Amino acid dipepetide frequency for Streptomyces sp. CC53

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
24.387AlaAla: 24.387 ± 0.219
1.151AlaCys: 1.151 ± 0.026
8.711AlaAsp: 8.711 ± 0.083
9.095AlaGlu: 9.095 ± 0.096
3.519AlaPhe: 3.519 ± 0.057
13.667AlaGly: 13.667 ± 0.112
3.144AlaHis: 3.144 ± 0.046
2.965AlaIle: 2.965 ± 0.05
2.712AlaLys: 2.712 ± 0.059
15.156AlaLeu: 15.156 ± 0.134
2.445AlaMet: 2.445 ± 0.039
1.726AlaAsn: 1.726 ± 0.033
8.188AlaPro: 8.188 ± 0.092
3.85AlaGln: 3.85 ± 0.048
11.357AlaArg: 11.357 ± 0.102
5.727AlaSer: 5.727 ± 0.06
6.861AlaThr: 6.861 ± 0.073
13.126AlaVal: 13.126 ± 0.111
1.987AlaTrp: 1.987 ± 0.037
3.055AlaTyr: 3.055 ± 0.041
0.0AlaXaa: 0.0 ± 0.0
Cys
1.168CysAla: 1.168 ± 0.03
0.102CysCys: 0.102 ± 0.009
0.48CysAsp: 0.48 ± 0.017
0.419CysGlu: 0.419 ± 0.014
0.221CysPhe: 0.221 ± 0.013
1.064CysGly: 1.064 ± 0.027
0.21CysHis: 0.21 ± 0.012
0.167CysIle: 0.167 ± 0.009
0.114CysLys: 0.114 ± 0.009
0.772CysLeu: 0.772 ± 0.021
0.122CysMet: 0.122 ± 0.009
0.137CysAsn: 0.137 ± 0.009
0.582CysPro: 0.582 ± 0.021
0.155CysGln: 0.155 ± 0.009
0.667CysArg: 0.667 ± 0.021
0.419CysSer: 0.419 ± 0.017
0.56CysThr: 0.56 ± 0.017
0.694CysVal: 0.694 ± 0.021
0.138CysTrp: 0.138 ± 0.009
0.136CysTyr: 0.136 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
8.358AspAla: 8.358 ± 0.077
0.466AspCys: 0.466 ± 0.017
3.628AspAsp: 3.628 ± 0.048
3.9AspGlu: 3.9 ± 0.049
1.562AspPhe: 1.562 ± 0.032
6.691AspGly: 6.691 ± 0.068
1.437AspHis: 1.437 ± 0.03
1.706AspIle: 1.706 ± 0.036
1.103AspLys: 1.103 ± 0.033
6.182AspLeu: 6.182 ± 0.064
0.85AspMet: 0.85 ± 0.025
0.824AspAsn: 0.824 ± 0.022
4.725AspPro: 4.725 ± 0.058
1.432AspGln: 1.432 ± 0.031
5.195AspArg: 5.195 ± 0.056
2.193AspSer: 2.193 ± 0.036
3.34AspThr: 3.34 ± 0.044
4.823AspVal: 4.823 ± 0.06
1.003AspTrp: 1.003 ± 0.028
1.073AspTyr: 1.073 ± 0.027
0.0AspXaa: 0.0 ± 0.0
Glu
8.003GluAla: 8.003 ± 0.087
0.395GluCys: 0.395 ± 0.016
3.072GluAsp: 3.072 ± 0.048
3.779GluGlu: 3.779 ± 0.061
1.337GluPhe: 1.337 ± 0.029
4.555GluGly: 4.555 ± 0.054
1.502GluHis: 1.502 ± 0.031
2.014GluIle: 2.014 ± 0.043
1.428GluLys: 1.428 ± 0.037
6.5GluLeu: 6.5 ± 0.075
0.88GluMet: 0.88 ± 0.023
0.937GluAsn: 0.937 ± 0.026
3.6GluPro: 3.6 ± 0.053
2.281GluGln: 2.281 ± 0.046
5.676GluArg: 5.676 ± 0.069
2.214GluSer: 2.214 ± 0.042
2.874GluThr: 2.874 ± 0.042
4.494GluVal: 4.494 ± 0.058
0.81GluTrp: 0.81 ± 0.02
1.035GluTyr: 1.035 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
3.593PheAla: 3.593 ± 0.05
0.249PheCys: 0.249 ± 0.011
1.828PheAsp: 1.828 ± 0.034
1.311PheGlu: 1.311 ± 0.026
0.848PhePhe: 0.848 ± 0.023
2.872PheGly: 2.872 ± 0.046
0.617PheHis: 0.617 ± 0.02
0.604PheIle: 0.604 ± 0.022
0.466PheLys: 0.466 ± 0.019
2.488PheLeu: 2.488 ± 0.04
0.364PheMet: 0.364 ± 0.015
0.497PheAsn: 0.497 ± 0.019
1.375PhePro: 1.375 ± 0.029
0.636PheGln: 0.636 ± 0.016
1.819PheArg: 1.819 ± 0.035
1.282PheSer: 1.282 ± 0.029
1.912PheThr: 1.912 ± 0.033
2.084PheVal: 2.084 ± 0.032
0.399PheTrp: 0.399 ± 0.014
0.498PheTyr: 0.498 ± 0.016
0.0PheXaa: 0.0 ± 0.0
Gly
11.814GlyAla: 11.814 ± 0.105
0.938GlyCys: 0.938 ± 0.028
5.426GlyAsp: 5.426 ± 0.061
5.112GlyGlu: 5.112 ± 0.055
2.726GlyPhe: 2.726 ± 0.045
9.483GlyGly: 9.483 ± 0.091
2.305GlyHis: 2.305 ± 0.039
3.022GlyIle: 3.022 ± 0.047
2.267GlyLys: 2.267 ± 0.047
9.577GlyLeu: 9.577 ± 0.099
1.934GlyMet: 1.934 ± 0.028
1.587GlyAsn: 1.587 ± 0.035
5.693GlyPro: 5.693 ± 0.071
2.535GlyGln: 2.535 ± 0.042
8.501GlyArg: 8.501 ± 0.084
5.044GlySer: 5.044 ± 0.059
6.441GlyThr: 6.441 ± 0.063
7.545GlyVal: 7.545 ± 0.08
1.689GlyTrp: 1.689 ± 0.034
2.191GlyTyr: 2.191 ± 0.043
0.0GlyXaa: 0.0 ± 0.0
His
2.926HisAla: 2.926 ± 0.044
0.221HisCys: 0.221 ± 0.011
1.387HisAsp: 1.387 ± 0.033
1.219HisGlu: 1.219 ± 0.029
0.595HisPhe: 0.595 ± 0.019
2.597HisGly: 2.597 ± 0.042
0.732HisHis: 0.732 ± 0.017
0.614HisIle: 0.614 ± 0.018
0.344HisLys: 0.344 ± 0.015
2.534HisLeu: 2.534 ± 0.041
0.364HisMet: 0.364 ± 0.015
0.339HisAsn: 0.339 ± 0.014
1.925HisPro: 1.925 ± 0.041
0.637HisGln: 0.637 ± 0.021
2.306HisArg: 2.306 ± 0.039
0.891HisSer: 0.891 ± 0.02
1.379HisThr: 1.379 ± 0.029
1.837HisVal: 1.837 ± 0.035
0.373HisTrp: 0.373 ± 0.016
0.472HisTyr: 0.472 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
4.189IleAla: 4.189 ± 0.059
0.25IleCys: 0.25 ± 0.012
1.94IleAsp: 1.94 ± 0.038
1.816IleGlu: 1.816 ± 0.041
0.567IlePhe: 0.567 ± 0.021
3.064IleGly: 3.064 ± 0.042
0.575IleHis: 0.575 ± 0.017
0.765IleIle: 0.765 ± 0.024
0.686IleLys: 0.686 ± 0.023
2.118IleLeu: 2.118 ± 0.039
0.42IleMet: 0.42 ± 0.017
0.567IleAsn: 0.567 ± 0.019
1.546IlePro: 1.546 ± 0.033
0.649IleGln: 0.649 ± 0.018
2.158IleArg: 2.158 ± 0.042
1.331IleSer: 1.331 ± 0.026
1.969IleThr: 1.969 ± 0.038
2.454IleVal: 2.454 ± 0.047
0.291IleTrp: 0.291 ± 0.014
0.447IleTyr: 0.447 ± 0.015
0.0IleXaa: 0.0 ± 0.0
Lys
2.923LysAla: 2.923 ± 0.061
0.11LysCys: 0.11 ± 0.009
1.326LysAsp: 1.326 ± 0.035
1.16LysGlu: 1.16 ± 0.031
0.398LysPhe: 0.398 ± 0.015
1.799LysGly: 1.799 ± 0.037
0.442LysHis: 0.442 ± 0.017
0.773LysIle: 0.773 ± 0.021
0.777LysLys: 0.777 ± 0.027
1.91LysLeu: 1.91 ± 0.038
0.341LysMet: 0.341 ± 0.014
0.499LysAsn: 0.499 ± 0.02
1.302LysPro: 1.302 ± 0.029
0.654LysGln: 0.654 ± 0.02
1.433LysArg: 1.433 ± 0.033
0.959LysSer: 0.959 ± 0.023
1.157LysThr: 1.157 ± 0.031
1.779LysVal: 1.779 ± 0.038
0.224LysTrp: 0.224 ± 0.011
0.396LysTyr: 0.396 ± 0.017
0.0LysXaa: 0.0 ± 0.0
Leu
15.555LeuAla: 15.555 ± 0.134
0.852LeuCys: 0.852 ± 0.024
6.685LeuAsp: 6.685 ± 0.078
4.777LeuGlu: 4.777 ± 0.063
2.416LeuPhe: 2.416 ± 0.046
9.1LeuGly: 9.1 ± 0.076
2.404LeuHis: 2.404 ± 0.041
2.708LeuIle: 2.708 ± 0.046
1.952LeuLys: 1.952 ± 0.041
11.423LeuLeu: 11.423 ± 0.119
1.607LeuMet: 1.607 ± 0.028
1.529LeuAsn: 1.529 ± 0.029
6.622LeuPro: 6.622 ± 0.07
2.123LeuGln: 2.123 ± 0.034
9.079LeuArg: 9.079 ± 0.084
4.862LeuSer: 4.862 ± 0.058
6.582LeuThr: 6.582 ± 0.064
8.956LeuVal: 8.956 ± 0.082
1.272LeuTrp: 1.272 ± 0.026
1.894LeuTyr: 1.894 ± 0.04
0.0LeuXaa: 0.0 ± 0.0
Met
2.192MetAla: 2.192 ± 0.036
0.139MetCys: 0.139 ± 0.01
0.919MetAsp: 0.919 ± 0.025
0.781MetGlu: 0.781 ± 0.022
0.42MetPhe: 0.42 ± 0.016
1.254MetGly: 1.254 ± 0.026
0.365MetHis: 0.365 ± 0.015
0.571MetIle: 0.571 ± 0.021
0.418MetLys: 0.418 ± 0.017
1.6MetLeu: 1.6 ± 0.035
0.27MetMet: 0.27 ± 0.014
0.413MetAsn: 0.413 ± 0.016
1.116MetPro: 1.116 ± 0.029
0.44MetGln: 0.44 ± 0.018
1.48MetArg: 1.48 ± 0.028
1.247MetSer: 1.247 ± 0.025
1.532MetThr: 1.532 ± 0.026
1.21MetVal: 1.21 ± 0.025
0.216MetTrp: 0.216 ± 0.011
0.316MetTyr: 0.316 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.007AsnAla: 2.007 ± 0.04
0.154AsnCys: 0.154 ± 0.011
0.855AsnAsp: 0.855 ± 0.024
0.749AsnGlu: 0.749 ± 0.022
0.388AsnPhe: 0.388 ± 0.017
1.66AsnGly: 1.66 ± 0.039
0.351AsnHis: 0.351 ± 0.014
0.53AsnIle: 0.53 ± 0.016
0.373AsnLys: 0.373 ± 0.018
1.476AsnLeu: 1.476 ± 0.028
0.281AsnMet: 0.281 ± 0.014
0.358AsnAsn: 0.358 ± 0.017
1.291AsnPro: 1.291 ± 0.03
0.452AsnGln: 0.452 ± 0.016
1.201AsnArg: 1.201 ± 0.025
0.712AsnSer: 0.712 ± 0.021
0.972AsnThr: 0.972 ± 0.024
1.297AsnVal: 1.297 ± 0.03
0.24AsnTrp: 0.24 ± 0.011
0.319AsnTyr: 0.319 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
9.566ProAla: 9.566 ± 0.111
0.416ProCys: 0.416 ± 0.017
4.729ProAsp: 4.729 ± 0.051
4.503ProGlu: 4.503 ± 0.054
1.475ProPhe: 1.475 ± 0.029
7.297ProGly: 7.297 ± 0.082
1.557ProHis: 1.557 ± 0.029
1.086ProIle: 1.086 ± 0.026
1.106ProLys: 1.106 ± 0.027
5.471ProLeu: 5.471 ± 0.058
0.98ProMet: 0.98 ± 0.023
0.8ProAsn: 0.8 ± 0.02
4.133ProPro: 4.133 ± 0.074
1.911ProGln: 1.911 ± 0.04
4.344ProArg: 4.344 ± 0.05
3.204ProSer: 3.204 ± 0.057
3.0ProThr: 3.0 ± 0.049
5.813ProVal: 5.813 ± 0.058
0.955ProTrp: 0.955 ± 0.024
1.541ProTyr: 1.541 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
3.854GlnAla: 3.854 ± 0.049
0.174GlnCys: 0.174 ± 0.011
1.448GlnAsp: 1.448 ± 0.032
1.557GlnGlu: 1.557 ± 0.033
0.603GlnPhe: 0.603 ± 0.02
2.253GlnGly: 2.253 ± 0.038
0.688GlnHis: 0.688 ± 0.02
0.97GlnIle: 0.97 ± 0.028
0.587GlnLys: 0.587 ± 0.02
2.789GlnLeu: 2.789 ± 0.045
0.474GlnMet: 0.474 ± 0.017
0.416GlnAsn: 0.416 ± 0.015
1.747GlnPro: 1.747 ± 0.039
1.203GlnGln: 1.203 ± 0.035
2.455GlnArg: 2.455 ± 0.041
1.131GlnSer: 1.131 ± 0.024
1.278GlnThr: 1.278 ± 0.026
2.295GlnVal: 2.295 ± 0.035
0.424GlnTrp: 0.424 ± 0.018
0.622GlnTyr: 0.622 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
10.821ArgAla: 10.821 ± 0.115
0.674ArgCys: 0.674 ± 0.022
4.67ArgAsp: 4.67 ± 0.056
4.864ArgGlu: 4.864 ± 0.055
2.371ArgPhe: 2.371 ± 0.038
6.328ArgGly: 6.328 ± 0.062
2.274ArgHis: 2.274 ± 0.04
3.122ArgIle: 3.122 ± 0.044
1.656ArgLys: 1.656 ± 0.037
9.226ArgLeu: 9.226 ± 0.094
1.81ArgMet: 1.81 ± 0.031
1.273ArgAsn: 1.273 ± 0.026
5.403ArgPro: 5.403 ± 0.064
2.375ArgGln: 2.375 ± 0.038
8.415ArgArg: 8.415 ± 0.095
4.116ArgSer: 4.116 ± 0.048
5.654ArgThr: 5.654 ± 0.063
6.249ArgVal: 6.249 ± 0.067
1.482ArgTrp: 1.482 ± 0.032
1.926ArgTyr: 1.926 ± 0.033
0.0ArgXaa: 0.0 ± 0.0
Ser
6.382SerAla: 6.382 ± 0.076
0.405SerCys: 0.405 ± 0.015
2.418SerAsp: 2.418 ± 0.033
2.196SerGlu: 2.196 ± 0.035
1.371SerPhe: 1.371 ± 0.032
5.57SerGly: 5.57 ± 0.073
0.979SerHis: 0.979 ± 0.024
1.195SerIle: 1.195 ± 0.032
0.886SerLys: 0.886 ± 0.022
4.44SerLeu: 4.44 ± 0.049
0.932SerMet: 0.932 ± 0.023
0.713SerAsn: 0.713 ± 0.023
3.104SerPro: 3.104 ± 0.044
1.111SerGln: 1.111 ± 0.026
3.644SerArg: 3.644 ± 0.052
2.401SerSer: 2.401 ± 0.048
2.804SerThr: 2.804 ± 0.044
3.92SerVal: 3.92 ± 0.047
0.804SerTrp: 0.804 ± 0.022
1.087SerTyr: 1.087 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
9.322ThrAla: 9.322 ± 0.093
0.454ThrCys: 0.454 ± 0.016
3.45ThrAsp: 3.45 ± 0.05
3.107ThrGlu: 3.107 ± 0.042
1.488ThrPhe: 1.488 ± 0.031
6.8ThrGly: 6.8 ± 0.068
1.179ThrHis: 1.179 ± 0.025
1.553ThrIle: 1.553 ± 0.035
1.046ThrLys: 1.046 ± 0.029
5.455ThrLeu: 5.455 ± 0.056
0.819ThrMet: 0.819 ± 0.023
0.869ThrAsn: 0.869 ± 0.024
4.139ThrPro: 4.139 ± 0.054
1.27ThrGln: 1.27 ± 0.025
4.078ThrArg: 4.078 ± 0.054
2.848ThrSer: 2.848 ± 0.053
3.61ThrThr: 3.61 ± 0.055
5.934ThrVal: 5.934 ± 0.058
0.906ThrTrp: 0.906 ± 0.024
1.318ThrTyr: 1.318 ± 0.028
0.0ThrXaa: 0.0 ± 0.0
Val
11.086ValAla: 11.086 ± 0.102
0.811ValCys: 0.811 ± 0.022
5.159ValAsp: 5.159 ± 0.061
4.887ValGlu: 4.887 ± 0.054
2.341ValPhe: 2.341 ± 0.038
6.372ValGly: 6.372 ± 0.073
2.154ValHis: 2.154 ± 0.035
2.529ValIle: 2.529 ± 0.045
1.703ValLys: 1.703 ± 0.036
9.598ValLeu: 9.598 ± 0.081
1.456ValMet: 1.456 ± 0.029
1.462ValAsn: 1.462 ± 0.032
5.557ValPro: 5.557 ± 0.058
2.091ValGln: 2.091 ± 0.031
7.626ValArg: 7.626 ± 0.073
4.089ValSer: 4.089 ± 0.05
5.517ValThr: 5.517 ± 0.06
8.062ValVal: 8.062 ± 0.082
1.179ValTrp: 1.179 ± 0.027
1.603ValTyr: 1.603 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.747TrpAla: 1.747 ± 0.032
0.172TrpCys: 0.172 ± 0.01
0.86TrpAsp: 0.86 ± 0.023
0.774TrpGlu: 0.774 ± 0.024
0.495TrpPhe: 0.495 ± 0.015
1.023TrpGly: 1.023 ± 0.023
0.372TrpHis: 0.372 ± 0.014
0.488TrpIle: 0.488 ± 0.017
0.353TrpLys: 0.353 ± 0.015
1.736TrpLeu: 1.736 ± 0.037
0.296TrpMet: 0.296 ± 0.013
0.372TrpAsn: 0.372 ± 0.019
0.795TrpPro: 0.795 ± 0.02
0.596TrpGln: 0.596 ± 0.018
1.377TrpArg: 1.377 ± 0.028
0.853TrpSer: 0.853 ± 0.025
1.057TrpThr: 1.057 ± 0.027
0.992TrpVal: 0.992 ± 0.024
0.341TrpTrp: 0.341 ± 0.017
0.349TrpTyr: 0.349 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.936TyrAla: 2.936 ± 0.044
0.192TyrCys: 0.192 ± 0.011
1.5TyrAsp: 1.5 ± 0.03
1.377TyrGlu: 1.377 ± 0.03
0.601TyrPhe: 0.601 ± 0.02
2.382TyrGly: 2.382 ± 0.038
0.403TyrHis: 0.403 ± 0.014
0.422TyrIle: 0.422 ± 0.016
0.388TyrLys: 0.388 ± 0.018
1.946TyrLeu: 1.946 ± 0.038
0.253TyrMet: 0.253 ± 0.012
0.348TyrAsn: 0.348 ± 0.017
1.044TyrPro: 1.044 ± 0.026
0.566TyrGln: 0.566 ± 0.019
1.897TyrArg: 1.897 ± 0.033
0.838TyrSer: 0.838 ± 0.024
1.145TyrThr: 1.145 ± 0.028
1.721TyrVal: 1.721 ± 0.037
0.319TyrTrp: 0.319 ± 0.015
0.402TyrTyr: 0.402 ± 0.016
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 5761 proteins (1757567 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