Amino acid dipepetide frequency for Cellvibrio sp. PSBB006

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
9.603AlaAla: 9.603 ± 0.13
0.995AlaCys: 0.995 ± 0.027
5.632AlaAsp: 5.632 ± 0.073
6.104AlaGlu: 6.104 ± 0.08
3.37AlaPhe: 3.37 ± 0.048
7.025AlaGly: 7.025 ± 0.09
1.913AlaHis: 1.913 ± 0.037
5.633AlaIle: 5.633 ± 0.068
3.575AlaLys: 3.575 ± 0.058
10.076AlaLeu: 10.076 ± 0.104
2.406AlaMet: 2.406 ± 0.043
3.676AlaAsn: 3.676 ± 0.059
3.546AlaPro: 3.546 ± 0.057
4.406AlaGln: 4.406 ± 0.074
5.171AlaArg: 5.171 ± 0.08
5.817AlaSer: 5.817 ± 0.075
4.945AlaThr: 4.945 ± 0.066
6.558AlaVal: 6.558 ± 0.065
1.213AlaTrp: 1.213 ± 0.027
2.596AlaTyr: 2.596 ± 0.046
0.0AlaXaa: 0.0 ± 0.0
Cys
0.842CysAla: 0.842 ± 0.023
0.149CysCys: 0.149 ± 0.009
0.533CysAsp: 0.533 ± 0.021
0.522CysGlu: 0.522 ± 0.02
0.397CysPhe: 0.397 ± 0.016
0.851CysGly: 0.851 ± 0.028
0.289CysHis: 0.289 ± 0.014
0.517CysIle: 0.517 ± 0.02
0.33CysLys: 0.33 ± 0.015
0.928CysLeu: 0.928 ± 0.025
0.181CysMet: 0.181 ± 0.012
0.371CysAsn: 0.371 ± 0.016
0.416CysPro: 0.416 ± 0.02
0.344CysGln: 0.344 ± 0.016
0.501CysArg: 0.501 ± 0.018
0.624CysSer: 0.624 ± 0.024
0.461CysThr: 0.461 ± 0.018
0.641CysVal: 0.641 ± 0.022
0.142CysTrp: 0.142 ± 0.009
0.311CysTyr: 0.311 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
5.403AspAla: 5.403 ± 0.073
0.495AspCys: 0.495 ± 0.021
3.341AspAsp: 3.341 ± 0.055
3.739AspGlu: 3.739 ± 0.054
2.559AspPhe: 2.559 ± 0.048
4.408AspGly: 4.408 ± 0.078
1.207AspHis: 1.207 ± 0.028
4.06AspIle: 4.06 ± 0.066
2.474AspLys: 2.474 ± 0.056
5.496AspLeu: 5.496 ± 0.066
1.365AspMet: 1.365 ± 0.032
2.579AspAsn: 2.579 ± 0.051
2.502AspPro: 2.502 ± 0.049
2.244AspGln: 2.244 ± 0.039
2.668AspArg: 2.668 ± 0.047
3.23AspSer: 3.23 ± 0.049
2.921AspThr: 2.921 ± 0.058
4.156AspVal: 4.156 ± 0.055
0.967AspTrp: 0.967 ± 0.028
2.176AspTyr: 2.176 ± 0.04
0.0AspXaa: 0.0 ± 0.0
Glu
5.389GluAla: 5.389 ± 0.075
0.415GluCys: 0.415 ± 0.016
2.994GluAsp: 2.994 ± 0.047
3.428GluGlu: 3.428 ± 0.06
2.327GluPhe: 2.327 ± 0.044
3.6GluGly: 3.6 ± 0.045
1.459GluHis: 1.459 ± 0.035
3.418GluIle: 3.418 ± 0.061
3.23GluLys: 3.23 ± 0.054
6.361GluLeu: 6.361 ± 0.076
1.43GluMet: 1.43 ± 0.029
2.532GluAsn: 2.532 ± 0.043
2.299GluPro: 2.299 ± 0.048
3.397GluGln: 3.397 ± 0.061
3.638GluArg: 3.638 ± 0.06
3.332GluSer: 3.332 ± 0.055
3.131GluThr: 3.131 ± 0.049
3.743GluVal: 3.743 ± 0.052
0.876GluTrp: 0.876 ± 0.025
1.779GluTyr: 1.779 ± 0.037
0.0GluXaa: 0.0 ± 0.0
Phe
3.623PheAla: 3.623 ± 0.05
0.455PheCys: 0.455 ± 0.02
2.659PheAsp: 2.659 ± 0.047
2.154PheGlu: 2.154 ± 0.045
1.804PhePhe: 1.804 ± 0.045
2.958PheGly: 2.958 ± 0.053
0.898PheHis: 0.898 ± 0.023
2.52PheIle: 2.52 ± 0.044
1.474PheLys: 1.474 ± 0.029
3.527PheLeu: 3.527 ± 0.065
0.959PheMet: 0.959 ± 0.029
1.946PheAsn: 1.946 ± 0.04
1.535PhePro: 1.535 ± 0.035
1.246PheGln: 1.246 ± 0.031
1.798PheArg: 1.798 ± 0.033
3.169PheSer: 3.169 ± 0.051
2.43PheThr: 2.43 ± 0.042
2.62PheVal: 2.62 ± 0.048
0.6PheTrp: 0.6 ± 0.021
1.435PheTyr: 1.435 ± 0.034
0.0PheXaa: 0.0 ± 0.0
Gly
5.901GlyAla: 5.901 ± 0.067
0.795GlyCys: 0.795 ± 0.025
4.21GlyAsp: 4.21 ± 0.075
4.386GlyGlu: 4.386 ± 0.062
3.308GlyPhe: 3.308 ± 0.055
5.713GlyGly: 5.713 ± 0.141
1.555GlyHis: 1.555 ± 0.038
4.419GlyIle: 4.419 ± 0.063
3.488GlyLys: 3.488 ± 0.05
6.9GlyLeu: 6.9 ± 0.069
1.883GlyMet: 1.883 ± 0.044
3.153GlyAsn: 3.153 ± 0.079
1.934GlyPro: 1.934 ± 0.037
2.749GlyGln: 2.749 ± 0.043
3.525GlyArg: 3.525 ± 0.056
4.523GlySer: 4.523 ± 0.09
3.872GlyThr: 3.872 ± 0.077
5.576GlyVal: 5.576 ± 0.072
1.245GlyTrp: 1.245 ± 0.035
2.602GlyTyr: 2.602 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
1.837HisAla: 1.837 ± 0.034
0.312HisCys: 0.312 ± 0.015
1.101HisAsp: 1.101 ± 0.026
1.212HisGlu: 1.212 ± 0.027
1.079HisPhe: 1.079 ± 0.026
1.557HisGly: 1.557 ± 0.036
0.79HisHis: 0.79 ± 0.026
1.385HisIle: 1.385 ± 0.03
0.908HisLys: 0.908 ± 0.028
2.383HisLeu: 2.383 ± 0.045
0.562HisMet: 0.562 ± 0.021
0.91HisAsn: 0.91 ± 0.024
1.283HisPro: 1.283 ± 0.032
1.16HisGln: 1.16 ± 0.03
1.306HisArg: 1.306 ± 0.031
1.315HisSer: 1.315 ± 0.033
1.2HisThr: 1.2 ± 0.026
1.335HisVal: 1.335 ± 0.033
0.447HisTrp: 0.447 ± 0.02
0.959HisTyr: 0.959 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
6.244IleAla: 6.244 ± 0.071
0.561IleCys: 0.561 ± 0.019
4.033IleAsp: 4.033 ± 0.056
3.814IleGlu: 3.814 ± 0.055
2.188IlePhe: 2.188 ± 0.044
4.334IleGly: 4.334 ± 0.065
1.315IleHis: 1.315 ± 0.028
3.106IleIle: 3.106 ± 0.056
2.633IleLys: 2.633 ± 0.047
4.963IleLeu: 4.963 ± 0.07
1.033IleMet: 1.033 ± 0.025
3.055IleAsn: 3.055 ± 0.069
2.732IlePro: 2.732 ± 0.047
2.06IleGln: 2.06 ± 0.037
2.982IleArg: 2.982 ± 0.047
4.034IleSer: 4.034 ± 0.06
3.687IleThr: 3.687 ± 0.06
3.768IleVal: 3.768 ± 0.055
0.677IleTrp: 0.677 ± 0.023
1.764IleTyr: 1.764 ± 0.036
0.0IleXaa: 0.0 ± 0.0
Lys
3.873LysAla: 3.873 ± 0.068
0.229LysCys: 0.229 ± 0.014
2.229LysAsp: 2.229 ± 0.043
2.274LysGlu: 2.274 ± 0.052
1.306LysPhe: 1.306 ± 0.034
2.513LysGly: 2.513 ± 0.047
1.015LysHis: 1.015 ± 0.029
2.481LysIle: 2.481 ± 0.048
2.275LysLys: 2.275 ± 0.047
4.117LysLeu: 4.117 ± 0.065
0.947LysMet: 0.947 ± 0.028
1.873LysAsn: 1.873 ± 0.043
2.296LysPro: 2.296 ± 0.04
1.913LysGln: 1.913 ± 0.042
2.351LysArg: 2.351 ± 0.047
2.427LysSer: 2.427 ± 0.05
2.57LysThr: 2.57 ± 0.042
2.805LysVal: 2.805 ± 0.046
0.437LysTrp: 0.437 ± 0.019
1.05LysTyr: 1.05 ± 0.031
0.0LysXaa: 0.0 ± 0.0
Leu
10.575LeuAla: 10.575 ± 0.111
1.015LeuCys: 1.015 ± 0.025
5.855LeuAsp: 5.855 ± 0.066
5.546LeuGlu: 5.546 ± 0.07
3.951LeuPhe: 3.951 ± 0.067
6.957LeuGly: 6.957 ± 0.085
2.316LeuHis: 2.316 ± 0.038
5.881LeuIle: 5.881 ± 0.078
4.036LeuLys: 4.036 ± 0.069
11.462LeuLeu: 11.462 ± 0.142
2.396LeuMet: 2.396 ± 0.042
4.205LeuAsn: 4.205 ± 0.057
5.169LeuPro: 5.169 ± 0.072
4.587LeuGln: 4.587 ± 0.066
5.81LeuArg: 5.81 ± 0.071
6.883LeuSer: 6.883 ± 0.068
5.889LeuThr: 5.889 ± 0.066
6.95LeuVal: 6.95 ± 0.076
1.331LeuTrp: 1.331 ± 0.039
2.635LeuTyr: 2.635 ± 0.047
0.0LeuXaa: 0.0 ± 0.0
Met
2.37MetAla: 2.37 ± 0.04
0.179MetCys: 0.179 ± 0.01
1.212MetAsp: 1.212 ± 0.028
1.23MetGlu: 1.23 ± 0.027
0.74MetPhe: 0.74 ± 0.026
1.524MetGly: 1.524 ± 0.029
0.493MetHis: 0.493 ± 0.016
1.297MetIle: 1.297 ± 0.03
1.118MetLys: 1.118 ± 0.025
2.416MetLeu: 2.416 ± 0.048
0.621MetMet: 0.621 ± 0.024
1.043MetAsn: 1.043 ± 0.025
1.23MetPro: 1.23 ± 0.029
1.047MetGln: 1.047 ± 0.027
1.267MetArg: 1.267 ± 0.03
1.606MetSer: 1.606 ± 0.032
1.417MetThr: 1.417 ± 0.032
1.564MetVal: 1.564 ± 0.037
0.21MetTrp: 0.21 ± 0.012
0.5MetTyr: 0.5 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.733AsnAla: 3.733 ± 0.072
0.406AsnCys: 0.406 ± 0.018
2.264AsnAsp: 2.264 ± 0.045
2.168AsnGlu: 2.168 ± 0.036
1.689AsnPhe: 1.689 ± 0.041
3.231AsnGly: 3.231 ± 0.082
0.97AsnHis: 0.97 ± 0.023
2.79AsnIle: 2.79 ± 0.065
1.722AsnLys: 1.722 ± 0.039
4.159AsnLeu: 4.159 ± 0.058
0.845AsnMet: 0.845 ± 0.026
2.213AsnAsn: 2.213 ± 0.08
2.48AsnPro: 2.48 ± 0.041
1.842AsnGln: 1.842 ± 0.035
2.193AsnArg: 2.193 ± 0.043
2.567AsnSer: 2.567 ± 0.065
2.459AsnThr: 2.459 ± 0.061
2.524AsnVal: 2.524 ± 0.042
0.706AsnTrp: 0.706 ± 0.026
1.458AsnTyr: 1.458 ± 0.033
0.0AsnXaa: 0.0 ± 0.0
Pro
4.452ProAla: 4.452 ± 0.06
0.312ProCys: 0.312 ± 0.016
3.1ProAsp: 3.1 ± 0.048
3.264ProGlu: 3.264 ± 0.046
1.725ProPhe: 1.725 ± 0.038
3.262ProGly: 3.262 ± 0.046
0.945ProHis: 0.945 ± 0.026
2.22ProIle: 2.22 ± 0.038
1.548ProLys: 1.548 ± 0.038
4.546ProLeu: 4.546 ± 0.067
0.942ProMet: 0.942 ± 0.022
1.619ProAsn: 1.619 ± 0.037
1.721ProPro: 1.721 ± 0.041
1.846ProGln: 1.846 ± 0.035
1.929ProArg: 1.929 ± 0.032
2.538ProSer: 2.538 ± 0.045
2.349ProThr: 2.349 ± 0.039
3.547ProVal: 3.547 ± 0.05
0.633ProTrp: 0.633 ± 0.02
1.262ProTyr: 1.262 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
4.29GlnAla: 4.29 ± 0.064
0.353GlnCys: 0.353 ± 0.017
2.041GlnAsp: 2.041 ± 0.043
2.401GlnGlu: 2.401 ± 0.046
1.579GlnPhe: 1.579 ± 0.032
2.882GlnGly: 2.882 ± 0.052
1.31GlnHis: 1.31 ± 0.034
2.209GlnIle: 2.209 ± 0.038
1.71GlnLys: 1.71 ± 0.04
5.239GlnLeu: 5.239 ± 0.077
1.013GlnMet: 1.013 ± 0.026
1.385GlnAsn: 1.385 ± 0.038
2.029GlnPro: 2.029 ± 0.039
3.2GlnGln: 3.2 ± 0.078
2.946GlnArg: 2.946 ± 0.053
2.439GlnSer: 2.439 ± 0.042
2.312GlnThr: 2.312 ± 0.046
3.11GlnVal: 3.11 ± 0.048
0.795GlnTrp: 0.795 ± 0.026
1.201GlnTyr: 1.201 ± 0.026
0.0GlnXaa: 0.0 ± 0.0
Arg
4.525ArgAla: 4.525 ± 0.061
0.473ArgCys: 0.473 ± 0.018
3.199ArgAsp: 3.199 ± 0.048
3.491ArgGlu: 3.491 ± 0.06
2.371ArgPhe: 2.371 ± 0.045
3.21ArgGly: 3.21 ± 0.057
1.398ArgHis: 1.398 ± 0.034
3.444ArgIle: 3.444 ± 0.049
2.255ArgLys: 2.255 ± 0.043
5.912ArgLeu: 5.912 ± 0.08
1.405ArgMet: 1.405 ± 0.028
2.246ArgAsn: 2.246 ± 0.033
2.027ArgPro: 2.027 ± 0.04
2.658ArgGln: 2.658 ± 0.048
3.093ArgArg: 3.093 ± 0.062
2.995ArgSer: 2.995 ± 0.042
2.447ArgThr: 2.447 ± 0.039
3.791ArgVal: 3.791 ± 0.057
0.94ArgTrp: 0.94 ± 0.027
2.091ArgTyr: 2.091 ± 0.045
0.0ArgXaa: 0.0 ± 0.0
Ser
6.126SerAla: 6.126 ± 0.08
0.578SerCys: 0.578 ± 0.018
3.463SerAsp: 3.463 ± 0.062
3.413SerGlu: 3.413 ± 0.056
2.628SerPhe: 2.628 ± 0.05
5.281SerGly: 5.281 ± 0.089
1.415SerHis: 1.415 ± 0.031
3.658SerIle: 3.658 ± 0.058
2.042SerLys: 2.042 ± 0.042
6.796SerLeu: 6.796 ± 0.076
1.404SerMet: 1.404 ± 0.029
2.404SerAsn: 2.404 ± 0.058
2.775SerPro: 2.775 ± 0.046
2.367SerGln: 2.367 ± 0.041
3.271SerArg: 3.271 ± 0.052
5.436SerSer: 5.436 ± 0.146
3.383SerThr: 3.383 ± 0.05
4.524SerVal: 4.524 ± 0.058
0.981SerTrp: 0.981 ± 0.029
2.015SerTyr: 2.015 ± 0.042
0.0SerXaa: 0.0 ± 0.0
Thr
5.279ThrAla: 5.279 ± 0.076
0.463ThrCys: 0.463 ± 0.019
3.212ThrAsp: 3.212 ± 0.057
3.042ThrGlu: 3.042 ± 0.046
2.131ThrPhe: 2.131 ± 0.049
4.578ThrGly: 4.578 ± 0.081
1.32ThrHis: 1.32 ± 0.033
3.057ThrIle: 3.057 ± 0.059
1.721ThrLys: 1.721 ± 0.039
6.358ThrLeu: 6.358 ± 0.071
0.98ThrMet: 0.98 ± 0.027
2.198ThrAsn: 2.198 ± 0.065
3.037ThrPro: 3.037 ± 0.054
2.268ThrGln: 2.268 ± 0.039
2.921ThrArg: 2.921 ± 0.045
3.443ThrSer: 3.443 ± 0.055
3.249ThrThr: 3.249 ± 0.056
3.66ThrVal: 3.66 ± 0.065
0.754ThrTrp: 0.754 ± 0.025
1.714ThrTyr: 1.714 ± 0.037
0.0ThrXaa: 0.0 ± 0.0
Val
6.579ValAla: 6.579 ± 0.075
0.648ValCys: 0.648 ± 0.023
4.412ValAsp: 4.412 ± 0.058
4.113ValGlu: 4.113 ± 0.06
2.673ValPhe: 2.673 ± 0.044
4.656ValGly: 4.656 ± 0.058
1.282ValHis: 1.282 ± 0.027
4.554ValIle: 4.554 ± 0.056
2.841ValLys: 2.841 ± 0.053
6.644ValLeu: 6.644 ± 0.071
1.744ValMet: 1.744 ± 0.034
3.107ValAsn: 3.107 ± 0.058
2.794ValPro: 2.794 ± 0.047
2.472ValGln: 2.472 ± 0.036
3.475ValArg: 3.475 ± 0.052
4.679ValSer: 4.679 ± 0.065
4.196ValThr: 4.196 ± 0.071
5.268ValVal: 5.268 ± 0.067
0.857ValTrp: 0.857 ± 0.024
1.96ValTyr: 1.96 ± 0.039
0.0ValXaa: 0.0 ± 0.0
Trp
1.041TrpAla: 1.041 ± 0.026
0.148TrpCys: 0.148 ± 0.01
0.746TrpAsp: 0.746 ± 0.024
0.755TrpGlu: 0.755 ± 0.026
0.607TrpPhe: 0.607 ± 0.022
0.958TrpGly: 0.958 ± 0.027
0.414TrpHis: 0.414 ± 0.016
0.764TrpIle: 0.764 ± 0.021
0.48TrpLys: 0.48 ± 0.017
1.863TrpLeu: 1.863 ± 0.044
0.401TrpMet: 0.401 ± 0.017
0.646TrpAsn: 0.646 ± 0.028
0.596TrpPro: 0.596 ± 0.022
1.04TrpGln: 1.04 ± 0.035
0.984TrpArg: 0.984 ± 0.027
0.908TrpSer: 0.908 ± 0.03
0.696TrpThr: 0.696 ± 0.022
0.896TrpVal: 0.896 ± 0.025
0.274TrpTrp: 0.274 ± 0.014
0.433TrpTyr: 0.433 ± 0.019
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.577TyrAla: 2.577 ± 0.039
0.371TyrCys: 0.371 ± 0.015
1.753TyrAsp: 1.753 ± 0.043
1.721TyrGlu: 1.721 ± 0.039
1.377TyrPhe: 1.377 ± 0.034
2.242TyrGly: 2.242 ± 0.039
0.737TyrHis: 0.737 ± 0.024
1.572TyrIle: 1.572 ± 0.035
1.12TyrLys: 1.12 ± 0.033
3.303TyrLeu: 3.303 ± 0.053
0.568TyrMet: 0.568 ± 0.022
1.255TyrAsn: 1.255 ± 0.033
1.363TyrPro: 1.363 ± 0.031
1.601TyrGln: 1.601 ± 0.036
2.141TyrArg: 2.141 ± 0.039
1.993TyrSer: 1.993 ± 0.041
1.769TyrThr: 1.769 ± 0.036
1.917TyrVal: 1.917 ± 0.037
0.565TyrTrp: 0.565 ± 0.02
1.047TyrTyr: 1.047 ± 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 4268 proteins (1542520 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