Amino acid dipepetide frequency for bacterium SCGC AG-212-C10

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
16.021AlaAla: 16.021 ± 0.209
1.01AlaCys: 1.01 ± 0.04
6.422AlaAsp: 6.422 ± 0.11
6.768AlaGlu: 6.768 ± 0.115
4.251AlaPhe: 4.251 ± 0.078
11.475AlaGly: 11.475 ± 0.157
2.07AlaHis: 2.07 ± 0.061
6.439AlaIle: 6.439 ± 0.115
3.205AlaLys: 3.205 ± 0.077
11.366AlaLeu: 11.366 ± 0.16
3.043AlaMet: 3.043 ± 0.078
3.615AlaAsn: 3.615 ± 0.093
5.556AlaPro: 5.556 ± 0.11
3.627AlaGln: 3.627 ± 0.083
7.598AlaArg: 7.598 ± 0.127
7.156AlaSer: 7.156 ± 0.118
7.753AlaThr: 7.753 ± 0.143
9.006AlaVal: 9.006 ± 0.125
1.721AlaTrp: 1.721 ± 0.057
2.517AlaTyr: 2.517 ± 0.064
0.0AlaXaa: 0.0 ± 0.0
Cys
0.911CysAla: 0.911 ± 0.041
0.095CysCys: 0.095 ± 0.013
0.606CysAsp: 0.606 ± 0.034
0.492CysGlu: 0.492 ± 0.026
0.269CysPhe: 0.269 ± 0.022
0.958CysGly: 0.958 ± 0.038
0.215CysHis: 0.215 ± 0.02
0.353CysIle: 0.353 ± 0.021
0.17CysLys: 0.17 ± 0.015
0.661CysLeu: 0.661 ± 0.028
0.197CysMet: 0.197 ± 0.017
0.263CysAsn: 0.263 ± 0.021
0.505CysPro: 0.505 ± 0.029
0.272CysGln: 0.272 ± 0.021
0.522CysArg: 0.522 ± 0.032
0.505CysSer: 0.505 ± 0.031
0.52CysThr: 0.52 ± 0.035
0.643CysVal: 0.643 ± 0.031
0.146CysTrp: 0.146 ± 0.021
0.239CysTyr: 0.239 ± 0.02
0.0CysXaa: 0.0 ± 0.0
Asp
6.882AspAla: 6.882 ± 0.132
0.504AspCys: 0.504 ± 0.032
3.626AspAsp: 3.626 ± 0.086
3.716AspGlu: 3.716 ± 0.087
2.106AspPhe: 2.106 ± 0.057
5.857AspGly: 5.857 ± 0.115
1.194AspHis: 1.194 ± 0.043
2.931AspIle: 2.931 ± 0.066
1.194AspLys: 1.194 ± 0.045
5.397AspLeu: 5.397 ± 0.097
1.093AspMet: 1.093 ± 0.04
1.276AspAsn: 1.276 ± 0.051
3.632AspPro: 3.632 ± 0.069
1.535AspGln: 1.535 ± 0.049
3.818AspArg: 3.818 ± 0.076
3.034AspSer: 3.034 ± 0.066
2.745AspThr: 2.745 ± 0.064
4.556AspVal: 4.556 ± 0.075
0.925AspTrp: 0.925 ± 0.037
1.505AspTyr: 1.505 ± 0.048
0.0AspXaa: 0.0 ± 0.0
Glu
6.927GluAla: 6.927 ± 0.122
0.431GluCys: 0.431 ± 0.026
2.922GluAsp: 2.922 ± 0.075
3.501GluGlu: 3.501 ± 0.085
2.031GluPhe: 2.031 ± 0.058
4.429GluGly: 4.429 ± 0.079
1.446GluHis: 1.446 ± 0.052
2.9GluIle: 2.9 ± 0.073
1.625GluLys: 1.625 ± 0.056
5.929GluLeu: 5.929 ± 0.12
1.475GluMet: 1.475 ± 0.054
1.392GluAsn: 1.392 ± 0.046
2.945GluPro: 2.945 ± 0.075
2.302GluGln: 2.302 ± 0.061
5.325GluArg: 5.325 ± 0.113
3.328GluSer: 3.328 ± 0.07
3.095GluThr: 3.095 ± 0.071
4.304GluVal: 4.304 ± 0.092
0.906GluTrp: 0.906 ± 0.039
1.363GluTyr: 1.363 ± 0.046
0.0GluXaa: 0.0 ± 0.0
Phe
4.645PheAla: 4.645 ± 0.091
0.335PheCys: 0.335 ± 0.025
2.52PheAsp: 2.52 ± 0.076
2.259PheGlu: 2.259 ± 0.062
1.278PhePhe: 1.278 ± 0.048
3.549PheGly: 3.549 ± 0.091
0.702PheHis: 0.702 ± 0.033
1.503PheIle: 1.503 ± 0.05
0.843PheLys: 0.843 ± 0.039
3.1PheLeu: 3.1 ± 0.066
0.678PheMet: 0.678 ± 0.034
1.051PheAsn: 1.051 ± 0.047
1.625PhePro: 1.625 ± 0.062
1.012PheGln: 1.012 ± 0.038
2.3PheArg: 2.3 ± 0.062
2.141PheSer: 2.141 ± 0.053
2.205PheThr: 2.205 ± 0.056
3.013PheVal: 3.013 ± 0.071
0.522PheTrp: 0.522 ± 0.036
0.834PheTyr: 0.834 ± 0.037
0.0PheXaa: 0.0 ± 0.0
Gly
9.415GlyAla: 9.415 ± 0.127
0.846GlyCys: 0.846 ± 0.036
5.017GlyAsp: 5.017 ± 0.097
5.062GlyGlu: 5.062 ± 0.096
3.342GlyPhe: 3.342 ± 0.086
8.409GlyGly: 8.409 ± 0.182
1.849GlyHis: 1.849 ± 0.053
4.878GlyIle: 4.878 ± 0.093
2.783GlyLys: 2.783 ± 0.069
8.166GlyLeu: 8.166 ± 0.119
2.226GlyMet: 2.226 ± 0.07
2.795GlyAsn: 2.795 ± 0.161
4.053GlyPro: 4.053 ± 0.089
2.931GlyGln: 2.931 ± 0.061
5.827GlyArg: 5.827 ± 0.105
5.413GlySer: 5.413 ± 0.107
5.728GlyThr: 5.728 ± 0.145
7.297GlyVal: 7.297 ± 0.121
1.41GlyTrp: 1.41 ± 0.046
2.449GlyTyr: 2.449 ± 0.062
0.0GlyXaa: 0.0 ± 0.0
His
2.132HisAla: 2.132 ± 0.055
0.215HisCys: 0.215 ± 0.019
1.239HisAsp: 1.239 ± 0.044
1.231HisGlu: 1.231 ± 0.05
0.764HisPhe: 0.764 ± 0.039
1.827HisGly: 1.827 ± 0.058
0.55HisHis: 0.55 ± 0.03
0.991HisIle: 0.991 ± 0.042
0.434HisLys: 0.434 ± 0.03
1.888HisLeu: 1.888 ± 0.046
0.452HisMet: 0.452 ± 0.028
0.568HisAsn: 0.568 ± 0.031
1.323HisPro: 1.323 ± 0.046
0.549HisGln: 0.549 ± 0.027
1.308HisArg: 1.308 ± 0.048
1.069HisSer: 1.069 ± 0.042
1.04HisThr: 1.04 ± 0.041
1.512HisVal: 1.512 ± 0.047
0.368HisTrp: 0.368 ± 0.023
0.556HisTyr: 0.556 ± 0.033
0.0HisXaa: 0.0 ± 0.0
Ile
6.894IleAla: 6.894 ± 0.122
0.454IleCys: 0.454 ± 0.027
3.396IleAsp: 3.396 ± 0.066
3.273IleGlu: 3.273 ± 0.079
1.566IlePhe: 1.566 ± 0.045
4.662IleGly: 4.662 ± 0.122
0.869IleHis: 0.869 ± 0.04
2.235IleIle: 2.235 ± 0.066
1.058IleLys: 1.058 ± 0.043
3.857IleLeu: 3.857 ± 0.093
0.849IleMet: 0.849 ± 0.039
1.36IleAsn: 1.36 ± 0.051
2.562IlePro: 2.562 ± 0.062
1.366IleGln: 1.366 ± 0.049
3.19IleArg: 3.19 ± 0.073
2.928IleSer: 2.928 ± 0.076
2.946IleThr: 2.946 ± 0.077
4.199IleVal: 4.199 ± 0.091
0.58IleTrp: 0.58 ± 0.029
1.079IleTyr: 1.079 ± 0.044
0.0IleXaa: 0.0 ± 0.0
Lys
2.844LysAla: 2.844 ± 0.07
0.164LysCys: 0.164 ± 0.02
1.526LysAsp: 1.526 ± 0.051
1.514LysGlu: 1.514 ± 0.045
0.824LysPhe: 0.824 ± 0.041
1.936LysGly: 1.936 ± 0.061
0.607LysHis: 0.607 ± 0.031
1.161LysIle: 1.161 ± 0.048
0.872LysLys: 0.872 ± 0.041
2.566LysLeu: 2.566 ± 0.07
0.663LysMet: 0.663 ± 0.035
0.684LysAsn: 0.684 ± 0.034
1.485LysPro: 1.485 ± 0.056
0.934LysGln: 0.934 ± 0.041
1.974LysArg: 1.974 ± 0.056
1.491LysSer: 1.491 ± 0.051
1.49LysThr: 1.49 ± 0.047
2.079LysVal: 2.079 ± 0.051
0.329LysTrp: 0.329 ± 0.025
0.687LysTyr: 0.687 ± 0.032
0.0LysXaa: 0.0 ± 0.0
Leu
12.551LeuAla: 12.551 ± 0.164
0.756LeuCys: 0.756 ± 0.034
5.525LeuAsp: 5.525 ± 0.095
5.231LeuGlu: 5.231 ± 0.113
3.205LeuPhe: 3.205 ± 0.072
8.282LeuGly: 8.282 ± 0.142
1.754LeuHis: 1.754 ± 0.061
4.25LeuIle: 4.25 ± 0.09
2.523LeuLys: 2.523 ± 0.066
8.94LeuLeu: 8.94 ± 0.168
1.932LeuMet: 1.932 ± 0.055
2.432LeuAsn: 2.432 ± 0.063
5.218LeuPro: 5.218 ± 0.088
2.96LeuGln: 2.96 ± 0.061
6.947LeuArg: 6.947 ± 0.113
5.685LeuSer: 5.685 ± 0.108
5.544LeuThr: 5.544 ± 0.105
7.244LeuVal: 7.244 ± 0.127
1.141LeuTrp: 1.141 ± 0.041
1.82LeuTyr: 1.82 ± 0.06
0.0LeuXaa: 0.0 ± 0.0
Met
3.002MetAla: 3.002 ± 0.07
0.183MetCys: 0.183 ± 0.017
1.219MetAsp: 1.219 ± 0.045
1.149MetGlu: 1.149 ± 0.041
0.78MetPhe: 0.78 ± 0.035
1.733MetGly: 1.733 ± 0.057
0.437MetHis: 0.437 ± 0.027
0.938MetIle: 0.938 ± 0.036
0.728MetLys: 0.728 ± 0.033
2.199MetLeu: 2.199 ± 0.068
0.478MetMet: 0.478 ± 0.03
0.684MetAsn: 0.684 ± 0.031
1.416MetPro: 1.416 ± 0.043
0.69MetGln: 0.69 ± 0.029
1.793MetArg: 1.793 ± 0.052
1.505MetSer: 1.505 ± 0.044
1.616MetThr: 1.616 ± 0.049
1.663MetVal: 1.663 ± 0.054
0.206MetTrp: 0.206 ± 0.017
0.454MetTyr: 0.454 ± 0.03
0.0MetXaa: 0.0 ± 0.0
Asn
3.3AsnAla: 3.3 ± 0.08
0.272AsnCys: 0.272 ± 0.021
1.563AsnAsp: 1.563 ± 0.051
1.47AsnGlu: 1.47 ± 0.048
1.031AsnPhe: 1.031 ± 0.043
2.99AsnGly: 2.99 ± 0.112
0.52AsnHis: 0.52 ± 0.027
1.336AsnIle: 1.336 ± 0.051
0.625AsnLys: 0.625 ± 0.037
2.471AsnLeu: 2.471 ± 0.053
0.544AsnMet: 0.544 ± 0.024
0.903AsnAsn: 0.903 ± 0.053
1.905AsnPro: 1.905 ± 0.065
0.791AsnGln: 0.791 ± 0.038
1.793AsnArg: 1.793 ± 0.05
1.521AsnSer: 1.521 ± 0.06
1.593AsnThr: 1.593 ± 0.073
2.366AsnVal: 2.366 ± 0.078
0.419AsnTrp: 0.419 ± 0.024
0.746AsnTyr: 0.746 ± 0.03
0.0AsnXaa: 0.0 ± 0.0
Pro
6.672ProAla: 6.672 ± 0.124
0.365ProCys: 0.365 ± 0.023
3.614ProAsp: 3.614 ± 0.077
3.826ProGlu: 3.826 ± 0.09
1.983ProPhe: 1.983 ± 0.064
5.275ProGly: 5.275 ± 0.098
1.058ProHis: 1.058 ± 0.041
2.276ProIle: 2.276 ± 0.058
1.258ProLys: 1.258 ± 0.045
4.523ProLeu: 4.523 ± 0.073
1.222ProMet: 1.222 ± 0.048
1.562ProAsn: 1.562 ± 0.063
2.996ProPro: 2.996 ± 0.071
1.604ProGln: 1.604 ± 0.047
3.053ProArg: 3.053 ± 0.071
3.062ProSer: 3.062 ± 0.081
3.139ProThr: 3.139 ± 0.09
4.331ProVal: 4.331 ± 0.078
0.81ProTrp: 0.81 ± 0.037
1.252ProTyr: 1.252 ± 0.047
0.0ProXaa: 0.0 ± 0.0
Gln
3.671GlnAla: 3.671 ± 0.075
0.239GlnCys: 0.239 ± 0.021
1.455GlnAsp: 1.455 ± 0.048
1.682GlnGlu: 1.682 ± 0.042
1.195GlnPhe: 1.195 ± 0.044
2.327GlnGly: 2.327 ± 0.058
0.713GlnHis: 0.713 ± 0.034
1.469GlnIle: 1.469 ± 0.049
0.855GlnLys: 0.855 ± 0.038
3.158GlnLeu: 3.158 ± 0.083
0.822GlnMet: 0.822 ± 0.04
0.788GlnAsn: 0.788 ± 0.034
1.784GlnPro: 1.784 ± 0.051
1.317GlnGln: 1.317 ± 0.051
2.593GlnArg: 2.593 ± 0.058
1.866GlnSer: 1.866 ± 0.06
1.624GlnThr: 1.624 ± 0.056
2.41GlnVal: 2.41 ± 0.055
0.462GlnTrp: 0.462 ± 0.031
0.803GlnTyr: 0.803 ± 0.034
0.0GlnXaa: 0.0 ± 0.0
Arg
7.386ArgAla: 7.386 ± 0.126
0.522ArgCys: 0.522 ± 0.028
3.961ArgAsp: 3.961 ± 0.086
4.692ArgGlu: 4.692 ± 0.109
2.686ArgPhe: 2.686 ± 0.063
5.247ArgGly: 5.247 ± 0.108
1.491ArgHis: 1.491 ± 0.051
3.778ArgIle: 3.778 ± 0.081
1.926ArgLys: 1.926 ± 0.065
6.875ArgLeu: 6.875 ± 0.13
1.896ArgMet: 1.896 ± 0.055
1.911ArgAsn: 1.911 ± 0.06
3.489ArgPro: 3.489 ± 0.073
2.351ArgGln: 2.351 ± 0.059
5.224ArgArg: 5.224 ± 0.11
3.701ArgSer: 3.701 ± 0.08
3.676ArgThr: 3.676 ± 0.083
5.081ArgVal: 5.081 ± 0.096
1.177ArgTrp: 1.177 ± 0.04
1.792ArgTyr: 1.792 ± 0.055
0.0ArgXaa: 0.0 ± 0.0
Ser
6.616SerAla: 6.616 ± 0.122
0.511SerCys: 0.511 ± 0.027
3.298SerAsp: 3.298 ± 0.069
3.067SerGlu: 3.067 ± 0.072
2.25SerPhe: 2.25 ± 0.064
6.207SerGly: 6.207 ± 0.135
1.115SerHis: 1.115 ± 0.044
2.81SerIle: 2.81 ± 0.066
1.397SerLys: 1.397 ± 0.042
5.579SerLeu: 5.579 ± 0.089
1.443SerMet: 1.443 ± 0.047
1.586SerAsn: 1.586 ± 0.058
3.552SerPro: 3.552 ± 0.085
1.685SerGln: 1.685 ± 0.056
3.679SerArg: 3.679 ± 0.078
3.525SerSer: 3.525 ± 0.097
3.316SerThr: 3.316 ± 0.088
4.544SerVal: 4.544 ± 0.09
0.896SerTrp: 0.896 ± 0.04
1.454SerTyr: 1.454 ± 0.059
0.0SerXaa: 0.0 ± 0.0
Thr
7.011ThrAla: 7.011 ± 0.127
0.504ThrCys: 0.504 ± 0.031
2.937ThrAsp: 2.937 ± 0.066
2.662ThrGlu: 2.662 ± 0.067
2.288ThrPhe: 2.288 ± 0.067
5.75ThrGly: 5.75 ± 0.12
1.084ThrHis: 1.084 ± 0.042
3.158ThrIle: 3.158 ± 0.09
1.487ThrLys: 1.487 ± 0.049
5.705ThrLeu: 5.705 ± 0.087
1.287ThrMet: 1.287 ± 0.042
1.851ThrAsn: 1.851 ± 0.062
3.821ThrPro: 3.821 ± 0.093
1.526ThrGln: 1.526 ± 0.047
3.285ThrArg: 3.285 ± 0.068
3.579ThrSer: 3.579 ± 0.101
3.746ThrThr: 3.746 ± 0.114
5.164ThrVal: 5.164 ± 0.124
0.89ThrTrp: 0.89 ± 0.04
1.409ThrTyr: 1.409 ± 0.052
0.0ThrXaa: 0.0 ± 0.0
Val
9.902ValAla: 9.902 ± 0.148
0.689ValCys: 0.689 ± 0.031
4.29ValAsp: 4.29 ± 0.08
4.65ValGlu: 4.65 ± 0.094
2.707ValPhe: 2.707 ± 0.073
5.813ValGly: 5.813 ± 0.107
1.512ValHis: 1.512 ± 0.056
4.257ValIle: 4.257 ± 0.096
1.908ValLys: 1.908 ± 0.053
7.667ValLeu: 7.667 ± 0.139
1.745ValMet: 1.745 ± 0.058
2.279ValAsn: 2.279 ± 0.066
4.155ValPro: 4.155 ± 0.082
2.348ValGln: 2.348 ± 0.063
5.734ValArg: 5.734 ± 0.088
4.767ValSer: 4.767 ± 0.101
5.189ValThr: 5.189 ± 0.124
6.694ValVal: 6.694 ± 0.117
0.885ValTrp: 0.885 ± 0.036
1.658ValTyr: 1.658 ± 0.049
0.0ValXaa: 0.0 ± 0.0
Trp
1.416TrpAla: 1.416 ± 0.043
0.162TrpCys: 0.162 ± 0.016
0.922TrpAsp: 0.922 ± 0.037
0.824TrpGlu: 0.824 ± 0.041
0.55TrpPhe: 0.55 ± 0.031
0.946TrpGly: 0.946 ± 0.046
0.313TrpHis: 0.313 ± 0.018
0.654TrpIle: 0.654 ± 0.031
0.403TrpLys: 0.403 ± 0.023
1.593TrpLeu: 1.593 ± 0.052
0.37TrpMet: 0.37 ± 0.025
0.486TrpAsn: 0.486 ± 0.03
0.711TrpPro: 0.711 ± 0.035
0.604TrpGln: 0.604 ± 0.034
1.063TrpArg: 1.063 ± 0.043
0.928TrpSer: 0.928 ± 0.042
0.888TrpThr: 0.888 ± 0.039
0.994TrpVal: 0.994 ± 0.039
0.269TrpTrp: 0.269 ± 0.025
0.382TrpTyr: 0.382 ± 0.024
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.42TyrAla: 2.42 ± 0.06
0.284TyrCys: 0.284 ± 0.021
1.467TyrAsp: 1.467 ± 0.046
1.509TyrGlu: 1.509 ± 0.05
1.007TyrPhe: 1.007 ± 0.04
2.225TyrGly: 2.225 ± 0.059
0.516TyrHis: 0.516 ± 0.027
1.009TyrIle: 1.009 ± 0.046
0.537TyrLys: 0.537 ± 0.028
2.299TyrLeu: 2.299 ± 0.049
0.457TyrMet: 0.457 ± 0.029
0.676TyrAsn: 0.676 ± 0.035
1.149TyrPro: 1.149 ± 0.042
0.828TyrGln: 0.828 ± 0.038
1.836TyrArg: 1.836 ± 0.063
1.326TyrSer: 1.326 ± 0.044
1.29TyrThr: 1.29 ± 0.049
1.751TyrVal: 1.751 ± 0.052
0.413TyrTrp: 0.413 ± 0.026
0.598TyrTyr: 0.598 ± 0.03
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 2196 proteins (665205 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