Amino acid dipepetide frequency for Campylobacter gracilis RM3268

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
9.799AlaAla: 9.799 ± 0.157
1.512AlaCys: 1.512 ± 0.059
4.827AlaAsp: 4.827 ± 0.102
4.733AlaGlu: 4.733 ± 0.091
4.015AlaPhe: 4.015 ± 0.092
6.267AlaGly: 6.267 ± 0.109
1.605AlaHis: 1.605 ± 0.047
6.145AlaIle: 6.145 ± 0.097
7.517AlaLys: 7.517 ± 0.127
10.678AlaLeu: 10.678 ± 0.148
2.417AlaMet: 2.417 ± 0.068
4.213AlaAsn: 4.213 ± 0.091
3.119AlaPro: 3.119 ± 0.067
3.907AlaGln: 3.907 ± 0.087
5.342AlaArg: 5.342 ± 0.096
6.692AlaSer: 6.692 ± 0.116
3.617AlaThr: 3.617 ± 0.068
5.728AlaVal: 5.728 ± 0.106
0.709AlaTrp: 0.709 ± 0.034
2.761AlaTyr: 2.761 ± 0.074
0.002AlaXaa: 0.002 ± 0.001
Cys
1.696CysAla: 1.696 ± 0.051
0.2CysCys: 0.2 ± 0.018
1.06CysAsp: 1.06 ± 0.047
1.396CysGlu: 1.396 ± 0.058
0.67CysPhe: 0.67 ± 0.029
1.518CysGly: 1.518 ± 0.055
0.236CysHis: 0.236 ± 0.026
0.797CysIle: 0.797 ± 0.036
0.861CysLys: 0.861 ± 0.035
0.945CysLeu: 0.945 ± 0.036
0.272CysMet: 0.272 ± 0.023
0.406CysAsn: 0.406 ± 0.028
0.455CysPro: 0.455 ± 0.026
0.161CysGln: 0.161 ± 0.015
0.567CysArg: 0.567 ± 0.03
0.89CysSer: 0.89 ± 0.036
0.496CysThr: 0.496 ± 0.028
1.124CysVal: 1.124 ± 0.041
0.083CysTrp: 0.083 ± 0.011
0.458CysTyr: 0.458 ± 0.028
0.0CysXaa: 0.0 ± 0.0
Asp
5.399AspAla: 5.399 ± 0.096
0.657AspCys: 0.657 ± 0.033
2.913AspAsp: 2.913 ± 0.074
5.449AspGlu: 5.449 ± 0.097
3.423AspPhe: 3.423 ± 0.08
3.791AspGly: 3.791 ± 0.08
0.64AspHis: 0.64 ± 0.037
3.722AspIle: 3.722 ± 0.091
4.147AspLys: 4.147 ± 0.073
5.06AspLeu: 5.06 ± 0.085
1.305AspMet: 1.305 ± 0.046
1.684AspAsn: 1.684 ± 0.06
1.647AspPro: 1.647 ± 0.05
0.945AspGln: 0.945 ± 0.033
2.303AspArg: 2.303 ± 0.06
2.555AspSer: 2.555 ± 0.071
2.119AspThr: 2.119 ± 0.057
3.235AspVal: 3.235 ± 0.081
0.367AspTrp: 0.367 ± 0.025
2.109AspTyr: 2.109 ± 0.055
0.0AspXaa: 0.0 ± 0.0
Glu
5.16GluAla: 5.16 ± 0.093
0.703GluCys: 0.703 ± 0.032
2.564GluAsp: 2.564 ± 0.072
3.143GluGlu: 3.143 ± 0.093
4.12GluPhe: 4.12 ± 0.085
3.484GluGly: 3.484 ± 0.072
0.976GluHis: 0.976 ± 0.042
7.084GluIle: 7.084 ± 0.123
4.416GluLys: 4.416 ± 0.093
7.015GluLeu: 7.015 ± 0.12
1.425GluMet: 1.425 ± 0.046
3.611GluAsn: 3.611 ± 0.084
2.052GluPro: 2.052 ± 0.069
2.342GluGln: 2.342 ± 0.065
3.737GluArg: 3.737 ± 0.079
3.077GluSer: 3.077 ± 0.071
2.008GluThr: 2.008 ± 0.065
3.199GluVal: 3.199 ± 0.085
0.422GluTrp: 0.422 ± 0.025
2.046GluTyr: 2.046 ± 0.066
0.0GluXaa: 0.0 ± 0.0
Phe
5.522PheAla: 5.522 ± 0.095
1.19PheCys: 1.19 ± 0.039
3.4PheAsp: 3.4 ± 0.072
3.546PheGlu: 3.546 ± 0.076
2.857PhePhe: 2.857 ± 0.084
4.075PheGly: 4.075 ± 0.079
0.779PheHis: 0.779 ± 0.033
4.231PheIle: 4.231 ± 0.092
4.386PheLys: 4.386 ± 0.096
5.099PheLeu: 5.099 ± 0.106
1.535PheMet: 1.535 ± 0.049
2.373PheAsn: 2.373 ± 0.066
0.998PhePro: 0.998 ± 0.035
0.93PheGln: 0.93 ± 0.036
2.198PheArg: 2.198 ± 0.061
4.376PheSer: 4.376 ± 0.082
2.465PheThr: 2.465 ± 0.064
3.233PheVal: 3.233 ± 0.08
0.579PheTrp: 0.579 ± 0.031
2.766PheTyr: 2.766 ± 0.076
0.0PheXaa: 0.0 ± 0.0
Gly
7.776GlyAla: 7.776 ± 0.138
1.045GlyCys: 1.045 ± 0.045
3.674GlyAsp: 3.674 ± 0.07
5.401GlyGlu: 5.401 ± 0.106
3.968GlyPhe: 3.968 ± 0.079
6.019GlyGly: 6.019 ± 0.133
0.98GlyHis: 0.98 ± 0.04
5.135GlyIle: 5.135 ± 0.098
4.76GlyLys: 4.76 ± 0.107
5.913GlyLeu: 5.913 ± 0.1
1.56GlyMet: 1.56 ± 0.053
2.286GlyAsn: 2.286 ± 0.086
0.86GlyPro: 0.86 ± 0.036
1.46GlyGln: 1.46 ± 0.052
3.119GlyArg: 3.119 ± 0.086
4.392GlySer: 4.392 ± 0.1
2.719GlyThr: 2.719 ± 0.071
5.387GlyVal: 5.387 ± 0.111
0.514GlyTrp: 0.514 ± 0.028
2.606GlyTyr: 2.606 ± 0.075
0.0GlyXaa: 0.0 ± 0.0
His
1.423HisAla: 1.423 ± 0.05
0.253HisCys: 0.253 ± 0.019
0.765HisAsp: 0.765 ± 0.035
0.998HisGlu: 0.998 ± 0.04
0.896HisPhe: 0.896 ± 0.035
1.24HisGly: 1.24 ± 0.038
0.269HisHis: 0.269 ± 0.023
1.067HisIle: 1.067 ± 0.042
1.084HisLys: 1.084 ± 0.041
1.344HisLeu: 1.344 ± 0.046
0.308HisMet: 0.308 ± 0.021
0.579HisAsn: 0.579 ± 0.031
0.688HisPro: 0.688 ± 0.037
0.343HisGln: 0.343 ± 0.024
0.702HisArg: 0.702 ± 0.033
0.971HisSer: 0.971 ± 0.041
0.706HisThr: 0.706 ± 0.03
0.767HisVal: 0.767 ± 0.037
0.126HisTrp: 0.126 ± 0.015
0.576HisTyr: 0.576 ± 0.031
0.0HisXaa: 0.0 ± 0.0
Ile
7.176IleAla: 7.176 ± 0.111
1.351IleCys: 1.351 ± 0.054
4.197IleAsp: 4.197 ± 0.088
4.412IleGlu: 4.412 ± 0.084
4.362IlePhe: 4.362 ± 0.111
4.839IleGly: 4.839 ± 0.094
0.881IleHis: 0.881 ± 0.037
4.684IleIle: 4.684 ± 0.102
5.777IleLys: 5.777 ± 0.102
8.544IleLeu: 8.544 ± 0.146
1.529IleMet: 1.529 ± 0.052
3.432IleAsn: 3.432 ± 0.102
2.268IlePro: 2.268 ± 0.065
1.23IleGln: 1.23 ± 0.042
2.779IleArg: 2.779 ± 0.069
6.07IleSer: 6.07 ± 0.101
3.056IleThr: 3.056 ± 0.072
4.415IleVal: 4.415 ± 0.091
0.565IleTrp: 0.565 ± 0.028
3.376IleTyr: 3.376 ± 0.083
0.0IleXaa: 0.0 ± 0.0
Lys
5.674LysAla: 5.674 ± 0.105
0.645LysCys: 0.645 ± 0.034
4.466LysAsp: 4.466 ± 0.085
4.821LysGlu: 4.821 ± 0.105
6.742LysPhe: 6.742 ± 0.134
4.004LysGly: 4.004 ± 0.094
0.947LysHis: 0.947 ± 0.036
8.117LysIle: 8.117 ± 0.115
5.589LysLys: 5.589 ± 0.115
5.701LysLeu: 5.701 ± 0.1
1.858LysMet: 1.858 ± 0.057
4.957LysAsn: 4.957 ± 0.097
2.229LysPro: 2.229 ± 0.071
2.343LysGln: 2.343 ± 0.06
3.35LysArg: 3.35 ± 0.082
5.087LysSer: 5.087 ± 0.092
3.242LysThr: 3.242 ± 0.074
2.915LysVal: 2.915 ± 0.074
0.449LysTrp: 0.449 ± 0.029
2.288LysTyr: 2.288 ± 0.064
0.002LysXaa: 0.002 ± 0.001
Leu
9.428LeuAla: 9.428 ± 0.141
1.693LeuCys: 1.693 ± 0.052
4.73LeuAsp: 4.73 ± 0.078
4.87LeuGlu: 4.87 ± 0.084
4.66LeuPhe: 4.66 ± 0.108
7.211LeuGly: 7.211 ± 0.12
1.423LeuHis: 1.423 ± 0.056
6.845LeuIle: 6.845 ± 0.106
8.664LeuLys: 8.664 ± 0.133
8.069LeuLeu: 8.069 ± 0.158
1.942LeuMet: 1.942 ± 0.06
5.682LeuAsn: 5.682 ± 0.123
3.158LeuPro: 3.158 ± 0.075
3.036LeuGln: 3.036 ± 0.077
5.24LeuArg: 5.24 ± 0.097
8.182LeuSer: 8.182 ± 0.123
3.4LeuThr: 3.4 ± 0.081
4.723LeuVal: 4.723 ± 0.093
0.743LeuTrp: 0.743 ± 0.034
3.018LeuTyr: 3.018 ± 0.07
0.0LeuXaa: 0.0 ± 0.0
Met
1.754MetAla: 1.754 ± 0.056
0.245MetCys: 0.245 ± 0.019
1.177MetAsp: 1.177 ± 0.041
0.995MetGlu: 0.995 ± 0.042
0.924MetPhe: 0.924 ± 0.039
1.524MetGly: 1.524 ± 0.054
0.407MetHis: 0.407 ± 0.022
1.717MetIle: 1.717 ± 0.053
2.174MetLys: 2.174 ± 0.055
2.174MetLeu: 2.174 ± 0.066
0.561MetMet: 0.561 ± 0.032
0.926MetAsn: 0.926 ± 0.04
1.088MetPro: 1.088 ± 0.043
1.166MetGln: 1.166 ± 0.042
1.515MetArg: 1.515 ± 0.047
1.753MetSer: 1.753 ± 0.047
0.688MetThr: 0.688 ± 0.033
1.01MetVal: 1.01 ± 0.038
0.153MetTrp: 0.153 ± 0.017
0.452MetTyr: 0.452 ± 0.024
0.0MetXaa: 0.0 ± 0.0
Asn
4.275AsnAla: 4.275 ± 0.093
0.449AsnCys: 0.449 ± 0.027
2.346AsnAsp: 2.346 ± 0.057
3.232AsnGlu: 3.232 ± 0.084
4.061AsnPhe: 4.061 ± 0.1
3.12AsnGly: 3.12 ± 0.086
0.609AsnHis: 0.609 ± 0.026
3.146AsnIle: 3.146 ± 0.104
2.664AsnLys: 2.664 ± 0.068
5.859AsnLeu: 5.859 ± 0.113
0.834AsnMet: 0.834 ± 0.036
1.578AsnAsn: 1.578 ± 0.067
1.846AsnPro: 1.846 ± 0.06
1.016AsnGln: 1.016 ± 0.041
1.813AsnArg: 1.813 ± 0.05
4.197AsnSer: 4.197 ± 0.136
1.789AsnThr: 1.789 ± 0.061
2.369AsnVal: 2.369 ± 0.066
0.272AsnTrp: 0.272 ± 0.02
1.712AsnTyr: 1.712 ± 0.055
0.0AsnXaa: 0.0 ± 0.0
Pro
2.766ProAla: 2.766 ± 0.073
0.358ProCys: 0.358 ± 0.023
1.287ProAsp: 1.287 ± 0.046
1.539ProGlu: 1.539 ± 0.055
1.721ProPhe: 1.721 ± 0.049
1.479ProGly: 1.479 ± 0.049
0.725ProHis: 0.725 ± 0.033
2.08ProIle: 2.08 ± 0.059
2.425ProLys: 2.425 ± 0.066
3.096ProLeu: 3.096 ± 0.076
0.607ProMet: 0.607 ± 0.028
1.502ProAsn: 1.502 ± 0.053
0.965ProPro: 0.965 ± 0.043
1.532ProGln: 1.532 ± 0.051
1.67ProArg: 1.67 ± 0.052
2.313ProSer: 2.313 ± 0.063
1.266ProThr: 1.266 ± 0.045
1.879ProVal: 1.879 ± 0.054
0.245ProTrp: 0.245 ± 0.017
1.195ProTyr: 1.195 ± 0.047
0.0ProXaa: 0.0 ± 0.0
Gln
2.155GlnAla: 2.155 ± 0.054
0.269GlnCys: 0.269 ± 0.021
1.53GlnAsp: 1.53 ± 0.058
1.505GlnGlu: 1.505 ± 0.056
0.837GlnPhe: 0.837 ± 0.038
1.801GlnGly: 1.801 ± 0.051
0.331GlnHis: 0.331 ± 0.025
3.244GlnIle: 3.244 ± 0.076
2.706GlnLys: 2.706 ± 0.068
1.831GlnLeu: 1.831 ± 0.063
0.731GlnMet: 0.731 ± 0.037
3.107GlnAsn: 3.107 ± 0.097
0.734GlnPro: 0.734 ± 0.034
0.709GlnGln: 0.709 ± 0.037
1.503GlnArg: 1.503 ± 0.053
2.446GlnSer: 2.446 ± 0.073
1.455GlnThr: 1.455 ± 0.054
1.186GlnVal: 1.186 ± 0.041
0.177GlnTrp: 0.177 ± 0.016
0.616GlnTyr: 0.616 ± 0.032
0.0GlnXaa: 0.0 ± 0.0
Arg
5.063ArgAla: 5.063 ± 0.097
0.666ArgCys: 0.666 ± 0.037
2.643ArgAsp: 2.643 ± 0.071
3.51ArgGlu: 3.51 ± 0.074
2.379ArgPhe: 2.379 ± 0.063
3.408ArgGly: 3.408 ± 0.071
0.756ArgHis: 0.756 ± 0.032
3.493ArgIle: 3.493 ± 0.076
3.107ArgLys: 3.107 ± 0.076
4.64ArgLeu: 4.64 ± 0.092
1.114ArgMet: 1.114 ± 0.039
2.237ArgAsn: 2.237 ± 0.066
1.306ArgPro: 1.306 ± 0.05
1.338ArgGln: 1.338 ± 0.045
2.8ArgArg: 2.8 ± 0.073
3.08ArgSer: 3.08 ± 0.073
1.879ArgThr: 1.879 ± 0.052
2.967ArgVal: 2.967 ± 0.067
0.316ArgTrp: 0.316 ± 0.023
1.823ArgTyr: 1.823 ± 0.061
0.0ArgXaa: 0.0 ± 0.0
Ser
7.346SerAla: 7.346 ± 0.141
0.98SerCys: 0.98 ± 0.042
3.881SerAsp: 3.881 ± 0.082
4.831SerGlu: 4.831 ± 0.103
3.896SerPhe: 3.896 ± 0.083
5.936SerGly: 5.936 ± 0.114
1.081SerHis: 1.081 ± 0.039
3.974SerIle: 3.974 ± 0.095
5.223SerLys: 5.223 ± 0.106
6.811SerLeu: 6.811 ± 0.112
1.342SerMet: 1.342 ± 0.048
2.722SerAsn: 2.722 ± 0.072
2.011SerPro: 2.011 ± 0.055
1.99SerGln: 1.99 ± 0.061
3.175SerArg: 3.175 ± 0.073
4.962SerSer: 4.962 ± 0.102
2.688SerThr: 2.688 ± 0.061
4.509SerVal: 4.509 ± 0.078
0.523SerTrp: 0.523 ± 0.026
2.336SerTyr: 2.336 ± 0.06
0.002SerXaa: 0.002 ± 0.002
Thr
3.968ThrAla: 3.968 ± 0.078
0.427ThrCys: 0.427 ± 0.026
2.283ThrAsp: 2.283 ± 0.066
1.865ThrGlu: 1.865 ± 0.059
1.496ThrPhe: 1.496 ± 0.05
2.814ThrGly: 2.814 ± 0.071
0.884ThrHis: 0.884 ± 0.037
2.841ThrIle: 2.841 ± 0.084
2.718ThrLys: 2.718 ± 0.06
4.033ThrLeu: 4.033 ± 0.077
0.812ThrMet: 0.812 ± 0.033
1.744ThrAsn: 1.744 ± 0.061
1.998ThrPro: 1.998 ± 0.055
1.571ThrGln: 1.571 ± 0.057
1.807ThrArg: 1.807 ± 0.053
2.618ThrSer: 2.618 ± 0.063
1.829ThrThr: 1.829 ± 0.066
1.793ThrVal: 1.793 ± 0.055
0.278ThrTrp: 0.278 ± 0.024
1.32ThrTyr: 1.32 ± 0.054
0.0ThrXaa: 0.0 ± 0.0
Val
5.314ValAla: 5.314 ± 0.097
1.043ValCys: 1.043 ± 0.046
2.791ValAsp: 2.791 ± 0.076
3.006ValGlu: 3.006 ± 0.087
2.91ValPhe: 2.91 ± 0.065
3.919ValGly: 3.919 ± 0.079
0.836ValHis: 0.836 ± 0.036
4.015ValIle: 4.015 ± 0.093
4.207ValLys: 4.207 ± 0.091
5.855ValLeu: 5.855 ± 0.118
1.396ValMet: 1.396 ± 0.043
2.479ValAsn: 2.479 ± 0.064
1.96ValPro: 1.96 ± 0.052
1.631ValGln: 1.631 ± 0.053
2.955ValArg: 2.955 ± 0.063
4.15ValSer: 4.15 ± 0.086
2.106ValThr: 2.106 ± 0.069
3.8ValVal: 3.8 ± 0.081
0.49ValTrp: 0.49 ± 0.031
1.738ValTyr: 1.738 ± 0.054
0.0ValXaa: 0.0 ± 0.0
Trp
0.612TrpAla: 0.612 ± 0.032
0.123TrpCys: 0.123 ± 0.013
0.454TrpAsp: 0.454 ± 0.029
0.367TrpGlu: 0.367 ± 0.022
0.344TrpPhe: 0.344 ± 0.026
0.547TrpGly: 0.547 ± 0.034
0.191TrpHis: 0.191 ± 0.017
0.583TrpIle: 0.583 ± 0.032
0.32TrpLys: 0.32 ± 0.023
0.903TrpLeu: 0.903 ± 0.043
0.21TrpMet: 0.21 ± 0.02
0.31TrpAsn: 0.31 ± 0.023
0.117TrpPro: 0.117 ± 0.013
0.371TrpGln: 0.371 ± 0.025
0.454TrpArg: 0.454 ± 0.025
0.406TrpSer: 0.406 ± 0.025
0.242TrpThr: 0.242 ± 0.019
0.385TrpVal: 0.385 ± 0.023
0.111TrpTrp: 0.111 ± 0.012
0.313TrpTyr: 0.313 ± 0.02
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.299TyrAla: 3.299 ± 0.08
0.483TyrCys: 0.483 ± 0.027
2.482TyrAsp: 2.482 ± 0.069
2.966TyrGlu: 2.966 ± 0.073
2.256TyrPhe: 2.256 ± 0.067
2.581TyrGly: 2.581 ± 0.06
0.549TyrHis: 0.549 ± 0.031
2.019TyrIle: 2.019 ± 0.063
2.682TyrLys: 2.682 ± 0.07
3.146TyrLeu: 3.146 ± 0.084
0.645TyrMet: 0.645 ± 0.029
1.362TyrAsn: 1.362 ± 0.054
1.148TyrPro: 1.148 ± 0.046
0.851TyrGln: 0.851 ± 0.037
1.496TyrArg: 1.496 ± 0.048
2.002TyrSer: 2.002 ± 0.071
1.327TyrThr: 1.327 ± 0.048
1.977TyrVal: 1.977 ± 0.051
0.241TyrTrp: 0.241 ± 0.018
1.32TyrTyr: 1.32 ± 0.052
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
0.002XaaHis: 0.002 ± 0.002
0.002XaaIle: 0.002 ± 0.001
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
0.002XaaSer: 0.002 ± 0.001
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 2846 proteins (665280 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