Amino acid dipepetide frequency for Phaeobacter sp. CECT 5382

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
15.772AlaAla: 15.772 ± 0.165
1.101AlaCys: 1.101 ± 0.036
6.667AlaAsp: 6.667 ± 0.09
8.027AlaGlu: 8.027 ± 0.108
3.975AlaPhe: 3.975 ± 0.059
10.052AlaGly: 10.052 ± 0.096
2.288AlaHis: 2.288 ± 0.044
5.509AlaIle: 5.509 ± 0.067
4.31AlaLys: 4.31 ± 0.074
13.33AlaLeu: 13.33 ± 0.151
3.603AlaMet: 3.603 ± 0.061
2.864AlaAsn: 2.864 ± 0.049
5.45AlaPro: 5.45 ± 0.082
4.976AlaGln: 4.976 ± 0.075
7.833AlaArg: 7.833 ± 0.087
5.988AlaSer: 5.988 ± 0.079
5.715AlaThr: 5.715 ± 0.077
7.763AlaVal: 7.763 ± 0.092
1.361AlaTrp: 1.361 ± 0.036
2.52AlaTyr: 2.52 ± 0.047
0.0AlaXaa: 0.0 ± 0.0
Cys
1.18CysAla: 1.18 ± 0.031
0.149CysCys: 0.149 ± 0.011
0.66CysAsp: 0.66 ± 0.022
0.491CysGlu: 0.491 ± 0.021
0.387CysPhe: 0.387 ± 0.018
0.98CysGly: 0.98 ± 0.031
0.288CysHis: 0.288 ± 0.016
0.449CysIle: 0.449 ± 0.019
0.279CysLys: 0.279 ± 0.015
1.016CysLeu: 1.016 ± 0.03
0.211CysMet: 0.211 ± 0.012
0.248CysAsn: 0.248 ± 0.014
0.559CysPro: 0.559 ± 0.023
0.304CysGln: 0.304 ± 0.016
0.566CysArg: 0.566 ± 0.024
0.563CysSer: 0.563 ± 0.023
0.485CysThr: 0.485 ± 0.021
0.567CysVal: 0.567 ± 0.025
0.123CysTrp: 0.123 ± 0.011
0.242CysTyr: 0.242 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
6.353AspAla: 6.353 ± 0.081
0.614AspCys: 0.614 ± 0.021
2.899AspAsp: 2.899 ± 0.061
3.36AspGlu: 3.36 ± 0.062
2.395AspPhe: 2.395 ± 0.044
4.939AspGly: 4.939 ± 0.071
1.402AspHis: 1.402 ± 0.031
3.093AspIle: 3.093 ± 0.051
1.764AspLys: 1.764 ± 0.044
6.959AspLeu: 6.959 ± 0.086
1.738AspMet: 1.738 ± 0.044
1.393AspAsn: 1.393 ± 0.038
3.353AspPro: 3.353 ± 0.054
2.375AspGln: 2.375 ± 0.05
3.823AspArg: 3.823 ± 0.061
2.5AspSer: 2.5 ± 0.047
2.765AspThr: 2.765 ± 0.057
3.944AspVal: 3.944 ± 0.065
1.196AspTrp: 1.196 ± 0.032
1.613AspTyr: 1.613 ± 0.036
0.0AspXaa: 0.0 ± 0.0
Glu
7.942GluAla: 7.942 ± 0.088
0.394GluCys: 0.394 ± 0.018
3.371GluAsp: 3.371 ± 0.056
3.6GluGlu: 3.6 ± 0.075
1.943GluPhe: 1.943 ± 0.04
4.57GluGly: 4.57 ± 0.066
1.167GluHis: 1.167 ± 0.037
3.945GluIle: 3.945 ± 0.067
2.287GluLys: 2.287 ± 0.058
5.504GluLeu: 5.504 ± 0.075
1.953GluMet: 1.953 ± 0.045
1.873GluAsn: 1.873 ± 0.042
2.277GluPro: 2.277 ± 0.048
2.378GluGln: 2.378 ± 0.05
3.782GluArg: 3.782 ± 0.06
2.325GluSer: 2.325 ± 0.049
3.929GluThr: 3.929 ± 0.054
4.553GluVal: 4.553 ± 0.068
0.639GluTrp: 0.639 ± 0.022
1.022GluTyr: 1.022 ± 0.035
0.0GluXaa: 0.0 ± 0.0
Phe
4.396PheAla: 4.396 ± 0.068
0.504PheCys: 0.504 ± 0.02
2.846PheAsp: 2.846 ± 0.048
2.379PheGlu: 2.379 ± 0.05
1.457PhePhe: 1.457 ± 0.04
3.686PheGly: 3.686 ± 0.063
0.795PheHis: 0.795 ± 0.027
1.603PheIle: 1.603 ± 0.042
1.106PheLys: 1.106 ± 0.03
3.518PheLeu: 3.518 ± 0.06
0.887PheMet: 0.887 ± 0.028
1.115PheAsn: 1.115 ± 0.03
1.483PhePro: 1.483 ± 0.037
1.193PheGln: 1.193 ± 0.033
1.987PheArg: 1.987 ± 0.047
2.459PheSer: 2.459 ± 0.053
2.055PheThr: 2.055 ± 0.042
2.616PheVal: 2.616 ± 0.052
0.607PheTrp: 0.607 ± 0.021
0.959PheTyr: 0.959 ± 0.029
0.0PheXaa: 0.0 ± 0.0
Gly
9.265GlyAla: 9.265 ± 0.106
0.941GlyCys: 0.941 ± 0.027
4.581GlyAsp: 4.581 ± 0.072
4.68GlyGlu: 4.68 ± 0.065
3.822GlyPhe: 3.822 ± 0.061
7.211GlyGly: 7.211 ± 0.119
1.932GlyHis: 1.932 ± 0.041
4.343GlyIle: 4.343 ± 0.065
3.362GlyLys: 3.362 ± 0.053
9.174GlyLeu: 9.174 ± 0.104
2.467GlyMet: 2.467 ± 0.043
2.263GlyAsn: 2.263 ± 0.06
3.317GlyPro: 3.317 ± 0.049
3.38GlyGln: 3.38 ± 0.058
5.127GlyArg: 5.127 ± 0.07
4.498GlySer: 4.498 ± 0.066
4.376GlyThr: 4.376 ± 0.059
5.965GlyVal: 5.965 ± 0.081
1.351GlyTrp: 1.351 ± 0.034
2.349GlyTyr: 2.349 ± 0.05
0.0GlyXaa: 0.0 ± 0.0
His
2.275HisAla: 2.275 ± 0.04
0.263HisCys: 0.263 ± 0.014
1.261HisAsp: 1.261 ± 0.034
1.062HisGlu: 1.062 ± 0.03
0.919HisPhe: 0.919 ± 0.03
1.878HisGly: 1.878 ± 0.042
0.58HisHis: 0.58 ± 0.027
1.049HisIle: 1.049 ± 0.028
0.616HisLys: 0.616 ± 0.023
2.294HisLeu: 2.294 ± 0.051
0.583HisMet: 0.583 ± 0.022
0.521HisAsn: 0.521 ± 0.021
1.339HisPro: 1.339 ± 0.035
0.772HisGln: 0.772 ± 0.028
1.375HisArg: 1.375 ± 0.036
1.142HisSer: 1.142 ± 0.027
0.811HisThr: 0.811 ± 0.027
1.452HisVal: 1.452 ± 0.035
0.376HisTrp: 0.376 ± 0.019
0.581HisTyr: 0.581 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
6.51IleAla: 6.51 ± 0.072
0.717IleCys: 0.717 ± 0.024
3.204IleAsp: 3.204 ± 0.058
3.393IleGlu: 3.393 ± 0.058
1.738IlePhe: 1.738 ± 0.04
4.676IleGly: 4.676 ± 0.062
0.966IleHis: 0.966 ± 0.026
2.189IleIle: 2.189 ± 0.044
1.752IleLys: 1.752 ± 0.042
4.992IleLeu: 4.992 ± 0.069
1.075IleMet: 1.075 ± 0.031
1.514IleAsn: 1.514 ± 0.043
2.279IlePro: 2.279 ± 0.05
1.385IleGln: 1.385 ± 0.034
2.986IleArg: 2.986 ± 0.053
3.51IleSer: 3.51 ± 0.057
2.983IleThr: 2.983 ± 0.052
3.192IleVal: 3.192 ± 0.054
0.769IleTrp: 0.769 ± 0.028
1.226IleTyr: 1.226 ± 0.033
0.0IleXaa: 0.0 ± 0.0
Lys
4.195LysAla: 4.195 ± 0.069
0.218LysCys: 0.218 ± 0.014
1.998LysAsp: 1.998 ± 0.046
1.823LysGlu: 1.823 ± 0.047
1.089LysPhe: 1.089 ± 0.033
2.976LysGly: 2.976 ± 0.055
0.69LysHis: 0.69 ± 0.025
1.926LysIle: 1.926 ± 0.046
1.405LysLys: 1.405 ± 0.043
3.216LysLeu: 3.216 ± 0.055
1.029LysMet: 1.029 ± 0.03
0.971LysAsn: 0.971 ± 0.029
2.065LysPro: 2.065 ± 0.046
1.201LysGln: 1.201 ± 0.036
2.342LysArg: 2.342 ± 0.044
2.191LysSer: 2.191 ± 0.042
2.333LysThr: 2.333 ± 0.05
2.433LysVal: 2.433 ± 0.048
0.418LysTrp: 0.418 ± 0.019
0.712LysTyr: 0.712 ± 0.027
0.0LysXaa: 0.0 ± 0.0
Leu
13.012LeuAla: 13.012 ± 0.149
1.074LeuCys: 1.074 ± 0.03
5.894LeuAsp: 5.894 ± 0.086
5.819LeuGlu: 5.819 ± 0.074
3.696LeuPhe: 3.696 ± 0.06
8.408LeuGly: 8.408 ± 0.091
1.985LeuHis: 1.985 ± 0.042
5.216LeuIle: 5.216 ± 0.067
3.705LeuLys: 3.705 ± 0.052
9.27LeuLeu: 9.27 ± 0.141
2.841LeuMet: 2.841 ± 0.049
2.964LeuAsn: 2.964 ± 0.061
5.624LeuPro: 5.624 ± 0.079
3.702LeuGln: 3.702 ± 0.061
6.827LeuArg: 6.827 ± 0.079
6.966LeuSer: 6.966 ± 0.099
5.987LeuThr: 5.987 ± 0.079
6.977LeuVal: 6.977 ± 0.079
1.311LeuTrp: 1.311 ± 0.034
1.938LeuTyr: 1.938 ± 0.04
0.0LeuXaa: 0.0 ± 0.0
Met
3.403MetAla: 3.403 ± 0.056
0.198MetCys: 0.198 ± 0.012
1.38MetAsp: 1.38 ± 0.036
1.407MetGlu: 1.407 ± 0.033
0.827MetPhe: 0.827 ± 0.029
2.304MetGly: 2.304 ± 0.049
0.509MetHis: 0.509 ± 0.024
1.532MetIle: 1.532 ± 0.037
1.131MetLys: 1.131 ± 0.032
2.687MetLeu: 2.687 ± 0.05
0.832MetMet: 0.832 ± 0.028
0.875MetAsn: 0.875 ± 0.029
1.483MetPro: 1.483 ± 0.04
1.265MetGln: 1.265 ± 0.033
1.873MetArg: 1.873 ± 0.041
1.943MetSer: 1.943 ± 0.037
2.033MetThr: 2.033 ± 0.043
1.92MetVal: 1.92 ± 0.044
0.243MetTrp: 0.243 ± 0.016
0.357MetTyr: 0.357 ± 0.018
0.0MetXaa: 0.0 ± 0.0
Asn
3.217AsnAla: 3.217 ± 0.052
0.296AsnCys: 0.296 ± 0.015
1.439AsnAsp: 1.439 ± 0.039
1.273AsnGlu: 1.273 ± 0.033
1.011AsnPhe: 1.011 ± 0.031
2.465AsnGly: 2.465 ± 0.055
0.547AsnHis: 0.547 ± 0.024
1.444AsnIle: 1.444 ± 0.042
0.82AsnLys: 0.82 ± 0.027
2.847AsnLeu: 2.847 ± 0.049
0.755AsnMet: 0.755 ± 0.024
0.757AsnAsn: 0.757 ± 0.029
1.912AsnPro: 1.912 ± 0.04
0.966AsnGln: 0.966 ± 0.033
1.826AsnArg: 1.826 ± 0.037
1.432AsnSer: 1.432 ± 0.031
1.473AsnThr: 1.473 ± 0.038
1.762AsnVal: 1.762 ± 0.039
0.504AsnTrp: 0.504 ± 0.02
0.7AsnTyr: 0.7 ± 0.024
0.0AsnXaa: 0.0 ± 0.0
Pro
5.235ProAla: 5.235 ± 0.07
0.364ProCys: 0.364 ± 0.019
3.628ProAsp: 3.628 ± 0.064
4.05ProGlu: 4.05 ± 0.066
1.883ProPhe: 1.883 ± 0.043
4.157ProGly: 4.157 ± 0.062
1.053ProHis: 1.053 ± 0.034
2.069ProIle: 2.069 ± 0.044
1.894ProLys: 1.894 ± 0.045
4.757ProLeu: 4.757 ± 0.073
1.347ProMet: 1.347 ± 0.039
1.413ProAsn: 1.413 ± 0.034
2.008ProPro: 2.008 ± 0.047
1.975ProGln: 1.975 ± 0.048
2.484ProArg: 2.484 ± 0.052
2.562ProSer: 2.562 ± 0.051
2.279ProThr: 2.279 ± 0.042
4.106ProVal: 4.106 ± 0.061
0.624ProTrp: 0.624 ± 0.025
1.127ProTyr: 1.127 ± 0.028
0.0ProXaa: 0.0 ± 0.0
Gln
4.886GlnAla: 4.886 ± 0.075
0.248GlnCys: 0.248 ± 0.015
2.234GlnAsp: 2.234 ± 0.048
1.984GlnGlu: 1.984 ± 0.046
1.263GlnPhe: 1.263 ± 0.032
3.088GlnGly: 3.088 ± 0.052
0.769GlnHis: 0.769 ± 0.024
2.296GlnIle: 2.296 ± 0.044
1.353GlnLys: 1.353 ± 0.037
3.522GlnLeu: 3.522 ± 0.063
1.254GlnMet: 1.254 ± 0.03
1.171GlnAsn: 1.171 ± 0.033
1.784GlnPro: 1.784 ± 0.037
1.611GlnGln: 1.611 ± 0.047
2.519GlnArg: 2.519 ± 0.047
2.324GlnSer: 2.324 ± 0.047
2.004GlnThr: 2.004 ± 0.044
2.61GlnVal: 2.61 ± 0.049
0.449GlnTrp: 0.449 ± 0.019
0.648GlnTyr: 0.648 ± 0.023
0.0GlnXaa: 0.0 ± 0.0
Arg
7.256ArgAla: 7.256 ± 0.08
0.514ArgCys: 0.514 ± 0.018
3.851ArgAsp: 3.851 ± 0.063
3.484ArgGlu: 3.484 ± 0.062
2.48ArgPhe: 2.48 ± 0.049
4.16ArgGly: 4.16 ± 0.065
1.499ArgHis: 1.499 ± 0.037
3.594ArgIle: 3.594 ± 0.052
2.347ArgLys: 2.347 ± 0.047
6.958ArgLeu: 6.958 ± 0.091
1.862ArgMet: 1.862 ± 0.038
1.758ArgAsn: 1.758 ± 0.04
3.03ArgPro: 3.03 ± 0.053
2.573ArgGln: 2.573 ± 0.055
4.466ArgArg: 4.466 ± 0.065
3.413ArgSer: 3.413 ± 0.05
2.602ArgThr: 2.602 ± 0.053
4.122ArgVal: 4.122 ± 0.06
0.852ArgTrp: 0.852 ± 0.026
1.476ArgTyr: 1.476 ± 0.037
0.0ArgXaa: 0.0 ± 0.0
Ser
6.231SerAla: 6.231 ± 0.075
0.561SerCys: 0.561 ± 0.026
3.47SerAsp: 3.47 ± 0.063
3.275SerGlu: 3.275 ± 0.063
2.493SerPhe: 2.493 ± 0.049
5.491SerGly: 5.491 ± 0.075
1.316SerHis: 1.316 ± 0.032
2.637SerIle: 2.637 ± 0.055
1.912SerLys: 1.912 ± 0.036
5.742SerLeu: 5.742 ± 0.069
1.513SerMet: 1.513 ± 0.035
1.522SerAsn: 1.522 ± 0.036
2.772SerPro: 2.772 ± 0.049
2.144SerGln: 2.144 ± 0.042
3.303SerArg: 3.303 ± 0.051
3.081SerSer: 3.081 ± 0.064
2.676SerThr: 2.676 ± 0.052
3.777SerVal: 3.777 ± 0.06
0.819SerTrp: 0.819 ± 0.027
1.549SerTyr: 1.549 ± 0.033
0.0SerXaa: 0.0 ± 0.0
Thr
6.169ThrAla: 6.169 ± 0.089
0.551ThrCys: 0.551 ± 0.023
2.968ThrAsp: 2.968 ± 0.046
2.936ThrGlu: 2.936 ± 0.05
1.853ThrPhe: 1.853 ± 0.044
5.378ThrGly: 5.378 ± 0.07
1.135ThrHis: 1.135 ± 0.03
2.475ThrIle: 2.475 ± 0.052
1.68ThrLys: 1.68 ± 0.036
5.884ThrLeu: 5.884 ± 0.074
1.258ThrMet: 1.258 ± 0.035
1.281ThrAsn: 1.281 ± 0.033
3.308ThrPro: 3.308 ± 0.054
1.865ThrGln: 1.865 ± 0.04
3.165ThrArg: 3.165 ± 0.06
3.007ThrSer: 3.007 ± 0.053
2.814ThrThr: 2.814 ± 0.056
3.916ThrVal: 3.916 ± 0.061
0.653ThrTrp: 0.653 ± 0.024
1.262ThrTyr: 1.262 ± 0.037
0.0ThrXaa: 0.0 ± 0.0
Val
8.141ValAla: 8.141 ± 0.088
0.604ValCys: 0.604 ± 0.024
3.834ValAsp: 3.834 ± 0.06
4.456ValGlu: 4.456 ± 0.073
2.874ValPhe: 2.874 ± 0.056
4.836ValGly: 4.836 ± 0.068
1.278ValHis: 1.278 ± 0.035
4.042ValIle: 4.042 ± 0.067
2.355ValLys: 2.355 ± 0.048
7.567ValLeu: 7.567 ± 0.097
2.071ValMet: 2.071 ± 0.045
1.892ValAsn: 1.892 ± 0.043
3.272ValPro: 3.272 ± 0.053
2.325ValGln: 2.325 ± 0.049
3.562ValArg: 3.562 ± 0.057
4.286ValSer: 4.286 ± 0.058
4.461ValThr: 4.461 ± 0.063
5.33ValVal: 5.33 ± 0.08
0.87ValTrp: 0.87 ± 0.027
1.342ValTyr: 1.342 ± 0.033
0.0ValXaa: 0.0 ± 0.0
Trp
1.305TrpAla: 1.305 ± 0.038
0.158TrpCys: 0.158 ± 0.011
0.734TrpAsp: 0.734 ± 0.028
0.668TrpGlu: 0.668 ± 0.025
0.574TrpPhe: 0.574 ± 0.024
1.019TrpGly: 1.019 ± 0.032
0.354TrpHis: 0.354 ± 0.018
0.73TrpIle: 0.73 ± 0.026
0.489TrpLys: 0.489 ± 0.021
1.588TrpLeu: 1.588 ± 0.041
0.414TrpMet: 0.414 ± 0.019
0.439TrpAsn: 0.439 ± 0.018
0.663TrpPro: 0.663 ± 0.026
0.746TrpGln: 0.746 ± 0.025
1.03TrpArg: 1.03 ± 0.027
0.813TrpSer: 0.813 ± 0.03
0.661TrpThr: 0.661 ± 0.025
0.864TrpVal: 0.864 ± 0.027
0.216TrpTrp: 0.216 ± 0.015
0.288TrpTyr: 0.288 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.364TyrAla: 2.364 ± 0.042
0.277TyrCys: 0.277 ± 0.015
1.559TyrAsp: 1.559 ± 0.038
1.288TyrGlu: 1.288 ± 0.036
0.972TyrPhe: 0.972 ± 0.029
2.132TyrGly: 2.132 ± 0.052
0.593TyrHis: 0.593 ± 0.024
0.913TyrIle: 0.913 ± 0.027
0.664TyrLys: 0.664 ± 0.024
2.392TyrLeu: 2.392 ± 0.05
0.509TyrMet: 0.509 ± 0.022
0.613TyrAsn: 0.613 ± 0.023
1.036TyrPro: 1.036 ± 0.028
0.879TyrGln: 0.879 ± 0.028
1.422TyrArg: 1.422 ± 0.033
1.281TyrSer: 1.281 ± 0.035
1.116TyrThr: 1.116 ± 0.033
1.528TyrVal: 1.528 ± 0.035
0.374TyrTrp: 0.374 ± 0.018
0.624TyrTyr: 0.624 ± 0.025
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 3864 proteins (1199402 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