Amino acid dipepetide frequency for Opitutus sp. GAS368

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
17.63AlaAla: 17.63 ± 0.19
1.141AlaCys: 1.141 ± 0.029
6.23AlaAsp: 6.23 ± 0.074
6.587AlaGlu: 6.587 ± 0.091
4.044AlaPhe: 4.044 ± 0.058
11.259AlaGly: 11.259 ± 0.161
2.401AlaHis: 2.401 ± 0.044
5.036AlaIle: 5.036 ± 0.072
4.929AlaLys: 4.929 ± 0.087
13.087AlaLeu: 13.087 ± 0.108
2.384AlaMet: 2.384 ± 0.053
3.185AlaAsn: 3.185 ± 0.065
6.055AlaPro: 6.055 ± 0.082
4.306AlaGln: 4.306 ± 0.077
8.353AlaArg: 8.353 ± 0.108
5.46AlaSer: 5.46 ± 0.077
6.818AlaThr: 6.818 ± 0.144
8.654AlaVal: 8.654 ± 0.099
1.871AlaTrp: 1.871 ± 0.048
2.616AlaTyr: 2.616 ± 0.046
0.0AlaXaa: 0.0 ± 0.0
Cys
1.101CysAla: 1.101 ± 0.034
0.109CysCys: 0.109 ± 0.008
0.476CysAsp: 0.476 ± 0.02
0.396CysGlu: 0.396 ± 0.019
0.373CysPhe: 0.373 ± 0.018
0.91CysGly: 0.91 ± 0.029
0.284CysHis: 0.284 ± 0.02
0.37CysIle: 0.37 ± 0.016
0.183CysLys: 0.183 ± 0.014
0.985CysLeu: 0.985 ± 0.03
0.142CysMet: 0.142 ± 0.011
0.208CysAsn: 0.208 ± 0.014
0.464CysPro: 0.464 ± 0.021
0.256CysGln: 0.256 ± 0.016
0.662CysArg: 0.662 ± 0.024
0.472CysSer: 0.472 ± 0.021
0.497CysThr: 0.497 ± 0.021
0.688CysVal: 0.688 ± 0.029
0.151CysTrp: 0.151 ± 0.01
0.265CysTyr: 0.265 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
5.474AspAla: 5.474 ± 0.067
0.471AspCys: 0.471 ± 0.019
2.357AspAsp: 2.357 ± 0.047
2.921AspGlu: 2.921 ± 0.057
2.444AspPhe: 2.444 ± 0.05
4.357AspGly: 4.357 ± 0.079
1.159AspHis: 1.159 ± 0.033
2.201AspIle: 2.201 ± 0.047
1.77AspLys: 1.77 ± 0.044
5.434AspLeu: 5.434 ± 0.067
0.778AspMet: 0.778 ± 0.024
1.348AspAsn: 1.348 ± 0.032
3.151AspPro: 3.151 ± 0.05
1.705AspGln: 1.705 ± 0.038
3.5AspArg: 3.5 ± 0.056
2.196AspSer: 2.196 ± 0.037
2.543AspThr: 2.543 ± 0.046
3.216AspVal: 3.216 ± 0.052
0.901AspTrp: 0.901 ± 0.029
1.708AspTyr: 1.708 ± 0.035
0.0AspXaa: 0.0 ± 0.0
Glu
6.075GluAla: 6.075 ± 0.092
0.377GluCys: 0.377 ± 0.02
1.993GluAsp: 1.993 ± 0.045
2.628GluGlu: 2.628 ± 0.065
2.314GluPhe: 2.314 ± 0.04
3.31GluGly: 3.31 ± 0.065
1.214GluHis: 1.214 ± 0.03
3.128GluIle: 3.128 ± 0.061
2.842GluLys: 2.842 ± 0.059
5.871GluLeu: 5.871 ± 0.093
1.142GluMet: 1.142 ± 0.034
1.585GluAsn: 1.585 ± 0.037
2.53GluPro: 2.53 ± 0.045
2.137GluGln: 2.137 ± 0.046
3.655GluArg: 3.655 ± 0.067
2.488GluSer: 2.488 ± 0.05
2.959GluThr: 2.959 ± 0.045
3.699GluVal: 3.699 ± 0.059
0.831GluTrp: 0.831 ± 0.03
1.1GluTyr: 1.1 ± 0.03
0.0GluXaa: 0.0 ± 0.0
Phe
4.74PheAla: 4.74 ± 0.078
0.443PheCys: 0.443 ± 0.022
2.29PheAsp: 2.29 ± 0.044
1.999PheGlu: 1.999 ± 0.046
1.772PhePhe: 1.772 ± 0.047
3.516PheGly: 3.516 ± 0.062
0.891PheHis: 0.891 ± 0.027
1.782PheIle: 1.782 ± 0.039
1.447PheLys: 1.447 ± 0.037
3.876PheLeu: 3.876 ± 0.067
0.757PheMet: 0.757 ± 0.027
1.494PheAsn: 1.494 ± 0.04
1.964PhePro: 1.964 ± 0.045
1.214PheGln: 1.214 ± 0.028
2.413PheArg: 2.413 ± 0.047
2.461PheSer: 2.461 ± 0.052
2.727PheThr: 2.727 ± 0.051
2.889PheVal: 2.889 ± 0.053
0.619PheTrp: 0.619 ± 0.024
1.145PheTyr: 1.145 ± 0.035
0.0PheXaa: 0.0 ± 0.0
Gly
8.759GlyAla: 8.759 ± 0.202
0.875GlyCys: 0.875 ± 0.035
3.915GlyAsp: 3.915 ± 0.066
4.066GlyGlu: 4.066 ± 0.063
3.619GlyPhe: 3.619 ± 0.066
7.169GlyGly: 7.169 ± 0.143
1.952GlyHis: 1.952 ± 0.041
3.894GlyIle: 3.894 ± 0.057
3.436GlyLys: 3.436 ± 0.072
9.276GlyLeu: 9.276 ± 0.107
1.627GlyMet: 1.627 ± 0.037
2.35GlyAsn: 2.35 ± 0.082
3.43GlyPro: 3.43 ± 0.063
2.947GlyGln: 2.947 ± 0.055
6.016GlyArg: 6.016 ± 0.093
4.545GlySer: 4.545 ± 0.109
4.912GlyThr: 4.912 ± 0.218
6.037GlyVal: 6.037 ± 0.077
1.637GlyTrp: 1.637 ± 0.042
2.51GlyTyr: 2.51 ± 0.051
0.0GlyXaa: 0.0 ± 0.0
His
2.536HisAla: 2.536 ± 0.045
0.261HisCys: 0.261 ± 0.015
1.192HisAsp: 1.192 ± 0.031
1.234HisGlu: 1.234 ± 0.034
0.991HisPhe: 0.991 ± 0.032
2.078HisGly: 2.078 ± 0.045
0.664HisHis: 0.664 ± 0.025
0.897HisIle: 0.897 ± 0.028
0.552HisLys: 0.552 ± 0.024
2.402HisLeu: 2.402 ± 0.044
0.369HisMet: 0.369 ± 0.018
0.606HisAsn: 0.606 ± 0.024
1.533HisPro: 1.533 ± 0.038
0.685HisGln: 0.685 ± 0.023
1.607HisArg: 1.607 ± 0.035
1.005HisSer: 1.005 ± 0.027
1.114HisThr: 1.114 ± 0.031
1.509HisVal: 1.509 ± 0.034
0.417HisTrp: 0.417 ± 0.021
0.737HisTyr: 0.737 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
5.582IleAla: 5.582 ± 0.075
0.445IleCys: 0.445 ± 0.019
2.636IleAsp: 2.636 ± 0.046
2.702IleGlu: 2.702 ± 0.047
1.784IlePhe: 1.784 ± 0.037
3.875IleGly: 3.875 ± 0.056
1.01IleHis: 1.01 ± 0.032
2.212IleIle: 2.212 ± 0.048
1.749IleLys: 1.749 ± 0.042
4.039IleLeu: 4.039 ± 0.054
0.803IleMet: 0.803 ± 0.027
1.61IleAsn: 1.61 ± 0.052
2.338IlePro: 2.338 ± 0.051
1.216IleGln: 1.216 ± 0.034
2.789IleArg: 2.789 ± 0.052
2.52IleSer: 2.52 ± 0.055
2.953IleThr: 2.953 ± 0.078
3.414IleVal: 3.414 ± 0.052
0.532IleTrp: 0.532 ± 0.021
1.234IleTyr: 1.234 ± 0.029
0.0IleXaa: 0.0 ± 0.0
Lys
4.282LysAla: 4.282 ± 0.08
0.235LysCys: 0.235 ± 0.014
1.961LysAsp: 1.961 ± 0.051
2.022LysGlu: 2.022 ± 0.051
1.552LysPhe: 1.552 ± 0.041
2.551LysGly: 2.551 ± 0.057
0.826LysHis: 0.826 ± 0.027
2.099LysIle: 2.099 ± 0.044
2.067LysLys: 2.067 ± 0.05
4.282LysLeu: 4.282 ± 0.077
0.929LysMet: 0.929 ± 0.028
1.262LysAsn: 1.262 ± 0.035
2.547LysPro: 2.547 ± 0.054
1.395LysGln: 1.395 ± 0.041
2.28LysArg: 2.28 ± 0.049
2.021LysSer: 2.021 ± 0.049
2.337LysThr: 2.337 ± 0.049
2.755LysVal: 2.755 ± 0.057
0.533LysTrp: 0.533 ± 0.021
0.952LysTyr: 0.952 ± 0.031
0.0LysXaa: 0.0 ± 0.0
Leu
14.657LeuAla: 14.657 ± 0.13
1.072LeuCys: 1.072 ± 0.031
5.302LeuAsp: 5.302 ± 0.079
5.27LeuGlu: 5.27 ± 0.09
3.963LeuPhe: 3.963 ± 0.064
8.996LeuGly: 8.996 ± 0.102
2.387LeuHis: 2.387 ± 0.047
4.35LeuIle: 4.35 ± 0.063
4.307LeuLys: 4.307 ± 0.077
11.447LeuLeu: 11.447 ± 0.148
1.937LeuMet: 1.937 ± 0.04
3.098LeuAsn: 3.098 ± 0.071
6.439LeuPro: 6.439 ± 0.088
3.506LeuGln: 3.506 ± 0.063
7.684LeuArg: 7.684 ± 0.097
5.41LeuSer: 5.41 ± 0.079
6.662LeuThr: 6.662 ± 0.159
7.839LeuVal: 7.839 ± 0.098
1.421LeuTrp: 1.421 ± 0.038
2.215LeuTyr: 2.215 ± 0.049
0.0LeuXaa: 0.0 ± 0.0
Met
2.127MetAla: 2.127 ± 0.043
0.158MetCys: 0.158 ± 0.013
0.878MetAsp: 0.878 ± 0.029
0.92MetGlu: 0.92 ± 0.026
0.636MetPhe: 0.636 ± 0.025
1.283MetGly: 1.283 ± 0.036
0.41MetHis: 0.41 ± 0.018
0.921MetIle: 0.921 ± 0.027
1.223MetLys: 1.223 ± 0.032
2.004MetLeu: 2.004 ± 0.046
0.442MetMet: 0.442 ± 0.02
0.808MetAsn: 0.808 ± 0.024
1.288MetPro: 1.288 ± 0.036
0.686MetGln: 0.686 ± 0.022
1.274MetArg: 1.274 ± 0.031
1.266MetSer: 1.266 ± 0.033
1.215MetThr: 1.215 ± 0.029
1.197MetVal: 1.197 ± 0.033
0.175MetTrp: 0.175 ± 0.013
0.239MetTyr: 0.239 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
3.099AsnAla: 3.099 ± 0.081
0.259AsnCys: 0.259 ± 0.015
1.339AsnAsp: 1.339 ± 0.037
1.329AsnGlu: 1.329 ± 0.03
1.323AsnPhe: 1.323 ± 0.032
2.448AsnGly: 2.448 ± 0.084
0.624AsnHis: 0.624 ± 0.023
1.316AsnIle: 1.316 ± 0.042
0.858AsnLys: 0.858 ± 0.03
3.298AsnLeu: 3.298 ± 0.061
0.484AsnMet: 0.484 ± 0.022
0.987AsnAsn: 0.987 ± 0.052
2.354AsnPro: 2.354 ± 0.047
1.032AsnGln: 1.032 ± 0.03
1.886AsnArg: 1.886 ± 0.039
1.571AsnSer: 1.571 ± 0.054
1.68AsnThr: 1.68 ± 0.104
2.072AsnVal: 2.072 ± 0.064
0.477AsnTrp: 0.477 ± 0.018
0.961AsnTyr: 0.961 ± 0.032
0.0AsnXaa: 0.0 ± 0.0
Pro
8.746ProAla: 8.746 ± 0.12
0.33ProCys: 0.33 ± 0.014
3.34ProAsp: 3.34 ± 0.046
3.434ProGlu: 3.434 ± 0.058
2.109ProPhe: 2.109 ± 0.045
5.237ProGly: 5.237 ± 0.078
1.18ProHis: 1.18 ± 0.034
1.837ProIle: 1.837 ± 0.041
2.06ProLys: 2.06 ± 0.039
5.289ProLeu: 5.289 ± 0.071
1.074ProMet: 1.074 ± 0.027
1.419ProAsn: 1.419 ± 0.036
3.394ProPro: 3.394 ± 0.077
1.557ProGln: 1.557 ± 0.037
3.315ProArg: 3.315 ± 0.063
2.556ProSer: 2.556 ± 0.042
2.823ProThr: 2.823 ± 0.054
4.71ProVal: 4.71 ± 0.074
0.877ProTrp: 0.877 ± 0.032
1.206ProTyr: 1.206 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
4.131GlnAla: 4.131 ± 0.065
0.226GlnCys: 0.226 ± 0.012
1.305GlnAsp: 1.305 ± 0.033
1.555GlnGlu: 1.555 ± 0.043
1.35GlnPhe: 1.35 ± 0.031
2.215GlnGly: 2.215 ± 0.044
0.805GlnHis: 0.805 ± 0.026
1.741GlnIle: 1.741 ± 0.034
1.41GlnLys: 1.41 ± 0.037
4.035GlnLeu: 4.035 ± 0.075
0.681GlnMet: 0.681 ± 0.027
0.956GlnAsn: 0.956 ± 0.03
2.185GlnPro: 2.185 ± 0.046
1.461GlnGln: 1.461 ± 0.036
2.5GlnArg: 2.5 ± 0.057
1.715GlnSer: 1.715 ± 0.04
1.814GlnThr: 1.814 ± 0.042
2.556GlnVal: 2.556 ± 0.056
0.499GlnTrp: 0.499 ± 0.024
0.702GlnTyr: 0.702 ± 0.027
0.0GlnXaa: 0.0 ± 0.0
Arg
7.475ArgAla: 7.475 ± 0.105
0.533ArgCys: 0.533 ± 0.023
3.446ArgAsp: 3.446 ± 0.054
4.129ArgGlu: 4.129 ± 0.081
2.72ArgPhe: 2.72 ± 0.05
4.536ArgGly: 4.536 ± 0.072
1.691ArgHis: 1.691 ± 0.036
3.355ArgIle: 3.355 ± 0.057
2.431ArgLys: 2.431 ± 0.056
7.992ArgLeu: 7.992 ± 0.118
1.452ArgMet: 1.452 ± 0.038
1.819ArgAsn: 1.819 ± 0.042
3.729ArgPro: 3.729 ± 0.066
2.71ArgGln: 2.71 ± 0.049
5.222ArgArg: 5.222 ± 0.091
3.212ArgSer: 3.212 ± 0.052
3.664ArgThr: 3.664 ± 0.062
4.734ArgVal: 4.734 ± 0.076
1.133ArgTrp: 1.133 ± 0.035
1.89ArgTyr: 1.89 ± 0.045
0.0ArgXaa: 0.0 ± 0.0
Ser
5.91SerAla: 5.91 ± 0.089
0.409SerCys: 0.409 ± 0.022
2.367SerAsp: 2.367 ± 0.042
2.211SerGlu: 2.211 ± 0.051
2.238SerPhe: 2.238 ± 0.048
4.874SerGly: 4.874 ± 0.145
1.107SerHis: 1.107 ± 0.032
2.3SerIle: 2.3 ± 0.047
1.612SerLys: 1.612 ± 0.037
5.754SerLeu: 5.754 ± 0.083
0.973SerMet: 0.973 ± 0.032
1.373SerAsn: 1.373 ± 0.048
3.186SerPro: 3.186 ± 0.061
1.508SerGln: 1.508 ± 0.037
3.265SerArg: 3.265 ± 0.056
2.851SerSer: 2.851 ± 0.061
2.874SerThr: 2.874 ± 0.077
3.68SerVal: 3.68 ± 0.059
0.806SerTrp: 0.806 ± 0.026
1.47SerTyr: 1.47 ± 0.037
0.0SerXaa: 0.0 ± 0.0
Thr
6.986ThrAla: 6.986 ± 0.109
0.414ThrCys: 0.414 ± 0.017
2.991ThrAsp: 2.991 ± 0.052
2.742ThrGlu: 2.742 ± 0.055
2.201ThrPhe: 2.201 ± 0.05
5.958ThrGly: 5.958 ± 0.239
1.173ThrHis: 1.173 ± 0.034
2.664ThrIle: 2.664 ± 0.078
2.076ThrLys: 2.076 ± 0.05
6.315ThrLeu: 6.315 ± 0.174
1.018ThrMet: 1.018 ± 0.031
1.666ThrAsn: 1.666 ± 0.084
3.865ThrPro: 3.865 ± 0.057
1.634ThrGln: 1.634 ± 0.043
3.302ThrArg: 3.302 ± 0.049
2.781ThrSer: 2.781 ± 0.081
3.455ThrThr: 3.455 ± 0.169
4.618ThrVal: 4.618 ± 0.111
0.872ThrTrp: 0.872 ± 0.03
1.482ThrTyr: 1.482 ± 0.039
0.0ThrXaa: 0.0 ± 0.0
Val
8.57ValAla: 8.57 ± 0.089
0.803ValCys: 0.803 ± 0.028
3.481ValAsp: 3.481 ± 0.06
3.799ValGlu: 3.799 ± 0.068
3.08ValPhe: 3.08 ± 0.062
5.242ValGly: 5.242 ± 0.063
1.53ValHis: 1.53 ± 0.035
3.69ValIle: 3.69 ± 0.058
2.723ValLys: 2.723 ± 0.056
7.792ValLeu: 7.792 ± 0.093
1.441ValMet: 1.441 ± 0.039
2.275ValAsn: 2.275 ± 0.066
3.945ValPro: 3.945 ± 0.06
2.252ValGln: 2.252 ± 0.046
4.902ValArg: 4.902 ± 0.082
3.94ValSer: 3.94 ± 0.074
4.825ValThr: 4.825 ± 0.112
5.783ValVal: 5.783 ± 0.078
1.02ValTrp: 1.02 ± 0.029
1.684ValTyr: 1.684 ± 0.043
0.0ValXaa: 0.0 ± 0.0
Trp
1.481TrpAla: 1.481 ± 0.044
0.189TrpCys: 0.189 ± 0.013
0.688TrpAsp: 0.688 ± 0.025
0.684TrpGlu: 0.684 ± 0.026
0.684TrpPhe: 0.684 ± 0.027
1.035TrpGly: 1.035 ± 0.034
0.427TrpHis: 0.427 ± 0.02
0.696TrpIle: 0.696 ± 0.024
0.537TrpLys: 0.537 ± 0.019
2.068TrpLeu: 2.068 ± 0.054
0.343TrpMet: 0.343 ± 0.016
0.538TrpAsn: 0.538 ± 0.021
0.783TrpPro: 0.783 ± 0.029
0.693TrpGln: 0.693 ± 0.024
1.304TrpArg: 1.304 ± 0.037
0.94TrpSer: 0.94 ± 0.032
0.922TrpThr: 0.922 ± 0.029
0.945TrpVal: 0.945 ± 0.029
0.34TrpTrp: 0.34 ± 0.018
0.274TrpTyr: 0.274 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.689TyrAla: 2.689 ± 0.059
0.241TyrCys: 0.241 ± 0.015
1.45TyrAsp: 1.45 ± 0.038
1.249TyrGlu: 1.249 ± 0.032
1.243TyrPhe: 1.243 ± 0.036
2.124TyrGly: 2.124 ± 0.046
0.653TyrHis: 0.653 ± 0.023
0.954TyrIle: 0.954 ± 0.03
0.677TyrLys: 0.677 ± 0.023
2.715TyrLeu: 2.715 ± 0.053
0.376TyrMet: 0.376 ± 0.017
0.81TyrAsn: 0.81 ± 0.028
1.312TyrPro: 1.312 ± 0.036
0.945TyrGln: 0.945 ± 0.031
1.943TyrArg: 1.943 ± 0.038
1.357TyrSer: 1.357 ± 0.039
1.418TyrThr: 1.418 ± 0.036
1.779TyrVal: 1.779 ± 0.039
0.457TyrTrp: 0.457 ± 0.019
0.882TyrTyr: 0.882 ± 0.031
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 3522 proteins (1231825 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