Amino acid dipepetide frequency for Phormidium ambiguum IAM M-71

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
7.027AlaAla: 7.027 ± 0.067
0.77AlaCys: 0.77 ± 0.02
3.752AlaAsp: 3.752 ± 0.051
5.54AlaGlu: 5.54 ± 0.059
2.952AlaPhe: 2.952 ± 0.042
5.163AlaGly: 5.163 ± 0.072
1.167AlaHis: 1.167 ± 0.026
7.123AlaIle: 7.123 ± 0.073
4.569AlaLys: 4.569 ± 0.047
8.135AlaLeu: 8.135 ± 0.074
1.486AlaMet: 1.486 ± 0.026
3.792AlaAsn: 3.792 ± 0.065
2.627AlaPro: 2.627 ± 0.045
3.891AlaGln: 3.891 ± 0.053
3.242AlaArg: 3.242 ± 0.038
4.446AlaSer: 4.446 ± 0.066
4.584AlaThr: 4.584 ± 0.054
5.093AlaVal: 5.093 ± 0.05
1.011AlaTrp: 1.011 ± 0.025
2.176AlaTyr: 2.176 ± 0.035
0.0AlaXaa: 0.0 ± 0.0
Cys
0.606CysAla: 0.606 ± 0.017
0.175CysCys: 0.175 ± 0.009
0.556CysAsp: 0.556 ± 0.018
0.526CysGlu: 0.526 ± 0.016
0.414CysPhe: 0.414 ± 0.015
0.753CysGly: 0.753 ± 0.02
0.262CysHis: 0.262 ± 0.013
0.559CysIle: 0.559 ± 0.016
0.345CysLys: 0.345 ± 0.013
1.143CysLeu: 1.143 ± 0.028
0.143CysMet: 0.143 ± 0.008
0.383CysAsn: 0.383 ± 0.014
0.518CysPro: 0.518 ± 0.017
0.624CysGln: 0.624 ± 0.018
0.525CysArg: 0.525 ± 0.018
0.56CysSer: 0.56 ± 0.017
0.468CysThr: 0.468 ± 0.019
0.546CysVal: 0.546 ± 0.018
0.151CysTrp: 0.151 ± 0.008
0.369CysTyr: 0.369 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
3.389AspAla: 3.389 ± 0.034
0.508AspCys: 0.508 ± 0.016
2.263AspAsp: 2.263 ± 0.049
3.012AspGlu: 3.012 ± 0.047
2.307AspPhe: 2.307 ± 0.04
3.156AspGly: 3.156 ± 0.061
0.585AspHis: 0.585 ± 0.019
3.317AspIle: 3.317 ± 0.045
2.215AspLys: 2.215 ± 0.037
5.693AspLeu: 5.693 ± 0.068
0.708AspMet: 0.708 ± 0.019
2.002AspAsn: 2.002 ± 0.033
2.285AspPro: 2.285 ± 0.039
1.37AspGln: 1.37 ± 0.03
3.775AspArg: 3.775 ± 0.046
2.897AspSer: 2.897 ± 0.043
2.33AspThr: 2.33 ± 0.043
2.818AspVal: 2.818 ± 0.04
0.907AspTrp: 0.907 ± 0.024
1.86AspTyr: 1.86 ± 0.03
0.0AspXaa: 0.0 ± 0.0
Glu
5.383GluAla: 5.383 ± 0.064
0.477GluCys: 0.477 ± 0.016
2.648GluAsp: 2.648 ± 0.043
4.542GluGlu: 4.542 ± 0.055
2.692GluPhe: 2.692 ± 0.04
3.345GluGly: 3.345 ± 0.046
0.941GluHis: 0.941 ± 0.021
5.553GluIle: 5.553 ± 0.062
4.2GluLys: 4.2 ± 0.048
7.331GluLeu: 7.331 ± 0.064
1.394GluMet: 1.394 ± 0.024
3.265GluAsn: 3.265 ± 0.046
2.323GluPro: 2.323 ± 0.033
3.733GluGln: 3.733 ± 0.047
3.441GluArg: 3.441 ± 0.043
3.695GluSer: 3.695 ± 0.047
3.851GluThr: 3.851 ± 0.049
4.356GluVal: 4.356 ± 0.051
0.824GluTrp: 0.824 ± 0.023
1.889GluTyr: 1.889 ± 0.032
0.0GluXaa: 0.0 ± 0.0
Phe
3.111PheAla: 3.111 ± 0.036
0.565PheCys: 0.565 ± 0.016
2.237PheAsp: 2.237 ± 0.034
2.11PheGlu: 2.11 ± 0.031
1.785PhePhe: 1.785 ± 0.029
2.983PheGly: 2.983 ± 0.048
0.722PheHis: 0.722 ± 0.017
2.492PheIle: 2.492 ± 0.037
1.59PheLys: 1.59 ± 0.033
4.362PheLeu: 4.362 ± 0.059
0.662PheMet: 0.662 ± 0.018
1.997PheAsn: 1.997 ± 0.037
1.952PhePro: 1.952 ± 0.032
1.913PheGln: 1.913 ± 0.031
1.875PheArg: 1.875 ± 0.031
3.153PheSer: 3.153 ± 0.044
2.407PheThr: 2.407 ± 0.035
2.497PheVal: 2.497 ± 0.034
0.779PheTrp: 0.779 ± 0.021
1.42PheTyr: 1.42 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
4.553GlyAla: 4.553 ± 0.076
0.744GlyCys: 0.744 ± 0.021
3.137GlyAsp: 3.137 ± 0.058
4.319GlyGlu: 4.319 ± 0.048
2.889GlyPhe: 2.889 ± 0.04
4.646GlyGly: 4.646 ± 0.089
1.066GlyHis: 1.066 ± 0.029
5.222GlyIle: 5.222 ± 0.054
4.573GlyLys: 4.573 ± 0.06
6.508GlyLeu: 6.508 ± 0.071
1.379GlyMet: 1.379 ± 0.028
3.566GlyAsn: 3.566 ± 0.083
1.222GlyPro: 1.222 ± 0.029
2.747GlyGln: 2.747 ± 0.044
3.15GlyArg: 3.15 ± 0.043
3.877GlySer: 3.877 ± 0.056
3.868GlyThr: 3.868 ± 0.064
4.397GlyVal: 4.397 ± 0.044
1.076GlyTrp: 1.076 ± 0.025
2.344GlyTyr: 2.344 ± 0.041
0.0GlyXaa: 0.0 ± 0.0
His
0.96HisAla: 0.96 ± 0.023
0.248HisCys: 0.248 ± 0.012
0.681HisAsp: 0.681 ± 0.02
0.896HisGlu: 0.896 ± 0.022
0.812HisPhe: 0.812 ± 0.021
0.976HisGly: 0.976 ± 0.022
0.503HisHis: 0.503 ± 0.018
1.092HisIle: 1.092 ± 0.025
0.747HisLys: 0.747 ± 0.019
2.079HisLeu: 2.079 ± 0.038
0.143HisMet: 0.143 ± 0.008
0.712HisAsn: 0.712 ± 0.019
1.232HisPro: 1.232 ± 0.026
1.141HisGln: 1.141 ± 0.027
0.908HisArg: 0.908 ± 0.019
1.113HisSer: 1.113 ± 0.027
0.803HisThr: 0.803 ± 0.022
0.661HisVal: 0.661 ± 0.018
0.318HisTrp: 0.318 ± 0.013
0.618HisTyr: 0.618 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
7.061IleAla: 7.061 ± 0.064
0.791IleCys: 0.791 ± 0.018
3.924IleAsp: 3.924 ± 0.047
4.598IleGlu: 4.598 ± 0.053
2.799IlePhe: 2.799 ± 0.042
4.628IleGly: 4.628 ± 0.057
1.231IleHis: 1.231 ± 0.025
4.302IleIle: 4.302 ± 0.054
3.442IleLys: 3.442 ± 0.048
7.098IleLeu: 7.098 ± 0.069
0.911IleMet: 0.911 ± 0.022
3.704IleAsn: 3.704 ± 0.064
3.685IlePro: 3.685 ± 0.049
3.125IleGln: 3.125 ± 0.039
3.242IleArg: 3.242 ± 0.042
4.9IleSer: 4.9 ± 0.052
4.083IleThr: 4.083 ± 0.052
4.608IleVal: 4.608 ± 0.05
1.019IleTrp: 1.019 ± 0.026
2.112IleTyr: 2.112 ± 0.032
0.0IleXaa: 0.0 ± 0.0
Lys
4.304LysAla: 4.304 ± 0.051
0.334LysCys: 0.334 ± 0.014
2.367LysAsp: 2.367 ± 0.038
3.376LysGlu: 3.376 ± 0.045
2.039LysPhe: 2.039 ± 0.033
2.934LysGly: 2.934 ± 0.045
0.829LysHis: 0.829 ± 0.021
3.854LysIle: 3.854 ± 0.044
2.609LysLys: 2.609 ± 0.037
5.893LysLeu: 5.893 ± 0.063
1.02LysMet: 1.02 ± 0.022
2.437LysAsn: 2.437 ± 0.037
2.468LysPro: 2.468 ± 0.034
2.952LysGln: 2.952 ± 0.041
2.449LysArg: 2.449 ± 0.039
3.219LysSer: 3.219 ± 0.043
3.071LysThr: 3.071 ± 0.047
3.477LysVal: 3.477 ± 0.052
0.6LysTrp: 0.6 ± 0.016
1.616LysTyr: 1.616 ± 0.026
0.0LysXaa: 0.0 ± 0.0
Leu
9.384LeuAla: 9.384 ± 0.067
0.988LeuCys: 0.988 ± 0.023
5.1LeuAsp: 5.1 ± 0.054
7.38LeuGlu: 7.38 ± 0.071
3.991LeuPhe: 3.991 ± 0.047
7.334LeuGly: 7.334 ± 0.065
1.759LeuHis: 1.759 ± 0.034
7.529LeuIle: 7.529 ± 0.077
5.797LeuLys: 5.797 ± 0.067
11.347LeuLeu: 11.347 ± 0.11
2.052LeuMet: 2.052 ± 0.038
4.931LeuAsn: 4.931 ± 0.061
5.764LeuPro: 5.764 ± 0.067
5.5LeuGln: 5.5 ± 0.064
5.504LeuArg: 5.504 ± 0.056
7.31LeuSer: 7.31 ± 0.061
6.487LeuThr: 6.487 ± 0.067
6.949LeuVal: 6.949 ± 0.068
1.438LeuTrp: 1.438 ± 0.034
2.696LeuTyr: 2.696 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
1.585MetAla: 1.585 ± 0.027
0.101MetCys: 0.101 ± 0.008
0.672MetAsp: 0.672 ± 0.02
1.056MetGlu: 1.056 ± 0.025
0.565MetPhe: 0.565 ± 0.018
1.283MetGly: 1.283 ± 0.028
0.214MetHis: 0.214 ± 0.01
1.072MetIle: 1.072 ± 0.024
1.009MetLys: 1.009 ± 0.021
1.852MetLeu: 1.852 ± 0.035
0.404MetMet: 0.404 ± 0.014
0.891MetAsn: 0.891 ± 0.018
0.888MetPro: 0.888 ± 0.023
0.944MetGln: 0.944 ± 0.021
0.93MetArg: 0.93 ± 0.024
1.291MetSer: 1.291 ± 0.027
1.133MetThr: 1.133 ± 0.025
1.127MetVal: 1.127 ± 0.024
0.154MetTrp: 0.154 ± 0.009
0.353MetTyr: 0.353 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
3.227AsnAla: 3.227 ± 0.054
0.524AsnCys: 0.524 ± 0.016
1.979AsnAsp: 1.979 ± 0.049
2.191AsnGlu: 2.191 ± 0.035
2.193AsnPhe: 2.193 ± 0.038
3.008AsnGly: 3.008 ± 0.065
0.879AsnHis: 0.879 ± 0.022
3.068AsnIle: 3.068 ± 0.057
1.941AsnLys: 1.941 ± 0.03
6.234AsnLeu: 6.234 ± 0.085
0.68AsnMet: 0.68 ± 0.016
2.524AsnAsn: 2.524 ± 0.057
3.033AsnPro: 3.033 ± 0.044
3.171AsnGln: 3.171 ± 0.043
2.453AsnArg: 2.453 ± 0.035
3.641AsnSer: 3.641 ± 0.062
2.455AsnThr: 2.455 ± 0.048
2.404AsnVal: 2.404 ± 0.04
0.88AsnTrp: 0.88 ± 0.021
1.761AsnTyr: 1.761 ± 0.032
0.0AsnXaa: 0.0 ± 0.0
Pro
3.112ProAla: 3.112 ± 0.048
0.343ProCys: 0.343 ± 0.013
2.798ProAsp: 2.798 ± 0.042
4.149ProGlu: 4.149 ± 0.049
1.786ProPhe: 1.786 ± 0.03
2.964ProGly: 2.964 ± 0.042
0.795ProHis: 0.795 ± 0.023
3.281ProIle: 3.281 ± 0.046
2.351ProLys: 2.351 ± 0.034
4.478ProLeu: 4.478 ± 0.051
0.686ProMet: 0.686 ± 0.019
2.534ProAsn: 2.534 ± 0.039
2.278ProPro: 2.278 ± 0.052
2.406ProGln: 2.406 ± 0.046
1.585ProArg: 1.585 ± 0.029
2.714ProSer: 2.714 ± 0.043
2.838ProThr: 2.838 ± 0.045
3.199ProVal: 3.199 ± 0.043
0.569ProTrp: 0.569 ± 0.019
1.272ProTyr: 1.272 ± 0.026
0.0ProXaa: 0.0 ± 0.0
Gln
4.408GlnAla: 4.408 ± 0.058
0.331GlnCys: 0.331 ± 0.014
1.861GlnAsp: 1.861 ± 0.033
3.777GlnGlu: 3.777 ± 0.047
1.823GlnPhe: 1.823 ± 0.027
3.132GlnGly: 3.132 ± 0.047
0.808GlnHis: 0.808 ± 0.022
4.048GlnIle: 4.048 ± 0.041
3.171GlnLys: 3.171 ± 0.041
5.899GlnLeu: 5.899 ± 0.063
1.067GlnMet: 1.067 ± 0.026
2.388GlnAsn: 2.388 ± 0.036
2.496GlnPro: 2.496 ± 0.049
3.644GlnGln: 3.644 ± 0.066
2.693GlnArg: 2.693 ± 0.04
2.975GlnSer: 2.975 ± 0.042
3.044GlnThr: 3.044 ± 0.047
3.587GlnVal: 3.587 ± 0.041
0.651GlnTrp: 0.651 ± 0.018
1.195GlnTyr: 1.195 ± 0.025
0.0GlnXaa: 0.0 ± 0.0
Arg
3.008ArgAla: 3.008 ± 0.041
0.507ArgCys: 0.507 ± 0.019
2.385ArgAsp: 2.385 ± 0.039
3.419ArgGlu: 3.419 ± 0.044
2.195ArgPhe: 2.195 ± 0.036
2.866ArgGly: 2.866 ± 0.041
0.87ArgHis: 0.87 ± 0.023
3.554ArgIle: 3.554 ± 0.044
2.49ArgLys: 2.49 ± 0.034
5.641ArgLeu: 5.641 ± 0.059
0.952ArgMet: 0.952 ± 0.02
2.263ArgAsn: 2.263 ± 0.034
1.932ArgPro: 1.932 ± 0.037
3.235ArgGln: 3.235 ± 0.044
2.963ArgArg: 2.963 ± 0.044
3.271ArgSer: 3.271 ± 0.04
2.58ArgThr: 2.58 ± 0.038
3.182ArgVal: 3.182 ± 0.043
0.815ArgTrp: 0.815 ± 0.022
1.837ArgTyr: 1.837 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
4.555SerAla: 4.555 ± 0.061
0.584SerCys: 0.584 ± 0.017
3.204SerAsp: 3.204 ± 0.04
4.024SerGlu: 4.024 ± 0.051
2.633SerPhe: 2.633 ± 0.039
4.645SerGly: 4.645 ± 0.061
1.222SerHis: 1.222 ± 0.023
3.998SerIle: 3.998 ± 0.042
2.785SerLys: 2.785 ± 0.041
7.475SerLeu: 7.475 ± 0.059
1.111SerMet: 1.111 ± 0.026
2.996SerAsn: 2.996 ± 0.044
3.374SerPro: 3.374 ± 0.045
3.647SerGln: 3.647 ± 0.049
3.017SerArg: 3.017 ± 0.037
4.283SerSer: 4.283 ± 0.06
3.427SerThr: 3.427 ± 0.047
3.953SerVal: 3.953 ± 0.044
0.951SerTrp: 0.951 ± 0.023
1.767SerTyr: 1.767 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
4.709ThrAla: 4.709 ± 0.049
0.46ThrCys: 0.46 ± 0.016
2.58ThrAsp: 2.58 ± 0.036
3.733ThrGlu: 3.733 ± 0.049
2.211ThrPhe: 2.211 ± 0.032
4.365ThrGly: 4.365 ± 0.069
0.907ThrHis: 0.907 ± 0.023
4.095ThrIle: 4.095 ± 0.049
2.619ThrLys: 2.619 ± 0.038
6.177ThrLeu: 6.177 ± 0.069
0.752ThrMet: 0.752 ± 0.022
2.726ThrAsn: 2.726 ± 0.048
3.364ThrPro: 3.364 ± 0.048
2.8ThrGln: 2.8 ± 0.037
2.261ThrArg: 2.261 ± 0.031
3.406ThrSer: 3.406 ± 0.044
3.519ThrThr: 3.519 ± 0.065
3.899ThrVal: 3.899 ± 0.054
0.715ThrTrp: 0.715 ± 0.02
1.54ThrTyr: 1.54 ± 0.028
0.0ThrXaa: 0.0 ± 0.0
Val
5.331ValAla: 5.331 ± 0.06
0.622ValCys: 0.622 ± 0.017
3.163ValAsp: 3.163 ± 0.042
4.438ValGlu: 4.438 ± 0.051
2.575ValPhe: 2.575 ± 0.034
4.229ValGly: 4.229 ± 0.055
0.912ValHis: 0.912 ± 0.023
4.449ValIle: 4.449 ± 0.046
3.426ValLys: 3.426 ± 0.046
6.338ValLeu: 6.338 ± 0.053
1.245ValMet: 1.245 ± 0.026
3.16ValAsn: 3.16 ± 0.045
2.821ValPro: 2.821 ± 0.038
2.73ValGln: 2.73 ± 0.041
3.116ValArg: 3.116 ± 0.042
4.126ValSer: 4.126 ± 0.057
3.824ValThr: 3.824 ± 0.047
4.455ValVal: 4.455 ± 0.055
0.844ValTrp: 0.844 ± 0.022
1.816ValTyr: 1.816 ± 0.026
0.0ValXaa: 0.0 ± 0.0
Trp
0.872TrpAla: 0.872 ± 0.022
0.168TrpCys: 0.168 ± 0.01
0.662TrpAsp: 0.662 ± 0.019
1.003TrpGlu: 1.003 ± 0.023
0.59TrpPhe: 0.59 ± 0.018
0.946TrpGly: 0.946 ± 0.023
0.315TrpHis: 0.315 ± 0.014
0.906TrpIle: 0.906 ± 0.023
0.672TrpLys: 0.672 ± 0.02
1.896TrpLeu: 1.896 ± 0.038
0.322TrpMet: 0.322 ± 0.012
0.667TrpAsn: 0.667 ± 0.02
0.323TrpPro: 0.323 ± 0.014
1.287TrpGln: 1.287 ± 0.027
0.815TrpArg: 0.815 ± 0.02
0.825TrpSer: 0.825 ± 0.02
0.606TrpThr: 0.606 ± 0.018
0.926TrpVal: 0.926 ± 0.026
0.255TrpTrp: 0.255 ± 0.012
0.435TrpTyr: 0.435 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.961TyrAla: 1.961 ± 0.032
0.39TyrCys: 0.39 ± 0.015
1.427TyrAsp: 1.427 ± 0.034
1.791TyrGlu: 1.791 ± 0.028
1.363TyrPhe: 1.363 ± 0.029
1.925TyrGly: 1.925 ± 0.037
0.657TyrHis: 0.657 ± 0.019
1.751TyrIle: 1.751 ± 0.033
1.296TyrLys: 1.296 ± 0.027
3.66TyrLeu: 3.66 ± 0.048
0.404TyrMet: 0.404 ± 0.016
1.311TyrAsn: 1.311 ± 0.028
1.554TyrPro: 1.554 ± 0.026
2.137TyrGln: 2.137 ± 0.033
2.019TyrArg: 2.019 ± 0.034
1.95TyrSer: 1.95 ± 0.031
1.46TyrThr: 1.46 ± 0.029
1.488TyrVal: 1.488 ± 0.03
0.533TyrTrp: 0.533 ± 0.019
1.107TyrTyr: 1.107 ± 0.025
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 6148 proteins (2062752 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