 0.098
1.018ArgMet: 1.018 ± 0.043
1.821ArgAsn: 1.821 ± 0.072
1.368ArgPro: 1.368 ± 0.046
1.192ArgGln: 1.192 ± 0.052
1.502ArgArg: 1.502 ± 0.065
2.732ArgSer: 2.732 ± 0.08
1.717ArgThr: 1.717 ± 0.071
2.443ArgVal: 2.443 ± 0.069
0.446ArgTrp: 0.446 ± 0.029
1.246ArgTyr: 1.246 ± 0.054
0.0ArgXaa: 0.0 ± 0.0
Ser
5.105SerAla: 5.105 ± 0.111
0.681SerCys: 0.681 ± 0.043
4.309SerAsp: 4.309 ± 0.116
4.548SerGlu: 4.548 ± 0.097
4.087SerPhe: 4.087 ± 0.089
5.335SerGly: 5.335 ± 0.121
1.547SerHis: 1.547 ± 0.057
6.792SerIle: 6.792 ± 0.156
5.392SerLys: 5.392 ± 0.13
7.735SerLeu: 7.735 ± 0.145
2.155SerMet: 2.155 ± 0.062
4.229SerAsn: 4.229 ± 0.119
2.716SerPro: 2.716 ± 0.089
2.832SerGln: 2.832 ± 0.077
2.741SerArg: 2.741 ± 0.082
6.432SerSer: 6.432 ± 0.157
3.574SerThr: 3.574 ± 0.108
4.302SerVal: 4.302 ± 0.115
0.857SerTrp: 0.857 ± 0.051
2.472SerTyr: 2.472 ± 0.078
0.0SerXaa: 0.0 ± 0.0
Thr
3.39ThrAla: 3.39 ± 0.093
0.4ThrCys: 0.4 ± 0.031
2.694ThrAsp: 2.694 ± 0.093
2.576ThrGlu: 2.576 ± 0.08
2.522ThrPhe: 2.522 ± 0.078
3.585ThrGly: 3.585 ± 0.099
1.002ThrHis: 1.002 ± 0.045
3.671ThrIle: 3.671 ± 0.097
3.042ThrLys: 3.042 ± 0.082
4.928ThrLeu: 4.928 ± 0.114
1.0ThrMet: 1.0 ± 0.039
2.662ThrAsn: 2.662 ± 0.079
2.205ThrPro: 2.205 ± 0.069
1.726ThrGln: 1.726 ± 0.066
1.708ThrArg: 1.708 ± 0.07
3.777ThrSer: 3.777 ± 0.097
2.311ThrThr: 2.311 ± 0.09
2.669ThrVal: 2.669 ± 0.071
0.461ThrTrp: 0.461 ± 0.035
1.527ThrTyr: 1.527 ± 0.062
0.0ThrXaa: 0.0 ± 0.0
Val
4.22ValAla: 4.22 ± 0.106
0.579ValCys: 0.579 ± 0.035
3.515ValAsp: 3.515 ± 0.089
3.702ValGlu: 3.702 ± 0.094
2.691ValPhe: 2.691 ± 0.088
4.202ValGly: 4.202 ± 0.111
0.993ValHis: 0.993 ± 0.055
4.992ValIle: 4.992 ± 0.126
3.431ValLys: 3.431 ± 0.086
5.231ValLeu: 5.231 ± 0.107
1.583ValMet: 1.583 ± 0.06
3.013ValAsn: 3.013 ± 0.084
2.271ValPro: 2.271 ± 0.067
1.671ValGln: 1.671 ± 0.059
2.124ValArg: 2.124 ± 0.075
4.406ValSer: 4.406 ± 0.112
3.148ValThr: 3.148 ± 0.094
3.779ValVal: 3.779 ± 0.113
0.599ValTrp: 0.599 ± 0.045
1.475ValTyr: 1.475 ± 0.057
0.0ValXaa: 0.0 ± 0.0
Trp
0.706TrpAla: 0.706 ± 0.043
0.097TrpCys: 0.097 ± 0.014
0.651TrpAsp: 0.651 ± 0.046
0.642TrpGlu: 0.642 ± 0.036
0.498TrpPhe: 0.498 ± 0.034
0.753TrpGly: 0.753 ± 0.048
0.226TrpHis: 0.226 ± 0.025
0.862TrpIle: 0.862 ± 0.045
0.658TrpLys: 0.658 ± 0.039
1.036TrpLeu: 1.036 ± 0.047
0.283TrpMet: 0.283 ± 0.026
0.532TrpAsn: 0.532 ± 0.034
0.346TrpPro: 0.346 ± 0.03
0.398TrpGln: 0.398 ± 0.029
0.448TrpArg: 0.448 ± 0.033
0.896TrpSer: 0.896 ± 0.054
0.545TrpThr: 0.545 ± 0.041
0.649TrpVal: 0.649 ± 0.042
0.176TrpTrp: 0.176 ± 0.022
0.332TrpTyr: 0.332 ± 0.031
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.142TyrAla: 2.142 ± 0.069
0.33TyrCys: 0.33 ± 0.033
1.717TyrAsp: 1.717 ± 0.064
2.06TyrGlu: 2.06 ± 0.064
1.83TyrPhe: 1.83 ± 0.072
2.205TyrGly: 2.205 ± 0.065
0.522TyrHis: 0.522 ± 0.04
1.999TyrIle: 1.999 ± 0.072
2.045TyrLys: 2.045 ± 0.072
3.372TyrLeu: 3.372 ± 0.086
0.597TyrMet: 0.597 ± 0.039
1.323TyrAsn: 1.323 ± 0.062
1.233TyrPro: 1.233 ± 0.051
1.273TyrGln: 1.273 ± 0.057
1.269TyrArg: 1.269 ± 0.052
2.524TyrSer: 2.524 ± 0.077
1.391TyrThr: 1.391 ± 0.058
1.583TyrVal: 1.583 ± 0.065
0.357TyrTrp: 0.357 ± 0.031
0.907TyrTyr: 0.907 ± 0.052
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 1403 proteins (442143 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