Amino acid dipepetide frequency for Pedobacter sp. RP-3-15

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
5.956AlaAla: 5.956 ± 0.087
0.635AlaCys: 0.635 ± 0.022
4.306AlaAsp: 4.306 ± 0.062
4.485AlaGlu: 4.485 ± 0.062
3.362AlaPhe: 3.362 ± 0.048
5.474AlaGly: 5.474 ± 0.091
1.146AlaHis: 1.146 ± 0.03
5.344AlaIle: 5.344 ± 0.083
4.957AlaLys: 4.957 ± 0.076
6.752AlaLeu: 6.752 ± 0.073
1.72AlaMet: 1.72 ± 0.037
3.813AlaAsn: 3.813 ± 0.068
2.21AlaPro: 2.21 ± 0.048
2.789AlaGln: 2.789 ± 0.041
2.339AlaArg: 2.339 ± 0.045
4.548AlaSer: 4.548 ± 0.071
4.107AlaThr: 4.107 ± 0.093
4.891AlaVal: 4.891 ± 0.073
0.726AlaTrp: 0.726 ± 0.025
2.902AlaTyr: 2.902 ± 0.049
0.0AlaXaa: 0.0 ± 0.0
Cys
0.506CysAla: 0.506 ± 0.021
0.112CysCys: 0.112 ± 0.008
0.382CysAsp: 0.382 ± 0.018
0.376CysGlu: 0.376 ± 0.016
0.434CysPhe: 0.434 ± 0.017
0.606CysGly: 0.606 ± 0.023
0.19CysHis: 0.19 ± 0.012
0.607CysIle: 0.607 ± 0.022
0.533CysLys: 0.533 ± 0.018
0.744CysLeu: 0.744 ± 0.023
0.165CysMet: 0.165 ± 0.011
0.374CysAsn: 0.374 ± 0.016
0.278CysPro: 0.278 ± 0.017
0.208CysGln: 0.208 ± 0.013
0.296CysArg: 0.296 ± 0.014
0.506CysSer: 0.506 ± 0.021
0.41CysThr: 0.41 ± 0.018
0.437CysVal: 0.437 ± 0.017
0.069CysTrp: 0.069 ± 0.008
0.273CysTyr: 0.273 ± 0.014
0.0CysXaa: 0.0 ± 0.0
Asp
3.871AspAla: 3.871 ± 0.056
0.382AspCys: 0.382 ± 0.018
2.558AspAsp: 2.558 ± 0.047
3.429AspGlu: 3.429 ± 0.046
3.212AspPhe: 3.212 ± 0.054
3.849AspGly: 3.849 ± 0.066
1.019AspHis: 1.019 ± 0.027
3.965AspIle: 3.965 ± 0.057
4.078AspLys: 4.078 ± 0.059
5.061AspLeu: 5.061 ± 0.063
1.236AspMet: 1.236 ± 0.037
2.682AspAsn: 2.682 ± 0.041
2.116AspPro: 2.116 ± 0.043
2.045AspGln: 2.045 ± 0.039
2.099AspArg: 2.099 ± 0.038
2.811AspSer: 2.811 ± 0.053
2.497AspThr: 2.497 ± 0.048
3.539AspVal: 3.539 ± 0.053
0.756AspTrp: 0.756 ± 0.026
2.551AspTyr: 2.551 ± 0.043
0.0AspXaa: 0.0 ± 0.0
Glu
3.994GluAla: 3.994 ± 0.054
0.328GluCys: 0.328 ± 0.018
2.849GluAsp: 2.849 ± 0.055
3.809GluGlu: 3.809 ± 0.064
2.469GluPhe: 2.469 ± 0.047
3.517GluGly: 3.517 ± 0.056
1.076GluHis: 1.076 ± 0.03
4.657GluIle: 4.657 ± 0.075
4.974GluLys: 4.974 ± 0.076
5.968GluLeu: 5.968 ± 0.082
1.515GluMet: 1.515 ± 0.032
3.522GluAsn: 3.522 ± 0.048
1.589GluPro: 1.589 ± 0.033
2.52GluGln: 2.52 ± 0.045
2.573GluArg: 2.573 ± 0.046
2.977GluSer: 2.977 ± 0.043
2.992GluThr: 2.992 ± 0.047
3.94GluVal: 3.94 ± 0.056
0.628GluTrp: 0.628 ± 0.024
2.091GluTyr: 2.091 ± 0.036
0.0GluXaa: 0.0 ± 0.0
Phe
3.298PheAla: 3.298 ± 0.052
0.472PheCys: 0.472 ± 0.019
2.852PheAsp: 2.852 ± 0.045
2.82PheGlu: 2.82 ± 0.051
2.418PhePhe: 2.418 ± 0.057
3.413PheGly: 3.413 ± 0.046
0.764PheHis: 0.764 ± 0.025
3.535PheIle: 3.535 ± 0.056
3.568PheLys: 3.568 ± 0.056
4.199PheLeu: 4.199 ± 0.07
1.107PheMet: 1.107 ± 0.026
3.13PheAsn: 3.13 ± 0.057
1.702PhePro: 1.702 ± 0.034
1.338PheGln: 1.338 ± 0.035
1.743PheArg: 1.743 ± 0.039
3.861PheSer: 3.861 ± 0.058
3.057PheThr: 3.057 ± 0.046
2.868PheVal: 2.868 ± 0.054
0.546PheTrp: 0.546 ± 0.023
2.101PheTyr: 2.101 ± 0.037
0.0PheXaa: 0.0 ± 0.0
Gly
4.667GlyAla: 4.667 ± 0.081
0.583GlyCys: 0.583 ± 0.025
3.387GlyAsp: 3.387 ± 0.05
3.386GlyGlu: 3.386 ± 0.047
3.626GlyPhe: 3.626 ± 0.062
5.009GlyGly: 5.009 ± 0.086
1.138GlyHis: 1.138 ± 0.034
5.46GlyIle: 5.46 ± 0.062
5.589GlyLys: 5.589 ± 0.075
6.411GlyLeu: 6.411 ± 0.075
1.723GlyMet: 1.723 ± 0.04
3.924GlyAsn: 3.924 ± 0.077
1.556GlyPro: 1.556 ± 0.04
2.203GlyGln: 2.203 ± 0.043
2.564GlyArg: 2.564 ± 0.043
4.629GlySer: 4.629 ± 0.07
4.432GlyThr: 4.432 ± 0.092
4.382GlyVal: 4.382 ± 0.07
0.858GlyTrp: 0.858 ± 0.026
3.202GlyTyr: 3.202 ± 0.058
0.0GlyXaa: 0.0 ± 0.0
His
1.056HisAla: 1.056 ± 0.031
0.184HisCys: 0.184 ± 0.012
0.824HisAsp: 0.824 ± 0.024
0.945HisGlu: 0.945 ± 0.027
1.036HisPhe: 1.036 ± 0.03
1.078HisGly: 1.078 ± 0.027
0.469HisHis: 0.469 ± 0.019
1.297HisIle: 1.297 ± 0.036
1.061HisLys: 1.061 ± 0.029
1.735HisLeu: 1.735 ± 0.037
0.363HisMet: 0.363 ± 0.015
0.882HisAsn: 0.882 ± 0.024
0.898HisPro: 0.898 ± 0.028
0.721HisGln: 0.721 ± 0.023
0.669HisArg: 0.669 ± 0.021
1.025HisSer: 1.025 ± 0.03
0.923HisThr: 0.923 ± 0.023
0.967HisVal: 0.967 ± 0.026
0.218HisTrp: 0.218 ± 0.011
0.772HisTyr: 0.772 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
5.872IleAla: 5.872 ± 0.073
0.685IleCys: 0.685 ± 0.023
4.393IleAsp: 4.393 ± 0.05
4.482IleGlu: 4.482 ± 0.064
3.153IlePhe: 3.153 ± 0.054
4.955IleGly: 4.955 ± 0.062
1.223IleHis: 1.223 ± 0.031
5.122IleIle: 5.122 ± 0.072
5.35IleLys: 5.35 ± 0.069
6.328IleLeu: 6.328 ± 0.084
1.383IleMet: 1.383 ± 0.035
4.445IleAsn: 4.445 ± 0.067
3.069IlePro: 3.069 ± 0.049
2.331IleGln: 2.331 ± 0.039
2.924IleArg: 2.924 ± 0.047
5.46IleSer: 5.46 ± 0.072
4.603IleThr: 4.603 ± 0.074
4.45IleVal: 4.45 ± 0.065
0.691IleTrp: 0.691 ± 0.026
2.757IleTyr: 2.757 ± 0.051
0.0IleXaa: 0.0 ± 0.0
Lys
5.415LysAla: 5.415 ± 0.081
0.333LysCys: 0.333 ± 0.018
4.429LysAsp: 4.429 ± 0.057
4.881LysGlu: 4.881 ± 0.066
2.827LysPhe: 2.827 ± 0.047
4.821LysGly: 4.821 ± 0.064
1.314LysHis: 1.314 ± 0.033
5.541LysIle: 5.541 ± 0.065
5.755LysLys: 5.755 ± 0.092
6.653LysLeu: 6.653 ± 0.086
1.995LysMet: 1.995 ± 0.046
4.571LysAsn: 4.571 ± 0.059
2.867LysPro: 2.867 ± 0.055
2.812LysGln: 2.812 ± 0.051
2.895LysArg: 2.895 ± 0.05
4.481LysSer: 4.481 ± 0.059
4.393LysThr: 4.393 ± 0.065
4.664LysVal: 4.664 ± 0.061
0.831LysTrp: 0.831 ± 0.026
3.052LysTyr: 3.052 ± 0.05
0.0LysXaa: 0.0 ± 0.0
Leu
6.508LeuAla: 6.508 ± 0.077
0.761LeuCys: 0.761 ± 0.026
4.865LeuAsp: 4.865 ± 0.069
5.043LeuGlu: 5.043 ± 0.073
4.537LeuPhe: 4.537 ± 0.066
5.77LeuGly: 5.77 ± 0.074
1.529LeuHis: 1.529 ± 0.035
6.804LeuIle: 6.804 ± 0.082
7.831LeuLys: 7.831 ± 0.096
9.055LeuLeu: 9.055 ± 0.111
2.211LeuMet: 2.211 ± 0.039
5.975LeuAsn: 5.975 ± 0.076
3.873LeuPro: 3.873 ± 0.059
3.401LeuGln: 3.401 ± 0.055
3.614LeuArg: 3.614 ± 0.055
7.347LeuSer: 7.347 ± 0.074
5.426LeuThr: 5.426 ± 0.069
5.259LeuVal: 5.259 ± 0.064
0.913LeuTrp: 0.913 ± 0.028
3.177LeuTyr: 3.177 ± 0.048
0.0LeuXaa: 0.0 ± 0.0
Met
1.797MetAla: 1.797 ± 0.038
0.135MetCys: 0.135 ± 0.011
1.234MetAsp: 1.234 ± 0.032
1.405MetGlu: 1.405 ± 0.033
0.851MetPhe: 0.851 ± 0.027
1.543MetGly: 1.543 ± 0.035
0.391MetHis: 0.391 ± 0.019
1.553MetIle: 1.553 ± 0.036
2.092MetLys: 2.092 ± 0.043
2.228MetLeu: 2.228 ± 0.048
0.651MetMet: 0.651 ± 0.019
1.383MetAsn: 1.383 ± 0.034
1.049MetPro: 1.049 ± 0.028
0.93MetGln: 0.93 ± 0.03
0.968MetArg: 0.968 ± 0.024
1.432MetSer: 1.432 ± 0.033
1.134MetThr: 1.134 ± 0.03
1.443MetVal: 1.443 ± 0.035
0.188MetTrp: 0.188 ± 0.012
0.695MetTyr: 0.695 ± 0.022
0.0MetXaa: 0.0 ± 0.0
Asn
4.205AsnAla: 4.205 ± 0.063
0.381AsnCys: 0.381 ± 0.021
2.916AsnAsp: 2.916 ± 0.04
3.207AsnGlu: 3.207 ± 0.05
2.82AsnPhe: 2.82 ± 0.05
4.358AsnGly: 4.358 ± 0.075
0.959AsnHis: 0.959 ± 0.031
4.353AsnIle: 4.353 ± 0.063
4.056AsnLys: 4.056 ± 0.059
5.172AsnLeu: 5.172 ± 0.067
1.276AsnMet: 1.276 ± 0.032
3.515AsnAsn: 3.515 ± 0.069
2.782AsnPro: 2.782 ± 0.055
2.049AsnGln: 2.049 ± 0.046
2.322AsnArg: 2.322 ± 0.049
3.564AsnSer: 3.564 ± 0.061
3.505AsnThr: 3.505 ± 0.072
3.524AsnVal: 3.524 ± 0.06
0.72AsnTrp: 0.72 ± 0.024
2.725AsnTyr: 2.725 ± 0.052
0.0AsnXaa: 0.0 ± 0.0
Pro
2.999ProAla: 2.999 ± 0.072
0.249ProCys: 0.249 ± 0.015
2.452ProAsp: 2.452 ± 0.044
2.754ProGlu: 2.754 ± 0.045
1.857ProPhe: 1.857 ± 0.035
2.6ProGly: 2.6 ± 0.046
0.598ProHis: 0.598 ± 0.02
2.327ProIle: 2.327 ± 0.04
2.314ProLys: 2.314 ± 0.042
3.275ProLeu: 3.275 ± 0.049
0.761ProMet: 0.761 ± 0.028
1.993ProAsn: 1.993 ± 0.041
0.94ProPro: 0.94 ± 0.032
1.291ProGln: 1.291 ± 0.031
1.1ProArg: 1.1 ± 0.03
2.331ProSer: 2.331 ± 0.046
1.89ProThr: 1.89 ± 0.05
3.102ProVal: 3.102 ± 0.056
0.387ProTrp: 0.387 ± 0.017
1.484ProTyr: 1.484 ± 0.034
0.0ProXaa: 0.0 ± 0.0
Gln
2.452GlnAla: 2.452 ± 0.042
0.174GlnCys: 0.174 ± 0.013
1.618GlnAsp: 1.618 ± 0.036
2.103GlnGlu: 2.103 ± 0.04
1.61GlnPhe: 1.61 ± 0.031
2.026GlnGly: 2.026 ± 0.037
0.685GlnHis: 0.685 ± 0.024
2.625GlnIle: 2.625 ± 0.045
2.735GlnLys: 2.735 ± 0.057
3.787GlnLeu: 3.787 ± 0.066
0.899GlnMet: 0.899 ± 0.026
2.089GlnAsn: 2.089 ± 0.035
1.25GlnPro: 1.25 ± 0.033
1.856GlnGln: 1.856 ± 0.041
1.459GlnArg: 1.459 ± 0.033
2.171GlnSer: 2.171 ± 0.042
2.064GlnThr: 2.064 ± 0.04
2.223GlnVal: 2.223 ± 0.046
0.414GlnTrp: 0.414 ± 0.017
1.483GlnTyr: 1.483 ± 0.031
0.0GlnXaa: 0.0 ± 0.0
Arg
2.355ArgAla: 2.355 ± 0.049
0.212ArgCys: 0.212 ± 0.012
1.903ArgAsp: 1.903 ± 0.038
2.2ArgGlu: 2.2 ± 0.042
2.086ArgPhe: 2.086 ± 0.037
2.212ArgGly: 2.212 ± 0.046
0.63ArgHis: 0.63 ± 0.022
3.114ArgIle: 3.114 ± 0.048
3.01ArgLys: 3.01 ± 0.057
3.843ArgLeu: 3.843 ± 0.055
1.082ArgMet: 1.082 ± 0.031
2.317ArgAsn: 2.317 ± 0.045
1.298ArgPro: 1.298 ± 0.029
1.319ArgGln: 1.319 ± 0.031
1.507ArgArg: 1.507 ± 0.035
2.298ArgSer: 2.298 ± 0.045
2.066ArgThr: 2.066 ± 0.037
2.28ArgVal: 2.28 ± 0.037
0.488ArgTrp: 0.488 ± 0.018
1.809ArgTyr: 1.809 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
4.843SerAla: 4.843 ± 0.065
0.581SerCys: 0.581 ± 0.019
3.242SerAsp: 3.242 ± 0.048
3.27SerGlu: 3.27 ± 0.053
3.699SerPhe: 3.699 ± 0.057
5.321SerGly: 5.321 ± 0.092
1.048SerHis: 1.048 ± 0.027
4.935SerIle: 4.935 ± 0.059
4.433SerLys: 4.433 ± 0.055
6.287SerLeu: 6.287 ± 0.074
1.341SerMet: 1.341 ± 0.031
3.51SerAsn: 3.51 ± 0.063
2.388SerPro: 2.388 ± 0.041
1.971SerGln: 1.971 ± 0.039
2.506SerArg: 2.506 ± 0.044
4.511SerSer: 4.511 ± 0.067
3.759SerThr: 3.759 ± 0.068
4.305SerVal: 4.305 ± 0.053
0.826SerTrp: 0.826 ± 0.027
2.9SerTyr: 2.9 ± 0.054
0.0SerXaa: 0.0 ± 0.0
Thr
4.659ThrAla: 4.659 ± 0.084
0.34ThrCys: 0.34 ± 0.017
3.388ThrAsp: 3.388 ± 0.046
3.231ThrGlu: 3.231 ± 0.049
2.762ThrPhe: 2.762 ± 0.047
4.838ThrGly: 4.838 ± 0.089
0.889ThrHis: 0.889 ± 0.026
4.352ThrIle: 4.352 ± 0.071
3.459ThrLys: 3.459 ± 0.053
5.464ThrLeu: 5.464 ± 0.076
1.026ThrMet: 1.026 ± 0.028
3.031ThrAsn: 3.031 ± 0.054
2.482ThrPro: 2.482 ± 0.058
1.81ThrGln: 1.81 ± 0.037
1.861ThrArg: 1.861 ± 0.037
3.716ThrSer: 3.716 ± 0.064
3.495ThrThr: 3.495 ± 0.1
3.923ThrVal: 3.923 ± 0.085
0.607ThrTrp: 0.607 ± 0.021
2.464ThrTyr: 2.464 ± 0.052
0.0ThrXaa: 0.0 ± 0.0
Val
4.557ValAla: 4.557 ± 0.063
0.507ValCys: 0.507 ± 0.018
3.318ValAsp: 3.318 ± 0.051
3.444ValGlu: 3.444 ± 0.056
3.169ValPhe: 3.169 ± 0.058
3.769ValGly: 3.769 ± 0.065
1.04ValHis: 1.04 ± 0.029
4.722ValIle: 4.722 ± 0.069
4.941ValLys: 4.941 ± 0.074
6.043ValLeu: 6.043 ± 0.067
1.513ValMet: 1.513 ± 0.036
3.834ValAsn: 3.834 ± 0.064
2.393ValPro: 2.393 ± 0.046
2.057ValGln: 2.057 ± 0.037
2.333ValArg: 2.333 ± 0.042
4.567ValSer: 4.567 ± 0.067
3.784ValThr: 3.784 ± 0.087
4.426ValVal: 4.426 ± 0.079
0.649ValTrp: 0.649 ± 0.021
2.495ValTyr: 2.495 ± 0.044
0.0ValXaa: 0.0 ± 0.0
Trp
0.714TrpAla: 0.714 ± 0.025
0.125TrpCys: 0.125 ± 0.01
0.589TrpAsp: 0.589 ± 0.02
0.626TrpGlu: 0.626 ± 0.024
0.568TrpPhe: 0.568 ± 0.021
0.763TrpGly: 0.763 ± 0.024
0.222TrpHis: 0.222 ± 0.013
0.751TrpIle: 0.751 ± 0.025
0.865TrpLys: 0.865 ± 0.028
1.053TrpLeu: 1.053 ± 0.028
0.346TrpMet: 0.346 ± 0.018
0.696TrpAsn: 0.696 ± 0.026
0.343TrpPro: 0.343 ± 0.017
0.47TrpGln: 0.47 ± 0.02
0.467TrpArg: 0.467 ± 0.017
0.659TrpSer: 0.659 ± 0.024
0.65TrpThr: 0.65 ± 0.025
0.645TrpVal: 0.645 ± 0.019
0.151TrpTrp: 0.151 ± 0.011
0.489TrpTyr: 0.489 ± 0.025
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.739TyrAla: 2.739 ± 0.055
0.327TyrCys: 0.327 ± 0.017
2.25TyrAsp: 2.25 ± 0.038
2.09TyrGlu: 2.09 ± 0.044
2.296TyrPhe: 2.296 ± 0.042
2.808TyrGly: 2.808 ± 0.048
0.793TyrHis: 0.793 ± 0.025
2.614TyrIle: 2.614 ± 0.045
2.927TyrLys: 2.927 ± 0.055
3.84TyrLeu: 3.84 ± 0.062
0.788TyrMet: 0.788 ± 0.025
2.724TyrAsn: 2.724 ± 0.057
1.617TyrPro: 1.617 ± 0.032
1.605TyrGln: 1.605 ± 0.042
1.789TyrArg: 1.789 ± 0.04
2.781TyrSer: 2.781 ± 0.051
2.61TyrThr: 2.61 ± 0.053
2.295TyrVal: 2.295 ± 0.04
0.529TyrTrp: 0.529 ± 0.021
1.932TyrTyr: 1.932 ± 0.043
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 3967 proteins (1413291 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