Amino acid dipepetide frequency for Azoarcus sp. CC-YHH838

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
18.942AlaAla: 18.942 ± 0.173
1.376AlaCys: 1.376 ± 0.039
7.26AlaAsp: 7.26 ± 0.08
8.354AlaGlu: 8.354 ± 0.102
4.08AlaPhe: 4.08 ± 0.059
12.181AlaGly: 12.181 ± 0.14
2.873AlaHis: 2.873 ± 0.049
4.988AlaIle: 4.988 ± 0.066
2.73AlaLys: 2.73 ± 0.062
15.926AlaLeu: 15.926 ± 0.164
2.878AlaMet: 2.878 ± 0.054
2.766AlaAsn: 2.766 ± 0.048
6.145AlaPro: 6.145 ± 0.08
4.863AlaGln: 4.863 ± 0.072
11.146AlaArg: 11.146 ± 0.119
6.05AlaSer: 6.05 ± 0.079
5.763AlaThr: 5.763 ± 0.084
9.009AlaVal: 9.009 ± 0.094
1.948AlaTrp: 1.948 ± 0.038
2.546AlaTyr: 2.546 ± 0.042
0.0AlaXaa: 0.0 ± 0.0
Cys
1.255CysAla: 1.255 ± 0.031
0.143CysCys: 0.143 ± 0.01
0.495CysAsp: 0.495 ± 0.02
0.506CysGlu: 0.506 ± 0.023
0.316CysPhe: 0.316 ± 0.015
0.954CysGly: 0.954 ± 0.03
0.305CysHis: 0.305 ± 0.018
0.376CysIle: 0.376 ± 0.019
0.199CysLys: 0.199 ± 0.012
0.888CysLeu: 0.888 ± 0.031
0.196CysMet: 0.196 ± 0.011
0.211CysAsn: 0.211 ± 0.014
0.528CysPro: 0.528 ± 0.022
0.228CysGln: 0.228 ± 0.014
0.695CysArg: 0.695 ± 0.027
0.471CysSer: 0.471 ± 0.02
0.475CysThr: 0.475 ± 0.02
0.69CysVal: 0.69 ± 0.026
0.136CysTrp: 0.136 ± 0.01
0.223CysTyr: 0.223 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
7.244AspAla: 7.244 ± 0.085
0.485AspCys: 0.485 ± 0.022
2.989AspAsp: 2.989 ± 0.056
3.652AspGlu: 3.652 ± 0.057
2.16AspPhe: 2.16 ± 0.037
5.355AspGly: 5.355 ± 0.101
1.154AspHis: 1.154 ± 0.027
2.39AspIle: 2.39 ± 0.046
1.445AspLys: 1.445 ± 0.035
5.69AspLeu: 5.69 ± 0.075
1.028AspMet: 1.028 ± 0.026
1.324AspAsn: 1.324 ± 0.054
3.118AspPro: 3.118 ± 0.05
1.534AspGln: 1.534 ± 0.036
3.459AspArg: 3.459 ± 0.054
2.246AspSer: 2.246 ± 0.045
2.723AspThr: 2.723 ± 0.059
3.645AspVal: 3.645 ± 0.055
1.015AspTrp: 1.015 ± 0.03
1.533AspTyr: 1.533 ± 0.032
0.0AspXaa: 0.0 ± 0.0
Glu
8.019GluAla: 8.019 ± 0.095
0.43GluCys: 0.43 ± 0.018
2.657GluAsp: 2.657 ± 0.047
3.191GluGlu: 3.191 ± 0.067
1.852GluPhe: 1.852 ± 0.037
4.14GluGly: 4.14 ± 0.058
1.648GluHis: 1.648 ± 0.038
3.121GluIle: 3.121 ± 0.052
1.652GluLys: 1.652 ± 0.037
6.65GluLeu: 6.65 ± 0.076
1.229GluMet: 1.229 ± 0.032
1.45GluAsn: 1.45 ± 0.037
2.526GluPro: 2.526 ± 0.042
2.723GluGln: 2.723 ± 0.046
6.07GluArg: 6.07 ± 0.072
2.661GluSer: 2.661 ± 0.045
2.744GluThr: 2.744 ± 0.04
4.413GluVal: 4.413 ± 0.061
0.776GluTrp: 0.776 ± 0.024
1.226GluTyr: 1.226 ± 0.032
0.0GluXaa: 0.0 ± 0.0
Phe
4.281PheAla: 4.281 ± 0.06
0.36PheCys: 0.36 ± 0.017
2.532PheAsp: 2.532 ± 0.046
2.144PheGlu: 2.144 ± 0.042
1.303PhePhe: 1.303 ± 0.033
3.333PheGly: 3.333 ± 0.051
0.771PheHis: 0.771 ± 0.023
1.569PheIle: 1.569 ± 0.032
0.895PheLys: 0.895 ± 0.025
3.194PheLeu: 3.194 ± 0.06
0.697PheMet: 0.697 ± 0.023
1.036PheAsn: 1.036 ± 0.027
1.486PhePro: 1.486 ± 0.037
1.047PheGln: 1.047 ± 0.024
2.146PheArg: 2.146 ± 0.04
2.165PheSer: 2.165 ± 0.039
1.727PheThr: 1.727 ± 0.041
2.66PheVal: 2.66 ± 0.045
0.489PheTrp: 0.489 ± 0.021
0.84PheTyr: 0.84 ± 0.024
0.0PheXaa: 0.0 ± 0.0
Gly
9.668GlyAla: 9.668 ± 0.109
0.939GlyCys: 0.939 ± 0.028
4.172GlyAsp: 4.172 ± 0.065
5.723GlyGlu: 5.723 ± 0.07
3.227GlyPhe: 3.227 ± 0.058
7.695GlyGly: 7.695 ± 0.154
1.955GlyHis: 1.955 ± 0.038
4.037GlyIle: 4.037 ± 0.058
2.933GlyLys: 2.933 ± 0.059
9.469GlyLeu: 9.469 ± 0.082
2.24GlyMet: 2.24 ± 0.04
2.239GlyAsn: 2.239 ± 0.057
2.877GlyPro: 2.877 ± 0.052
3.114GlyGln: 3.114 ± 0.051
6.704GlyArg: 6.704 ± 0.081
4.36GlySer: 4.36 ± 0.086
4.455GlyThr: 4.455 ± 0.107
6.362GlyVal: 6.362 ± 0.071
1.427GlyTrp: 1.427 ± 0.036
2.27GlyTyr: 2.27 ± 0.038
0.0GlyXaa: 0.0 ± 0.0
His
3.127HisAla: 3.127 ± 0.054
0.291HisCys: 0.291 ± 0.014
1.308HisAsp: 1.308 ± 0.032
1.224HisGlu: 1.224 ± 0.031
0.854HisPhe: 0.854 ± 0.023
2.387HisGly: 2.387 ± 0.043
0.652HisHis: 0.652 ± 0.023
0.885HisIle: 0.885 ± 0.024
0.495HisLys: 0.495 ± 0.021
2.484HisLeu: 2.484 ± 0.045
0.425HisMet: 0.425 ± 0.019
0.504HisAsn: 0.504 ± 0.019
1.565HisPro: 1.565 ± 0.037
0.683HisGln: 0.683 ± 0.023
1.658HisArg: 1.658 ± 0.036
0.972HisSer: 0.972 ± 0.029
1.069HisThr: 1.069 ± 0.03
1.45HisVal: 1.45 ± 0.037
0.397HisTrp: 0.397 ± 0.019
0.695HisTyr: 0.695 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
5.995IleAla: 5.995 ± 0.074
0.36IleCys: 0.36 ± 0.017
3.227IleAsp: 3.227 ± 0.051
3.167IleGlu: 3.167 ± 0.059
1.233IlePhe: 1.233 ± 0.033
4.193IleGly: 4.193 ± 0.062
1.029IleHis: 1.029 ± 0.029
1.494IleIle: 1.494 ± 0.038
1.095IleLys: 1.095 ± 0.034
3.792IleLeu: 3.792 ± 0.059
0.641IleMet: 0.641 ± 0.023
1.356IleAsn: 1.356 ± 0.04
2.032IlePro: 2.032 ± 0.042
1.281IleGln: 1.281 ± 0.03
3.002IleArg: 3.002 ± 0.048
2.317IleSer: 2.317 ± 0.043
2.264IleThr: 2.264 ± 0.044
3.394IleVal: 3.394 ± 0.057
0.437IleTrp: 0.437 ± 0.017
0.921IleTyr: 0.921 ± 0.028
0.0IleXaa: 0.0 ± 0.0
Lys
3.091LysAla: 3.091 ± 0.064
0.159LysCys: 0.159 ± 0.011
1.256LysAsp: 1.256 ± 0.034
1.362LysGlu: 1.362 ± 0.038
0.73LysPhe: 0.73 ± 0.029
1.958LysGly: 1.958 ± 0.04
0.573LysHis: 0.573 ± 0.021
1.236LysIle: 1.236 ± 0.037
0.985LysLys: 0.985 ± 0.034
2.871LysLeu: 2.871 ± 0.052
0.545LysMet: 0.545 ± 0.022
0.79LysAsn: 0.79 ± 0.024
1.546LysPro: 1.546 ± 0.041
0.983LysGln: 0.983 ± 0.032
1.97LysArg: 1.97 ± 0.041
1.313LysSer: 1.313 ± 0.034
1.484LysThr: 1.484 ± 0.035
2.047LysVal: 2.047 ± 0.052
0.286LysTrp: 0.286 ± 0.015
0.601LysTyr: 0.601 ± 0.023
0.0LysXaa: 0.0 ± 0.0
Leu
16.629LeuAla: 16.629 ± 0.158
1.1LeuCys: 1.1 ± 0.033
6.591LeuAsp: 6.591 ± 0.073
6.23LeuGlu: 6.23 ± 0.082
3.862LeuPhe: 3.862 ± 0.062
9.25LeuGly: 9.25 ± 0.086
2.459LeuHis: 2.459 ± 0.044
4.535LeuIle: 4.535 ± 0.055
2.934LeuLys: 2.934 ± 0.057
12.266LeuLeu: 12.266 ± 0.14
2.123LeuMet: 2.123 ± 0.044
2.798LeuAsn: 2.798 ± 0.053
6.541LeuPro: 6.541 ± 0.08
3.465LeuGln: 3.465 ± 0.05
9.114LeuArg: 9.114 ± 0.109
6.145LeuSer: 6.145 ± 0.075
5.33LeuThr: 5.33 ± 0.092
7.512LeuVal: 7.512 ± 0.088
1.263LeuTrp: 1.263 ± 0.036
2.278LeuTyr: 2.278 ± 0.051
0.0LeuXaa: 0.0 ± 0.0
Met
2.532MetAla: 2.532 ± 0.049
0.131MetCys: 0.131 ± 0.01
0.99MetAsp: 0.99 ± 0.025
1.067MetGlu: 1.067 ± 0.031
0.573MetPhe: 0.573 ± 0.024
1.464MetGly: 1.464 ± 0.036
0.454MetHis: 0.454 ± 0.02
0.842MetIle: 0.842 ± 0.027
0.831MetLys: 0.831 ± 0.027
2.417MetLeu: 2.417 ± 0.045
0.485MetMet: 0.485 ± 0.019
0.81MetAsn: 0.81 ± 0.024
1.338MetPro: 1.338 ± 0.032
0.864MetGln: 0.864 ± 0.024
1.633MetArg: 1.633 ± 0.033
1.427MetSer: 1.427 ± 0.031
1.186MetThr: 1.186 ± 0.03
1.496MetVal: 1.496 ± 0.034
0.181MetTrp: 0.181 ± 0.011
0.305MetTyr: 0.305 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
3.107AsnAla: 3.107 ± 0.061
0.25AsnCys: 0.25 ± 0.013
1.251AsnAsp: 1.251 ± 0.037
1.176AsnGlu: 1.176 ± 0.028
0.85AsnPhe: 0.85 ± 0.028
2.206AsnGly: 2.206 ± 0.056
0.519AsnHis: 0.519 ± 0.018
1.163AsnIle: 1.163 ± 0.03
0.667AsnLys: 0.667 ± 0.027
2.839AsnLeu: 2.839 ± 0.039
0.518AsnMet: 0.518 ± 0.021
0.686AsnAsn: 0.686 ± 0.027
1.762AsnPro: 1.762 ± 0.031
0.853AsnGln: 0.853 ± 0.026
1.894AsnArg: 1.894 ± 0.043
1.071AsnSer: 1.071 ± 0.033
1.385AsnThr: 1.385 ± 0.043
1.81AsnVal: 1.81 ± 0.038
0.412AsnTrp: 0.412 ± 0.018
0.677AsnTyr: 0.677 ± 0.03
0.0AsnXaa: 0.0 ± 0.0
Pro
7.806ProAla: 7.806 ± 0.101
0.413ProCys: 0.413 ± 0.02
3.171ProAsp: 3.171 ± 0.047
3.449ProGlu: 3.449 ± 0.055
1.723ProPhe: 1.723 ± 0.038
4.677ProGly: 4.677 ± 0.064
1.079ProHis: 1.079 ± 0.032
1.808ProIle: 1.808 ± 0.039
1.085ProLys: 1.085 ± 0.039
5.336ProLeu: 5.336 ± 0.072
1.03ProMet: 1.03 ± 0.026
1.102ProAsn: 1.102 ± 0.028
2.969ProPro: 2.969 ± 0.07
1.886ProGln: 1.886 ± 0.036
3.463ProArg: 3.463 ± 0.06
2.33ProSer: 2.33 ± 0.043
2.226ProThr: 2.226 ± 0.047
4.105ProVal: 4.105 ± 0.059
0.769ProTrp: 0.769 ± 0.021
1.106ProTyr: 1.106 ± 0.025
0.0ProXaa: 0.0 ± 0.0
Gln
5.097GlnAla: 5.097 ± 0.059
0.24GlnCys: 0.24 ± 0.013
1.558GlnAsp: 1.558 ± 0.033
1.733GlnGlu: 1.733 ± 0.043
1.097GlnPhe: 1.097 ± 0.027
2.835GlnGly: 2.835 ± 0.049
0.84GlnHis: 0.84 ± 0.028
1.692GlnIle: 1.692 ± 0.035
0.858GlnLys: 0.858 ± 0.028
3.655GlnLeu: 3.655 ± 0.056
0.798GlnMet: 0.798 ± 0.025
0.801GlnAsn: 0.801 ± 0.026
1.987GlnPro: 1.987 ± 0.038
1.497GlnGln: 1.497 ± 0.032
3.188GlnArg: 3.188 ± 0.05
1.693GlnSer: 1.693 ± 0.042
1.677GlnThr: 1.677 ± 0.034
2.586GlnVal: 2.586 ± 0.047
0.507GlnTrp: 0.507 ± 0.017
0.757GlnTyr: 0.757 ± 0.026
0.0GlnXaa: 0.0 ± 0.0
Arg
9.594ArgAla: 9.594 ± 0.104
0.669ArgCys: 0.669 ± 0.024
3.925ArgAsp: 3.925 ± 0.049
5.025ArgGlu: 5.025 ± 0.069
3.197ArgPhe: 3.197 ± 0.056
5.283ArgGly: 5.283 ± 0.061
2.269ArgHis: 2.269 ± 0.048
4.174ArgIle: 4.174 ± 0.06
2.001ArgLys: 2.001 ± 0.044
9.776ArgLeu: 9.776 ± 0.111
1.955ArgMet: 1.955 ± 0.041
1.976ArgAsn: 1.976 ± 0.038
3.76ArgPro: 3.76 ± 0.065
3.176ArgGln: 3.176 ± 0.052
6.615ArgArg: 6.615 ± 0.086
3.417ArgSer: 3.417 ± 0.057
3.398ArgThr: 3.398 ± 0.058
5.713ArgVal: 5.713 ± 0.065
1.151ArgTrp: 1.151 ± 0.029
2.122ArgTyr: 2.122 ± 0.041
0.0ArgXaa: 0.0 ± 0.0
Ser
6.55SerAla: 6.55 ± 0.081
0.416SerCys: 0.416 ± 0.02
2.27SerAsp: 2.27 ± 0.046
2.377SerGlu: 2.377 ± 0.044
1.88SerPhe: 1.88 ± 0.04
5.227SerGly: 5.227 ± 0.082
1.021SerHis: 1.021 ± 0.029
2.272SerIle: 2.272 ± 0.043
1.13SerLys: 1.13 ± 0.034
5.278SerLeu: 5.278 ± 0.081
1.112SerMet: 1.112 ± 0.029
1.267SerAsn: 1.267 ± 0.035
2.606SerPro: 2.606 ± 0.039
1.434SerGln: 1.434 ± 0.037
3.605SerArg: 3.605 ± 0.047
2.656SerSer: 2.656 ± 0.051
2.718SerThr: 2.718 ± 0.046
3.846SerVal: 3.846 ± 0.056
0.705SerTrp: 0.705 ± 0.023
1.205SerTyr: 1.205 ± 0.036
0.0SerXaa: 0.0 ± 0.0
Thr
5.719ThrAla: 5.719 ± 0.077
0.411ThrCys: 0.411 ± 0.017
2.434ThrAsp: 2.434 ± 0.05
2.462ThrGlu: 2.462 ± 0.043
1.517ThrPhe: 1.517 ± 0.031
4.496ThrGly: 4.496 ± 0.094
1.133ThrHis: 1.133 ± 0.029
1.96ThrIle: 1.96 ± 0.043
0.951ThrLys: 0.951 ± 0.027
6.554ThrLeu: 6.554 ± 0.127
0.815ThrMet: 0.815 ± 0.025
1.124ThrAsn: 1.124 ± 0.039
3.234ThrPro: 3.234 ± 0.05
1.539ThrGln: 1.539 ± 0.035
3.748ThrArg: 3.748 ± 0.063
2.209ThrSer: 2.209 ± 0.046
2.441ThrThr: 2.441 ± 0.064
4.099ThrVal: 4.099 ± 0.076
0.643ThrTrp: 0.643 ± 0.025
1.065ThrTyr: 1.065 ± 0.032
0.0ThrXaa: 0.0 ± 0.0
Val
9.113ValAla: 9.113 ± 0.075
0.728ValCys: 0.728 ± 0.028
4.177ValAsp: 4.177 ± 0.058
4.605ValGlu: 4.605 ± 0.063
2.828ValPhe: 2.828 ± 0.05
5.447ValGly: 5.447 ± 0.067
1.529ValHis: 1.529 ± 0.036
3.304ValIle: 3.304 ± 0.055
1.929ValLys: 1.929 ± 0.051
8.536ValLeu: 8.536 ± 0.09
1.558ValMet: 1.558 ± 0.035
1.836ValAsn: 1.836 ± 0.039
3.686ValPro: 3.686 ± 0.054
2.294ValGln: 2.294 ± 0.046
5.637ValArg: 5.637 ± 0.069
4.193ValSer: 4.193 ± 0.056
3.612ValThr: 3.612 ± 0.065
6.038ValVal: 6.038 ± 0.074
0.922ValTrp: 0.922 ± 0.03
1.465ValTyr: 1.465 ± 0.037
0.0ValXaa: 0.0 ± 0.0
Trp
1.334TrpAla: 1.334 ± 0.032
0.147TrpCys: 0.147 ± 0.01
0.588TrpAsp: 0.588 ± 0.022
0.602TrpGlu: 0.602 ± 0.021
0.526TrpPhe: 0.526 ± 0.022
0.84TrpGly: 0.84 ± 0.027
0.356TrpHis: 0.356 ± 0.018
0.638TrpIle: 0.638 ± 0.02
0.402TrpLys: 0.402 ± 0.016
2.172TrpLeu: 2.172 ± 0.05
0.361TrpMet: 0.361 ± 0.016
0.438TrpAsn: 0.438 ± 0.019
0.654TrpPro: 0.654 ± 0.021
0.759TrpGln: 0.759 ± 0.026
1.401TrpArg: 1.401 ± 0.035
0.733TrpSer: 0.733 ± 0.026
0.62TrpThr: 0.62 ± 0.021
0.959TrpVal: 0.959 ± 0.023
0.253TrpTrp: 0.253 ± 0.015
0.324TrpTyr: 0.324 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.722TyrAla: 2.722 ± 0.044
0.239TyrCys: 0.239 ± 0.013
1.334TyrAsp: 1.334 ± 0.036
1.13TyrGlu: 1.13 ± 0.032
0.866TyrPhe: 0.866 ± 0.025
1.948TyrGly: 1.948 ± 0.042
0.502TyrHis: 0.502 ± 0.021
0.747TyrIle: 0.747 ± 0.024
0.573TyrLys: 0.573 ± 0.023
2.631TyrLeu: 2.631 ± 0.045
0.392TyrMet: 0.392 ± 0.018
0.582TyrAsn: 0.582 ± 0.022
1.173TyrPro: 1.173 ± 0.035
0.871TyrGln: 0.871 ± 0.025
2.048TyrArg: 2.048 ± 0.047
1.145TyrSer: 1.145 ± 0.029
1.259TyrThr: 1.259 ± 0.033
1.605TyrVal: 1.605 ± 0.039
0.392TyrTrp: 0.392 ± 0.019
0.638TyrTyr: 0.638 ± 0.024
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 4235 proteins (1419603 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