Amino acid dipepetide frequency for Rhodococcus sp. MEB064

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
18.507AlaAla: 18.507 ± 0.188
0.883AlaCys: 0.883 ± 0.03
8.695AlaAsp: 8.695 ± 0.091
7.182AlaGlu: 7.182 ± 0.085
3.496AlaPhe: 3.496 ± 0.059
11.052AlaGly: 11.052 ± 0.093
2.392AlaHis: 2.392 ± 0.048
4.642AlaIle: 4.642 ± 0.064
2.522AlaLys: 2.522 ± 0.052
13.257AlaLeu: 13.257 ± 0.125
2.78AlaMet: 2.78 ± 0.049
2.009AlaAsn: 2.009 ± 0.042
5.942AlaPro: 5.942 ± 0.086
3.223AlaGln: 3.223 ± 0.057
8.695AlaArg: 8.695 ± 0.096
7.313AlaSer: 7.313 ± 0.077
7.34AlaThr: 7.34 ± 0.085
12.866AlaVal: 12.866 ± 0.119
1.514AlaTrp: 1.514 ± 0.035
2.253AlaTyr: 2.253 ± 0.04
0.0AlaXaa: 0.0 ± 0.0
Cys
0.908CysAla: 0.908 ± 0.029
0.082CysCys: 0.082 ± 0.009
0.463CysAsp: 0.463 ± 0.019
0.34CysGlu: 0.34 ± 0.017
0.198CysPhe: 0.198 ± 0.014
0.791CysGly: 0.791 ± 0.023
0.14CysHis: 0.14 ± 0.011
0.277CysIle: 0.277 ± 0.015
0.092CysLys: 0.092 ± 0.01
0.538CysLeu: 0.538 ± 0.02
0.107CysMet: 0.107 ± 0.009
0.134CysAsn: 0.134 ± 0.01
0.384CysPro: 0.384 ± 0.019
0.116CysGln: 0.116 ± 0.009
0.477CysArg: 0.477 ± 0.022
0.502CysSer: 0.502 ± 0.02
0.45CysThr: 0.45 ± 0.019
0.603CysVal: 0.603 ± 0.026
0.086CysTrp: 0.086 ± 0.008
0.119CysTyr: 0.119 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
9.311AspAla: 9.311 ± 0.106
0.386AspCys: 0.386 ± 0.015
5.068AspAsp: 5.068 ± 0.08
4.103AspGlu: 4.103 ± 0.066
1.746AspPhe: 1.746 ± 0.035
6.444AspGly: 6.444 ± 0.093
1.554AspHis: 1.554 ± 0.044
2.911AspIle: 2.911 ± 0.05
1.343AspLys: 1.343 ± 0.038
6.705AspLeu: 6.705 ± 0.069
1.03AspMet: 1.03 ± 0.031
1.102AspAsn: 1.102 ± 0.03
4.387AspPro: 4.387 ± 0.061
1.655AspGln: 1.655 ± 0.048
5.109AspArg: 5.109 ± 0.071
3.545AspSer: 3.545 ± 0.051
3.987AspThr: 3.987 ± 0.054
6.444AspVal: 6.444 ± 0.076
0.862AspTrp: 0.862 ± 0.031
1.296AspTyr: 1.296 ± 0.034
0.0AspXaa: 0.0 ± 0.0
Glu
5.652GluAla: 5.652 ± 0.078
0.344GluCys: 0.344 ± 0.017
2.745GluAsp: 2.745 ± 0.053
2.362GluGlu: 2.362 ± 0.051
1.743GluPhe: 1.743 ± 0.039
3.476GluGly: 3.476 ± 0.057
1.462GluHis: 1.462 ± 0.036
2.543GluIle: 2.543 ± 0.043
1.607GluLys: 1.607 ± 0.043
5.787GluLeu: 5.787 ± 0.076
1.16GluMet: 1.16 ± 0.031
1.418GluAsn: 1.418 ± 0.032
2.789GluPro: 2.789 ± 0.052
1.965GluGln: 1.965 ± 0.042
4.526GluArg: 4.526 ± 0.068
3.463GluSer: 3.463 ± 0.058
2.881GluThr: 2.881 ± 0.045
4.27GluVal: 4.27 ± 0.06
0.846GluTrp: 0.846 ± 0.025
1.147GluTyr: 1.147 ± 0.028
0.0GluXaa: 0.0 ± 0.0
Phe
3.929PheAla: 3.929 ± 0.06
0.252PheCys: 0.252 ± 0.013
2.592PheAsp: 2.592 ± 0.049
1.621PheGlu: 1.621 ± 0.039
0.972PhePhe: 0.972 ± 0.03
3.44PheGly: 3.44 ± 0.064
0.611PheHis: 0.611 ± 0.022
0.847PheIle: 0.847 ± 0.028
0.427PheLys: 0.427 ± 0.022
2.704PheLeu: 2.704 ± 0.055
0.453PheMet: 0.453 ± 0.019
0.533PheAsn: 0.533 ± 0.021
1.421PhePro: 1.421 ± 0.036
0.663PheGln: 0.663 ± 0.018
1.846PheArg: 1.846 ± 0.036
1.802PheSer: 1.802 ± 0.039
2.01PheThr: 2.01 ± 0.04
2.937PheVal: 2.937 ± 0.056
0.41PheTrp: 0.41 ± 0.019
0.694PheTyr: 0.694 ± 0.024
0.0PheXaa: 0.0 ± 0.0
Gly
10.188GlyAla: 10.188 ± 0.116
0.68GlyCys: 0.68 ± 0.028
5.386GlyAsp: 5.386 ± 0.066
4.348GlyGlu: 4.348 ± 0.066
3.004GlyPhe: 3.004 ± 0.053
7.591GlyGly: 7.591 ± 0.099
2.01GlyHis: 2.01 ± 0.042
4.394GlyIle: 4.394 ± 0.068
2.225GlyLys: 2.225 ± 0.05
8.362GlyLeu: 8.362 ± 0.09
1.956GlyMet: 1.956 ± 0.04
1.714GlyAsn: 1.714 ± 0.042
4.25GlyPro: 4.25 ± 0.058
2.215GlyGln: 2.215 ± 0.051
6.541GlyArg: 6.541 ± 0.067
6.073GlySer: 6.073 ± 0.068
6.011GlyThr: 6.011 ± 0.072
8.021GlyVal: 8.021 ± 0.088
1.505GlyTrp: 1.505 ± 0.038
2.143GlyTyr: 2.143 ± 0.048
0.0GlyXaa: 0.0 ± 0.0
His
2.347HisAla: 2.347 ± 0.046
0.17HisCys: 0.17 ± 0.012
1.457HisAsp: 1.457 ± 0.038
1.082HisGlu: 1.082 ± 0.028
0.647HisPhe: 0.647 ± 0.023
2.081HisGly: 2.081 ± 0.045
0.651HisHis: 0.651 ± 0.026
0.775HisIle: 0.775 ± 0.026
0.311HisLys: 0.311 ± 0.016
2.093HisLeu: 2.093 ± 0.052
0.367HisMet: 0.367 ± 0.017
0.348HisAsn: 0.348 ± 0.018
1.501HisPro: 1.501 ± 0.034
0.532HisGln: 0.532 ± 0.023
1.784HisArg: 1.784 ± 0.041
1.112HisSer: 1.112 ± 0.031
1.139HisThr: 1.139 ± 0.031
1.835HisVal: 1.835 ± 0.041
0.293HisTrp: 0.293 ± 0.015
0.445HisTyr: 0.445 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
6.184IleAla: 6.184 ± 0.079
0.285IleCys: 0.285 ± 0.015
3.628IleAsp: 3.628 ± 0.058
2.601IleGlu: 2.601 ± 0.045
1.031IlePhe: 1.031 ± 0.03
4.469IleGly: 4.469 ± 0.068
0.715IleHis: 0.715 ± 0.023
1.366IleIle: 1.366 ± 0.038
0.723IleLys: 0.723 ± 0.027
3.283IleLeu: 3.283 ± 0.058
0.629IleMet: 0.629 ± 0.022
0.799IleAsn: 0.799 ± 0.027
2.118IlePro: 2.118 ± 0.044
0.744IleGln: 0.744 ± 0.028
2.414IleArg: 2.414 ± 0.047
2.226IleSer: 2.226 ± 0.04
2.816IleThr: 2.816 ± 0.048
4.198IleVal: 4.198 ± 0.061
0.382IleTrp: 0.382 ± 0.02
0.669IleTyr: 0.669 ± 0.022
0.0IleXaa: 0.0 ± 0.0
Lys
2.453LysAla: 2.453 ± 0.056
0.087LysCys: 0.087 ± 0.008
1.22LysAsp: 1.22 ± 0.037
0.959LysGlu: 0.959 ± 0.033
0.669LysPhe: 0.669 ± 0.025
1.569LysGly: 1.569 ± 0.041
0.439LysHis: 0.439 ± 0.017
1.0LysIle: 1.0 ± 0.032
0.775LysLys: 0.775 ± 0.036
1.873LysLeu: 1.873 ± 0.041
0.457LysMet: 0.457 ± 0.02
0.58LysAsn: 0.58 ± 0.022
1.093LysPro: 1.093 ± 0.033
0.602LysGln: 0.602 ± 0.021
1.378LysArg: 1.378 ± 0.033
1.295LysSer: 1.295 ± 0.035
1.273LysThr: 1.273 ± 0.036
1.772LysVal: 1.772 ± 0.041
0.269LysTrp: 0.269 ± 0.017
0.542LysTyr: 0.542 ± 0.021
0.0LysXaa: 0.0 ± 0.0
Leu
13.058LeuAla: 13.058 ± 0.098
0.702LeuCys: 0.702 ± 0.025
7.378LeuAsp: 7.378 ± 0.083
4.691LeuGlu: 4.691 ± 0.067
2.692LeuPhe: 2.692 ± 0.053
9.095LeuGly: 9.095 ± 0.097
1.896LeuHis: 1.896 ± 0.042
3.644LeuIle: 3.644 ± 0.065
1.488LeuLys: 1.488 ± 0.043
9.21LeuLeu: 9.21 ± 0.108
1.631LeuMet: 1.631 ± 0.034
1.601LeuAsn: 1.601 ± 0.034
5.271LeuPro: 5.271 ± 0.065
2.353LeuGln: 2.353 ± 0.042
7.173LeuArg: 7.173 ± 0.095
6.135LeuSer: 6.135 ± 0.074
6.438LeuThr: 6.438 ± 0.067
9.258LeuVal: 9.258 ± 0.098
1.129LeuTrp: 1.129 ± 0.033
1.67LeuTyr: 1.67 ± 0.037
0.0LeuXaa: 0.0 ± 0.0
Met
2.38MetAla: 2.38 ± 0.044
0.147MetCys: 0.147 ± 0.01
0.98MetAsp: 0.98 ± 0.031
0.71MetGlu: 0.71 ± 0.027
0.613MetPhe: 0.613 ± 0.022
1.42MetGly: 1.42 ± 0.041
0.46MetHis: 0.46 ± 0.02
0.971MetIle: 0.971 ± 0.027
0.447MetLys: 0.447 ± 0.021
1.884MetLeu: 1.884 ± 0.037
0.369MetMet: 0.369 ± 0.017
0.5MetAsn: 0.5 ± 0.018
1.086MetPro: 1.086 ± 0.029
0.525MetGln: 0.525 ± 0.02
1.458MetArg: 1.458 ± 0.037
1.773MetSer: 1.773 ± 0.036
1.987MetThr: 1.987 ± 0.042
1.718MetVal: 1.718 ± 0.041
0.234MetTrp: 0.234 ± 0.013
0.329MetTyr: 0.329 ± 0.018
0.0MetXaa: 0.0 ± 0.0
Asn
2.269AsnAla: 2.269 ± 0.045
0.148AsnCys: 0.148 ± 0.01
1.202AsnAsp: 1.202 ± 0.035
0.85AsnGlu: 0.85 ± 0.032
0.633AsnPhe: 0.633 ± 0.023
1.828AsnGly: 1.828 ± 0.043
0.394AsnHis: 0.394 ± 0.017
0.897AsnIle: 0.897 ± 0.027
0.436AsnLys: 0.436 ± 0.02
1.779AsnLeu: 1.779 ± 0.04
0.344AsnMet: 0.344 ± 0.02
0.458AsnAsn: 0.458 ± 0.022
1.363AsnPro: 1.363 ± 0.035
0.518AsnGln: 0.518 ± 0.027
1.184AsnArg: 1.184 ± 0.032
1.153AsnSer: 1.153 ± 0.033
1.189AsnThr: 1.189 ± 0.033
1.652AsnVal: 1.652 ± 0.034
0.285AsnTrp: 0.285 ± 0.015
0.488AsnTyr: 0.488 ± 0.02
0.0AsnXaa: 0.0 ± 0.0
Pro
6.375ProAla: 6.375 ± 0.102
0.233ProCys: 0.233 ± 0.014
4.353ProAsp: 4.353 ± 0.055
3.329ProGlu: 3.329 ± 0.057
1.624ProPhe: 1.624 ± 0.037
5.055ProGly: 5.055 ± 0.068
1.057ProHis: 1.057 ± 0.031
1.861ProIle: 1.861 ± 0.042
1.08ProLys: 1.08 ± 0.029
4.486ProLeu: 4.486 ± 0.074
1.011ProMet: 1.011 ± 0.03
1.038ProAsn: 1.038 ± 0.031
2.471ProPro: 2.471 ± 0.058
1.288ProGln: 1.288 ± 0.036
3.303ProArg: 3.303 ± 0.053
3.619ProSer: 3.619 ± 0.06
3.699ProThr: 3.699 ± 0.06
5.251ProVal: 5.251 ± 0.073
0.765ProTrp: 0.765 ± 0.025
1.054ProTyr: 1.054 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
2.716GlnAla: 2.716 ± 0.047
0.184GlnCys: 0.184 ± 0.014
1.348GlnAsp: 1.348 ± 0.03
1.119GlnGlu: 1.119 ± 0.033
0.912GlnPhe: 0.912 ± 0.029
1.865GlnGly: 1.865 ± 0.042
0.592GlnHis: 0.592 ± 0.021
1.264GlnIle: 1.264 ± 0.033
0.667GlnLys: 0.667 ± 0.023
2.649GlnLeu: 2.649 ± 0.056
0.592GlnMet: 0.592 ± 0.023
0.683GlnAsn: 0.683 ± 0.027
1.246GlnPro: 1.246 ± 0.032
1.019GlnGln: 1.019 ± 0.034
2.076GlnArg: 2.076 ± 0.046
1.488GlnSer: 1.488 ± 0.035
1.311GlnThr: 1.311 ± 0.034
2.232GlnVal: 2.232 ± 0.042
0.486GlnTrp: 0.486 ± 0.019
0.597GlnTyr: 0.597 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
8.273ArgAla: 8.273 ± 0.09
0.44ArgCys: 0.44 ± 0.02
4.471ArgAsp: 4.471 ± 0.059
3.877ArgGlu: 3.877 ± 0.055
2.237ArgPhe: 2.237 ± 0.041
5.303ArgGly: 5.303 ± 0.065
1.579ArgHis: 1.579 ± 0.038
3.559ArgIle: 3.559 ± 0.056
1.495ArgLys: 1.495 ± 0.043
6.763ArgLeu: 6.763 ± 0.085
1.815ArgMet: 1.815 ± 0.036
1.406ArgAsn: 1.406 ± 0.037
3.679ArgPro: 3.679 ± 0.055
1.815ArgGln: 1.815 ± 0.042
6.708ArgArg: 6.708 ± 0.096
4.829ArgSer: 4.829 ± 0.067
5.125ArgThr: 5.125 ± 0.069
6.152ArgVal: 6.152 ± 0.067
1.208ArgTrp: 1.208 ± 0.029
1.668ArgTyr: 1.668 ± 0.042
0.0ArgXaa: 0.0 ± 0.0
Ser
7.93SerAla: 7.93 ± 0.087
0.399SerCys: 0.399 ± 0.019
4.116SerAsp: 4.116 ± 0.068
3.047SerGlu: 3.047 ± 0.053
1.9SerPhe: 1.9 ± 0.038
6.089SerGly: 6.089 ± 0.076
1.081SerHis: 1.081 ± 0.032
2.721SerIle: 2.721 ± 0.047
1.249SerLys: 1.249 ± 0.033
5.691SerLeu: 5.691 ± 0.068
1.708SerMet: 1.708 ± 0.036
1.147SerAsn: 1.147 ± 0.035
3.201SerPro: 3.201 ± 0.051
1.339SerGln: 1.339 ± 0.033
4.179SerArg: 4.179 ± 0.061
4.29SerSer: 4.29 ± 0.081
4.515SerThr: 4.515 ± 0.061
5.989SerVal: 5.989 ± 0.067
0.93SerTrp: 0.93 ± 0.027
1.326SerTyr: 1.326 ± 0.03
0.0SerXaa: 0.0 ± 0.0
Thr
8.341ThrAla: 8.341 ± 0.091
0.378ThrCys: 0.378 ± 0.018
4.37ThrAsp: 4.37 ± 0.073
3.399ThrGlu: 3.399 ± 0.054
2.09ThrPhe: 2.09 ± 0.04
6.142ThrGly: 6.142 ± 0.072
1.17ThrHis: 1.17 ± 0.029
2.453ThrIle: 2.453 ± 0.049
1.169ThrLys: 1.169 ± 0.032
6.157ThrLeu: 6.157 ± 0.072
1.246ThrMet: 1.246 ± 0.03
1.082ThrAsn: 1.082 ± 0.03
3.861ThrPro: 3.861 ± 0.066
1.306ThrGln: 1.306 ± 0.032
4.117ThrArg: 4.117 ± 0.058
4.149ThrSer: 4.149 ± 0.067
4.703ThrThr: 4.703 ± 0.077
7.262ThrVal: 7.262 ± 0.091
0.937ThrTrp: 0.937 ± 0.027
1.36ThrTyr: 1.36 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
11.989ValAla: 11.989 ± 0.104
0.715ValCys: 0.715 ± 0.024
7.249ValAsp: 7.249 ± 0.087
4.931ValGlu: 4.931 ± 0.062
2.732ValPhe: 2.732 ± 0.053
7.959ValGly: 7.959 ± 0.089
2.09ValHis: 2.09 ± 0.042
3.771ValIle: 3.771 ± 0.062
1.576ValLys: 1.576 ± 0.037
9.836ValLeu: 9.836 ± 0.093
1.736ValMet: 1.736 ± 0.042
1.721ValAsn: 1.721 ± 0.04
5.08ValPro: 5.08 ± 0.071
2.179ValGln: 2.179 ± 0.046
6.713ValArg: 6.713 ± 0.081
5.773ValSer: 5.773 ± 0.072
6.579ValThr: 6.579 ± 0.075
10.58ValVal: 10.58 ± 0.108
1.05ValTrp: 1.05 ± 0.029
1.511ValTyr: 1.511 ± 0.034
0.0ValXaa: 0.0 ± 0.0
Trp
1.452TrpAla: 1.452 ± 0.039
0.132TrpCys: 0.132 ± 0.01
0.769TrpAsp: 0.769 ± 0.025
0.548TrpGlu: 0.548 ± 0.022
0.528TrpPhe: 0.528 ± 0.022
0.986TrpGly: 0.986 ± 0.026
0.329TrpHis: 0.329 ± 0.015
0.698TrpIle: 0.698 ± 0.026
0.341TrpLys: 0.341 ± 0.016
1.366TrpLeu: 1.366 ± 0.038
0.333TrpMet: 0.333 ± 0.017
0.399TrpAsn: 0.399 ± 0.018
0.698TrpPro: 0.698 ± 0.025
0.464TrpGln: 0.464 ± 0.022
1.041TrpArg: 1.041 ± 0.031
1.055TrpSer: 1.055 ± 0.028
1.018TrpThr: 1.018 ± 0.028
1.062TrpVal: 1.062 ± 0.029
0.341TrpTrp: 0.341 ± 0.02
0.28TrpTyr: 0.28 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.299TyrAla: 2.299 ± 0.042
0.162TyrCys: 0.162 ± 0.012
1.498TyrAsp: 1.498 ± 0.04
1.084TyrGlu: 1.084 ± 0.03
0.7TyrPhe: 0.7 ± 0.026
1.96TyrGly: 1.96 ± 0.044
0.348TyrHis: 0.348 ± 0.018
0.688TyrIle: 0.688 ± 0.023
0.334TyrLys: 0.334 ± 0.018
2.091TyrLeu: 2.091 ± 0.044
0.265TyrMet: 0.265 ± 0.016
0.396TyrAsn: 0.396 ± 0.02
1.112TyrPro: 1.112 ± 0.034
0.523TyrGln: 0.523 ± 0.019
1.683TyrArg: 1.683 ± 0.037
1.253TyrSer: 1.253 ± 0.036
1.221TyrThr: 1.221 ± 0.036
1.669TyrVal: 1.669 ± 0.035
0.308TyrTrp: 0.308 ± 0.017
0.411TyrTyr: 0.411 ± 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 3865 proteins (1237203 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