Amino acid dipepetide frequency for bacterium HR10

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
10.973AlaAla: 10.973 ± 0.149
1.073AlaCys: 1.073 ± 0.042
4.54AlaAsp: 4.54 ± 0.079
8.105AlaGlu: 8.105 ± 0.115
4.231AlaPhe: 4.231 ± 0.07
7.317AlaGly: 7.317 ± 0.102
2.747AlaHis: 2.747 ± 0.062
5.726AlaIle: 5.726 ± 0.093
2.195AlaLys: 2.195 ± 0.06
13.72AlaLeu: 13.72 ± 0.17
2.091AlaMet: 2.091 ± 0.053
1.89AlaAsn: 1.89 ± 0.055
4.961AlaPro: 4.961 ± 0.089
3.544AlaGln: 3.544 ± 0.063
11.503AlaArg: 11.503 ± 0.16
4.942AlaSer: 4.942 ± 0.078
4.611AlaThr: 4.611 ± 0.075
7.572AlaVal: 7.572 ± 0.106
1.429AlaTrp: 1.429 ± 0.044
2.746AlaTyr: 2.746 ± 0.056
0.0AlaXaa: 0.0 ± 0.0
Cys
0.966CysAla: 0.966 ± 0.038
0.131CysCys: 0.131 ± 0.01
0.457CysAsp: 0.457 ± 0.023
0.568CysGlu: 0.568 ± 0.024
0.311CysPhe: 0.311 ± 0.018
0.978CysGly: 0.978 ± 0.033
0.342CysHis: 0.342 ± 0.034
0.263CysIle: 0.263 ± 0.017
0.117CysLys: 0.117 ± 0.01
0.789CysLeu: 0.789 ± 0.027
0.114CysMet: 0.114 ± 0.011
0.173CysAsn: 0.173 ± 0.013
0.562CysPro: 0.562 ± 0.028
0.277CysGln: 0.277 ± 0.016
0.783CysArg: 0.783 ± 0.034
0.416CysSer: 0.416 ± 0.023
0.387CysThr: 0.387 ± 0.022
0.676CysVal: 0.676 ± 0.03
0.122CysTrp: 0.122 ± 0.011
0.232CysTyr: 0.232 ± 0.019
0.0CysXaa: 0.0 ± 0.0
Asp
4.406AspAla: 4.406 ± 0.076
0.294AspCys: 0.294 ± 0.018
1.929AspAsp: 1.929 ± 0.047
3.227AspGlu: 3.227 ± 0.064
2.034AspPhe: 2.034 ± 0.049
3.953AspGly: 3.953 ± 0.092
1.058AspHis: 1.058 ± 0.036
2.068AspIle: 2.068 ± 0.046
0.721AspLys: 0.721 ± 0.029
5.525AspLeu: 5.525 ± 0.079
0.529AspMet: 0.529 ± 0.022
0.657AspAsn: 0.657 ± 0.03
3.795AspPro: 3.795 ± 0.075
1.17AspGln: 1.17 ± 0.042
4.345AspArg: 4.345 ± 0.069
1.281AspSer: 1.281 ± 0.034
1.465AspThr: 1.465 ± 0.041
4.492AspVal: 4.492 ± 0.078
0.623AspTrp: 0.623 ± 0.023
1.194AspTyr: 1.194 ± 0.039
0.0AspXaa: 0.0 ± 0.0
Glu
8.814GluAla: 8.814 ± 0.135
0.521GluCys: 0.521 ± 0.023
3.241GluAsp: 3.241 ± 0.062
6.294GluGlu: 6.294 ± 0.101
2.269GluPhe: 2.269 ± 0.054
5.333GluGly: 5.333 ± 0.076
1.706GluHis: 1.706 ± 0.041
4.443GluIle: 4.443 ± 0.076
2.221GluLys: 2.221 ± 0.063
7.134GluLeu: 7.134 ± 0.106
1.571GluMet: 1.571 ± 0.047
1.562GluAsn: 1.562 ± 0.045
3.148GluPro: 3.148 ± 0.066
2.661GluGln: 2.661 ± 0.057
9.222GluArg: 9.222 ± 0.126
2.698GluSer: 2.698 ± 0.059
3.243GluThr: 3.243 ± 0.061
5.561GluVal: 5.561 ± 0.087
1.007GluTrp: 1.007 ± 0.033
1.76GluTyr: 1.76 ± 0.046
0.0GluXaa: 0.0 ± 0.0
Phe
3.868PheAla: 3.868 ± 0.076
0.369PheCys: 0.369 ± 0.018
2.181PheAsp: 2.181 ± 0.054
2.386PheGlu: 2.386 ± 0.048
1.816PhePhe: 1.816 ± 0.054
3.545PheGly: 3.545 ± 0.085
0.93PheHis: 0.93 ± 0.03
1.755PheIle: 1.755 ± 0.048
0.787PheLys: 0.787 ± 0.029
4.154PheLeu: 4.154 ± 0.087
0.569PheMet: 0.569 ± 0.026
1.036PheAsn: 1.036 ± 0.043
2.052PhePro: 2.052 ± 0.054
1.124PheGln: 1.124 ± 0.039
3.216PheArg: 3.216 ± 0.06
2.162PheSer: 2.162 ± 0.059
2.133PheThr: 2.133 ± 0.059
2.746PheVal: 2.746 ± 0.058
0.591PheTrp: 0.591 ± 0.026
1.102PheTyr: 1.102 ± 0.038
0.0PheXaa: 0.0 ± 0.0
Gly
7.537GlyAla: 7.537 ± 0.104
0.759GlyCys: 0.759 ± 0.033
3.65GlyAsp: 3.65 ± 0.081
5.643GlyGlu: 5.643 ± 0.084
3.182GlyPhe: 3.182 ± 0.072
6.576GlyGly: 6.576 ± 0.128
1.706GlyHis: 1.706 ± 0.048
4.641GlyIle: 4.641 ± 0.081
2.303GlyLys: 2.303 ± 0.051
7.987GlyLeu: 7.987 ± 0.095
1.824GlyMet: 1.824 ± 0.051
1.707GlyAsn: 1.707 ± 0.062
3.32GlyPro: 3.32 ± 0.063
2.454GlyGln: 2.454 ± 0.059
7.857GlyArg: 7.857 ± 0.106
3.792GlySer: 3.792 ± 0.078
4.238GlyThr: 4.238 ± 0.085
6.441GlyVal: 6.441 ± 0.092
1.302GlyTrp: 1.302 ± 0.042
2.395GlyTyr: 2.395 ± 0.053
0.0GlyXaa: 0.0 ± 0.0
His
2.243HisAla: 2.243 ± 0.054
0.205HisCys: 0.205 ± 0.015
0.833HisAsp: 0.833 ± 0.03
1.388HisGlu: 1.388 ± 0.046
0.892HisPhe: 0.892 ± 0.032
1.845HisGly: 1.845 ± 0.045
0.592HisHis: 0.592 ± 0.022
1.044HisIle: 1.044 ± 0.036
0.373HisLys: 0.373 ± 0.02
2.766HisLeu: 2.766 ± 0.059
0.32HisMet: 0.32 ± 0.017
0.42HisAsn: 0.42 ± 0.021
1.877HisPro: 1.877 ± 0.049
0.663HisGln: 0.663 ± 0.031
2.236HisArg: 2.236 ± 0.048
0.807HisSer: 0.807 ± 0.031
0.914HisThr: 0.914 ± 0.031
1.747HisVal: 1.747 ± 0.041
0.282HisTrp: 0.282 ± 0.018
0.653HisTyr: 0.653 ± 0.026
0.0HisXaa: 0.0 ± 0.0
Ile
6.805IleAla: 6.805 ± 0.083
0.477IleCys: 0.477 ± 0.022
1.771IleAsp: 1.771 ± 0.047
4.378IleGlu: 4.378 ± 0.085
2.073IlePhe: 2.073 ± 0.048
4.737IleGly: 4.737 ± 0.077
1.091IleHis: 1.091 ± 0.038
2.433IleIle: 2.433 ± 0.056
1.091IleLys: 1.091 ± 0.04
5.492IleLeu: 5.492 ± 0.087
0.669IleMet: 0.669 ± 0.03
1.119IleAsn: 1.119 ± 0.036
3.12IlePro: 3.12 ± 0.061
1.318IleGln: 1.318 ± 0.033
4.603IleArg: 4.603 ± 0.067
2.395IleSer: 2.395 ± 0.057
2.958IleThr: 2.958 ± 0.053
4.733IleVal: 4.733 ± 0.075
0.585IleTrp: 0.585 ± 0.027
1.368IleTyr: 1.368 ± 0.036
0.0IleXaa: 0.0 ± 0.0
Lys
2.504LysAla: 2.504 ± 0.058
0.169LysCys: 0.169 ± 0.014
0.971LysAsp: 0.971 ± 0.034
1.592LysGlu: 1.592 ± 0.053
0.709LysPhe: 0.709 ± 0.024
1.767LysGly: 1.767 ± 0.046
0.448LysHis: 0.448 ± 0.021
1.541LysIle: 1.541 ± 0.045
0.954LysLys: 0.954 ± 0.048
2.578LysLeu: 2.578 ± 0.062
0.603LysMet: 0.603 ± 0.027
0.633LysAsn: 0.633 ± 0.027
1.341LysPro: 1.341 ± 0.041
0.648LysGln: 0.648 ± 0.027
2.444LysArg: 2.444 ± 0.049
1.006LysSer: 1.006 ± 0.031
1.382LysThr: 1.382 ± 0.041
1.869LysVal: 1.869 ± 0.056
0.271LysTrp: 0.271 ± 0.017
0.663LysTyr: 0.663 ± 0.027
0.0LysXaa: 0.0 ± 0.0
Leu
12.682LeuAla: 12.682 ± 0.153
0.938LeuCys: 0.938 ± 0.033
5.211LeuAsp: 5.211 ± 0.078
7.575LeuGlu: 7.575 ± 0.113
3.949LeuPhe: 3.949 ± 0.073
8.667LeuGly: 8.667 ± 0.107
2.193LeuHis: 2.193 ± 0.06
5.644LeuIle: 5.644 ± 0.088
2.882LeuLys: 2.882 ± 0.06
12.112LeuLeu: 12.112 ± 0.177
2.092LeuMet: 2.092 ± 0.047
2.285LeuAsn: 2.285 ± 0.055
5.769LeuPro: 5.769 ± 0.084
3.346LeuGln: 3.346 ± 0.061
10.523LeuArg: 10.523 ± 0.12
5.987LeuSer: 5.987 ± 0.097
5.764LeuThr: 5.764 ± 0.093
8.117LeuVal: 8.117 ± 0.107
1.589LeuTrp: 1.589 ± 0.051
2.693LeuTyr: 2.693 ± 0.056
0.0LeuXaa: 0.0 ± 0.0
Met
2.09MetAla: 2.09 ± 0.053
0.129MetCys: 0.129 ± 0.011
0.779MetAsp: 0.779 ± 0.027
1.174MetGlu: 1.174 ± 0.034
0.507MetPhe: 0.507 ± 0.025
1.619MetGly: 1.619 ± 0.043
0.318MetHis: 0.318 ± 0.02
1.025MetIle: 1.025 ± 0.032
0.689MetLys: 0.689 ± 0.024
1.947MetLeu: 1.947 ± 0.044
0.441MetMet: 0.441 ± 0.022
0.514MetAsn: 0.514 ± 0.025
0.972MetPro: 0.972 ± 0.035
0.458MetGln: 0.458 ± 0.023
2.32MetArg: 2.32 ± 0.044
1.14MetSer: 1.14 ± 0.036
1.182MetThr: 1.182 ± 0.04
1.178MetVal: 1.178 ± 0.036
0.227MetTrp: 0.227 ± 0.016
0.317MetTyr: 0.317 ± 0.017
0.0MetXaa: 0.0 ± 0.0
Asn
2.264AsnAla: 2.264 ± 0.058
0.19AsnCys: 0.19 ± 0.015
0.897AsnAsp: 0.897 ± 0.037
1.188AsnGlu: 1.188 ± 0.036
0.978AsnPhe: 0.978 ± 0.039
1.665AsnGly: 1.665 ± 0.058
0.422AsnHis: 0.422 ± 0.022
1.229AsnIle: 1.229 ± 0.039
0.406AsnLys: 0.406 ± 0.024
2.346AsnLeu: 2.346 ± 0.052
0.34AsnMet: 0.34 ± 0.02
0.614AsnAsn: 0.614 ± 0.033
1.886AsnPro: 1.886 ± 0.052
0.592AsnGln: 0.592 ± 0.029
1.835AsnArg: 1.835 ± 0.053
0.784AsnSer: 0.784 ± 0.035
0.983AsnThr: 0.983 ± 0.037
1.902AsnVal: 1.902 ± 0.052
0.342AsnTrp: 0.342 ± 0.02
0.583AsnTyr: 0.583 ± 0.028
0.0AsnXaa: 0.0 ± 0.0
Pro
4.634ProAla: 4.634 ± 0.087
0.416ProCys: 0.416 ± 0.024
3.004ProAsp: 3.004 ± 0.057
5.274ProGlu: 5.274 ± 0.083
2.128ProPhe: 2.128 ± 0.044
4.164ProGly: 4.164 ± 0.081
1.313ProHis: 1.313 ± 0.045
3.038ProIle: 3.038 ± 0.06
1.347ProLys: 1.347 ± 0.042
5.356ProLeu: 5.356 ± 0.086
1.193ProMet: 1.193 ± 0.033
1.444ProAsn: 1.444 ± 0.046
3.519ProPro: 3.519 ± 0.091
1.848ProGln: 1.848 ± 0.045
4.455ProArg: 4.455 ± 0.073
3.162ProSer: 3.162 ± 0.068
3.02ProThr: 3.02 ± 0.066
3.963ProVal: 3.963 ± 0.064
0.734ProTrp: 0.734 ± 0.027
1.402ProTyr: 1.402 ± 0.041
0.0ProXaa: 0.0 ± 0.0
Gln
3.363GlnAla: 3.363 ± 0.07
0.231GlnCys: 0.231 ± 0.018
1.112GlnAsp: 1.112 ± 0.036
2.218GlnGlu: 2.218 ± 0.056
1.035GlnPhe: 1.035 ± 0.038
2.095GlnGly: 2.095 ± 0.054
0.574GlnHis: 0.574 ± 0.027
1.806GlnIle: 1.806 ± 0.041
0.973GlnLys: 0.973 ± 0.037
3.371GlnLeu: 3.371 ± 0.068
0.786GlnMet: 0.786 ± 0.026
0.665GlnAsn: 0.665 ± 0.033
1.419GlnPro: 1.419 ± 0.042
1.265GlnGln: 1.265 ± 0.041
3.005GlnArg: 3.005 ± 0.057
1.205GlnSer: 1.205 ± 0.036
1.547GlnThr: 1.547 ± 0.043
2.333GlnVal: 2.333 ± 0.05
0.548GlnTrp: 0.548 ± 0.025
0.799GlnTyr: 0.799 ± 0.032
0.0GlnXaa: 0.0 ± 0.0
Arg
11.736ArgAla: 11.736 ± 0.168
0.8ArgCys: 0.8 ± 0.034
4.264ArgAsp: 4.264 ± 0.071
8.361ArgGlu: 8.361 ± 0.12
3.851ArgPhe: 3.851 ± 0.068
6.803ArgGly: 6.803 ± 0.099
2.051ArgHis: 2.051 ± 0.049
4.963ArgIle: 4.963 ± 0.072
2.082ArgLys: 2.082 ± 0.045
10.854ArgLeu: 10.854 ± 0.13
2.018ArgMet: 2.018 ± 0.047
1.739ArgAsn: 1.739 ± 0.056
4.988ArgPro: 4.988 ± 0.079
3.425ArgGln: 3.425 ± 0.061
9.784ArgArg: 9.784 ± 0.125
4.246ArgSer: 4.246 ± 0.078
4.385ArgThr: 4.385 ± 0.059
7.655ArgVal: 7.655 ± 0.09
1.711ArgTrp: 1.711 ± 0.051
2.585ArgTyr: 2.585 ± 0.053
0.0ArgXaa: 0.0 ± 0.0
Ser
4.991SerAla: 4.991 ± 0.078
0.394SerCys: 0.394 ± 0.023
2.21SerAsp: 2.21 ± 0.053
3.369SerGlu: 3.369 ± 0.057
1.942SerPhe: 1.942 ± 0.059
4.665SerGly: 4.665 ± 0.083
0.893SerHis: 0.893 ± 0.028
1.979SerIle: 1.979 ± 0.049
0.919SerLys: 0.919 ± 0.031
5.071SerLeu: 5.071 ± 0.09
0.864SerMet: 0.864 ± 0.031
0.911SerAsn: 0.911 ± 0.035
3.436SerPro: 3.436 ± 0.066
1.162SerGln: 1.162 ± 0.039
3.955SerArg: 3.955 ± 0.063
2.486SerSer: 2.486 ± 0.063
2.101SerThr: 2.101 ± 0.053
3.562SerVal: 3.562 ± 0.06
0.773SerTrp: 0.773 ± 0.033
1.076SerTyr: 1.076 ± 0.036
0.0SerXaa: 0.0 ± 0.0
Thr
4.695ThrAla: 4.695 ± 0.073
0.447ThrCys: 0.447 ± 0.024
2.293ThrAsp: 2.293 ± 0.055
3.012ThrGlu: 3.012 ± 0.06
2.164ThrPhe: 2.164 ± 0.053
4.355ThrGly: 4.355 ± 0.076
1.059ThrHis: 1.059 ± 0.035
2.945ThrIle: 2.945 ± 0.062
1.021ThrLys: 1.021 ± 0.032
5.702ThrLeu: 5.702 ± 0.081
0.839ThrMet: 0.839 ± 0.028
1.187ThrAsn: 1.187 ± 0.046
3.273ThrPro: 3.273 ± 0.062
1.118ThrGln: 1.118 ± 0.035
3.877ThrArg: 3.877 ± 0.071
2.539ThrSer: 2.539 ± 0.05
2.721ThrThr: 2.721 ± 0.061
4.109ThrVal: 4.109 ± 0.077
0.744ThrTrp: 0.744 ± 0.033
1.371ThrTyr: 1.371 ± 0.034
0.0ThrXaa: 0.0 ± 0.0
Val
7.374ValAla: 7.374 ± 0.101
0.726ValCys: 0.726 ± 0.028
3.496ValAsp: 3.496 ± 0.063
5.856ValGlu: 5.856 ± 0.093
2.827ValPhe: 2.827 ± 0.056
5.789ValGly: 5.789 ± 0.086
1.674ValHis: 1.674 ± 0.04
4.655ValIle: 4.655 ± 0.087
2.055ValLys: 2.055 ± 0.057
8.891ValLeu: 8.891 ± 0.114
1.36ValMet: 1.36 ± 0.041
1.933ValAsn: 1.933 ± 0.048
3.946ValPro: 3.946 ± 0.069
2.067ValGln: 2.067 ± 0.052
8.018ValArg: 8.018 ± 0.099
3.811ValSer: 3.811 ± 0.065
4.43ValThr: 4.43 ± 0.081
5.996ValVal: 5.996 ± 0.084
0.947ValTrp: 0.947 ± 0.031
1.871ValTyr: 1.871 ± 0.045
0.0ValXaa: 0.0 ± 0.0
Trp
1.328TrpAla: 1.328 ± 0.045
0.118TrpCys: 0.118 ± 0.012
0.598TrpAsp: 0.598 ± 0.025
0.967TrpGlu: 0.967 ± 0.033
0.504TrpPhe: 0.504 ± 0.027
1.175TrpGly: 1.175 ± 0.044
0.346TrpHis: 0.346 ± 0.018
0.878TrpIle: 0.878 ± 0.037
0.403TrpLys: 0.403 ± 0.02
1.472TrpLeu: 1.472 ± 0.044
0.428TrpMet: 0.428 ± 0.019
0.377TrpAsn: 0.377 ± 0.021
0.619TrpPro: 0.619 ± 0.028
0.468TrpGln: 0.468 ± 0.023
1.642TrpArg: 1.642 ± 0.046
0.804TrpSer: 0.804 ± 0.031
0.756TrpThr: 0.756 ± 0.031
0.995TrpVal: 0.995 ± 0.031
0.272TrpTrp: 0.272 ± 0.019
0.35TrpTyr: 0.35 ± 0.02
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.645TyrAla: 2.645 ± 0.06
0.279TyrCys: 0.279 ± 0.019
1.329TyrAsp: 1.329 ± 0.037
1.837TyrGlu: 1.837 ± 0.043
1.12TyrPhe: 1.12 ± 0.041
2.266TyrGly: 2.266 ± 0.057
0.636TyrHis: 0.636 ± 0.031
1.138TyrIle: 1.138 ± 0.038
0.555TyrLys: 0.555 ± 0.024
2.75TyrLeu: 2.75 ± 0.057
0.373TyrMet: 0.373 ± 0.021
0.578TyrAsn: 0.578 ± 0.03
1.414TyrPro: 1.414 ± 0.039
0.74TyrGln: 0.74 ± 0.031
2.68TyrArg: 2.68 ± 0.063
1.096TyrSer: 1.096 ± 0.036
1.248TyrThr: 1.248 ± 0.039
2.073TyrVal: 2.073 ± 0.048
0.402TyrTrp: 0.402 ± 0.021
0.831TyrTyr: 0.831 ± 0.032
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 2687 proteins (941310 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