Amino acid dipepetide frequency for Halobacterium jilantaiense

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
17.025AlaAla: 17.025 ± 0.227
0.747AlaCys: 0.747 ± 0.033
11.787AlaAsp: 11.787 ± 0.147
8.58AlaGlu: 8.58 ± 0.131
4.372AlaPhe: 4.372 ± 0.085
11.148AlaGly: 11.148 ± 0.139
1.95AlaHis: 1.95 ± 0.041
3.678AlaIle: 3.678 ± 0.076
1.77AlaLys: 1.77 ± 0.051
11.344AlaLeu: 11.344 ± 0.129
2.088AlaMet: 2.088 ± 0.047
2.45AlaAsn: 2.45 ± 0.055
4.284AlaPro: 4.284 ± 0.078
2.252AlaGln: 2.252 ± 0.047
6.507AlaArg: 6.507 ± 0.097
6.292AlaSer: 6.292 ± 0.1
7.441AlaThr: 7.441 ± 0.103
12.732AlaVal: 12.732 ± 0.153
1.283AlaTrp: 1.283 ± 0.041
2.862AlaTyr: 2.862 ± 0.058
0.0AlaXaa: 0.0 ± 0.0
Cys
0.602CysAla: 0.602 ± 0.029
0.058CysCys: 0.058 ± 0.009
0.489CysAsp: 0.489 ± 0.024
0.599CysGlu: 0.599 ± 0.028
0.175CysPhe: 0.175 ± 0.015
0.885CysGly: 0.885 ± 0.036
0.159CysHis: 0.159 ± 0.014
0.216CysIle: 0.216 ± 0.016
0.077CysLys: 0.077 ± 0.012
0.515CysLeu: 0.515 ± 0.023
0.101CysMet: 0.101 ± 0.011
0.148CysAsn: 0.148 ± 0.014
0.534CysPro: 0.534 ± 0.025
0.173CysGln: 0.173 ± 0.014
0.421CysArg: 0.421 ± 0.026
0.379CysSer: 0.379 ± 0.025
0.387CysThr: 0.387 ± 0.025
0.526CysVal: 0.526 ± 0.027
0.062CysTrp: 0.062 ± 0.008
0.156CysTyr: 0.156 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
13.166AspAla: 13.166 ± 0.153
0.73AspCys: 0.73 ± 0.033
8.966AspAsp: 8.966 ± 0.123
7.761AspGlu: 7.761 ± 0.11
2.248AspPhe: 2.248 ± 0.058
8.793AspGly: 8.793 ± 0.131
2.106AspHis: 2.106 ± 0.062
2.892AspIle: 2.892 ± 0.066
0.906AspLys: 0.906 ± 0.031
7.721AspLeu: 7.721 ± 0.118
1.26AspMet: 1.26 ± 0.044
1.303AspAsn: 1.303 ± 0.047
4.762AspPro: 4.762 ± 0.073
1.787AspGln: 1.787 ± 0.046
6.495AspArg: 6.495 ± 0.11
4.097AspSer: 4.097 ± 0.072
4.683AspThr: 4.683 ± 0.087
8.698AspVal: 8.698 ± 0.111
1.276AspTrp: 1.276 ± 0.041
2.208AspTyr: 2.208 ± 0.052
0.0AspXaa: 0.0 ± 0.0
Glu
8.593GluAla: 8.593 ± 0.143
0.525GluCys: 0.525 ± 0.028
6.709GluAsp: 6.709 ± 0.108
5.633GluGlu: 5.633 ± 0.115
3.007GluPhe: 3.007 ± 0.063
4.898GluGly: 4.898 ± 0.088
2.068GluHis: 2.068 ± 0.056
2.639GluIle: 2.639 ± 0.061
1.599GluLys: 1.599 ± 0.046
7.036GluLeu: 7.036 ± 0.107
1.66GluMet: 1.66 ± 0.047
2.185GluAsn: 2.185 ± 0.052
3.706GluPro: 3.706 ± 0.079
2.683GluGln: 2.683 ± 0.062
7.16GluArg: 7.16 ± 0.109
4.683GluSer: 4.683 ± 0.08
6.087GluThr: 6.087 ± 0.104
5.981GluVal: 5.981 ± 0.104
0.998GluTrp: 0.998 ± 0.036
2.545GluTyr: 2.545 ± 0.059
0.0GluXaa: 0.0 ± 0.0
Phe
4.048PheAla: 4.048 ± 0.079
0.242PheCys: 0.242 ± 0.018
3.426PheAsp: 3.426 ± 0.067
3.145PheGlu: 3.145 ± 0.056
0.96PhePhe: 0.96 ± 0.036
3.201PheGly: 3.201 ± 0.07
0.588PheHis: 0.588 ± 0.025
0.751PheIle: 0.751 ± 0.036
0.422PheLys: 0.422 ± 0.02
2.803PheLeu: 2.803 ± 0.063
0.478PheMet: 0.478 ± 0.025
0.613PheAsn: 0.613 ± 0.028
1.372PhePro: 1.372 ± 0.046
0.816PheGln: 0.816 ± 0.03
1.772PheArg: 1.772 ± 0.049
1.624PheSer: 1.624 ± 0.046
1.801PheThr: 1.801 ± 0.047
3.509PheVal: 3.509 ± 0.064
0.365PheTrp: 0.365 ± 0.022
0.837PheTyr: 0.837 ± 0.034
0.0PheXaa: 0.0 ± 0.0
Gly
8.461GlyAla: 8.461 ± 0.114
0.691GlyCys: 0.691 ± 0.031
8.469GlyAsp: 8.469 ± 0.116
7.155GlyGlu: 7.155 ± 0.109
3.276GlyPhe: 3.276 ± 0.063
7.738GlyGly: 7.738 ± 0.118
1.715GlyHis: 1.715 ± 0.046
3.195GlyIle: 3.195 ± 0.08
1.641GlyLys: 1.641 ± 0.049
7.197GlyLeu: 7.197 ± 0.113
1.562GlyMet: 1.562 ± 0.049
1.882GlyAsn: 1.882 ± 0.055
3.264GlyPro: 3.264 ± 0.059
1.966GlyGln: 1.966 ± 0.053
4.917GlyArg: 4.917 ± 0.089
5.133GlySer: 5.133 ± 0.092
5.481GlyThr: 5.481 ± 0.099
9.124GlyVal: 9.124 ± 0.127
1.112GlyTrp: 1.112 ± 0.041
2.555GlyTyr: 2.555 ± 0.057
0.0GlyXaa: 0.0 ± 0.0
His
2.265HisAla: 2.265 ± 0.055
0.197HisCys: 0.197 ± 0.015
1.992HisAsp: 1.992 ± 0.049
1.697HisGlu: 1.697 ± 0.043
0.551HisPhe: 0.551 ± 0.027
2.028HisGly: 2.028 ± 0.048
0.576HisHis: 0.576 ± 0.027
0.554HisIle: 0.554 ± 0.027
0.26HisLys: 0.26 ± 0.017
1.72HisLeu: 1.72 ± 0.041
0.279HisMet: 0.279 ± 0.018
0.387HisAsn: 0.387 ± 0.02
1.239HisPro: 1.239 ± 0.036
0.46HisGln: 0.46 ± 0.026
1.285HisArg: 1.285 ± 0.04
0.866HisSer: 0.866 ± 0.035
1.01HisThr: 1.01 ± 0.032
2.087HisVal: 2.087 ± 0.053
0.239HisTrp: 0.239 ± 0.014
0.593HisTyr: 0.593 ± 0.027
0.0HisXaa: 0.0 ± 0.0
Ile
3.537IleAla: 3.537 ± 0.074
0.166IleCys: 0.166 ± 0.013
2.807IleAsp: 2.807 ± 0.069
3.129IleGlu: 3.129 ± 0.067
0.723IlePhe: 0.723 ± 0.035
2.605IleGly: 2.605 ± 0.063
0.665IleHis: 0.665 ± 0.029
0.829IleIle: 0.829 ± 0.04
0.476IleLys: 0.476 ± 0.027
2.287IleLeu: 2.287 ± 0.064
0.348IleMet: 0.348 ± 0.019
0.632IleAsn: 0.632 ± 0.029
1.701IlePro: 1.701 ± 0.056
0.961IleGln: 0.961 ± 0.038
1.874IleArg: 1.874 ± 0.049
1.627IleSer: 1.627 ± 0.057
1.75IleThr: 1.75 ± 0.045
2.655IleVal: 2.655 ± 0.066
0.249IleTrp: 0.249 ± 0.018
0.627IleTyr: 0.627 ± 0.032
0.0IleXaa: 0.0 ± 0.0
Lys
1.55LysAla: 1.55 ± 0.046
0.086LysCys: 0.086 ± 0.01
1.073LysAsp: 1.073 ± 0.04
1.019LysGlu: 1.019 ± 0.042
0.486LysPhe: 0.486 ± 0.023
1.171LysGly: 1.171 ± 0.039
0.446LysHis: 0.446 ± 0.026
0.568LysIle: 0.568 ± 0.029
0.382LysLys: 0.382 ± 0.025
1.571LysLeu: 1.571 ± 0.048
0.304LysMet: 0.304 ± 0.02
0.498LysAsn: 0.498 ± 0.026
0.822LysPro: 0.822 ± 0.032
0.748LysGln: 0.748 ± 0.029
1.435LysArg: 1.435 ± 0.045
1.018LysSer: 1.018 ± 0.038
1.14LysThr: 1.14 ± 0.04
1.204LysVal: 1.204 ± 0.037
0.219LysTrp: 0.219 ± 0.016
0.536LysTyr: 0.536 ± 0.027
0.0LysXaa: 0.0 ± 0.0
Leu
12.845LeuAla: 12.845 ± 0.168
0.482LeuCys: 0.482 ± 0.023
8.43LeuAsp: 8.43 ± 0.109
5.509LeuGlu: 5.509 ± 0.101
2.923LeuPhe: 2.923 ± 0.074
7.801LeuGly: 7.801 ± 0.106
1.584LeuHis: 1.584 ± 0.044
1.711LeuIle: 1.711 ± 0.055
1.431LeuLys: 1.431 ± 0.047
8.073LeuLeu: 8.073 ± 0.123
1.188LeuMet: 1.188 ± 0.042
1.745LeuAsn: 1.745 ± 0.049
4.184LeuPro: 4.184 ± 0.075
2.046LeuGln: 2.046 ± 0.052
5.599LeuArg: 5.599 ± 0.083
5.38LeuSer: 5.38 ± 0.081
5.086LeuThr: 5.086 ± 0.081
9.033LeuVal: 9.033 ± 0.125
0.825LeuTrp: 0.825 ± 0.031
2.054LeuTyr: 2.054 ± 0.057
0.0LeuXaa: 0.0 ± 0.0
Met
1.72MetAla: 1.72 ± 0.05
0.104MetCys: 0.104 ± 0.01
1.279MetAsp: 1.279 ± 0.041
1.019MetGlu: 1.019 ± 0.036
0.463MetPhe: 0.463 ± 0.022
1.265MetGly: 1.265 ± 0.041
0.324MetHis: 0.324 ± 0.02
0.404MetIle: 0.404 ± 0.023
0.377MetLys: 0.377 ± 0.02
1.438MetLeu: 1.438 ± 0.046
0.258MetMet: 0.258 ± 0.02
0.515MetAsn: 0.515 ± 0.023
0.827MetPro: 0.827 ± 0.029
0.5MetGln: 0.5 ± 0.026
1.135MetArg: 1.135 ± 0.037
1.335MetSer: 1.335 ± 0.043
1.467MetThr: 1.467 ± 0.041
1.226MetVal: 1.226 ± 0.041
0.141MetTrp: 0.141 ± 0.013
0.366MetTyr: 0.366 ± 0.022
0.0MetXaa: 0.0 ± 0.0
Asn
2.548AsnAla: 2.548 ± 0.052
0.19AsnCys: 0.19 ± 0.015
1.711AsnAsp: 1.711 ± 0.048
1.55AsnGlu: 1.55 ± 0.044
0.648AsnPhe: 0.648 ± 0.03
1.846AsnGly: 1.846 ± 0.055
0.485AsnHis: 0.485 ± 0.023
0.777AsnIle: 0.777 ± 0.032
0.386AsnLys: 0.386 ± 0.022
1.749AsnLeu: 1.749 ± 0.049
0.389AsnMet: 0.389 ± 0.023
0.516AsnAsn: 0.516 ± 0.028
1.522AsnPro: 1.522 ± 0.042
0.61AsnGln: 0.61 ± 0.029
1.382AsnArg: 1.382 ± 0.042
0.955AsnSer: 0.955 ± 0.03
1.303AsnThr: 1.303 ± 0.043
2.324AsnVal: 2.324 ± 0.05
0.276AsnTrp: 0.276 ± 0.019
0.646AsnTyr: 0.646 ± 0.026
0.0AsnXaa: 0.0 ± 0.0
Pro
4.957ProAla: 4.957 ± 0.08
0.224ProCys: 0.224 ± 0.017
5.023ProAsp: 5.023 ± 0.074
4.804ProGlu: 4.804 ± 0.077
1.506ProPhe: 1.506 ± 0.047
4.031ProGly: 4.031 ± 0.078
0.853ProHis: 0.853 ± 0.03
1.339ProIle: 1.339 ± 0.041
0.714ProLys: 0.714 ± 0.026
3.568ProLeu: 3.568 ± 0.078
0.79ProMet: 0.79 ± 0.032
1.107ProAsn: 1.107 ± 0.028
2.183ProPro: 2.183 ± 0.059
0.967ProGln: 0.967 ± 0.036
2.243ProArg: 2.243 ± 0.052
2.667ProSer: 2.667 ± 0.058
3.103ProThr: 3.103 ± 0.072
4.41ProVal: 4.41 ± 0.07
0.486ProTrp: 0.486 ± 0.023
1.063ProTyr: 1.063 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
2.645GlnAla: 2.645 ± 0.061
0.152GlnCys: 0.152 ± 0.013
1.455GlnAsp: 1.455 ± 0.046
1.508GlnGlu: 1.508 ± 0.045
1.107GlnPhe: 1.107 ± 0.038
1.569GlnGly: 1.569 ± 0.043
0.564GlnHis: 0.564 ± 0.023
0.806GlnIle: 0.806 ± 0.03
0.555GlnLys: 0.555 ± 0.026
2.119GlnLeu: 2.119 ± 0.053
0.546GlnMet: 0.546 ± 0.025
0.741GlnAsn: 0.741 ± 0.033
1.288GlnPro: 1.288 ± 0.041
1.051GlnGln: 1.051 ± 0.046
2.063GlnArg: 2.063 ± 0.051
1.812GlnSer: 1.812 ± 0.052
1.825GlnThr: 1.825 ± 0.054
1.878GlnVal: 1.878 ± 0.049
0.366GlnTrp: 0.366 ± 0.021
0.855GlnTyr: 0.855 ± 0.036
0.0GlnXaa: 0.0 ± 0.0
Arg
7.049ArgAla: 7.049 ± 0.106
0.407ArgCys: 0.407 ± 0.025
5.627ArgAsp: 5.627 ± 0.09
6.709ArgGlu: 6.709 ± 0.109
2.069ArgPhe: 2.069 ± 0.048
4.612ArgGly: 4.612 ± 0.07
1.267ArgHis: 1.267 ± 0.042
2.341ArgIle: 2.341 ± 0.057
1.299ArgLys: 1.299 ± 0.045
5.76ArgLeu: 5.76 ± 0.094
1.129ArgMet: 1.129 ± 0.04
1.539ArgAsn: 1.539 ± 0.041
2.379ArgPro: 2.379 ± 0.055
1.838ArgGln: 1.838 ± 0.052
4.687ArgArg: 4.687 ± 0.087
3.207ArgSer: 3.207 ± 0.058
3.635ArgThr: 3.635 ± 0.068
6.123ArgVal: 6.123 ± 0.099
0.663ArgTrp: 0.663 ± 0.03
1.77ArgTyr: 1.77 ± 0.048
0.0ArgXaa: 0.0 ± 0.0
Ser
5.552SerAla: 5.552 ± 0.092
0.309SerCys: 0.309 ± 0.017
4.51SerAsp: 4.51 ± 0.074
4.401SerGlu: 4.401 ± 0.08
1.966SerPhe: 1.966 ± 0.058
5.501SerGly: 5.501 ± 0.095
0.973SerHis: 0.973 ± 0.035
1.783SerIle: 1.783 ± 0.055
1.049SerLys: 1.049 ± 0.037
4.906SerLeu: 4.906 ± 0.074
1.021SerMet: 1.021 ± 0.034
1.239SerAsn: 1.239 ± 0.041
2.553SerPro: 2.553 ± 0.063
1.426SerGln: 1.426 ± 0.046
3.164SerArg: 3.164 ± 0.066
2.78SerSer: 2.78 ± 0.071
3.382SerThr: 3.382 ± 0.064
5.667SerVal: 5.667 ± 0.081
0.553SerTrp: 0.553 ± 0.028
1.314SerTyr: 1.314 ± 0.039
0.0SerXaa: 0.0 ± 0.0
Thr
7.211ThrAla: 7.211 ± 0.091
0.317ThrCys: 0.317 ± 0.02
5.582ThrAsp: 5.582 ± 0.091
4.712ThrGlu: 4.712 ± 0.091
1.964ThrPhe: 1.964 ± 0.042
5.878ThrGly: 5.878 ± 0.097
1.189ThrHis: 1.189 ± 0.039
2.241ThrIle: 2.241 ± 0.055
0.913ThrLys: 0.913 ± 0.038
5.527ThrLeu: 5.527 ± 0.086
0.983ThrMet: 0.983 ± 0.03
1.357ThrAsn: 1.357 ± 0.041
3.301ThrPro: 3.301 ± 0.077
1.387ThrGln: 1.387 ± 0.039
3.302ThrArg: 3.302 ± 0.062
2.933ThrSer: 2.933 ± 0.066
4.463ThrThr: 4.463 ± 0.116
7.468ThrVal: 7.468 ± 0.133
0.65ThrTrp: 0.65 ± 0.027
1.697ThrTyr: 1.697 ± 0.048
0.0ThrXaa: 0.0 ± 0.0
Val
12.851ValAla: 12.851 ± 0.176
0.704ValCys: 0.704 ± 0.028
9.118ValAsp: 9.118 ± 0.119
8.361ValGlu: 8.361 ± 0.119
3.113ValPhe: 3.113 ± 0.062
8.425ValGly: 8.425 ± 0.109
1.915ValHis: 1.915 ± 0.046
2.061ValIle: 2.061 ± 0.055
1.432ValLys: 1.432 ± 0.039
8.878ValLeu: 8.878 ± 0.11
1.231ValMet: 1.231 ± 0.045
2.08ValAsn: 2.08 ± 0.051
4.468ValPro: 4.468 ± 0.076
2.14ValGln: 2.14 ± 0.051
5.909ValArg: 5.909 ± 0.094
5.492ValSer: 5.492 ± 0.088
6.689ValThr: 6.689 ± 0.112
11.304ValVal: 11.304 ± 0.133
0.93ValTrp: 0.93 ± 0.033
2.336ValTyr: 2.336 ± 0.053
0.0ValXaa: 0.0 ± 0.0
Trp
1.069TrpAla: 1.069 ± 0.037
0.09TrpCys: 0.09 ± 0.01
0.784TrpAsp: 0.784 ± 0.035
0.734TrpGlu: 0.734 ± 0.028
0.43TrpPhe: 0.43 ± 0.023
0.844TrpGly: 0.844 ± 0.034
0.231TrpHis: 0.231 ± 0.015
0.258TrpIle: 0.258 ± 0.019
0.223TrpLys: 0.223 ± 0.017
1.331TrpLeu: 1.331 ± 0.046
0.216TrpMet: 0.216 ± 0.016
0.285TrpAsn: 0.285 ± 0.018
0.447TrpPro: 0.447 ± 0.023
0.408TrpGln: 0.408 ± 0.023
0.903TrpArg: 0.903 ± 0.033
0.58TrpSer: 0.58 ± 0.023
0.863TrpThr: 0.863 ± 0.029
1.003TrpVal: 1.003 ± 0.038
0.199TrpTrp: 0.199 ± 0.014
0.352TrpTyr: 0.352 ± 0.022
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.899TyrAla: 2.899 ± 0.062
0.242TyrCys: 0.242 ± 0.016
2.62TyrAsp: 2.62 ± 0.062
2.371TyrGlu: 2.371 ± 0.055
0.79TyrPhe: 0.79 ± 0.03
2.297TyrGly: 2.297 ± 0.048
0.628TyrHis: 0.628 ± 0.03
0.604TyrIle: 0.604 ± 0.028
0.365TyrLys: 0.365 ± 0.02
2.387TyrLeu: 2.387 ± 0.064
0.328TyrMet: 0.328 ± 0.02
0.59TyrAsn: 0.59 ± 0.025
1.202TyrPro: 1.202 ± 0.036
0.685TyrGln: 0.685 ± 0.03
1.856TyrArg: 1.856 ± 0.046
1.188TyrSer: 1.188 ± 0.032
1.478TyrThr: 1.478 ± 0.044
2.484TyrVal: 2.484 ± 0.06
0.357TyrTrp: 0.357 ± 0.019
0.839TyrTyr: 0.839 ± 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 3054 proteins (884077 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