Amino acid dipepetide frequency for Desulfobacteraceae bacterium SEEP-SAG9

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
6.242AlaAla: 6.242 ± 0.136
1.005AlaCys: 1.005 ± 0.046
3.837AlaAsp: 3.837 ± 0.094
4.742AlaGlu: 4.742 ± 0.094
3.401AlaPhe: 3.401 ± 0.09
5.889AlaGly: 5.889 ± 0.122
1.518AlaHis: 1.518 ± 0.052
5.845AlaIle: 5.845 ± 0.118
4.468AlaLys: 4.468 ± 0.09
8.223AlaLeu: 8.223 ± 0.147
2.234AlaMet: 2.234 ± 0.068
2.448AlaAsn: 2.448 ± 0.072
2.457AlaPro: 2.457 ± 0.062
2.405AlaGln: 2.405 ± 0.065
4.032AlaArg: 4.032 ± 0.094
4.202AlaSer: 4.202 ± 0.084
3.548AlaThr: 3.548 ± 0.076
5.667AlaVal: 5.667 ± 0.1
0.782AlaTrp: 0.782 ± 0.038
2.337AlaTyr: 2.337 ± 0.063
0.002AlaXaa: 0.002 ± 0.001
Cys
0.749CysAla: 0.749 ± 0.042
0.233CysCys: 0.233 ± 0.024
0.623CysAsp: 0.623 ± 0.032
0.7CysGlu: 0.7 ± 0.038
0.574CysPhe: 0.574 ± 0.035
1.352CysGly: 1.352 ± 0.054
0.411CysHis: 0.411 ± 0.032
0.852CysIle: 0.852 ± 0.041
0.616CysLys: 0.616 ± 0.034
1.207CysLeu: 1.207 ± 0.05
0.309CysMet: 0.309 ± 0.024
0.507CysAsn: 0.507 ± 0.028
0.725CysPro: 0.725 ± 0.045
0.356CysGln: 0.356 ± 0.025
0.778CysArg: 0.778 ± 0.04
0.731CysSer: 0.731 ± 0.037
0.567CysThr: 0.567 ± 0.033
0.727CysVal: 0.727 ± 0.035
0.144CysTrp: 0.144 ± 0.016
0.445CysTyr: 0.445 ± 0.03
0.0CysXaa: 0.0 ± 0.0
Asp
3.901AspAla: 3.901 ± 0.088
0.647AspCys: 0.647 ± 0.034
2.717AspAsp: 2.717 ± 0.073
3.443AspGlu: 3.443 ± 0.081
2.712AspPhe: 2.712 ± 0.082
3.533AspGly: 3.533 ± 0.086
1.151AspHis: 1.151 ± 0.05
4.55AspIle: 4.55 ± 0.095
2.974AspLys: 2.974 ± 0.077
5.949AspLeu: 5.949 ± 0.115
1.283AspMet: 1.283 ± 0.049
1.885AspAsn: 1.885 ± 0.062
2.746AspPro: 2.746 ± 0.07
1.876AspGln: 1.876 ± 0.064
3.09AspArg: 3.09 ± 0.074
2.641AspSer: 2.641 ± 0.064
2.579AspThr: 2.579 ± 0.069
3.623AspVal: 3.623 ± 0.079
0.702AspTrp: 0.702 ± 0.038
1.919AspTyr: 1.919 ± 0.058
0.0AspXaa: 0.0 ± 0.0
Glu
5.295GluAla: 5.295 ± 0.123
0.593GluCys: 0.593 ± 0.035
3.441GluAsp: 3.441 ± 0.084
4.444GluGlu: 4.444 ± 0.135
2.417GluPhe: 2.417 ± 0.068
4.068GluGly: 4.068 ± 0.1
1.198GluHis: 1.198 ± 0.049
5.435GluIle: 5.435 ± 0.11
5.891GluLys: 5.891 ± 0.127
5.873GluLeu: 5.873 ± 0.111
1.954GluMet: 1.954 ± 0.057
3.144GluAsn: 3.144 ± 0.069
2.054GluPro: 2.054 ± 0.067
1.998GluGln: 1.998 ± 0.062
3.59GluArg: 3.59 ± 0.089
3.221GluSer: 3.221 ± 0.072
3.644GluThr: 3.644 ± 0.085
3.875GluVal: 3.875 ± 0.092
0.653GluTrp: 0.653 ± 0.038
1.818GluTyr: 1.818 ± 0.059
0.0GluXaa: 0.0 ± 0.0
Phe
2.899PheAla: 2.899 ± 0.076
0.716PheCys: 0.716 ± 0.04
2.797PheAsp: 2.797 ± 0.081
2.814PheGlu: 2.814 ± 0.069
2.561PhePhe: 2.561 ± 0.082
3.237PheGly: 3.237 ± 0.075
0.991PheHis: 0.991 ± 0.046
3.424PheIle: 3.424 ± 0.093
2.683PheLys: 2.683 ± 0.071
4.682PheLeu: 4.682 ± 0.118
1.238PheMet: 1.238 ± 0.048
1.812PheAsn: 1.812 ± 0.06
1.925PhePro: 1.925 ± 0.066
1.392PheGln: 1.392 ± 0.045
2.272PheArg: 2.272 ± 0.061
3.27PheSer: 3.27 ± 0.086
2.343PheThr: 2.343 ± 0.073
2.877PheVal: 2.877 ± 0.076
0.62PheTrp: 0.62 ± 0.033
1.545PheTyr: 1.545 ± 0.057
0.0PheXaa: 0.0 ± 0.0
Gly
5.249GlyAla: 5.249 ± 0.118
1.061GlyCys: 1.061 ± 0.056
3.446GlyAsp: 3.446 ± 0.091
3.953GlyGlu: 3.953 ± 0.078
3.519GlyPhe: 3.519 ± 0.087
4.978GlyGly: 4.978 ± 0.169
1.623GlyHis: 1.623 ± 0.058
6.062GlyIle: 6.062 ± 0.106
5.142GlyLys: 5.142 ± 0.099
7.027GlyLeu: 7.027 ± 0.102
2.159GlyMet: 2.159 ± 0.06
2.732GlyAsn: 2.732 ± 0.081
2.388GlyPro: 2.388 ± 0.068
2.259GlyGln: 2.259 ± 0.055
3.848GlyArg: 3.848 ± 0.09
3.87GlySer: 3.87 ± 0.09
3.79GlyThr: 3.79 ± 0.102
4.824GlyVal: 4.824 ± 0.098
0.992GlyTrp: 0.992 ± 0.05
2.568GlyTyr: 2.568 ± 0.073
0.002GlyXaa: 0.002 ± 0.002
His
1.516HisAla: 1.516 ± 0.053
0.304HisCys: 0.304 ± 0.024
1.083HisAsp: 1.083 ± 0.051
1.141HisGlu: 1.141 ± 0.047
1.058HisPhe: 1.058 ± 0.044
1.447HisGly: 1.447 ± 0.049
0.598HisHis: 0.598 ± 0.035
1.52HisIle: 1.52 ± 0.049
1.1HisLys: 1.1 ± 0.041
2.139HisLeu: 2.139 ± 0.065
0.496HisMet: 0.496 ± 0.034
0.802HisAsn: 0.802 ± 0.036
1.309HisPro: 1.309 ± 0.05
0.763HisGln: 0.763 ± 0.035
1.283HisArg: 1.283 ± 0.047
1.147HisSer: 1.147 ± 0.047
0.947HisThr: 0.947 ± 0.046
1.285HisVal: 1.285 ± 0.051
0.26HisTrp: 0.26 ± 0.022
0.751HisTyr: 0.751 ± 0.047
0.0HisXaa: 0.0 ± 0.0
Ile
6.005IleAla: 6.005 ± 0.108
1.027IleCys: 1.027 ± 0.044
4.506IleAsp: 4.506 ± 0.093
5.197IleGlu: 5.197 ± 0.111
3.61IlePhe: 3.61 ± 0.092
5.344IleGly: 5.344 ± 0.11
1.73IleHis: 1.73 ± 0.057
5.86IleIle: 5.86 ± 0.117
4.848IleLys: 4.848 ± 0.107
7.492IleLeu: 7.492 ± 0.131
1.687IleMet: 1.687 ± 0.057
3.083IleAsn: 3.083 ± 0.086
3.653IlePro: 3.653 ± 0.081
2.539IleGln: 2.539 ± 0.074
4.032IleArg: 4.032 ± 0.085
4.899IleSer: 4.899 ± 0.103
3.942IleThr: 3.942 ± 0.092
4.839IleVal: 4.839 ± 0.102
0.687IleTrp: 0.687 ± 0.033
2.352IleTyr: 2.352 ± 0.068
0.0IleXaa: 0.0 ± 0.0
Lys
5.197LysAla: 5.197 ± 0.11
0.649LysCys: 0.649 ± 0.037
3.641LysAsp: 3.641 ± 0.097
4.968LysGlu: 4.968 ± 0.104
2.138LysPhe: 2.138 ± 0.063
4.508LysGly: 4.508 ± 0.092
1.214LysHis: 1.214 ± 0.046
5.38LysIle: 5.38 ± 0.111
5.758LysLys: 5.758 ± 0.151
5.282LysLeu: 5.282 ± 0.098
1.861LysMet: 1.861 ± 0.059
3.324LysAsn: 3.324 ± 0.079
2.59LysPro: 2.59 ± 0.071
2.154LysGln: 2.154 ± 0.065
3.786LysArg: 3.786 ± 0.091
3.632LysSer: 3.632 ± 0.084
3.777LysThr: 3.777 ± 0.08
4.022LysVal: 4.022 ± 0.088
0.682LysTrp: 0.682 ± 0.04
2.068LysTyr: 2.068 ± 0.064
0.0LysXaa: 0.0 ± 0.0
Leu
7.832LeuAla: 7.832 ± 0.142
1.2LeuCys: 1.2 ± 0.051
5.295LeuAsp: 5.295 ± 0.118
6.438LeuGlu: 6.438 ± 0.124
4.697LeuPhe: 4.697 ± 0.124
7.036LeuGly: 7.036 ± 0.121
1.767LeuHis: 1.767 ± 0.051
7.176LeuIle: 7.176 ± 0.126
7.232LeuLys: 7.232 ± 0.115
9.435LeuLeu: 9.435 ± 0.175
2.461LeuMet: 2.461 ± 0.061
4.146LeuAsn: 4.146 ± 0.093
4.373LeuPro: 4.373 ± 0.101
2.897LeuGln: 2.897 ± 0.072
4.788LeuArg: 4.788 ± 0.09
6.7LeuSer: 6.7 ± 0.12
5.022LeuThr: 5.022 ± 0.099
6.256LeuVal: 6.256 ± 0.112
0.978LeuTrp: 0.978 ± 0.054
2.883LeuTyr: 2.883 ± 0.072
0.0LeuXaa: 0.0 ± 0.0
Met
2.385MetAla: 2.385 ± 0.064
0.236MetCys: 0.236 ± 0.023
1.481MetAsp: 1.481 ± 0.053
1.903MetGlu: 1.903 ± 0.067
0.867MetPhe: 0.867 ± 0.043
2.09MetGly: 2.09 ± 0.06
0.445MetHis: 0.445 ± 0.031
1.894MetIle: 1.894 ± 0.056
1.883MetLys: 1.883 ± 0.069
2.374MetLeu: 2.374 ± 0.066
0.665MetMet: 0.665 ± 0.038
1.151MetAsn: 1.151 ± 0.049
1.156MetPro: 1.156 ± 0.048
0.869MetGln: 0.869 ± 0.041
1.305MetArg: 1.305 ± 0.046
1.403MetSer: 1.403 ± 0.045
1.385MetThr: 1.385 ± 0.053
1.889MetVal: 1.889 ± 0.054
0.194MetTrp: 0.194 ± 0.019
0.463MetTyr: 0.463 ± 0.026
0.0MetXaa: 0.0 ± 0.0
Asn
2.776AsnAla: 2.776 ± 0.063
0.531AsnCys: 0.531 ± 0.032
1.878AsnAsp: 1.878 ± 0.064
2.196AsnGlu: 2.196 ± 0.07
1.801AsnPhe: 1.801 ± 0.06
2.483AsnGly: 2.483 ± 0.075
0.878AsnHis: 0.878 ± 0.043
3.326AsnIle: 3.326 ± 0.075
2.23AsnLys: 2.23 ± 0.061
4.377AsnLeu: 4.377 ± 0.091
0.931AsnMet: 0.931 ± 0.037
1.576AsnAsn: 1.576 ± 0.057
2.403AsnPro: 2.403 ± 0.078
1.443AsnGln: 1.443 ± 0.047
2.488AsnArg: 2.488 ± 0.07
1.952AsnSer: 1.952 ± 0.064
2.027AsnThr: 2.027 ± 0.07
2.576AsnVal: 2.576 ± 0.065
0.516AsnTrp: 0.516 ± 0.033
1.387AsnTyr: 1.387 ± 0.057
0.0AsnXaa: 0.0 ± 0.0
Pro
3.012ProAla: 3.012 ± 0.074
0.476ProCys: 0.476 ± 0.029
2.928ProAsp: 2.928 ± 0.072
3.623ProGlu: 3.623 ± 0.086
2.123ProPhe: 2.123 ± 0.062
3.43ProGly: 3.43 ± 0.086
0.878ProHis: 0.878 ± 0.046
2.785ProIle: 2.785 ± 0.069
2.525ProLys: 2.525 ± 0.062
4.002ProLeu: 4.002 ± 0.075
1.029ProMet: 1.029 ± 0.045
1.489ProAsn: 1.489 ± 0.053
1.789ProPro: 1.789 ± 0.058
1.41ProGln: 1.41 ± 0.066
1.736ProArg: 1.736 ± 0.056
2.425ProSer: 2.425 ± 0.065
1.799ProThr: 1.799 ± 0.056
3.441ProVal: 3.441 ± 0.078
0.591ProTrp: 0.591 ± 0.033
1.412ProTyr: 1.412 ± 0.054
0.0ProXaa: 0.0 ± 0.0
Gln
2.708GlnAla: 2.708 ± 0.073
0.365GlnCys: 0.365 ± 0.026
1.543GlnAsp: 1.543 ± 0.053
2.156GlnGlu: 2.156 ± 0.063
1.205GlnPhe: 1.205 ± 0.049
2.178GlnGly: 2.178 ± 0.067
0.574GlnHis: 0.574 ± 0.037
2.497GlnIle: 2.497 ± 0.059
2.681GlnLys: 2.681 ± 0.077
2.734GlnLeu: 2.734 ± 0.077
0.791GlnMet: 0.791 ± 0.04
1.367GlnAsn: 1.367 ± 0.047
1.276GlnPro: 1.276 ± 0.052
1.145GlnGln: 1.145 ± 0.05
1.905GlnArg: 1.905 ± 0.064
1.776GlnSer: 1.776 ± 0.057
1.759GlnThr: 1.759 ± 0.056
2.236GlnVal: 2.236 ± 0.064
0.458GlnTrp: 0.458 ± 0.03
0.963GlnTyr: 0.963 ± 0.043
0.0GlnXaa: 0.0 ± 0.0
Arg
3.479ArgAla: 3.479 ± 0.088
0.709ArgCys: 0.709 ± 0.038
2.666ArgAsp: 2.666 ± 0.068
3.555ArgGlu: 3.555 ± 0.096
2.639ArgPhe: 2.639 ± 0.073
3.052ArgGly: 3.052 ± 0.082
1.174ArgHis: 1.174 ± 0.044
4.493ArgIle: 4.493 ± 0.096
3.917ArgLys: 3.917 ± 0.093
5.589ArgLeu: 5.589 ± 0.101
1.52ArgMet: 1.52 ± 0.053
2.185ArgAsn: 2.185 ± 0.065
2.154ArgPro: 2.154 ± 0.063
1.899ArgGln: 1.899 ± 0.052
3.006ArgArg: 3.006 ± 0.086
3.035ArgSer: 3.035 ± 0.089
2.479ArgThr: 2.479 ± 0.068
3.463ArgVal: 3.463 ± 0.075
0.674ArgTrp: 0.674 ± 0.036
1.938ArgTyr: 1.938 ± 0.059
0.0ArgXaa: 0.0 ± 0.0
Ser
3.961SerAla: 3.961 ± 0.083
0.674SerCys: 0.674 ± 0.031
3.261SerAsp: 3.261 ± 0.074
3.672SerGlu: 3.672 ± 0.083
2.79SerPhe: 2.79 ± 0.075
4.877SerGly: 4.877 ± 0.108
1.269SerHis: 1.269 ± 0.042
4.424SerIle: 4.424 ± 0.086
3.37SerLys: 3.37 ± 0.085
5.646SerLeu: 5.646 ± 0.112
1.549SerMet: 1.549 ± 0.054
2.147SerAsn: 2.147 ± 0.067
2.519SerPro: 2.519 ± 0.07
1.838SerGln: 1.838 ± 0.054
3.221SerArg: 3.221 ± 0.092
3.33SerSer: 3.33 ± 0.096
2.73SerThr: 2.73 ± 0.073
3.752SerVal: 3.752 ± 0.085
0.649SerTrp: 0.649 ± 0.033
1.81SerTyr: 1.81 ± 0.064
0.0SerXaa: 0.0 ± 0.0
Thr
4.03ThrAla: 4.03 ± 0.092
0.565ThrCys: 0.565 ± 0.035
2.756ThrAsp: 2.756 ± 0.068
2.85ThrGlu: 2.85 ± 0.073
2.496ThrPhe: 2.496 ± 0.062
4.559ThrGly: 4.559 ± 0.111
1.052ThrHis: 1.052 ± 0.044
3.937ThrIle: 3.937 ± 0.08
2.548ThrLys: 2.548 ± 0.071
5.313ThrLeu: 5.313 ± 0.101
1.138ThrMet: 1.138 ± 0.046
1.785ThrAsn: 1.785 ± 0.059
2.412ThrPro: 2.412 ± 0.062
1.503ThrGln: 1.503 ± 0.05
2.546ThrArg: 2.546 ± 0.06
2.656ThrSer: 2.656 ± 0.07
2.583ThrThr: 2.583 ± 0.075
3.608ThrVal: 3.608 ± 0.088
0.54ThrTrp: 0.54 ± 0.033
1.603ThrTyr: 1.603 ± 0.057
0.0ThrXaa: 0.0 ± 0.0
Val
5.066ValAla: 5.066 ± 0.101
0.954ValCys: 0.954 ± 0.043
3.699ValAsp: 3.699 ± 0.082
4.213ValGlu: 4.213 ± 0.085
3.17ValPhe: 3.17 ± 0.074
4.261ValGly: 4.261 ± 0.083
1.34ValHis: 1.34 ± 0.051
4.993ValIle: 4.993 ± 0.106
4.197ValLys: 4.197 ± 0.093
6.774ValLeu: 6.774 ± 0.121
1.778ValMet: 1.778 ± 0.063
2.508ValAsn: 2.508 ± 0.073
2.906ValPro: 2.906 ± 0.064
1.872ValGln: 1.872 ± 0.06
3.23ValArg: 3.23 ± 0.073
4.182ValSer: 4.182 ± 0.093
3.633ValThr: 3.633 ± 0.087
4.911ValVal: 4.911 ± 0.123
0.716ValTrp: 0.716 ± 0.035
2.023ValTyr: 2.023 ± 0.064
0.0ValXaa: 0.0 ± 0.0
Trp
0.834TrpAla: 0.834 ± 0.042
0.131TrpCys: 0.131 ± 0.015
0.607TrpAsp: 0.607 ± 0.033
0.713TrpGlu: 0.713 ± 0.031
0.558TrpPhe: 0.558 ± 0.033
0.814TrpGly: 0.814 ± 0.041
0.276TrpHis: 0.276 ± 0.025
0.898TrpIle: 0.898 ± 0.041
0.738TrpLys: 0.738 ± 0.042
1.092TrpLeu: 1.092 ± 0.048
0.327TrpMet: 0.327 ± 0.024
0.471TrpAsn: 0.471 ± 0.033
0.489TrpPro: 0.489 ± 0.029
0.465TrpGln: 0.465 ± 0.029
0.634TrpArg: 0.634 ± 0.036
0.563TrpSer: 0.563 ± 0.032
0.514TrpThr: 0.514 ± 0.029
0.769TrpVal: 0.769 ± 0.038
0.185TrpTrp: 0.185 ± 0.018
0.4TrpTyr: 0.4 ± 0.028
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.15TyrAla: 2.15 ± 0.064
0.531TyrCys: 0.531 ± 0.03
1.714TyrAsp: 1.714 ± 0.056
1.885TyrGlu: 1.885 ± 0.062
1.763TyrPhe: 1.763 ± 0.062
2.357TyrGly: 2.357 ± 0.088
0.862TyrHis: 0.862 ± 0.037
1.979TyrIle: 1.979 ± 0.062
1.832TyrLys: 1.832 ± 0.054
3.401TyrLeu: 3.401 ± 0.092
0.631TyrMet: 0.631 ± 0.033
1.211TyrAsn: 1.211 ± 0.057
1.576TyrPro: 1.576 ± 0.052
1.232TyrGln: 1.232 ± 0.047
2.058TyrArg: 2.058 ± 0.071
1.85TyrSer: 1.85 ± 0.062
1.409TyrThr: 1.409 ± 0.052
1.789TyrVal: 1.789 ± 0.063
0.458TyrTrp: 0.458 ± 0.029
1.24TyrTyr: 1.24 ± 0.057
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
0.002XaaGly: 0.002 ± 0.001
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
0.002XaaSer: 0.002 ± 0.002
0.0XaaThr: 0.0 ± 0.0
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.007XaaXaa: 0.007 ± 0.005
Statistics based on 2621 proteins (550168 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