Amino acid dipepetide frequency for Clostridium sp. KLE 1755

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
8.84AlaAla: 8.84 ± 0.099
1.401AlaCys: 1.401 ± 0.028
4.5AlaAsp: 4.5 ± 0.045
5.64AlaGlu: 5.64 ± 0.052
3.417AlaPhe: 3.417 ± 0.044
7.309AlaGly: 7.309 ± 0.069
1.099AlaHis: 1.099 ± 0.022
4.045AlaIle: 4.045 ± 0.046
3.506AlaLys: 3.506 ± 0.042
7.237AlaLeu: 7.237 ± 0.057
2.236AlaMet: 2.236 ± 0.03
2.16AlaAsn: 2.16 ± 0.032
2.428AlaPro: 2.428 ± 0.04
2.683AlaGln: 2.683 ± 0.034
3.42AlaArg: 3.42 ± 0.043
4.034AlaSer: 4.034 ± 0.047
2.447AlaThr: 2.447 ± 0.038
6.75AlaVal: 6.75 ± 0.065
0.842AlaTrp: 0.842 ± 0.021
2.809AlaTyr: 2.809 ± 0.039
0.0AlaXaa: 0.0 ± 0.0
Cys
1.209CysAla: 1.209 ± 0.027
0.383CysCys: 0.383 ± 0.013
0.827CysAsp: 0.827 ± 0.021
0.954CysGlu: 0.954 ± 0.021
0.855CysPhe: 0.855 ± 0.019
1.723CysGly: 1.723 ± 0.038
0.35CysHis: 0.35 ± 0.013
1.264CysIle: 1.264 ± 0.028
0.678CysLys: 0.678 ± 0.02
1.481CysLeu: 1.481 ± 0.028
0.541CysMet: 0.541 ± 0.017
0.556CysAsn: 0.556 ± 0.018
0.724CysPro: 0.724 ± 0.02
0.45CysGln: 0.45 ± 0.016
1.157CysArg: 1.157 ± 0.026
1.036CysSer: 1.036 ± 0.025
0.77CysThr: 0.77 ± 0.018
1.064CysVal: 1.064 ± 0.025
0.185CysTrp: 0.185 ± 0.009
0.695CysTyr: 0.695 ± 0.021
0.0CysXaa: 0.0 ± 0.0
Asp
3.829AspAla: 3.829 ± 0.049
0.932AspCys: 0.932 ± 0.024
2.31AspAsp: 2.31 ± 0.041
3.851AspGlu: 3.851 ± 0.048
2.797AspPhe: 2.797 ± 0.034
4.768AspGly: 4.768 ± 0.056
0.68AspHis: 0.68 ± 0.023
4.131AspIle: 4.131 ± 0.05
3.055AspLys: 3.055 ± 0.039
3.941AspLeu: 3.941 ± 0.046
1.849AspMet: 1.849 ± 0.029
2.185AspAsn: 2.185 ± 0.034
1.748AspPro: 1.748 ± 0.034
1.015AspGln: 1.015 ± 0.023
2.673AspArg: 2.673 ± 0.037
3.083AspSer: 3.083 ± 0.046
2.911AspThr: 2.911 ± 0.037
3.076AspVal: 3.076 ± 0.042
0.815AspTrp: 0.815 ± 0.02
2.776AspTyr: 2.776 ± 0.039
0.0AspXaa: 0.0 ± 0.0
Glu
6.081GluAla: 6.081 ± 0.072
0.877GluCys: 0.877 ± 0.02
4.099GluAsp: 4.099 ± 0.049
7.79GluGlu: 7.79 ± 0.081
2.551GluPhe: 2.551 ± 0.042
5.119GluGly: 5.119 ± 0.061
1.209GluHis: 1.209 ± 0.026
4.958GluIle: 4.958 ± 0.065
6.661GluLys: 6.661 ± 0.059
6.53GluLeu: 6.53 ± 0.069
2.356GluMet: 2.356 ± 0.036
4.176GluAsn: 4.176 ± 0.053
2.089GluPro: 2.089 ± 0.038
2.768GluGln: 2.768 ± 0.041
3.654GluArg: 3.654 ± 0.047
3.385GluSer: 3.385 ± 0.038
3.685GluThr: 3.685 ± 0.048
3.849GluVal: 3.849 ± 0.042
0.852GluTrp: 0.852 ± 0.021
3.135GluTyr: 3.135 ± 0.04
0.0GluXaa: 0.0 ± 0.0
Phe
3.086PheAla: 3.086 ± 0.04
0.972PheCys: 0.972 ± 0.022
2.349PheAsp: 2.349 ± 0.036
2.49PheGlu: 2.49 ± 0.039
2.446PhePhe: 2.446 ± 0.035
3.132PheGly: 3.132 ± 0.038
0.997PheHis: 0.997 ± 0.024
2.956PheIle: 2.956 ± 0.044
1.776PheLys: 1.776 ± 0.033
4.987PheLeu: 4.987 ± 0.059
1.318PheMet: 1.318 ± 0.027
1.573PheAsn: 1.573 ± 0.032
1.813PhePro: 1.813 ± 0.035
1.508PheGln: 1.508 ± 0.027
2.351PheArg: 2.351 ± 0.035
3.373PheSer: 3.373 ± 0.043
2.639PheThr: 2.639 ± 0.035
2.655PheVal: 2.655 ± 0.039
0.608PheTrp: 0.608 ± 0.018
2.172PheTyr: 2.172 ± 0.035
0.0PheXaa: 0.0 ± 0.0
Gly
5.003GlyAla: 5.003 ± 0.058
1.538GlyCys: 1.538 ± 0.031
3.414GlyAsp: 3.414 ± 0.044
5.236GlyGlu: 5.236 ± 0.056
3.393GlyPhe: 3.393 ± 0.044
5.434GlyGly: 5.434 ± 0.077
1.203GlyHis: 1.203 ± 0.027
6.143GlyIle: 6.143 ± 0.064
5.443GlyLys: 5.443 ± 0.054
6.463GlyLeu: 6.463 ± 0.059
2.713GlyMet: 2.713 ± 0.04
3.212GlyAsn: 3.212 ± 0.044
1.514GlyPro: 1.514 ± 0.026
2.263GlyGln: 2.263 ± 0.036
4.083GlyArg: 4.083 ± 0.051
4.4GlySer: 4.4 ± 0.048
4.022GlyThr: 4.022 ± 0.049
4.515GlyVal: 4.515 ± 0.058
0.931GlyTrp: 0.931 ± 0.024
3.403GlyTyr: 3.403 ± 0.044
0.0GlyXaa: 0.0 ± 0.0
His
1.056HisAla: 1.056 ± 0.021
0.299HisCys: 0.299 ± 0.012
0.851HisAsp: 0.851 ± 0.022
1.058HisGlu: 1.058 ± 0.024
1.03HisPhe: 1.03 ± 0.023
1.305HisGly: 1.305 ± 0.026
0.398HisHis: 0.398 ± 0.017
1.377HisIle: 1.377 ± 0.025
0.833HisLys: 0.833 ± 0.021
1.498HisLeu: 1.498 ± 0.03
0.577HisMet: 0.577 ± 0.017
0.738HisAsn: 0.738 ± 0.018
0.913HisPro: 0.913 ± 0.024
0.502HisGln: 0.502 ± 0.018
0.816HisArg: 0.816 ± 0.021
0.976HisSer: 0.976 ± 0.025
0.929HisThr: 0.929 ± 0.025
1.02HisVal: 1.02 ± 0.02
0.247HisTrp: 0.247 ± 0.012
0.817HisTyr: 0.817 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
4.98IleAla: 4.98 ± 0.052
1.373IleCys: 1.373 ± 0.024
3.328IleAsp: 3.328 ± 0.046
3.791IleGlu: 3.791 ± 0.043
3.193IlePhe: 3.193 ± 0.042
4.448IleGly: 4.448 ± 0.046
1.316IleHis: 1.316 ± 0.025
4.753IleIle: 4.753 ± 0.064
3.253IleLys: 3.253 ± 0.044
7.128IleLeu: 7.128 ± 0.062
1.95IleMet: 1.95 ± 0.036
2.686IleAsn: 2.686 ± 0.038
3.255IlePro: 3.255 ± 0.04
2.108IleGln: 2.108 ± 0.036
4.037IleArg: 4.037 ± 0.043
4.656IleSer: 4.656 ± 0.052
3.899IleThr: 3.899 ± 0.045
4.068IleVal: 4.068 ± 0.049
0.806IleTrp: 0.806 ± 0.023
2.889IleTyr: 2.889 ± 0.043
0.0IleXaa: 0.0 ± 0.0
Lys
4.613LysAla: 4.613 ± 0.052
0.666LysCys: 0.666 ± 0.021
3.181LysAsp: 3.181 ± 0.041
5.952LysGlu: 5.952 ± 0.064
1.627LysPhe: 1.627 ± 0.031
4.019LysGly: 4.019 ± 0.05
0.884LysHis: 0.884 ± 0.02
4.054LysIle: 4.054 ± 0.048
5.402LysLys: 5.402 ± 0.062
4.801LysLeu: 4.801 ± 0.055
1.952LysMet: 1.952 ± 0.033
3.196LysAsn: 3.196 ± 0.036
1.914LysPro: 1.914 ± 0.034
2.149LysGln: 2.149 ± 0.031
2.889LysArg: 2.889 ± 0.04
2.889LysSer: 2.889 ± 0.043
3.197LysThr: 3.197 ± 0.044
3.289LysVal: 3.289 ± 0.042
0.685LysTrp: 0.685 ± 0.018
2.637LysTyr: 2.637 ± 0.038
0.0LysXaa: 0.0 ± 0.0
Leu
7.043LeuAla: 7.043 ± 0.072
1.793LeuCys: 1.793 ± 0.028
4.78LeuAsp: 4.78 ± 0.052
6.681LeuGlu: 6.681 ± 0.071
4.656LeuPhe: 4.656 ± 0.06
5.824LeuGly: 5.824 ± 0.056
1.78LeuHis: 1.78 ± 0.029
5.862LeuIle: 5.862 ± 0.063
5.652LeuLys: 5.652 ± 0.055
10.205LeuLeu: 10.205 ± 0.114
2.748LeuMet: 2.748 ± 0.039
3.647LeuAsn: 3.647 ± 0.047
4.282LeuPro: 4.282 ± 0.047
3.279LeuGln: 3.279 ± 0.041
4.294LeuArg: 4.294 ± 0.043
6.503LeuSer: 6.503 ± 0.055
5.153LeuThr: 5.153 ± 0.056
5.268LeuVal: 5.268 ± 0.058
1.083LeuTrp: 1.083 ± 0.023
3.907LeuTyr: 3.907 ± 0.041
0.0LeuXaa: 0.0 ± 0.0
Met
2.433MetAla: 2.433 ± 0.039
0.391MetCys: 0.391 ± 0.012
1.899MetAsp: 1.899 ± 0.029
2.856MetGlu: 2.856 ± 0.037
1.004MetPhe: 1.004 ± 0.025
2.137MetGly: 2.137 ± 0.035
0.509MetHis: 0.509 ± 0.016
1.887MetIle: 1.887 ± 0.035
2.491MetLys: 2.491 ± 0.033
2.968MetLeu: 2.968 ± 0.04
0.881MetMet: 0.881 ± 0.02
1.434MetAsn: 1.434 ± 0.028
1.33MetPro: 1.33 ± 0.028
1.139MetGln: 1.139 ± 0.026
1.418MetArg: 1.418 ± 0.025
1.633MetSer: 1.633 ± 0.034
1.622MetThr: 1.622 ± 0.027
1.806MetVal: 1.806 ± 0.033
0.276MetTrp: 0.276 ± 0.013
0.966MetTyr: 0.966 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.023AsnAla: 3.023 ± 0.04
0.697AsnCys: 0.697 ± 0.021
1.88AsnAsp: 1.88 ± 0.03
2.645AsnGlu: 2.645 ± 0.041
1.665AsnPhe: 1.665 ± 0.031
3.514AsnGly: 3.514 ± 0.045
0.741AsnHis: 0.741 ± 0.02
2.983AsnIle: 2.983 ± 0.046
2.14AsnLys: 2.14 ± 0.037
3.441AsnLeu: 3.441 ± 0.039
1.356AsnMet: 1.356 ± 0.025
1.658AsnAsn: 1.658 ± 0.031
1.967AsnPro: 1.967 ± 0.034
1.37AsnGln: 1.37 ± 0.023
2.2AsnArg: 2.2 ± 0.03
2.409AsnSer: 2.409 ± 0.033
2.283AsnThr: 2.283 ± 0.037
2.401AsnVal: 2.401 ± 0.037
0.512AsnTrp: 0.512 ± 0.016
1.887AsnTyr: 1.887 ± 0.031
0.0AsnXaa: 0.0 ± 0.0
Pro
3.28ProAla: 3.28 ± 0.049
0.565ProCys: 0.565 ± 0.02
2.599ProAsp: 2.599 ± 0.04
3.92ProGlu: 3.92 ± 0.049
1.914ProPhe: 1.914 ± 0.031
2.978ProGly: 2.978 ± 0.039
0.687ProHis: 0.687 ± 0.02
1.827ProIle: 1.827 ± 0.031
1.421ProLys: 1.421 ± 0.03
3.215ProLeu: 3.215 ± 0.043
1.008ProMet: 1.008 ± 0.023
1.117ProAsn: 1.117 ± 0.026
1.008ProPro: 1.008 ± 0.023
1.18ProGln: 1.18 ± 0.027
1.262ProArg: 1.262 ± 0.025
1.963ProSer: 1.963 ± 0.035
1.396ProThr: 1.396 ± 0.033
3.448ProVal: 3.448 ± 0.04
0.477ProTrp: 0.477 ± 0.016
1.59ProTyr: 1.59 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
2.743GlnAla: 2.743 ± 0.042
0.37GlnCys: 0.37 ± 0.015
1.619GlnAsp: 1.619 ± 0.028
3.111GlnGlu: 3.111 ± 0.046
1.204GlnPhe: 1.204 ± 0.021
2.125GlnGly: 2.125 ± 0.031
0.464GlnHis: 0.464 ± 0.015
2.356GlnIle: 2.356 ± 0.034
2.446GlnLys: 2.446 ± 0.035
3.133GlnLeu: 3.133 ± 0.045
1.12GlnMet: 1.12 ± 0.024
1.5GlnAsn: 1.5 ± 0.031
1.153GlnPro: 1.153 ± 0.025
1.223GlnGln: 1.223 ± 0.027
1.461GlnArg: 1.461 ± 0.03
1.644GlnSer: 1.644 ± 0.029
1.713GlnThr: 1.713 ± 0.028
2.024GlnVal: 2.024 ± 0.027
0.365GlnTrp: 0.365 ± 0.013
1.367GlnTyr: 1.367 ± 0.026
0.0GlnXaa: 0.0 ± 0.0
Arg
3.03ArgAla: 3.03 ± 0.044
0.703ArgCys: 0.703 ± 0.02
2.475ArgAsp: 2.475 ± 0.038
4.436ArgGlu: 4.436 ± 0.051
2.284ArgPhe: 2.284 ± 0.035
2.774ArgGly: 2.774 ± 0.044
0.882ArgHis: 0.882 ± 0.023
3.956ArgIle: 3.956 ± 0.05
3.791ArgLys: 3.791 ± 0.043
5.052ArgLeu: 5.052 ± 0.057
1.74ArgMet: 1.74 ± 0.032
2.155ArgAsn: 2.155 ± 0.029
1.738ArgPro: 1.738 ± 0.028
2.077ArgGln: 2.077 ± 0.033
3.037ArgArg: 3.037 ± 0.046
2.42ArgSer: 2.42 ± 0.041
2.416ArgThr: 2.416 ± 0.036
2.785ArgVal: 2.785 ± 0.039
0.504ArgTrp: 0.504 ± 0.018
2.112ArgTyr: 2.112 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
4.456SerAla: 4.456 ± 0.045
1.094SerCys: 1.094 ± 0.024
3.019SerAsp: 3.019 ± 0.042
3.613SerGlu: 3.613 ± 0.046
3.072SerPhe: 3.072 ± 0.043
5.205SerGly: 5.205 ± 0.055
1.079SerHis: 1.079 ± 0.025
3.873SerIle: 3.873 ± 0.047
2.473SerLys: 2.473 ± 0.038
5.673SerLeu: 5.673 ± 0.064
1.763SerMet: 1.763 ± 0.036
1.938SerAsn: 1.938 ± 0.036
2.034SerPro: 2.034 ± 0.032
1.826SerGln: 1.826 ± 0.031
3.285SerArg: 3.285 ± 0.042
3.559SerSer: 3.559 ± 0.046
2.49SerThr: 2.49 ± 0.036
4.168SerVal: 4.168 ± 0.048
0.758SerTrp: 0.758 ± 0.02
2.595SerTyr: 2.595 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
4.788ThrAla: 4.788 ± 0.053
0.702ThrCys: 0.702 ± 0.019
3.011ThrAsp: 3.011 ± 0.039
3.696ThrGlu: 3.696 ± 0.053
2.119ThrPhe: 2.119 ± 0.031
4.696ThrGly: 4.696 ± 0.053
0.748ThrHis: 0.748 ± 0.021
3.404ThrIle: 3.404 ± 0.043
2.229ThrLys: 2.229 ± 0.031
4.709ThrLeu: 4.709 ± 0.055
1.384ThrMet: 1.384 ± 0.028
1.642ThrAsn: 1.642 ± 0.029
2.134ThrPro: 2.134 ± 0.033
1.634ThrGln: 1.634 ± 0.031
2.025ThrArg: 2.025 ± 0.029
2.518ThrSer: 2.518 ± 0.038
2.258ThrThr: 2.258 ± 0.038
4.135ThrVal: 4.135 ± 0.053
0.534ThrTrp: 0.534 ± 0.015
1.961ThrTyr: 1.961 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
3.846ValAla: 3.846 ± 0.05
1.205ValCys: 1.205 ± 0.026
3.18ValAsp: 3.18 ± 0.042
4.121ValGlu: 4.121 ± 0.048
3.21ValPhe: 3.21 ± 0.047
3.718ValGly: 3.718 ± 0.05
1.042ValHis: 1.042 ± 0.023
4.601ValIle: 4.601 ± 0.051
3.951ValLys: 3.951 ± 0.047
6.528ValLeu: 6.528 ± 0.06
1.968ValMet: 1.968 ± 0.033
2.687ValAsn: 2.687 ± 0.037
2.665ValPro: 2.665 ± 0.037
1.862ValGln: 1.862 ± 0.034
3.226ValArg: 3.226 ± 0.039
4.394ValSer: 4.394 ± 0.053
3.762ValThr: 3.762 ± 0.054
3.968ValVal: 3.968 ± 0.054
0.816ValTrp: 0.816 ± 0.019
2.696ValTyr: 2.696 ± 0.043
0.0ValXaa: 0.0 ± 0.0
Trp
0.688TrpAla: 0.688 ± 0.017
0.215TrpCys: 0.215 ± 0.009
0.703TrpAsp: 0.703 ± 0.019
0.988TrpGlu: 0.988 ± 0.024
0.551TrpPhe: 0.551 ± 0.018
0.85TrpGly: 0.85 ± 0.019
0.249TrpHis: 0.249 ± 0.01
0.736TrpIle: 0.736 ± 0.017
0.897TrpLys: 0.897 ± 0.022
1.152TrpLeu: 1.152 ± 0.025
0.393TrpMet: 0.393 ± 0.014
0.724TrpAsn: 0.724 ± 0.021
0.36TrpPro: 0.36 ± 0.015
0.507TrpGln: 0.507 ± 0.016
0.513TrpArg: 0.513 ± 0.015
0.618TrpSer: 0.618 ± 0.018
0.532TrpThr: 0.532 ± 0.018
0.574TrpVal: 0.574 ± 0.016
0.175TrpTrp: 0.175 ± 0.01
0.55TrpTyr: 0.55 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.774TyrAla: 2.774 ± 0.034
0.73TyrCys: 0.73 ± 0.018
2.404TyrAsp: 2.404 ± 0.04
2.993TyrGlu: 2.993 ± 0.044
2.213TyrPhe: 2.213 ± 0.034
3.246TyrGly: 3.246 ± 0.044
0.924TyrHis: 0.924 ± 0.022
2.751TyrIle: 2.751 ± 0.036
1.895TyrLys: 1.895 ± 0.032
4.298TyrLeu: 4.298 ± 0.045
1.228TyrMet: 1.228 ± 0.028
1.789TyrAsn: 1.789 ± 0.033
1.787TyrPro: 1.787 ± 0.03
1.596TyrGln: 1.596 ± 0.033
2.565TyrArg: 2.565 ± 0.04
2.481TyrSer: 2.481 ± 0.035
2.203TyrThr: 2.203 ± 0.033
2.581TyrVal: 2.581 ± 0.034
0.505TyrTrp: 0.505 ± 0.016
2.023TyrTyr: 2.023 ± 0.029
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 6954 proteins (2014820 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