Amino acid dipepetide frequency for Salinisphaera japonica YTM-1

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
18.036AlaAla: 18.036 ± 0.22
1.254AlaCys: 1.254 ± 0.052
9.606AlaAsp: 9.606 ± 0.171
7.573AlaGlu: 7.573 ± 0.121
4.139AlaPhe: 4.139 ± 0.065
12.135AlaGly: 12.135 ± 0.163
2.994AlaHis: 2.994 ± 0.075
6.256AlaIle: 6.256 ± 0.07
3.161AlaLys: 3.161 ± 0.08
14.008AlaLeu: 14.008 ± 0.185
3.213AlaMet: 3.213 ± 0.07
3.298AlaAsn: 3.298 ± 0.118
6.057AlaPro: 6.057 ± 0.1
4.195AlaGln: 4.195 ± 0.073
10.452AlaArg: 10.452 ± 0.146
6.315AlaSer: 6.315 ± 0.114
7.117AlaThr: 7.117 ± 0.145
8.644AlaVal: 8.644 ± 0.104
1.925AlaTrp: 1.925 ± 0.057
2.968AlaTyr: 2.968 ± 0.07
0.0AlaXaa: 0.0 ± 0.0
Cys
0.948CysAla: 0.948 ± 0.037
0.118CysCys: 0.118 ± 0.013
0.628CysAsp: 0.628 ± 0.033
0.483CysGlu: 0.483 ± 0.021
0.337CysPhe: 0.337 ± 0.017
0.877CysGly: 0.877 ± 0.031
0.283CysHis: 0.283 ± 0.021
0.41CysIle: 0.41 ± 0.023
0.164CysLys: 0.164 ± 0.013
0.906CysLeu: 0.906 ± 0.033
0.184CysMet: 0.184 ± 0.015
0.229CysAsn: 0.229 ± 0.015
0.484CysPro: 0.484 ± 0.036
0.311CysGln: 0.311 ± 0.02
0.643CysArg: 0.643 ± 0.035
0.436CysSer: 0.436 ± 0.026
0.395CysThr: 0.395 ± 0.022
0.727CysVal: 0.727 ± 0.029
0.101CysTrp: 0.101 ± 0.01
0.228CysTyr: 0.228 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
8.152AspAla: 8.152 ± 0.148
0.539AspCys: 0.539 ± 0.026
5.082AspAsp: 5.082 ± 0.11
3.788AspGlu: 3.788 ± 0.085
2.241AspPhe: 2.241 ± 0.051
5.419AspGly: 5.419 ± 0.242
1.529AspHis: 1.529 ± 0.044
3.616AspIle: 3.616 ± 0.073
2.053AspLys: 2.053 ± 0.063
5.746AspLeu: 5.746 ± 0.093
1.606AspMet: 1.606 ± 0.043
2.348AspAsn: 2.348 ± 0.116
2.92AspPro: 2.92 ± 0.079
2.261AspGln: 2.261 ± 0.056
4.449AspArg: 4.449 ± 0.098
2.848AspSer: 2.848 ± 0.067
4.575AspThr: 4.575 ± 0.132
4.552AspVal: 4.552 ± 0.07
1.166AspTrp: 1.166 ± 0.036
2.06AspTyr: 2.06 ± 0.056
0.0AspXaa: 0.0 ± 0.0
Glu
7.257GluAla: 7.257 ± 0.118
0.359GluCys: 0.359 ± 0.021
2.53GluAsp: 2.53 ± 0.065
1.887GluGlu: 1.887 ± 0.066
1.421GluPhe: 1.421 ± 0.048
3.054GluGly: 3.054 ± 0.066
1.47GluHis: 1.47 ± 0.042
3.084GluIle: 3.084 ± 0.069
1.577GluLys: 1.577 ± 0.049
4.905GluLeu: 4.905 ± 0.096
1.254GluMet: 1.254 ± 0.043
1.535GluAsn: 1.535 ± 0.046
2.431GluPro: 2.431 ± 0.063
2.366GluGln: 2.366 ± 0.063
4.83GluArg: 4.83 ± 0.108
2.551GluSer: 2.551 ± 0.056
3.347GluThr: 3.347 ± 0.07
3.052GluVal: 3.052 ± 0.081
0.607GluTrp: 0.607 ± 0.026
1.151GluTyr: 1.151 ± 0.036
0.0GluXaa: 0.0 ± 0.0
Phe
4.127PheAla: 4.127 ± 0.076
0.376PheCys: 0.376 ± 0.018
2.796PheAsp: 2.796 ± 0.073
2.019PheGlu: 2.019 ± 0.048
1.355PhePhe: 1.355 ± 0.051
3.256PheGly: 3.256 ± 0.073
0.697PheHis: 0.697 ± 0.028
1.678PheIle: 1.678 ± 0.053
0.962PheLys: 0.962 ± 0.038
2.581PheLeu: 2.581 ± 0.063
0.816PheMet: 0.816 ± 0.03
1.125PheAsn: 1.125 ± 0.042
1.241PhePro: 1.241 ± 0.038
0.917PheGln: 0.917 ± 0.037
1.68PheArg: 1.68 ± 0.036
2.016PheSer: 2.016 ± 0.049
1.956PheThr: 1.956 ± 0.068
2.958PheVal: 2.958 ± 0.066
0.53PheTrp: 0.53 ± 0.027
0.939PheTyr: 0.939 ± 0.04
0.0PheXaa: 0.0 ± 0.0
Gly
9.439GlyAla: 9.439 ± 0.138
0.923GlyCys: 0.923 ± 0.033
5.172GlyAsp: 5.172 ± 0.132
4.175GlyGlu: 4.175 ± 0.069
3.257GlyPhe: 3.257 ± 0.068
6.773GlyGly: 6.773 ± 0.124
2.203GlyHis: 2.203 ± 0.054
4.181GlyIle: 4.181 ± 0.07
2.347GlyLys: 2.347 ± 0.071
9.393GlyLeu: 9.393 ± 0.121
2.291GlyMet: 2.291 ± 0.052
2.235GlyAsn: 2.235 ± 0.079
3.367GlyPro: 3.367 ± 0.062
3.723GlyGln: 3.723 ± 0.101
5.603GlyArg: 5.603 ± 0.094
3.98GlySer: 3.98 ± 0.09
4.294GlyThr: 4.294 ± 0.098
6.466GlyVal: 6.466 ± 0.09
1.41GlyTrp: 1.41 ± 0.045
2.544GlyTyr: 2.544 ± 0.052
0.0GlyXaa: 0.0 ± 0.0
His
2.961HisAla: 2.961 ± 0.069
0.276HisCys: 0.276 ± 0.018
1.631HisAsp: 1.631 ± 0.046
1.278HisGlu: 1.278 ± 0.041
0.737HisPhe: 0.737 ± 0.031
2.256HisGly: 2.256 ± 0.062
0.686HisHis: 0.686 ± 0.03
1.067HisIle: 1.067 ± 0.035
0.482HisLys: 0.482 ± 0.026
2.169HisLeu: 2.169 ± 0.059
0.512HisMet: 0.512 ± 0.026
0.56HisAsn: 0.56 ± 0.024
1.292HisPro: 1.292 ± 0.042
0.655HisGln: 0.655 ± 0.029
1.733HisArg: 1.733 ± 0.052
0.868HisSer: 0.868 ± 0.035
1.06HisThr: 1.06 ± 0.04
1.852HisVal: 1.852 ± 0.049
0.408HisTrp: 0.408 ± 0.021
0.689HisTyr: 0.689 ± 0.027
0.0HisXaa: 0.0 ± 0.0
Ile
7.555IleAla: 7.555 ± 0.093
0.483IleCys: 0.483 ± 0.023
4.539IleAsp: 4.539 ± 0.081
3.63IleGlu: 3.63 ± 0.074
1.456IlePhe: 1.456 ± 0.049
5.078IleGly: 5.078 ± 0.085
1.092IleHis: 1.092 ± 0.038
2.023IleIle: 2.023 ± 0.052
1.445IleLys: 1.445 ± 0.049
3.29IleLeu: 3.29 ± 0.068
0.928IleMet: 0.928 ± 0.032
1.598IleAsn: 1.598 ± 0.046
1.915IlePro: 1.915 ± 0.049
1.537IleGln: 1.537 ± 0.044
3.065IleArg: 3.065 ± 0.069
2.487IleSer: 2.487 ± 0.052
2.987IleThr: 2.987 ± 0.087
4.028IleVal: 4.028 ± 0.071
0.534IleTrp: 0.534 ± 0.025
1.207IleTyr: 1.207 ± 0.037
0.0IleXaa: 0.0 ± 0.0
Lys
3.426LysAla: 3.426 ± 0.081
0.117LysCys: 0.117 ± 0.011
1.348LysAsp: 1.348 ± 0.046
0.974LysGlu: 0.974 ± 0.046
0.63LysPhe: 0.63 ± 0.029
1.649LysGly: 1.649 ± 0.055
0.658LysHis: 0.658 ± 0.028
1.446LysIle: 1.446 ± 0.046
1.269LysLys: 1.269 ± 0.052
2.402LysLeu: 2.402 ± 0.064
0.579LysMet: 0.579 ± 0.026
0.947LysAsn: 0.947 ± 0.039
1.639LysPro: 1.639 ± 0.053
1.184LysGln: 1.184 ± 0.036
2.364LysArg: 2.364 ± 0.065
1.428LysSer: 1.428 ± 0.05
1.985LysThr: 1.985 ± 0.052
1.423LysVal: 1.423 ± 0.053
0.264LysTrp: 0.264 ± 0.02
0.575LysTyr: 0.575 ± 0.026
0.0LysXaa: 0.0 ± 0.0
Leu
15.807LeuAla: 15.807 ± 0.204
0.898LeuCys: 0.898 ± 0.037
6.498LeuAsp: 6.498 ± 0.094
4.426LeuGlu: 4.426 ± 0.08
3.518LeuPhe: 3.518 ± 0.087
8.198LeuGly: 8.198 ± 0.104
1.909LeuHis: 1.909 ± 0.052
5.15LeuIle: 5.15 ± 0.092
2.605LeuLys: 2.605 ± 0.067
8.658LeuLeu: 8.658 ± 0.16
2.232LeuMet: 2.232 ± 0.054
2.463LeuAsn: 2.463 ± 0.052
4.841LeuPro: 4.841 ± 0.081
2.358LeuGln: 2.358 ± 0.056
5.934LeuArg: 5.934 ± 0.107
6.051LeuSer: 6.051 ± 0.089
5.452LeuThr: 5.452 ± 0.093
7.757LeuVal: 7.757 ± 0.123
1.211LeuTrp: 1.211 ± 0.045
2.3LeuTyr: 2.3 ± 0.057
0.0LeuXaa: 0.0 ± 0.0
Met
3.311MetAla: 3.311 ± 0.067
0.174MetCys: 0.174 ± 0.016
1.215MetAsp: 1.215 ± 0.038
0.763MetGlu: 0.763 ± 0.037
0.683MetPhe: 0.683 ± 0.027
1.747MetGly: 1.747 ± 0.048
0.525MetHis: 0.525 ± 0.024
1.366MetIle: 1.366 ± 0.04
0.717MetLys: 0.717 ± 0.026
2.233MetLeu: 2.233 ± 0.054
0.545MetMet: 0.545 ± 0.029
0.783MetAsn: 0.783 ± 0.031
1.416MetPro: 1.416 ± 0.038
0.917MetGln: 0.917 ± 0.034
1.693MetArg: 1.693 ± 0.051
1.77MetSer: 1.77 ± 0.05
1.671MetThr: 1.671 ± 0.048
1.336MetVal: 1.336 ± 0.037
0.176MetTrp: 0.176 ± 0.013
0.326MetTyr: 0.326 ± 0.021
0.0MetXaa: 0.0 ± 0.0
Asn
3.623AsnAla: 3.623 ± 0.075
0.241AsnCys: 0.241 ± 0.03
2.102AsnAsp: 2.102 ± 0.161
1.359AsnGlu: 1.359 ± 0.037
0.886AsnPhe: 0.886 ± 0.032
2.448AsnGly: 2.448 ± 0.138
0.53AsnHis: 0.53 ± 0.027
1.338AsnIle: 1.338 ± 0.04
0.833AsnLys: 0.833 ± 0.031
2.399AsnLeu: 2.399 ± 0.051
0.606AsnMet: 0.606 ± 0.025
0.992AsnAsn: 0.992 ± 0.049
1.67AsnPro: 1.67 ± 0.045
1.054AsnGln: 1.054 ± 0.036
1.82AsnArg: 1.82 ± 0.046
1.142AsnSer: 1.142 ± 0.038
1.745AsnThr: 1.745 ± 0.064
2.068AsnVal: 2.068 ± 0.071
0.367AsnTrp: 0.367 ± 0.02
0.671AsnTyr: 0.671 ± 0.028
0.0AsnXaa: 0.0 ± 0.0
Pro
6.768ProAla: 6.768 ± 0.114
0.326ProCys: 0.326 ± 0.02
3.724ProAsp: 3.724 ± 0.078
3.17ProGlu: 3.17 ± 0.074
1.471ProPhe: 1.471 ± 0.042
4.633ProGly: 4.633 ± 0.072
0.918ProHis: 0.918 ± 0.034
2.307ProIle: 2.307 ± 0.047
1.229ProLys: 1.229 ± 0.038
4.096ProLeu: 4.096 ± 0.066
1.152ProMet: 1.152 ± 0.036
1.288ProAsn: 1.288 ± 0.045
2.054ProPro: 2.054 ± 0.045
1.363ProGln: 1.363 ± 0.04
2.925ProArg: 2.925 ± 0.064
2.406ProSer: 2.406 ± 0.047
2.431ProThr: 2.431 ± 0.058
3.879ProVal: 3.879 ± 0.072
0.707ProTrp: 0.707 ± 0.029
1.109ProTyr: 1.109 ± 0.043
0.0ProXaa: 0.0 ± 0.0
Gln
5.417GlnAla: 5.417 ± 0.085
0.243GlnCys: 0.243 ± 0.017
1.553GlnAsp: 1.553 ± 0.044
1.103GlnGlu: 1.103 ± 0.041
1.016GlnPhe: 1.016 ± 0.033
2.565GlnGly: 2.565 ± 0.07
0.786GlnHis: 0.786 ± 0.029
1.995GlnIle: 1.995 ± 0.046
0.919GlnLys: 0.919 ± 0.036
3.322GlnLeu: 3.322 ± 0.062
0.83GlnMet: 0.83 ± 0.029
0.951GlnAsn: 0.951 ± 0.037
1.888GlnPro: 1.888 ± 0.046
1.473GlnGln: 1.473 ± 0.047
3.056GlnArg: 3.056 ± 0.072
1.937GlnSer: 1.937 ± 0.053
2.159GlnThr: 2.159 ± 0.059
2.303GlnVal: 2.303 ± 0.066
0.451GlnTrp: 0.451 ± 0.02
0.831GlnTyr: 0.831 ± 0.034
0.0GlnXaa: 0.0 ± 0.0
Arg
8.646ArgAla: 8.646 ± 0.128
0.624ArgCys: 0.624 ± 0.026
4.643ArgAsp: 4.643 ± 0.072
3.891ArgGlu: 3.891 ± 0.087
2.826ArgPhe: 2.826 ± 0.058
4.864ArgGly: 4.864 ± 0.074
1.893ArgHis: 1.893 ± 0.054
3.781ArgIle: 3.781 ± 0.07
1.545ArgLys: 1.545 ± 0.048
8.669ArgLeu: 8.669 ± 0.133
1.746ArgMet: 1.746 ± 0.049
1.613ArgAsn: 1.613 ± 0.046
3.158ArgPro: 3.158 ± 0.064
2.809ArgGln: 2.809 ± 0.063
5.726ArgArg: 5.726 ± 0.119
3.121ArgSer: 3.121 ± 0.06
2.922ArgThr: 2.922 ± 0.052
5.228ArgVal: 5.228 ± 0.074
1.155ArgTrp: 1.155 ± 0.036
2.266ArgTyr: 2.266 ± 0.052
0.0ArgXaa: 0.0 ± 0.0
Ser
6.656SerAla: 6.656 ± 0.099
0.391SerCys: 0.391 ± 0.025
3.228SerAsp: 3.228 ± 0.088
2.385SerGlu: 2.385 ± 0.055
1.83SerPhe: 1.83 ± 0.052
4.703SerGly: 4.703 ± 0.074
1.13SerHis: 1.13 ± 0.035
2.497SerIle: 2.497 ± 0.053
1.276SerLys: 1.276 ± 0.038
5.0SerLeu: 5.0 ± 0.091
1.312SerMet: 1.312 ± 0.04
1.48SerAsn: 1.48 ± 0.043
2.447SerPro: 2.447 ± 0.056
2.065SerGln: 2.065 ± 0.055
3.621SerArg: 3.621 ± 0.068
2.616SerSer: 2.616 ± 0.066
2.492SerThr: 2.492 ± 0.058
3.67SerVal: 3.67 ± 0.089
0.661SerTrp: 0.661 ± 0.026
1.244SerTyr: 1.244 ± 0.058
0.0SerXaa: 0.0 ± 0.0
Thr
6.932ThrAla: 6.932 ± 0.182
0.412ThrCys: 0.412 ± 0.024
3.556ThrAsp: 3.556 ± 0.104
2.494ThrGlu: 2.494 ± 0.052
1.674ThrPhe: 1.674 ± 0.048
5.42ThrGly: 5.42 ± 0.107
1.314ThrHis: 1.314 ± 0.043
2.772ThrIle: 2.772 ± 0.078
1.134ThrLys: 1.134 ± 0.039
6.556ThrLeu: 6.556 ± 0.103
1.029ThrMet: 1.029 ± 0.036
1.302ThrAsn: 1.302 ± 0.053
3.636ThrPro: 3.636 ± 0.057
1.858ThrGln: 1.858 ± 0.048
4.028ThrArg: 4.028 ± 0.07
2.671ThrSer: 2.671 ± 0.06
3.257ThrThr: 3.257 ± 0.09
4.236ThrVal: 4.236 ± 0.131
0.616ThrTrp: 0.616 ± 0.026
1.248ThrTyr: 1.248 ± 0.045
0.0ThrXaa: 0.0 ± 0.0
Val
10.063ValAla: 10.063 ± 0.146
0.728ValCys: 0.728 ± 0.027
4.734ValAsp: 4.734 ± 0.076
3.632ValGlu: 3.632 ± 0.081
3.067ValPhe: 3.067 ± 0.058
5.539ValGly: 5.539 ± 0.087
1.508ValHis: 1.508 ± 0.044
4.143ValIle: 4.143 ± 0.078
1.65ValLys: 1.65 ± 0.052
7.291ValLeu: 7.291 ± 0.102
1.742ValMet: 1.742 ± 0.044
2.09ValAsn: 2.09 ± 0.074
3.54ValPro: 3.54 ± 0.062
1.839ValGln: 1.839 ± 0.043
4.145ValArg: 4.145 ± 0.078
4.089ValSer: 4.089 ± 0.077
4.333ValThr: 4.333 ± 0.135
5.863ValVal: 5.863 ± 0.101
0.949ValTrp: 0.949 ± 0.033
1.747ValTyr: 1.747 ± 0.044
0.0ValXaa: 0.0 ± 0.0
Trp
1.536TrpAla: 1.536 ± 0.046
0.155TrpCys: 0.155 ± 0.012
0.536TrpAsp: 0.536 ± 0.026
0.38TrpGlu: 0.38 ± 0.018
0.496TrpPhe: 0.496 ± 0.025
0.821TrpGly: 0.821 ± 0.032
0.473TrpHis: 0.473 ± 0.024
0.713TrpIle: 0.713 ± 0.028
0.263TrpLys: 0.263 ± 0.017
2.114TrpLeu: 2.114 ± 0.056
0.325TrpMet: 0.325 ± 0.02
0.344TrpAsn: 0.344 ± 0.021
0.803TrpPro: 0.803 ± 0.03
0.918TrpGln: 0.918 ± 0.034
1.197TrpArg: 1.197 ± 0.039
0.71TrpSer: 0.71 ± 0.029
0.646TrpThr: 0.646 ± 0.03
0.934TrpVal: 0.934 ± 0.038
0.245TrpTrp: 0.245 ± 0.017
0.297TrpTyr: 0.297 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.686TyrAla: 2.686 ± 0.063
0.254TyrCys: 0.254 ± 0.019
1.83TyrAsp: 1.83 ± 0.05
1.26TyrGlu: 1.26 ± 0.041
0.986TyrPhe: 0.986 ± 0.035
2.339TyrGly: 2.339 ± 0.048
0.573TyrHis: 0.573 ± 0.025
1.054TyrIle: 1.054 ± 0.039
0.678TyrLys: 0.678 ± 0.03
2.526TyrLeu: 2.526 ± 0.058
0.465TyrMet: 0.465 ± 0.026
0.714TyrAsn: 0.714 ± 0.03
1.156TyrPro: 1.156 ± 0.035
0.994TyrGln: 0.994 ± 0.036
2.163TyrArg: 2.163 ± 0.049
1.263TyrSer: 1.263 ± 0.042
1.322TyrThr: 1.322 ± 0.053
1.715TyrVal: 1.715 ± 0.042
0.423TyrTrp: 0.423 ± 0.021
0.723TyrTyr: 0.723 ± 0.033
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 2932 proteins (946517 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