Amino acid dipepetide frequency for Rhizobium sp. NXC24

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
15.305AlaAla: 15.305 ± 0.135
1.009AlaCys: 1.009 ± 0.025
6.629AlaAsp: 6.629 ± 0.063
7.099AlaGlu: 7.099 ± 0.067
4.488AlaPhe: 4.488 ± 0.055
9.482AlaGly: 9.482 ± 0.081
2.105AlaHis: 2.105 ± 0.033
7.041AlaIle: 7.041 ± 0.067
4.598AlaLys: 4.598 ± 0.053
12.131AlaLeu: 12.131 ± 0.112
3.271AlaMet: 3.271 ± 0.04
3.276AlaAsn: 3.276 ± 0.046
4.506AlaPro: 4.506 ± 0.056
3.48AlaGln: 3.48 ± 0.051
7.162AlaArg: 7.162 ± 0.068
6.588AlaSer: 6.588 ± 0.067
5.71AlaThr: 5.71 ± 0.061
8.27AlaVal: 8.27 ± 0.063
1.33AlaTrp: 1.33 ± 0.024
2.602AlaTyr: 2.602 ± 0.038
0.0AlaXaa: 0.0 ± 0.0
Cys
0.88CysAla: 0.88 ± 0.021
0.108CysCys: 0.108 ± 0.008
0.513CysAsp: 0.513 ± 0.016
0.453CysGlu: 0.453 ± 0.014
0.363CysPhe: 0.363 ± 0.013
0.937CysGly: 0.937 ± 0.023
0.234CysHis: 0.234 ± 0.011
0.438CysIle: 0.438 ± 0.014
0.217CysLys: 0.217 ± 0.012
0.844CysLeu: 0.844 ± 0.02
0.174CysMet: 0.174 ± 0.01
0.237CysAsn: 0.237 ± 0.011
0.401CysPro: 0.401 ± 0.016
0.25CysGln: 0.25 ± 0.012
0.607CysArg: 0.607 ± 0.019
0.519CysSer: 0.519 ± 0.019
0.414CysThr: 0.414 ± 0.015
0.61CysVal: 0.61 ± 0.019
0.131CysTrp: 0.131 ± 0.008
0.213CysTyr: 0.213 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.287AspAla: 6.287 ± 0.062
0.512AspCys: 0.512 ± 0.017
3.224AspAsp: 3.224 ± 0.05
3.475AspGlu: 3.475 ± 0.043
2.317AspPhe: 2.317 ± 0.039
4.929AspGly: 4.929 ± 0.064
1.291AspHis: 1.291 ± 0.028
3.601AspIle: 3.601 ± 0.039
2.003AspLys: 2.003 ± 0.034
5.742AspLeu: 5.742 ± 0.057
1.352AspMet: 1.352 ± 0.026
1.611AspAsn: 1.611 ± 0.026
3.251AspPro: 3.251 ± 0.044
1.878AspGln: 1.878 ± 0.049
4.093AspArg: 4.093 ± 0.048
2.354AspSer: 2.354 ± 0.039
2.55AspThr: 2.55 ± 0.041
4.156AspVal: 4.156 ± 0.043
0.965AspTrp: 0.965 ± 0.022
1.614AspTyr: 1.614 ± 0.028
0.0AspXaa: 0.0 ± 0.0
Glu
6.972GluAla: 6.972 ± 0.067
0.373GluCys: 0.373 ± 0.014
2.784GluAsp: 2.784 ± 0.038
3.386GluGlu: 3.386 ± 0.054
1.909GluPhe: 1.909 ± 0.029
4.0GluGly: 4.0 ± 0.041
1.215GluHis: 1.215 ± 0.023
3.832GluIle: 3.832 ± 0.045
2.712GluLys: 2.712 ± 0.043
5.322GluLeu: 5.322 ± 0.062
1.549GluMet: 1.549 ± 0.028
1.826GluAsn: 1.826 ± 0.032
2.564GluPro: 2.564 ± 0.035
2.147GluGln: 2.147 ± 0.031
4.664GluArg: 4.664 ± 0.06
2.434GluSer: 2.434 ± 0.039
3.469GluThr: 3.469 ± 0.043
3.593GluVal: 3.593 ± 0.044
0.729GluTrp: 0.729 ± 0.019
1.057GluTyr: 1.057 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
4.573PheAla: 4.573 ± 0.052
0.431PheCys: 0.431 ± 0.014
2.823PheAsp: 2.823 ± 0.04
2.251PheGlu: 2.251 ± 0.032
1.662PhePhe: 1.662 ± 0.037
3.75PheGly: 3.75 ± 0.047
0.844PheHis: 0.844 ± 0.022
2.031PheIle: 2.031 ± 0.039
1.209PheLys: 1.209 ± 0.025
3.571PheLeu: 3.571 ± 0.05
0.872PheMet: 0.872 ± 0.019
1.219PheAsn: 1.219 ± 0.024
1.663PhePro: 1.663 ± 0.03
1.111PheGln: 1.111 ± 0.024
2.32PheArg: 2.32 ± 0.034
2.567PheSer: 2.567 ± 0.036
2.019PheThr: 2.019 ± 0.038
2.918PheVal: 2.918 ± 0.039
0.557PheTrp: 0.557 ± 0.017
1.047PheTyr: 1.047 ± 0.026
0.0PheXaa: 0.0 ± 0.0
Gly
8.04GlyAla: 8.04 ± 0.08
0.831GlyCys: 0.831 ± 0.021
4.241GlyAsp: 4.241 ± 0.056
4.471GlyGlu: 4.471 ± 0.047
3.642GlyPhe: 3.642 ± 0.044
6.667GlyGly: 6.667 ± 0.076
1.907GlyHis: 1.907 ± 0.036
4.986GlyIle: 4.986 ± 0.053
3.776GlyLys: 3.776 ± 0.052
8.392GlyLeu: 8.392 ± 0.065
2.189GlyMet: 2.189 ± 0.03
2.49GlyAsn: 2.49 ± 0.042
3.108GlyPro: 3.108 ± 0.047
2.726GlyGln: 2.726 ± 0.037
5.469GlyArg: 5.469 ± 0.055
4.826GlySer: 4.826 ± 0.057
4.362GlyThr: 4.362 ± 0.068
5.625GlyVal: 5.625 ± 0.051
1.264GlyTrp: 1.264 ± 0.027
2.428GlyTyr: 2.428 ± 0.034
0.0GlyXaa: 0.0 ± 0.0
His
2.166HisAla: 2.166 ± 0.034
0.232HisCys: 0.232 ± 0.011
1.245HisAsp: 1.245 ± 0.028
1.093HisGlu: 1.093 ± 0.024
0.985HisPhe: 0.985 ± 0.02
1.873HisGly: 1.873 ± 0.034
0.634HisHis: 0.634 ± 0.026
1.131HisIle: 1.131 ± 0.025
0.541HisLys: 0.541 ± 0.016
2.142HisLeu: 2.142 ± 0.036
0.554HisMet: 0.554 ± 0.016
0.536HisAsn: 0.536 ± 0.016
1.331HisPro: 1.331 ± 0.029
0.617HisGln: 0.617 ± 0.018
1.481HisArg: 1.481 ± 0.03
1.055HisSer: 1.055 ± 0.023
0.864HisThr: 0.864 ± 0.021
1.543HisVal: 1.543 ± 0.024
0.351HisTrp: 0.351 ± 0.013
0.577HisTyr: 0.577 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
7.936IleAla: 7.936 ± 0.096
0.583IleCys: 0.583 ± 0.019
3.955IleAsp: 3.955 ± 0.041
3.771IleGlu: 3.771 ± 0.048
2.093IlePhe: 2.093 ± 0.033
5.543IleGly: 5.543 ± 0.057
1.066IleHis: 1.066 ± 0.021
2.949IleIle: 2.949 ± 0.045
1.816IleLys: 1.816 ± 0.028
5.004IleLeu: 5.004 ± 0.054
1.133IleMet: 1.133 ± 0.025
1.78IleAsn: 1.78 ± 0.029
2.549IlePro: 2.549 ± 0.038
1.39IleGln: 1.39 ± 0.025
3.503IleArg: 3.503 ± 0.042
3.678IleSer: 3.678 ± 0.044
2.896IleThr: 2.896 ± 0.043
4.729IleVal: 4.729 ± 0.056
0.683IleTrp: 0.683 ± 0.018
1.314IleTyr: 1.314 ± 0.025
0.0IleXaa: 0.0 ± 0.0
Lys
4.742LysAla: 4.742 ± 0.058
0.183LysCys: 0.183 ± 0.011
2.101LysAsp: 2.101 ± 0.03
1.942LysGlu: 1.942 ± 0.034
1.086LysPhe: 1.086 ± 0.023
2.866LysGly: 2.866 ± 0.045
0.736LysHis: 0.736 ± 0.018
2.227LysIle: 2.227 ± 0.038
1.566LysLys: 1.566 ± 0.036
3.847LysLeu: 3.847 ± 0.045
0.974LysMet: 0.974 ± 0.025
1.127LysAsn: 1.127 ± 0.025
2.306LysPro: 2.306 ± 0.04
1.262LysGln: 1.262 ± 0.025
2.571LysArg: 2.571 ± 0.036
2.376LysSer: 2.376 ± 0.033
2.358LysThr: 2.358 ± 0.037
2.73LysVal: 2.73 ± 0.037
0.431LysTrp: 0.431 ± 0.014
0.741LysTyr: 0.741 ± 0.019
0.0LysXaa: 0.0 ± 0.0
Leu
12.209LeuAla: 12.209 ± 0.087
0.899LeuCys: 0.899 ± 0.02
5.793LeuAsp: 5.793 ± 0.06
5.134LeuGlu: 5.134 ± 0.056
3.747LeuPhe: 3.747 ± 0.059
7.644LeuGly: 7.644 ± 0.069
1.879LeuHis: 1.879 ± 0.029
5.422LeuIle: 5.422 ± 0.06
4.134LeuLys: 4.134 ± 0.053
9.321LeuLeu: 9.321 ± 0.101
2.41LeuMet: 2.41 ± 0.03
2.896LeuAsn: 2.896 ± 0.039
5.24LeuPro: 5.24 ± 0.056
3.023LeuGln: 3.023 ± 0.046
6.321LeuArg: 6.321 ± 0.067
7.133LeuSer: 7.133 ± 0.105
5.696LeuThr: 5.696 ± 0.065
6.962LeuVal: 6.962 ± 0.062
1.143LeuTrp: 1.143 ± 0.026
2.135LeuTyr: 2.135 ± 0.033
0.0LeuXaa: 0.0 ± 0.0
Met
2.994MetAla: 2.994 ± 0.043
0.161MetCys: 0.161 ± 0.01
1.178MetAsp: 1.178 ± 0.027
1.17MetGlu: 1.17 ± 0.023
0.739MetPhe: 0.739 ± 0.018
1.691MetGly: 1.691 ± 0.034
0.474MetHis: 0.474 ± 0.017
1.537MetIle: 1.537 ± 0.029
1.093MetLys: 1.093 ± 0.026
2.486MetLeu: 2.486 ± 0.035
0.656MetMet: 0.656 ± 0.02
0.899MetAsn: 0.899 ± 0.022
1.455MetPro: 1.455 ± 0.03
0.891MetGln: 0.891 ± 0.022
1.815MetArg: 1.815 ± 0.031
1.788MetSer: 1.788 ± 0.026
1.91MetThr: 1.91 ± 0.028
1.691MetVal: 1.691 ± 0.029
0.196MetTrp: 0.196 ± 0.01
0.347MetTyr: 0.347 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
3.421AsnAla: 3.421 ± 0.042
0.264AsnCys: 0.264 ± 0.011
1.672AsnAsp: 1.672 ± 0.028
1.512AsnGlu: 1.512 ± 0.028
1.242AsnPhe: 1.242 ± 0.026
2.831AsnGly: 2.831 ± 0.048
0.629AsnHis: 0.629 ± 0.019
1.699AsnIle: 1.699 ± 0.03
0.902AsnLys: 0.902 ± 0.024
2.918AsnLeu: 2.918 ± 0.044
0.699AsnMet: 0.699 ± 0.017
0.91AsnAsn: 0.91 ± 0.021
1.931AsnPro: 1.931 ± 0.033
0.934AsnGln: 0.934 ± 0.021
1.9AsnArg: 1.9 ± 0.032
1.651AsnSer: 1.651 ± 0.031
1.458AsnThr: 1.458 ± 0.031
2.161AsnVal: 2.161 ± 0.033
0.503AsnTrp: 0.503 ± 0.015
0.786AsnTyr: 0.786 ± 0.021
0.0AsnXaa: 0.0 ± 0.0
Pro
5.433ProAla: 5.433 ± 0.053
0.3ProCys: 0.3 ± 0.012
3.339ProAsp: 3.339 ± 0.049
3.415ProGlu: 3.415 ± 0.041
1.956ProPhe: 1.956 ± 0.036
3.829ProGly: 3.829 ± 0.048
1.064ProHis: 1.064 ± 0.021
2.48ProIle: 2.48 ± 0.035
1.88ProLys: 1.88 ± 0.031
4.593ProLeu: 4.593 ± 0.05
1.16ProMet: 1.16 ± 0.027
1.49ProAsn: 1.49 ± 0.029
2.206ProPro: 2.206 ± 0.038
1.704ProGln: 1.704 ± 0.031
2.52ProArg: 2.52 ± 0.035
2.941ProSer: 2.941 ± 0.038
2.506ProThr: 2.506 ± 0.038
3.923ProVal: 3.923 ± 0.045
0.665ProTrp: 0.665 ± 0.019
1.23ProTyr: 1.23 ± 0.027
0.0ProXaa: 0.0 ± 0.0
Gln
3.923GlnAla: 3.923 ± 0.044
0.207GlnCys: 0.207 ± 0.01
1.461GlnAsp: 1.461 ± 0.025
1.57GlnGlu: 1.57 ± 0.028
1.143GlnPhe: 1.143 ± 0.021
2.193GlnGly: 2.193 ± 0.034
0.666GlnHis: 0.666 ± 0.018
2.068GlnIle: 2.068 ± 0.061
1.379GlnLys: 1.379 ± 0.028
2.985GlnLeu: 2.985 ± 0.038
0.954GlnMet: 0.954 ± 0.024
1.005GlnAsn: 1.005 ± 0.022
1.816GlnPro: 1.816 ± 0.043
1.441GlnGln: 1.441 ± 0.041
2.324GlnArg: 2.324 ± 0.036
2.028GlnSer: 2.028 ± 0.037
1.909GlnThr: 1.909 ± 0.034
2.121GlnVal: 2.121 ± 0.049
0.428GlnTrp: 0.428 ± 0.013
0.703GlnTyr: 0.703 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
6.516ArgAla: 6.516 ± 0.065
0.516ArgCys: 0.516 ± 0.017
3.758ArgAsp: 3.758 ± 0.045
3.818ArgGlu: 3.818 ± 0.05
2.851ArgPhe: 2.851 ± 0.039
4.253ArgGly: 4.253 ± 0.047
1.671ArgHis: 1.671 ± 0.029
4.063ArgIle: 4.063 ± 0.049
2.587ArgLys: 2.587 ± 0.036
7.217ArgLeu: 7.217 ± 0.068
1.85ArgMet: 1.85 ± 0.029
2.107ArgAsn: 2.107 ± 0.031
3.173ArgPro: 3.173 ± 0.04
2.635ArgGln: 2.635 ± 0.037
5.118ArgArg: 5.118 ± 0.049
3.878ArgSer: 3.878 ± 0.045
3.121ArgThr: 3.121 ± 0.038
4.119ArgVal: 4.119 ± 0.046
0.9ArgTrp: 0.9 ± 0.019
1.765ArgTyr: 1.765 ± 0.029
0.0ArgXaa: 0.0 ± 0.0
Ser
6.477SerAla: 6.477 ± 0.068
0.462SerCys: 0.462 ± 0.014
3.331SerAsp: 3.331 ± 0.045
3.14SerGlu: 3.14 ± 0.044
2.643SerPhe: 2.643 ± 0.033
5.817SerGly: 5.817 ± 0.065
1.242SerHis: 1.242 ± 0.024
3.394SerIle: 3.394 ± 0.037
2.032SerLys: 2.032 ± 0.034
5.98SerLeu: 5.98 ± 0.062
1.465SerMet: 1.465 ± 0.025
1.777SerAsn: 1.777 ± 0.031
2.811SerPro: 2.811 ± 0.036
1.867SerGln: 1.867 ± 0.04
3.739SerArg: 3.739 ± 0.043
3.718SerSer: 3.718 ± 0.07
3.206SerThr: 3.206 ± 0.105
4.245SerVal: 4.245 ± 0.057
0.832SerTrp: 0.832 ± 0.022
1.454SerTyr: 1.454 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
6.158ThrAla: 6.158 ± 0.076
0.434ThrCys: 0.434 ± 0.016
2.961ThrAsp: 2.961 ± 0.06
2.787ThrGlu: 2.787 ± 0.041
2.147ThrPhe: 2.147 ± 0.037
4.816ThrGly: 4.816 ± 0.065
1.042ThrHis: 1.042 ± 0.024
3.409ThrIle: 3.409 ± 0.042
1.826ThrLys: 1.826 ± 0.031
5.52ThrLeu: 5.52 ± 0.063
1.282ThrMet: 1.282 ± 0.024
1.537ThrAsn: 1.537 ± 0.034
2.974ThrPro: 2.974 ± 0.032
1.535ThrGln: 1.535 ± 0.04
2.985ThrArg: 2.985 ± 0.039
3.211ThrSer: 3.211 ± 0.053
2.994ThrThr: 2.994 ± 0.054
4.259ThrVal: 4.259 ± 0.063
0.646ThrTrp: 0.646 ± 0.018
1.269ThrTyr: 1.269 ± 0.028
0.0ThrXaa: 0.0 ± 0.0
Val
8.434ValAla: 8.434 ± 0.071
0.651ValCys: 0.651 ± 0.019
4.048ValAsp: 4.048 ± 0.049
4.185ValGlu: 4.185 ± 0.048
2.8ValPhe: 2.8 ± 0.039
5.277ValGly: 5.277 ± 0.059
1.399ValHis: 1.399 ± 0.026
4.236ValIle: 4.236 ± 0.048
2.621ValLys: 2.621 ± 0.045
7.096ValLeu: 7.096 ± 0.06
1.773ValMet: 1.773 ± 0.034
2.079ValAsn: 2.079 ± 0.032
3.497ValPro: 3.497 ± 0.043
2.062ValGln: 2.062 ± 0.034
4.49ValArg: 4.49 ± 0.048
4.69ValSer: 4.69 ± 0.055
4.441ValThr: 4.441 ± 0.061
5.527ValVal: 5.527 ± 0.054
0.838ValTrp: 0.838 ± 0.023
1.502ValTyr: 1.502 ± 0.025
0.0ValXaa: 0.0 ± 0.0
Trp
1.134TrpAla: 1.134 ± 0.027
0.136TrpCys: 0.136 ± 0.008
0.628TrpAsp: 0.628 ± 0.018
0.572TrpGlu: 0.572 ± 0.017
0.562TrpPhe: 0.562 ± 0.018
0.849TrpGly: 0.849 ± 0.022
0.334TrpHis: 0.334 ± 0.013
0.732TrpIle: 0.732 ± 0.019
0.552TrpLys: 0.552 ± 0.016
1.604TrpLeu: 1.604 ± 0.034
0.373TrpMet: 0.373 ± 0.013
0.522TrpAsn: 0.522 ± 0.014
0.672TrpPro: 0.672 ± 0.018
0.587TrpGln: 0.587 ± 0.016
1.024TrpArg: 1.024 ± 0.022
0.876TrpSer: 0.876 ± 0.024
0.762TrpThr: 0.762 ± 0.022
0.736TrpVal: 0.736 ± 0.018
0.211TrpTrp: 0.211 ± 0.012
0.324TrpTyr: 0.324 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.484TyrAla: 2.484 ± 0.041
0.253TyrCys: 0.253 ± 0.011
1.522TyrAsp: 1.522 ± 0.026
1.291TyrGlu: 1.291 ± 0.027
1.058TyrPhe: 1.058 ± 0.022
2.195TyrGly: 2.195 ± 0.031
0.516TyrHis: 0.516 ± 0.014
1.098TyrIle: 1.098 ± 0.027
0.729TyrLys: 0.729 ± 0.019
2.423TyrLeu: 2.423 ± 0.034
0.481TyrMet: 0.481 ± 0.015
0.698TyrAsn: 0.698 ± 0.02
1.183TyrPro: 1.183 ± 0.026
0.784TyrGln: 0.784 ± 0.021
1.812TyrArg: 1.812 ± 0.029
1.321TyrSer: 1.321 ± 0.027
1.144TyrThr: 1.144 ± 0.029
1.727TyrVal: 1.727 ± 0.031
0.388TyrTrp: 0.388 ± 0.013
0.685TyrTyr: 0.685 ± 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 6922 proteins (2111068 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