Amino acid dipepetide frequency for Variovorax sp. PDC80

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
20.023AlaAla: 20.023 ± 0.148
1.273AlaCys: 1.273 ± 0.023
6.815AlaAsp: 6.815 ± 0.058
6.945AlaGlu: 6.945 ± 0.067
4.438AlaPhe: 4.438 ± 0.035
12.112AlaGly: 12.112 ± 0.126
2.763AlaHis: 2.763 ± 0.04
5.46AlaIle: 5.46 ± 0.053
3.617AlaLys: 3.617 ± 0.043
16.17AlaLeu: 16.17 ± 0.097
3.531AlaMet: 3.531 ± 0.034
2.973AlaAsn: 2.973 ± 0.053
7.347AlaPro: 7.347 ± 0.08
5.931AlaGln: 5.931 ± 0.057
10.381AlaArg: 10.381 ± 0.084
7.313AlaSer: 7.313 ± 0.068
6.497AlaThr: 6.497 ± 0.056
9.637AlaVal: 9.637 ± 0.077
2.045AlaTrp: 2.045 ± 0.033
2.519AlaTyr: 2.519 ± 0.031
0.0AlaXaa: 0.0 ± 0.0
Cys
1.139CysAla: 1.139 ± 0.019
0.111CysCys: 0.111 ± 0.006
0.485CysAsp: 0.485 ± 0.013
0.505CysGlu: 0.505 ± 0.014
0.285CysPhe: 0.285 ± 0.009
0.935CysGly: 0.935 ± 0.02
0.217CysHis: 0.217 ± 0.009
0.387CysIle: 0.387 ± 0.012
0.167CysLys: 0.167 ± 0.007
0.77CysLeu: 0.77 ± 0.017
0.19CysMet: 0.19 ± 0.008
0.215CysAsn: 0.215 ± 0.009
0.361CysPro: 0.361 ± 0.012
0.203CysGln: 0.203 ± 0.008
0.542CysArg: 0.542 ± 0.016
0.433CysSer: 0.433 ± 0.012
0.435CysThr: 0.435 ± 0.012
0.677CysVal: 0.677 ± 0.016
0.116CysTrp: 0.116 ± 0.006
0.163CysTyr: 0.163 ± 0.007
0.0CysXaa: 0.0 ± 0.0
Asp
7.92AspAla: 7.92 ± 0.077
0.422AspCys: 0.422 ± 0.014
2.628AspAsp: 2.628 ± 0.04
2.98AspGlu: 2.98 ± 0.038
2.121AspPhe: 2.121 ± 0.025
4.973AspGly: 4.973 ± 0.069
1.05AspHis: 1.05 ± 0.02
2.288AspIle: 2.288 ± 0.034
1.383AspLys: 1.383 ± 0.03
5.091AspLeu: 5.091 ± 0.044
1.098AspMet: 1.098 ± 0.021
1.161AspAsn: 1.161 ± 0.024
3.069AspPro: 3.069 ± 0.038
1.328AspGln: 1.328 ± 0.024
3.54AspArg: 3.54 ± 0.048
2.174AspSer: 2.174 ± 0.031
2.582AspThr: 2.582 ± 0.033
3.652AspVal: 3.652 ± 0.05
0.923AspTrp: 0.923 ± 0.019
1.327AspTyr: 1.327 ± 0.025
0.0AspXaa: 0.0 ± 0.0
Glu
7.599GluAla: 7.599 ± 0.069
0.32GluCys: 0.32 ± 0.012
2.167GluAsp: 2.167 ± 0.033
2.382GluGlu: 2.382 ± 0.034
1.621GluPhe: 1.621 ± 0.026
4.124GluGly: 4.124 ± 0.042
1.236GluHis: 1.236 ± 0.023
2.486GluIle: 2.486 ± 0.034
1.597GluLys: 1.597 ± 0.027
5.876GluLeu: 5.876 ± 0.054
1.13GluMet: 1.13 ± 0.02
1.143GluAsn: 1.143 ± 0.024
2.58GluPro: 2.58 ± 0.035
2.199GluGln: 2.199 ± 0.03
5.066GluArg: 5.066 ± 0.048
2.446GluSer: 2.446 ± 0.03
2.384GluThr: 2.384 ± 0.031
3.982GluVal: 3.982 ± 0.064
0.713GluTrp: 0.713 ± 0.017
0.913GluTyr: 0.913 ± 0.021
0.0GluXaa: 0.0 ± 0.0
Phe
4.641PheAla: 4.641 ± 0.04
0.357PheCys: 0.357 ± 0.012
2.61PheAsp: 2.61 ± 0.033
2.189PheGlu: 2.189 ± 0.029
1.304PhePhe: 1.304 ± 0.025
3.682PheGly: 3.682 ± 0.041
0.75PheHis: 0.75 ± 0.015
1.322PheIle: 1.322 ± 0.021
1.018PheLys: 1.018 ± 0.019
2.904PheLeu: 2.904 ± 0.036
0.733PheMet: 0.733 ± 0.018
1.017PheAsn: 1.017 ± 0.021
1.51PhePro: 1.51 ± 0.024
0.997PheGln: 0.997 ± 0.018
1.944PheArg: 1.944 ± 0.024
2.101PheSer: 2.101 ± 0.033
1.758PheThr: 1.758 ± 0.025
2.892PheVal: 2.892 ± 0.034
0.505PheTrp: 0.505 ± 0.014
0.806PheTyr: 0.806 ± 0.017
0.0PheXaa: 0.0 ± 0.0
Gly
10.779GlyAla: 10.779 ± 0.092
0.842GlyCys: 0.842 ± 0.019
4.141GlyAsp: 4.141 ± 0.062
4.591GlyGlu: 4.591 ± 0.047
3.53GlyPhe: 3.53 ± 0.044
8.164GlyGly: 8.164 ± 0.157
1.906GlyHis: 1.906 ± 0.024
4.148GlyIle: 4.148 ± 0.04
2.814GlyLys: 2.814 ± 0.04
9.364GlyLeu: 9.364 ± 0.09
2.201GlyMet: 2.201 ± 0.028
2.277GlyAsn: 2.277 ± 0.056
3.441GlyPro: 3.441 ± 0.04
3.227GlyGln: 3.227 ± 0.038
6.133GlyArg: 6.133 ± 0.063
5.053GlySer: 5.053 ± 0.078
5.06GlyThr: 5.06 ± 0.104
6.582GlyVal: 6.582 ± 0.054
1.545GlyTrp: 1.545 ± 0.027
2.37GlyTyr: 2.37 ± 0.031
0.0GlyXaa: 0.0 ± 0.0
His
2.999HisAla: 2.999 ± 0.037
0.256HisCys: 0.256 ± 0.009
1.214HisAsp: 1.214 ± 0.023
1.141HisGlu: 1.141 ± 0.024
0.827HisPhe: 0.827 ± 0.019
2.19HisGly: 2.19 ± 0.036
0.578HisHis: 0.578 ± 0.018
0.795HisIle: 0.795 ± 0.018
0.474HisLys: 0.474 ± 0.013
2.112HisLeu: 2.112 ± 0.034
0.468HisMet: 0.468 ± 0.012
0.424HisAsn: 0.424 ± 0.013
1.465HisPro: 1.465 ± 0.025
0.603HisGln: 0.603 ± 0.015
1.584HisArg: 1.584 ± 0.025
0.923HisSer: 0.923 ± 0.021
0.96HisThr: 0.96 ± 0.018
1.558HisVal: 1.558 ± 0.027
0.418HisTrp: 0.418 ± 0.013
0.582HisTyr: 0.582 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
6.773IleAla: 6.773 ± 0.052
0.346IleCys: 0.346 ± 0.012
3.201IleAsp: 3.201 ± 0.039
3.115IleGlu: 3.115 ± 0.036
1.107IlePhe: 1.107 ± 0.022
4.361IleGly: 4.361 ± 0.045
0.782IleHis: 0.782 ± 0.017
0.99IleIle: 0.99 ± 0.021
1.108IleLys: 1.108 ± 0.028
2.854IleLeu: 2.854 ± 0.036
0.574IleMet: 0.574 ± 0.015
1.15IleAsn: 1.15 ± 0.024
1.883IlePro: 1.883 ± 0.028
1.119IleGln: 1.119 ± 0.024
2.471IleArg: 2.471 ± 0.033
2.027IleSer: 2.027 ± 0.034
2.001IleThr: 2.001 ± 0.028
3.735IleVal: 3.735 ± 0.042
0.419IleTrp: 0.419 ± 0.013
0.885IleTyr: 0.885 ± 0.021
0.0IleXaa: 0.0 ± 0.0
Lys
3.677LysAla: 3.677 ± 0.045
0.123LysCys: 0.123 ± 0.007
1.433LysAsp: 1.433 ± 0.025
1.28LysGlu: 1.28 ± 0.025
0.813LysPhe: 0.813 ± 0.018
2.153LysGly: 2.153 ± 0.036
0.503LysHis: 0.503 ± 0.015
1.208LysIle: 1.208 ± 0.025
1.157LysLys: 1.157 ± 0.03
3.171LysLeu: 3.171 ± 0.043
0.593LysMet: 0.593 ± 0.015
0.8LysAsn: 0.8 ± 0.019
1.921LysPro: 1.921 ± 0.032
0.979LysGln: 0.979 ± 0.019
1.882LysArg: 1.882 ± 0.027
1.539LysSer: 1.539 ± 0.028
1.736LysThr: 1.736 ± 0.03
2.146LysVal: 2.146 ± 0.031
0.312LysTrp: 0.312 ± 0.011
0.573LysTyr: 0.573 ± 0.017
0.0LysXaa: 0.0 ± 0.0
Leu
16.003LeuAla: 16.003 ± 0.108
0.992LeuCys: 0.992 ± 0.018
5.829LeuAsp: 5.829 ± 0.051
5.183LeuGlu: 5.183 ± 0.049
3.439LeuPhe: 3.439 ± 0.042
9.233LeuGly: 9.233 ± 0.1
2.331LeuHis: 2.331 ± 0.03
3.917LeuIle: 3.917 ± 0.046
3.029LeuLys: 3.029 ± 0.041
11.47LeuLeu: 11.47 ± 0.129
2.357LeuMet: 2.357 ± 0.033
2.452LeuAsn: 2.452 ± 0.043
6.469LeuPro: 6.469 ± 0.069
3.957LeuGln: 3.957 ± 0.041
8.533LeuArg: 8.533 ± 0.068
6.213LeuSer: 6.213 ± 0.054
4.816LeuThr: 4.816 ± 0.048
8.173LeuVal: 8.173 ± 0.077
1.309LeuTrp: 1.309 ± 0.023
1.978LeuTyr: 1.978 ± 0.027
0.0LeuXaa: 0.0 ± 0.0
Met
3.024MetAla: 3.024 ± 0.035
0.148MetCys: 0.148 ± 0.008
0.933MetAsp: 0.933 ± 0.018
0.9MetGlu: 0.9 ± 0.021
0.666MetPhe: 0.666 ± 0.015
1.68MetGly: 1.68 ± 0.025
0.522MetHis: 0.522 ± 0.015
0.837MetIle: 0.837 ± 0.019
0.899MetLys: 0.899 ± 0.019
2.469MetLeu: 2.469 ± 0.036
0.465MetMet: 0.465 ± 0.013
0.812MetAsn: 0.812 ± 0.017
1.513MetPro: 1.513 ± 0.025
0.969MetGln: 0.969 ± 0.02
1.713MetArg: 1.713 ± 0.027
1.49MetSer: 1.49 ± 0.025
1.517MetThr: 1.517 ± 0.023
1.622MetVal: 1.622 ± 0.028
0.189MetTrp: 0.189 ± 0.008
0.344MetTyr: 0.344 ± 0.011
0.0MetXaa: 0.0 ± 0.0
Asn
3.343AsnAla: 3.343 ± 0.05
0.22AsnCys: 0.22 ± 0.009
1.274AsnAsp: 1.274 ± 0.026
1.091AsnGlu: 1.091 ± 0.021
0.931AsnPhe: 0.931 ± 0.019
2.337AsnGly: 2.337 ± 0.058
0.466AsnHis: 0.466 ± 0.013
1.061AsnIle: 1.061 ± 0.021
0.677AsnLys: 0.677 ± 0.017
2.483AsnLeu: 2.483 ± 0.038
0.511AsnMet: 0.511 ± 0.013
0.685AsnAsn: 0.685 ± 0.022
1.726AsnPro: 1.726 ± 0.027
0.738AsnGln: 0.738 ± 0.018
1.545AsnArg: 1.545 ± 0.03
1.089AsnSer: 1.089 ± 0.03
1.33AsnThr: 1.33 ± 0.03
1.871AsnVal: 1.871 ± 0.032
0.374AsnTrp: 0.374 ± 0.012
0.636AsnTyr: 0.636 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
8.188ProAla: 8.188 ± 0.078
0.307ProCys: 0.307 ± 0.011
3.019ProAsp: 3.019 ± 0.031
3.446ProGlu: 3.446 ± 0.04
1.868ProPhe: 1.868 ± 0.025
4.989ProGly: 4.989 ± 0.05
1.128ProHis: 1.128 ± 0.021
1.939ProIle: 1.939 ± 0.028
1.46ProLys: 1.46 ± 0.027
5.476ProLeu: 5.476 ± 0.049
1.363ProMet: 1.363 ± 0.032
1.228ProAsn: 1.228 ± 0.023
3.086ProPro: 3.086 ± 0.053
1.97ProGln: 1.97 ± 0.027
3.463ProArg: 3.463 ± 0.044
3.014ProSer: 3.014 ± 0.036
2.661ProThr: 2.661 ± 0.034
4.526ProVal: 4.526 ± 0.062
0.812ProTrp: 0.812 ± 0.021
1.218ProTyr: 1.218 ± 0.022
0.0ProXaa: 0.0 ± 0.0
Gln
5.35GlnAla: 5.35 ± 0.053
0.264GlnCys: 0.264 ± 0.011
1.392GlnAsp: 1.392 ± 0.025
1.349GlnGlu: 1.349 ± 0.022
1.123GlnPhe: 1.123 ± 0.02
3.041GlnGly: 3.041 ± 0.039
0.781GlnHis: 0.781 ± 0.018
1.56GlnIle: 1.56 ± 0.023
0.972GlnLys: 0.972 ± 0.02
3.989GlnLeu: 3.989 ± 0.043
0.821GlnMet: 0.821 ± 0.019
0.776GlnAsn: 0.776 ± 0.017
2.255GlnPro: 2.255 ± 0.034
1.79GlnGln: 1.79 ± 0.057
3.361GlnArg: 3.361 ± 0.04
1.911GlnSer: 1.911 ± 0.026
1.714GlnThr: 1.714 ± 0.027
2.785GlnVal: 2.785 ± 0.033
0.626GlnTrp: 0.626 ± 0.016
0.684GlnTyr: 0.684 ± 0.015
0.0GlnXaa: 0.0 ± 0.0
Arg
9.107ArgAla: 9.107 ± 0.069
0.599ArgCys: 0.599 ± 0.014
3.704ArgAsp: 3.704 ± 0.033
4.46ArgGlu: 4.46 ± 0.045
2.982ArgPhe: 2.982 ± 0.037
5.221ArgGly: 5.221 ± 0.051
1.984ArgHis: 1.984 ± 0.031
3.732ArgIle: 3.732 ± 0.042
1.923ArgLys: 1.923 ± 0.027
8.305ArgLeu: 8.305 ± 0.076
1.946ArgMet: 1.946 ± 0.031
1.734ArgAsn: 1.734 ± 0.028
3.581ArgPro: 3.581 ± 0.049
2.836ArgGln: 2.836 ± 0.035
5.752ArgArg: 5.752 ± 0.062
3.731ArgSer: 3.731 ± 0.038
3.584ArgThr: 3.584 ± 0.045
5.317ArgVal: 5.317 ± 0.046
1.279ArgTrp: 1.279 ± 0.025
1.806ArgTyr: 1.806 ± 0.03
0.0ArgXaa: 0.0 ± 0.0
Ser
6.724SerAla: 6.724 ± 0.056
0.389SerCys: 0.389 ± 0.013
2.493SerAsp: 2.493 ± 0.03
2.414SerGlu: 2.414 ± 0.034
2.221SerPhe: 2.221 ± 0.031
5.318SerGly: 5.318 ± 0.066
1.146SerHis: 1.146 ± 0.021
2.303SerIle: 2.303 ± 0.038
1.392SerLys: 1.392 ± 0.025
5.752SerLeu: 5.752 ± 0.05
1.275SerMet: 1.275 ± 0.025
1.332SerAsn: 1.332 ± 0.03
3.033SerPro: 3.033 ± 0.033
1.751SerGln: 1.751 ± 0.026
3.505SerArg: 3.505 ± 0.04
3.06SerSer: 3.06 ± 0.046
2.971SerThr: 2.971 ± 0.04
4.018SerVal: 4.018 ± 0.04
0.714SerTrp: 0.714 ± 0.017
1.345SerTyr: 1.345 ± 0.023
0.0SerXaa: 0.0 ± 0.0
Thr
6.239ThrAla: 6.239 ± 0.051
0.31ThrCys: 0.31 ± 0.011
2.338ThrAsp: 2.338 ± 0.031
2.229ThrGlu: 2.229 ± 0.033
1.534ThrPhe: 1.534 ± 0.025
4.853ThrGly: 4.853 ± 0.065
1.108ThrHis: 1.108 ± 0.021
1.969ThrIle: 1.969 ± 0.03
1.08ThrLys: 1.08 ± 0.022
6.436ThrLeu: 6.436 ± 0.069
0.991ThrMet: 0.991 ± 0.021
1.142ThrAsn: 1.142 ± 0.028
3.668ThrPro: 3.668 ± 0.04
1.828ThrGln: 1.828 ± 0.029
3.47ThrArg: 3.47 ± 0.037
2.58ThrSer: 2.58 ± 0.036
2.856ThrThr: 2.856 ± 0.051
4.462ThrVal: 4.462 ± 0.052
0.662ThrTrp: 0.662 ± 0.018
1.0ThrTyr: 1.0 ± 0.026
0.0ThrXaa: 0.0 ± 0.0
Val
10.2ValAla: 10.2 ± 0.072
0.698ValCys: 0.698 ± 0.017
4.103ValAsp: 4.103 ± 0.085
4.091ValGlu: 4.091 ± 0.076
2.799ValPhe: 2.799 ± 0.033
5.734ValGly: 5.734 ± 0.051
1.554ValHis: 1.554 ± 0.023
3.161ValIle: 3.161 ± 0.037
2.169ValLys: 2.169 ± 0.034
8.698ValLeu: 8.698 ± 0.088
1.664ValMet: 1.664 ± 0.029
2.036ValAsn: 2.036 ± 0.033
4.4ValPro: 4.4 ± 0.046
2.718ValGln: 2.718 ± 0.037
5.643ValArg: 5.643 ± 0.048
4.154ValSer: 4.154 ± 0.04
3.884ValThr: 3.884 ± 0.042
6.297ValVal: 6.297 ± 0.051
0.907ValTrp: 0.907 ± 0.019
1.584ValTyr: 1.584 ± 0.027
0.0ValXaa: 0.0 ± 0.0
Trp
1.364TrpAla: 1.364 ± 0.025
0.134TrpCys: 0.134 ± 0.008
0.59TrpAsp: 0.59 ± 0.015
0.537TrpGlu: 0.537 ± 0.014
0.549TrpPhe: 0.549 ± 0.013
1.029TrpGly: 1.029 ± 0.024
0.371TrpHis: 0.371 ± 0.011
0.639TrpIle: 0.639 ± 0.016
0.435TrpLys: 0.435 ± 0.013
2.027TrpLeu: 2.027 ± 0.032
0.404TrpMet: 0.404 ± 0.014
0.465TrpAsn: 0.465 ± 0.011
0.744TrpPro: 0.744 ± 0.019
0.691TrpGln: 0.691 ± 0.015
1.365TrpArg: 1.365 ± 0.023
0.842TrpSer: 0.842 ± 0.019
0.786TrpThr: 0.786 ± 0.018
0.954TrpVal: 0.954 ± 0.02
0.239TrpTrp: 0.239 ± 0.011
0.304TrpTyr: 0.304 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.698TyrAla: 2.698 ± 0.037
0.224TyrCys: 0.224 ± 0.008
1.342TyrAsp: 1.342 ± 0.047
1.135TyrGlu: 1.135 ± 0.019
0.883TyrPhe: 0.883 ± 0.018
2.041TyrGly: 2.041 ± 0.032
0.395TyrHis: 0.395 ± 0.011
0.698TyrIle: 0.698 ± 0.017
0.63TyrLys: 0.63 ± 0.016
2.265TyrLeu: 2.265 ± 0.027
0.396TyrMet: 0.396 ± 0.012
0.568TyrAsn: 0.568 ± 0.018
1.104TyrPro: 1.104 ± 0.021
0.713TyrGln: 0.713 ± 0.016
1.691TyrArg: 1.691 ± 0.028
1.066TyrSer: 1.066 ± 0.02
1.221TyrThr: 1.221 ± 0.027
1.608TyrVal: 1.608 ± 0.027
0.36TyrTrp: 0.36 ± 0.011
0.544TyrTyr: 0.544 ± 0.015
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 8068 proteins (2762521 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