Amino acid dipepetide frequency for Rhizobium sp. LC145

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
15.88AlaAla: 15.88 ± 0.148
0.881AlaCys: 0.881 ± 0.027
6.411AlaAsp: 6.411 ± 0.073
8.029AlaGlu: 8.029 ± 0.095
4.671AlaPhe: 4.671 ± 0.058
10.26AlaGly: 10.26 ± 0.093
1.975AlaHis: 1.975 ± 0.041
6.952AlaIle: 6.952 ± 0.069
4.224AlaLys: 4.224 ± 0.053
12.37AlaLeu: 12.37 ± 0.091
3.566AlaMet: 3.566 ± 0.051
2.919AlaAsn: 2.919 ± 0.039
4.646AlaPro: 4.646 ± 0.057
3.349AlaGln: 3.349 ± 0.054
7.781AlaArg: 7.781 ± 0.073
6.503AlaSer: 6.503 ± 0.065
5.668AlaThr: 5.668 ± 0.072
8.533AlaVal: 8.533 ± 0.075
1.345AlaTrp: 1.345 ± 0.027
2.547AlaTyr: 2.547 ± 0.041
0.0AlaXaa: 0.0 ± 0.0
Cys
0.804CysAla: 0.804 ± 0.023
0.087CysCys: 0.087 ± 0.007
0.449CysAsp: 0.449 ± 0.016
0.409CysGlu: 0.409 ± 0.018
0.323CysPhe: 0.323 ± 0.013
0.861CysGly: 0.861 ± 0.027
0.207CysHis: 0.207 ± 0.012
0.395CysIle: 0.395 ± 0.016
0.179CysLys: 0.179 ± 0.011
0.755CysLeu: 0.755 ± 0.021
0.157CysMet: 0.157 ± 0.009
0.181CysAsn: 0.181 ± 0.011
0.344CysPro: 0.344 ± 0.016
0.194CysGln: 0.194 ± 0.011
0.545CysArg: 0.545 ± 0.022
0.398CysSer: 0.398 ± 0.015
0.356CysThr: 0.356 ± 0.016
0.547CysVal: 0.547 ± 0.021
0.09CysTrp: 0.09 ± 0.008
0.188CysTyr: 0.188 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
6.067AspAla: 6.067 ± 0.066
0.433AspCys: 0.433 ± 0.017
2.836AspAsp: 2.836 ± 0.047
3.554AspGlu: 3.554 ± 0.051
2.331AspPhe: 2.331 ± 0.039
4.779AspGly: 4.779 ± 0.064
1.218AspHis: 1.218 ± 0.029
3.44AspIle: 3.44 ± 0.048
1.724AspLys: 1.724 ± 0.033
5.685AspLeu: 5.685 ± 0.059
1.403AspMet: 1.403 ± 0.026
1.321AspAsn: 1.321 ± 0.028
3.328AspPro: 3.328 ± 0.043
1.639AspGln: 1.639 ± 0.03
4.159AspArg: 4.159 ± 0.054
1.96AspSer: 1.96 ± 0.034
2.376AspThr: 2.376 ± 0.039
3.896AspVal: 3.896 ± 0.058
0.918AspTrp: 0.918 ± 0.022
1.488AspTyr: 1.488 ± 0.033
0.0AspXaa: 0.0 ± 0.0
Glu
7.94GluAla: 7.94 ± 0.093
0.349GluCys: 0.349 ± 0.015
3.023GluAsp: 3.023 ± 0.043
4.173GluGlu: 4.173 ± 0.068
2.026GluPhe: 2.026 ± 0.034
4.639GluGly: 4.639 ± 0.06
1.234GluHis: 1.234 ± 0.03
3.993GluIle: 3.993 ± 0.054
3.017GluLys: 3.017 ± 0.051
5.641GluLeu: 5.641 ± 0.064
1.679GluMet: 1.679 ± 0.03
2.021GluAsn: 2.021 ± 0.035
2.88GluPro: 2.88 ± 0.049
2.096GluGln: 2.096 ± 0.041
5.082GluArg: 5.082 ± 0.065
2.464GluSer: 2.464 ± 0.041
3.783GluThr: 3.783 ± 0.054
4.027GluVal: 4.027 ± 0.056
0.773GluTrp: 0.773 ± 0.024
1.103GluTyr: 1.103 ± 0.026
0.0GluXaa: 0.0 ± 0.0
Phe
4.568PheAla: 4.568 ± 0.056
0.372PheCys: 0.372 ± 0.015
2.662PheAsp: 2.662 ± 0.039
2.33PheGlu: 2.33 ± 0.043
1.68PhePhe: 1.68 ± 0.043
3.839PheGly: 3.839 ± 0.057
0.798PheHis: 0.798 ± 0.023
1.963PheIle: 1.963 ± 0.037
1.111PheLys: 1.111 ± 0.027
3.79PheLeu: 3.79 ± 0.059
0.913PheMet: 0.913 ± 0.025
1.151PheAsn: 1.151 ± 0.025
1.736PhePro: 1.736 ± 0.028
1.11PheGln: 1.11 ± 0.029
2.462PheArg: 2.462 ± 0.045
2.624PheSer: 2.624 ± 0.039
2.005PheThr: 2.005 ± 0.036
2.98PheVal: 2.98 ± 0.046
0.611PheTrp: 0.611 ± 0.018
1.014PheTyr: 1.014 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
8.376GlyAla: 8.376 ± 0.087
0.778GlyCys: 0.778 ± 0.024
4.14GlyAsp: 4.14 ± 0.05
5.217GlyGlu: 5.217 ± 0.064
3.77GlyPhe: 3.77 ± 0.048
7.029GlyGly: 7.029 ± 0.087
1.809GlyHis: 1.809 ± 0.035
5.212GlyIle: 5.212 ± 0.064
3.601GlyLys: 3.601 ± 0.057
8.722GlyLeu: 8.722 ± 0.082
2.362GlyMet: 2.362 ± 0.034
2.352GlyAsn: 2.352 ± 0.039
3.224GlyPro: 3.224 ± 0.042
2.699GlyGln: 2.699 ± 0.039
5.94GlyArg: 5.94 ± 0.062
4.79GlySer: 4.79 ± 0.058
4.38GlyThr: 4.38 ± 0.062
5.835GlyVal: 5.835 ± 0.068
1.336GlyTrp: 1.336 ± 0.03
2.388GlyTyr: 2.388 ± 0.044
0.0GlyXaa: 0.0 ± 0.0
His
2.111HisAla: 2.111 ± 0.033
0.205HisCys: 0.205 ± 0.012
1.179HisAsp: 1.179 ± 0.029
1.13HisGlu: 1.13 ± 0.026
0.895HisPhe: 0.895 ± 0.023
1.835HisGly: 1.835 ± 0.032
0.526HisHis: 0.526 ± 0.022
1.009HisIle: 1.009 ± 0.029
0.501HisLys: 0.501 ± 0.017
2.056HisLeu: 2.056 ± 0.04
0.545HisMet: 0.545 ± 0.018
0.444HisAsn: 0.444 ± 0.018
1.297HisPro: 1.297 ± 0.025
0.607HisGln: 0.607 ± 0.018
1.379HisArg: 1.379 ± 0.032
0.981HisSer: 0.981 ± 0.024
0.775HisThr: 0.775 ± 0.024
1.527HisVal: 1.527 ± 0.032
0.305HisTrp: 0.305 ± 0.012
0.506HisTyr: 0.506 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
7.899IleAla: 7.899 ± 0.073
0.53IleCys: 0.53 ± 0.02
3.773IleAsp: 3.773 ± 0.043
4.037IleGlu: 4.037 ± 0.052
2.123IlePhe: 2.123 ± 0.046
5.537IleGly: 5.537 ± 0.072
1.007IleHis: 1.007 ± 0.024
2.814IleIle: 2.814 ± 0.049
1.592IleLys: 1.592 ± 0.034
4.946IleLeu: 4.946 ± 0.065
1.212IleMet: 1.212 ± 0.025
1.5IleAsn: 1.5 ± 0.031
2.571IlePro: 2.571 ± 0.04
1.319IleGln: 1.319 ± 0.03
3.745IleArg: 3.745 ± 0.049
3.435IleSer: 3.435 ± 0.043
2.859IleThr: 2.859 ± 0.043
4.559IleVal: 4.559 ± 0.055
0.659IleTrp: 0.659 ± 0.02
1.269IleTyr: 1.269 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
4.676LysAla: 4.676 ± 0.068
0.152LysCys: 0.152 ± 0.009
1.882LysAsp: 1.882 ± 0.04
2.03LysGlu: 2.03 ± 0.04
1.052LysPhe: 1.052 ± 0.025
2.901LysGly: 2.901 ± 0.046
0.678LysHis: 0.678 ± 0.019
2.073LysIle: 2.073 ± 0.039
1.481LysLys: 1.481 ± 0.03
3.648LysLeu: 3.648 ± 0.049
0.892LysMet: 0.892 ± 0.023
1.045LysAsn: 1.045 ± 0.028
2.217LysPro: 2.217 ± 0.043
1.074LysGln: 1.074 ± 0.028
2.513LysArg: 2.513 ± 0.046
2.114LysSer: 2.114 ± 0.034
2.064LysThr: 2.064 ± 0.033
2.611LysVal: 2.611 ± 0.042
0.41LysTrp: 0.41 ± 0.015
0.672LysTyr: 0.672 ± 0.021
0.0LysXaa: 0.0 ± 0.0
Leu
12.893LeuAla: 12.893 ± 0.1
0.789LeuCys: 0.789 ± 0.024
5.712LeuAsp: 5.712 ± 0.069
5.519LeuGlu: 5.519 ± 0.065
3.76LeuPhe: 3.76 ± 0.059
7.975LeuGly: 7.975 ± 0.082
1.783LeuHis: 1.783 ± 0.032
5.411LeuIle: 5.411 ± 0.068
4.028LeuLys: 4.028 ± 0.05
9.422LeuLeu: 9.422 ± 0.103
2.519LeuMet: 2.519 ± 0.045
2.63LeuAsn: 2.63 ± 0.039
5.42LeuPro: 5.42 ± 0.058
2.697LeuGln: 2.697 ± 0.04
6.226LeuArg: 6.226 ± 0.071
6.986LeuSer: 6.986 ± 0.077
5.535LeuThr: 5.535 ± 0.069
7.276LeuVal: 7.276 ± 0.078
1.125LeuTrp: 1.125 ± 0.026
2.13LeuTyr: 2.13 ± 0.037
0.0LeuXaa: 0.0 ± 0.0
Met
3.203MetAla: 3.203 ± 0.044
0.134MetCys: 0.134 ± 0.009
1.185MetAsp: 1.185 ± 0.026
1.368MetGlu: 1.368 ± 0.027
0.786MetPhe: 0.786 ± 0.022
1.833MetGly: 1.833 ± 0.035
0.421MetHis: 0.421 ± 0.015
1.631MetIle: 1.631 ± 0.03
1.156MetLys: 1.156 ± 0.029
2.692MetLeu: 2.692 ± 0.046
0.718MetMet: 0.718 ± 0.022
0.911MetAsn: 0.911 ± 0.024
1.586MetPro: 1.586 ± 0.04
0.887MetGln: 0.887 ± 0.024
1.93MetArg: 1.93 ± 0.037
1.705MetSer: 1.705 ± 0.032
1.934MetThr: 1.934 ± 0.034
1.778MetVal: 1.778 ± 0.035
0.21MetTrp: 0.21 ± 0.011
0.353MetTyr: 0.353 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
3.115AsnAla: 3.115 ± 0.046
0.234AsnCys: 0.234 ± 0.011
1.406AsnAsp: 1.406 ± 0.028
1.429AsnGlu: 1.429 ± 0.028
1.135AsnPhe: 1.135 ± 0.027
2.571AsnGly: 2.571 ± 0.04
0.564AsnHis: 0.564 ± 0.02
1.557AsnIle: 1.557 ± 0.029
0.766AsnLys: 0.766 ± 0.022
2.757AsnLeu: 2.757 ± 0.045
0.716AsnMet: 0.716 ± 0.019
0.762AsnAsn: 0.762 ± 0.022
1.901AsnPro: 1.901 ± 0.033
0.827AsnGln: 0.827 ± 0.022
1.933AsnArg: 1.933 ± 0.038
1.425AsnSer: 1.425 ± 0.032
1.284AsnThr: 1.284 ± 0.025
1.949AsnVal: 1.949 ± 0.033
0.486AsnTrp: 0.486 ± 0.018
0.722AsnTyr: 0.722 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
5.832ProAla: 5.832 ± 0.077
0.267ProCys: 0.267 ± 0.014
3.281ProAsp: 3.281 ± 0.047
3.872ProGlu: 3.872 ± 0.055
2.028ProPhe: 2.028 ± 0.037
4.055ProGly: 4.055 ± 0.052
1.081ProHis: 1.081 ± 0.027
2.427ProIle: 2.427 ± 0.04
1.852ProLys: 1.852 ± 0.036
4.625ProLeu: 4.625 ± 0.048
1.222ProMet: 1.222 ± 0.03
1.406ProAsn: 1.406 ± 0.03
2.3ProPro: 2.3 ± 0.047
1.661ProGln: 1.661 ± 0.035
2.697ProArg: 2.697 ± 0.044
2.769ProSer: 2.769 ± 0.042
2.415ProThr: 2.415 ± 0.037
4.185ProVal: 4.185 ± 0.051
0.65ProTrp: 0.65 ± 0.017
1.228ProTyr: 1.228 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
3.84GlnAla: 3.84 ± 0.054
0.172GlnCys: 0.172 ± 0.01
1.356GlnAsp: 1.356 ± 0.028
1.748GlnGlu: 1.748 ± 0.04
1.075GlnPhe: 1.075 ± 0.026
2.25GlnGly: 2.25 ± 0.042
0.583GlnHis: 0.583 ± 0.02
1.842GlnIle: 1.842 ± 0.027
1.215GlnLys: 1.215 ± 0.03
2.685GlnLeu: 2.685 ± 0.044
0.95GlnMet: 0.95 ± 0.028
0.906GlnAsn: 0.906 ± 0.022
1.688GlnPro: 1.688 ± 0.035
1.222GlnGln: 1.222 ± 0.034
2.209GlnArg: 2.209 ± 0.037
1.731GlnSer: 1.731 ± 0.029
1.63GlnThr: 1.63 ± 0.03
2.18GlnVal: 2.18 ± 0.037
0.38GlnTrp: 0.38 ± 0.014
0.622GlnTyr: 0.622 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
6.905ArgAla: 6.905 ± 0.08
0.414ArgCys: 0.414 ± 0.018
3.731ArgAsp: 3.731 ± 0.054
4.432ArgGlu: 4.432 ± 0.067
2.883ArgPhe: 2.883 ± 0.046
4.484ArgGly: 4.484 ± 0.054
1.701ArgHis: 1.701 ± 0.037
4.242ArgIle: 4.242 ± 0.05
2.64ArgLys: 2.64 ± 0.047
7.448ArgLeu: 7.448 ± 0.077
2.026ArgMet: 2.026 ± 0.036
2.103ArgAsn: 2.103 ± 0.031
3.292ArgPro: 3.292 ± 0.048
2.665ArgGln: 2.665 ± 0.043
5.4ArgArg: 5.4 ± 0.072
3.85ArgSer: 3.85 ± 0.056
3.244ArgThr: 3.244 ± 0.044
4.392ArgVal: 4.392 ± 0.05
0.88ArgTrp: 0.88 ± 0.022
1.824ArgTyr: 1.824 ± 0.033
0.0ArgXaa: 0.0 ± 0.0
Ser
6.194SerAla: 6.194 ± 0.065
0.382SerCys: 0.382 ± 0.018
2.977SerAsp: 2.977 ± 0.047
3.158SerGlu: 3.158 ± 0.045
2.572SerPhe: 2.572 ± 0.039
5.756SerGly: 5.756 ± 0.061
1.116SerHis: 1.116 ± 0.024
3.219SerIle: 3.219 ± 0.041
1.801SerLys: 1.801 ± 0.036
5.816SerLeu: 5.816 ± 0.068
1.473SerMet: 1.473 ± 0.031
1.465SerAsn: 1.465 ± 0.03
2.89SerPro: 2.89 ± 0.04
1.691SerGln: 1.691 ± 0.038
3.876SerArg: 3.876 ± 0.056
3.269SerSer: 3.269 ± 0.046
2.774SerThr: 2.774 ± 0.043
4.127SerVal: 4.127 ± 0.043
0.765SerTrp: 0.765 ± 0.023
1.401SerTyr: 1.401 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
5.956ThrAla: 5.956 ± 0.07
0.402ThrCys: 0.402 ± 0.015
2.638ThrAsp: 2.638 ± 0.043
2.843ThrGlu: 2.843 ± 0.043
2.097ThrPhe: 2.097 ± 0.036
4.924ThrGly: 4.924 ± 0.062
0.982ThrHis: 0.982 ± 0.025
3.179ThrIle: 3.179 ± 0.049
1.557ThrLys: 1.557 ± 0.034
5.55ThrLeu: 5.55 ± 0.064
1.277ThrMet: 1.277 ± 0.028
1.344ThrAsn: 1.344 ± 0.029
2.963ThrPro: 2.963 ± 0.044
1.341ThrGln: 1.341 ± 0.031
3.13ThrArg: 3.13 ± 0.051
2.905ThrSer: 2.905 ± 0.04
2.688ThrThr: 2.688 ± 0.041
4.413ThrVal: 4.413 ± 0.056
0.672ThrTrp: 0.672 ± 0.019
1.214ThrTyr: 1.214 ± 0.028
0.0ThrXaa: 0.0 ± 0.0
Val
8.618ValAla: 8.618 ± 0.087
0.56ValCys: 0.56 ± 0.016
3.837ValAsp: 3.837 ± 0.05
4.666ValGlu: 4.666 ± 0.057
2.957ValPhe: 2.957 ± 0.039
5.397ValGly: 5.397 ± 0.061
1.332ValHis: 1.332 ± 0.026
4.276ValIle: 4.276 ± 0.051
2.538ValLys: 2.538 ± 0.046
7.348ValLeu: 7.348 ± 0.075
1.928ValMet: 1.928 ± 0.033
1.994ValAsn: 1.994 ± 0.035
3.692ValPro: 3.692 ± 0.046
1.944ValGln: 1.944 ± 0.029
4.646ValArg: 4.646 ± 0.05
4.679ValSer: 4.679 ± 0.052
4.495ValThr: 4.495 ± 0.061
5.791ValVal: 5.791 ± 0.067
0.812ValTrp: 0.812 ± 0.023
1.498ValTyr: 1.498 ± 0.032
0.0ValXaa: 0.0 ± 0.0
Trp
1.18TrpAla: 1.18 ± 0.027
0.12TrpCys: 0.12 ± 0.008
0.623TrpAsp: 0.623 ± 0.021
0.623TrpGlu: 0.623 ± 0.021
0.556TrpPhe: 0.556 ± 0.019
0.863TrpGly: 0.863 ± 0.022
0.298TrpHis: 0.298 ± 0.012
0.697TrpIle: 0.697 ± 0.021
0.552TrpLys: 0.552 ± 0.018
1.545TrpLeu: 1.545 ± 0.034
0.377TrpMet: 0.377 ± 0.016
0.484TrpAsn: 0.484 ± 0.018
0.693TrpPro: 0.693 ± 0.021
0.564TrpGln: 0.564 ± 0.02
1.046TrpArg: 1.046 ± 0.024
0.824TrpSer: 0.824 ± 0.022
0.72TrpThr: 0.72 ± 0.024
0.741TrpVal: 0.741 ± 0.021
0.226TrpTrp: 0.226 ± 0.013
0.294TrpTyr: 0.294 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.454TyrAla: 2.454 ± 0.041
0.21TyrCys: 0.21 ± 0.01
1.455TyrAsp: 1.455 ± 0.031
1.375TyrGlu: 1.375 ± 0.028
0.999TyrPhe: 0.999 ± 0.027
2.171TyrGly: 2.171 ± 0.036
0.498TyrHis: 0.498 ± 0.017
1.053TyrIle: 1.053 ± 0.024
0.65TyrLys: 0.65 ± 0.022
2.333TyrLeu: 2.333 ± 0.036
0.486TyrMet: 0.486 ± 0.017
0.599TyrAsn: 0.599 ± 0.019
1.183TyrPro: 1.183 ± 0.028
0.698TyrGln: 0.698 ± 0.019
1.859TyrArg: 1.859 ± 0.035
1.312TyrSer: 1.312 ± 0.027
1.088TyrThr: 1.088 ± 0.027
1.663TyrVal: 1.663 ± 0.029
0.375TyrTrp: 0.375 ± 0.016
0.673TyrTyr: 0.673 ± 0.022
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 5603 proteins (1692521 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