Amino acid dipepetide frequency for Nitrosomonas sp. Nm58

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
9.379AlaAla: 9.379 ± 0.143
1.038AlaCys: 1.038 ± 0.042
4.549AlaAsp: 4.549 ± 0.077
5.603AlaGlu: 5.603 ± 0.083
3.489AlaPhe: 3.489 ± 0.069
6.814AlaGly: 6.814 ± 0.105
2.186AlaHis: 2.186 ± 0.053
6.449AlaIle: 6.449 ± 0.088
4.039AlaLys: 4.039 ± 0.08
10.093AlaLeu: 10.093 ± 0.131
2.44AlaMet: 2.44 ± 0.056
3.22AlaAsn: 3.22 ± 0.072
3.147AlaPro: 3.147 ± 0.056
3.776AlaGln: 3.776 ± 0.071
5.343AlaArg: 5.343 ± 0.082
5.15AlaSer: 5.15 ± 0.078
4.55AlaThr: 4.55 ± 0.074
6.03AlaVal: 6.03 ± 0.093
1.194AlaTrp: 1.194 ± 0.042
2.498AlaTyr: 2.498 ± 0.059
0.0AlaXaa: 0.0 ± 0.0
Cys
0.899CysAla: 0.899 ± 0.034
0.146CysCys: 0.146 ± 0.014
0.516CysAsp: 0.516 ± 0.026
0.552CysGlu: 0.552 ± 0.028
0.416CysPhe: 0.416 ± 0.022
0.902CysGly: 0.902 ± 0.037
0.355CysHis: 0.355 ± 0.024
0.595CysIle: 0.595 ± 0.026
0.399CysLys: 0.399 ± 0.022
0.985CysLeu: 0.985 ± 0.033
0.24CysMet: 0.24 ± 0.016
0.352CysAsn: 0.352 ± 0.02
0.489CysPro: 0.489 ± 0.023
0.39CysGln: 0.39 ± 0.021
0.62CysArg: 0.62 ± 0.028
0.649CysSer: 0.649 ± 0.026
0.501CysThr: 0.501 ± 0.024
0.622CysVal: 0.622 ± 0.026
0.152CysTrp: 0.152 ± 0.014
0.336CysTyr: 0.336 ± 0.019
0.0CysXaa: 0.0 ± 0.0
Asp
4.41AspAla: 4.41 ± 0.074
0.498AspCys: 0.498 ± 0.025
2.551AspAsp: 2.551 ± 0.067
3.374AspGlu: 3.374 ± 0.064
2.454AspPhe: 2.454 ± 0.058
3.386AspGly: 3.386 ± 0.075
1.277AspHis: 1.277 ± 0.042
3.585AspIle: 3.585 ± 0.067
2.588AspLys: 2.588 ± 0.064
5.286AspLeu: 5.286 ± 0.064
1.179AspMet: 1.179 ± 0.037
1.854AspAsn: 1.854 ± 0.053
2.485AspPro: 2.485 ± 0.055
2.02AspGln: 2.02 ± 0.046
2.914AspArg: 2.914 ± 0.057
2.869AspSer: 2.869 ± 0.053
2.737AspThr: 2.737 ± 0.057
3.159AspVal: 3.159 ± 0.065
0.905AspTrp: 0.905 ± 0.033
1.824AspTyr: 1.824 ± 0.05
0.0AspXaa: 0.0 ± 0.0
Glu
5.58GluAla: 5.58 ± 0.081
0.492GluCys: 0.492 ± 0.024
2.485GluAsp: 2.485 ± 0.063
3.677GluGlu: 3.677 ± 0.069
2.233GluPhe: 2.233 ± 0.054
3.505GluGly: 3.505 ± 0.064
1.509GluHis: 1.509 ± 0.046
4.957GluIle: 4.957 ± 0.078
3.549GluLys: 3.549 ± 0.069
6.249GluLeu: 6.249 ± 0.095
1.653GluMet: 1.653 ± 0.05
2.49GluAsn: 2.49 ± 0.061
1.993GluPro: 1.993 ± 0.045
3.084GluGln: 3.084 ± 0.061
3.966GluArg: 3.966 ± 0.075
3.468GluSer: 3.468 ± 0.064
3.124GluThr: 3.124 ± 0.062
3.714GluVal: 3.714 ± 0.079
0.848GluTrp: 0.848 ± 0.035
1.666GluTyr: 1.666 ± 0.042
0.0GluXaa: 0.0 ± 0.0
Phe
3.425PheAla: 3.425 ± 0.065
0.514PheCys: 0.514 ± 0.024
2.574PheAsp: 2.574 ± 0.055
2.295PheGlu: 2.295 ± 0.057
1.981PhePhe: 1.981 ± 0.059
3.012PheGly: 3.012 ± 0.063
0.991PheHis: 0.991 ± 0.031
2.672PheIle: 2.672 ± 0.055
1.582PheLys: 1.582 ± 0.047
3.856PheLeu: 3.856 ± 0.073
0.976PheMet: 0.976 ± 0.038
1.732PheAsn: 1.732 ± 0.051
1.737PhePro: 1.737 ± 0.037
1.363PheGln: 1.363 ± 0.042
2.078PheArg: 2.078 ± 0.041
3.044PheSer: 3.044 ± 0.06
2.183PheThr: 2.183 ± 0.057
2.588PheVal: 2.588 ± 0.065
0.564PheTrp: 0.564 ± 0.027
1.339PheTyr: 1.339 ± 0.049
0.0PheXaa: 0.0 ± 0.0
Gly
5.532GlyAla: 5.532 ± 0.093
0.883GlyCys: 0.883 ± 0.03
3.297GlyAsp: 3.297 ± 0.064
4.101GlyGlu: 4.101 ± 0.068
2.999GlyPhe: 2.999 ± 0.056
5.042GlyGly: 5.042 ± 0.114
1.715GlyHis: 1.715 ± 0.043
5.305GlyIle: 5.305 ± 0.077
4.028GlyLys: 4.028 ± 0.073
7.058GlyLeu: 7.058 ± 0.103
2.158GlyMet: 2.158 ± 0.047
2.726GlyAsn: 2.726 ± 0.062
1.907GlyPro: 1.907 ± 0.055
2.641GlyGln: 2.641 ± 0.058
3.929GlyArg: 3.929 ± 0.071
4.21GlySer: 4.21 ± 0.076
3.557GlyThr: 3.557 ± 0.067
4.929GlyVal: 4.929 ± 0.084
1.106GlyTrp: 1.106 ± 0.034
2.433GlyTyr: 2.433 ± 0.042
0.0GlyXaa: 0.0 ± 0.0
His
2.428HisAla: 2.428 ± 0.055
0.329HisCys: 0.329 ± 0.019
1.284HisAsp: 1.284 ± 0.034
1.425HisGlu: 1.425 ± 0.043
1.146HisPhe: 1.146 ± 0.037
1.869HisGly: 1.869 ± 0.058
0.888HisHis: 0.888 ± 0.041
1.59HisIle: 1.59 ± 0.04
0.958HisLys: 0.958 ± 0.036
2.65HisLeu: 2.65 ± 0.053
0.533HisMet: 0.533 ± 0.021
0.861HisAsn: 0.861 ± 0.033
1.472HisPro: 1.472 ± 0.046
1.037HisGln: 1.037 ± 0.04
1.409HisArg: 1.409 ± 0.043
1.436HisSer: 1.436 ± 0.036
1.208HisThr: 1.208 ± 0.035
1.43HisVal: 1.43 ± 0.038
0.353HisTrp: 0.353 ± 0.02
0.946HisTyr: 0.946 ± 0.036
0.0HisXaa: 0.0 ± 0.0
Ile
6.797IleAla: 6.797 ± 0.091
0.682IleCys: 0.682 ± 0.032
4.048IleAsp: 4.048 ± 0.073
4.59IleGlu: 4.59 ± 0.078
2.532IlePhe: 2.532 ± 0.05
4.899IleGly: 4.899 ± 0.083
1.645IleHis: 1.645 ± 0.042
4.131IleIle: 4.131 ± 0.084
3.281IleLys: 3.281 ± 0.062
6.521IleLeu: 6.521 ± 0.089
1.472IleMet: 1.472 ± 0.045
2.928IleAsn: 2.928 ± 0.062
3.376IlePro: 3.376 ± 0.057
2.465IleGln: 2.465 ± 0.053
3.703IleArg: 3.703 ± 0.072
4.44IleSer: 4.44 ± 0.075
3.866IleThr: 3.866 ± 0.073
4.348IleVal: 4.348 ± 0.073
0.727IleTrp: 0.727 ± 0.029
1.777IleTyr: 1.777 ± 0.045
0.0IleXaa: 0.0 ± 0.0
Lys
3.992LysAla: 3.992 ± 0.071
0.31LysCys: 0.31 ± 0.018
2.193LysAsp: 2.193 ± 0.051
3.027LysGlu: 3.027 ± 0.063
1.481LysPhe: 1.481 ± 0.043
2.725LysGly: 2.725 ± 0.056
1.155LysHis: 1.155 ± 0.036
3.39LysIle: 3.39 ± 0.064
2.645LysLys: 2.645 ± 0.064
5.143LysLeu: 5.143 ± 0.073
1.243LysMet: 1.243 ± 0.041
2.049LysAsn: 2.049 ± 0.053
2.21LysPro: 2.21 ± 0.05
2.379LysGln: 2.379 ± 0.054
2.993LysArg: 2.993 ± 0.059
2.807LysSer: 2.807 ± 0.054
2.623LysThr: 2.623 ± 0.057
2.868LysVal: 2.868 ± 0.054
0.572LysTrp: 0.572 ± 0.026
1.187LysTyr: 1.187 ± 0.041
0.0LysXaa: 0.0 ± 0.0
Leu
10.604LeuAla: 10.604 ± 0.125
1.099LeuCys: 1.099 ± 0.036
5.606LeuAsp: 5.606 ± 0.084
6.047LeuGlu: 6.047 ± 0.084
4.305LeuPhe: 4.305 ± 0.069
7.058LeuGly: 7.058 ± 0.096
2.582LeuHis: 2.582 ± 0.056
6.877LeuIle: 6.877 ± 0.106
4.983LeuLys: 4.983 ± 0.078
11.881LeuLeu: 11.881 ± 0.161
2.506LeuMet: 2.506 ± 0.058
3.998LeuAsn: 3.998 ± 0.069
5.698LeuPro: 5.698 ± 0.087
4.242LeuGln: 4.242 ± 0.078
6.221LeuArg: 6.221 ± 0.097
7.187LeuSer: 7.187 ± 0.091
6.023LeuThr: 6.023 ± 0.097
6.646LeuVal: 6.646 ± 0.099
1.315LeuTrp: 1.315 ± 0.055
2.69LeuTyr: 2.69 ± 0.049
0.0LeuXaa: 0.0 ± 0.0
Met
2.29MetAla: 2.29 ± 0.058
0.185MetCys: 0.185 ± 0.014
1.149MetAsp: 1.149 ± 0.04
1.322MetGlu: 1.322 ± 0.038
0.764MetPhe: 0.764 ± 0.028
1.622MetGly: 1.622 ± 0.044
0.6MetHis: 0.6 ± 0.029
1.639MetIle: 1.639 ± 0.042
1.296MetLys: 1.296 ± 0.034
2.932MetLeu: 2.932 ± 0.054
0.633MetMet: 0.633 ± 0.03
1.06MetAsn: 1.06 ± 0.033
1.258MetPro: 1.258 ± 0.038
1.193MetGln: 1.193 ± 0.039
1.577MetArg: 1.577 ± 0.042
1.57MetSer: 1.57 ± 0.042
1.554MetThr: 1.554 ± 0.042
1.621MetVal: 1.621 ± 0.045
0.176MetTrp: 0.176 ± 0.012
0.404MetTyr: 0.404 ± 0.025
0.0MetXaa: 0.0 ± 0.0
Asn
3.219AsnAla: 3.219 ± 0.07
0.375AsnCys: 0.375 ± 0.019
2.001AsnAsp: 2.001 ± 0.055
2.182AsnGlu: 2.182 ± 0.049
1.541AsnPhe: 1.541 ± 0.04
2.53AsnGly: 2.53 ± 0.061
0.977AsnHis: 0.977 ± 0.035
2.669AsnIle: 2.669 ± 0.054
1.831AsnLys: 1.831 ± 0.046
4.142AsnLeu: 4.142 ± 0.074
0.863AsnMet: 0.863 ± 0.032
1.609AsnAsn: 1.609 ± 0.054
2.267AsnPro: 2.267 ± 0.057
1.837AsnGln: 1.837 ± 0.048
2.231AsnArg: 2.231 ± 0.055
2.15AsnSer: 2.15 ± 0.059
1.994AsnThr: 1.994 ± 0.055
2.258AsnVal: 2.258 ± 0.051
0.571AsnTrp: 0.571 ± 0.031
1.162AsnTyr: 1.162 ± 0.036
0.0AsnXaa: 0.0 ± 0.0
Pro
3.943ProAla: 3.943 ± 0.063
0.387ProCys: 0.387 ± 0.019
2.886ProAsp: 2.886 ± 0.056
3.359ProGlu: 3.359 ± 0.069
1.864ProPhe: 1.864 ± 0.042
3.332ProGly: 3.332 ± 0.057
1.068ProHis: 1.068 ± 0.036
2.758ProIle: 2.758 ± 0.063
1.758ProLys: 1.758 ± 0.048
4.5ProLeu: 4.5 ± 0.083
1.024ProMet: 1.024 ± 0.033
1.643ProAsn: 1.643 ± 0.046
1.987ProPro: 1.987 ± 0.058
1.74ProGln: 1.74 ± 0.047
2.01ProArg: 2.01 ± 0.051
2.625ProSer: 2.625 ± 0.047
2.118ProThr: 2.118 ± 0.054
3.401ProVal: 3.401 ± 0.065
0.607ProTrp: 0.607 ± 0.026
1.316ProTyr: 1.316 ± 0.04
0.0ProXaa: 0.0 ± 0.0
Gln
4.234GlnAla: 4.234 ± 0.08
0.344GlnCys: 0.344 ± 0.021
1.755GlnAsp: 1.755 ± 0.047
2.402GlnGlu: 2.402 ± 0.054
1.525GlnPhe: 1.525 ± 0.039
2.795GlnGly: 2.795 ± 0.063
1.204GlnHis: 1.204 ± 0.036
2.804GlnIle: 2.804 ± 0.061
1.975GlnLys: 1.975 ± 0.049
4.648GlnLeu: 4.648 ± 0.08
1.013GlnMet: 1.013 ± 0.031
1.511GlnAsn: 1.511 ± 0.042
1.864GlnPro: 1.864 ± 0.057
2.307GlnGln: 2.307 ± 0.059
2.732GlnArg: 2.732 ± 0.07
2.547GlnSer: 2.547 ± 0.05
2.064GlnThr: 2.064 ± 0.049
2.76GlnVal: 2.76 ± 0.054
0.571GlnTrp: 0.571 ± 0.025
1.163GlnTyr: 1.163 ± 0.036
0.0GlnXaa: 0.0 ± 0.0
Arg
4.675ArgAla: 4.675 ± 0.08
0.574ArgCys: 0.574 ± 0.022
2.994ArgAsp: 2.994 ± 0.054
3.721ArgGlu: 3.721 ± 0.071
2.605ArgPhe: 2.605 ± 0.057
3.382ArgGly: 3.382 ± 0.057
1.575ArgHis: 1.575 ± 0.039
4.252ArgIle: 4.252 ± 0.077
2.883ArgLys: 2.883 ± 0.066
6.67ArgLeu: 6.67 ± 0.099
1.593ArgMet: 1.593 ± 0.042
2.351ArgAsn: 2.351 ± 0.051
2.156ArgPro: 2.156 ± 0.052
2.615ArgGln: 2.615 ± 0.051
3.48ArgArg: 3.48 ± 0.084
3.289ArgSer: 3.289 ± 0.062
2.684ArgThr: 2.684 ± 0.046
3.592ArgVal: 3.592 ± 0.063
0.87ArgTrp: 0.87 ± 0.033
2.111ArgTyr: 2.111 ± 0.05
0.0ArgXaa: 0.0 ± 0.0
Ser
5.324SerAla: 5.324 ± 0.079
0.651SerCys: 0.651 ± 0.028
3.091SerAsp: 3.091 ± 0.066
3.487SerGlu: 3.487 ± 0.063
2.51SerPhe: 2.51 ± 0.055
5.136SerGly: 5.136 ± 0.092
1.519SerHis: 1.519 ± 0.04
4.08SerIle: 4.08 ± 0.066
2.71SerLys: 2.71 ± 0.069
6.613SerLeu: 6.613 ± 0.089
1.485SerMet: 1.485 ± 0.043
2.324SerAsn: 2.324 ± 0.053
2.686SerPro: 2.686 ± 0.062
2.457SerGln: 2.457 ± 0.05
3.531SerArg: 3.531 ± 0.068
4.035SerSer: 4.035 ± 0.081
3.047SerThr: 3.047 ± 0.054
4.0SerVal: 4.0 ± 0.07
0.864SerTrp: 0.864 ± 0.028
1.713SerTyr: 1.713 ± 0.048
0.0SerXaa: 0.0 ± 0.0
Thr
4.751ThrAla: 4.751 ± 0.082
0.512ThrCys: 0.512 ± 0.026
2.799ThrAsp: 2.799 ± 0.062
2.98ThrGlu: 2.98 ± 0.06
1.986ThrPhe: 1.986 ± 0.046
4.277ThrGly: 4.277 ± 0.081
1.414ThrHis: 1.414 ± 0.036
3.435ThrIle: 3.435 ± 0.061
1.86ThrLys: 1.86 ± 0.053
6.27ThrLeu: 6.27 ± 0.091
1.085ThrMet: 1.085 ± 0.038
1.742ThrAsn: 1.742 ± 0.049
2.764ThrPro: 2.764 ± 0.055
2.221ThrGln: 2.221 ± 0.043
2.791ThrArg: 2.791 ± 0.056
3.101ThrSer: 3.101 ± 0.058
2.81ThrThr: 2.81 ± 0.075
3.806ThrVal: 3.806 ± 0.064
0.624ThrTrp: 0.624 ± 0.025
1.355ThrTyr: 1.355 ± 0.048
0.0ThrXaa: 0.0 ± 0.0
Val
6.054ValAla: 6.054 ± 0.09
0.602ValCys: 0.602 ± 0.026
3.442ValAsp: 3.442 ± 0.069
3.898ValGlu: 3.898 ± 0.08
2.683ValPhe: 2.683 ± 0.058
4.326ValGly: 4.326 ± 0.073
1.37ValHis: 1.37 ± 0.034
4.675ValIle: 4.675 ± 0.075
2.999ValLys: 2.999 ± 0.065
6.894ValLeu: 6.894 ± 0.088
1.854ValMet: 1.854 ± 0.046
2.533ValAsn: 2.533 ± 0.058
2.785ValPro: 2.785 ± 0.057
2.105ValGln: 2.105 ± 0.045
3.501ValArg: 3.501 ± 0.059
4.229ValSer: 4.229 ± 0.082
3.914ValThr: 3.914 ± 0.072
4.523ValVal: 4.523 ± 0.086
0.772ValTrp: 0.772 ± 0.029
1.774ValTyr: 1.774 ± 0.046
0.0ValXaa: 0.0 ± 0.0
Trp
0.894TrpAla: 0.894 ± 0.032
0.147TrpCys: 0.147 ± 0.013
0.605TrpAsp: 0.605 ± 0.029
0.662TrpGlu: 0.662 ± 0.027
0.595TrpPhe: 0.595 ± 0.025
0.807TrpGly: 0.807 ± 0.033
0.403TrpHis: 0.403 ± 0.021
0.871TrpIle: 0.871 ± 0.03
0.537TrpLys: 0.537 ± 0.026
1.926TrpLeu: 1.926 ± 0.047
0.358TrpMet: 0.358 ± 0.022
0.502TrpAsn: 0.502 ± 0.024
0.544TrpPro: 0.544 ± 0.027
0.849TrpGln: 0.849 ± 0.035
0.985TrpArg: 0.985 ± 0.039
0.776TrpSer: 0.776 ± 0.033
0.539TrpThr: 0.539 ± 0.028
0.938TrpVal: 0.938 ± 0.034
0.214TrpTrp: 0.214 ± 0.017
0.356TrpTyr: 0.356 ± 0.022
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.559TyrAla: 2.559 ± 0.065
0.347TyrCys: 0.347 ± 0.019
1.531TyrAsp: 1.531 ± 0.043
1.537TyrGlu: 1.537 ± 0.04
1.398TyrPhe: 1.398 ± 0.041
2.138TyrGly: 2.138 ± 0.051
0.815TyrHis: 0.815 ± 0.032
1.495TyrIle: 1.495 ± 0.041
1.09TyrLys: 1.09 ± 0.032
3.248TyrLeu: 3.248 ± 0.055
0.537TyrMet: 0.537 ± 0.023
0.923TyrAsn: 0.923 ± 0.036
1.5TyrPro: 1.5 ± 0.043
1.496TyrGln: 1.496 ± 0.043
2.058TyrArg: 2.058 ± 0.049
1.684TyrSer: 1.684 ± 0.042
1.486TyrThr: 1.486 ± 0.041
1.703TyrVal: 1.703 ± 0.039
0.503TyrTrp: 0.503 ± 0.028
1.004TyrTyr: 1.004 ± 0.037
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 3100 proteins (926182 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