Amino acid dipepetide frequency for Desulfovibrio sp. 86

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
14.824AlaAla: 14.824 ± 0.21
1.902AlaCys: 1.902 ± 0.05
5.608AlaAsp: 5.608 ± 0.086
6.347AlaGlu: 6.347 ± 0.108
3.8AlaPhe: 3.8 ± 0.069
9.05AlaGly: 9.05 ± 0.114
2.439AlaHis: 2.439 ± 0.057
4.532AlaIle: 4.532 ± 0.082
3.829AlaLys: 3.829 ± 0.079
12.944AlaLeu: 12.944 ± 0.167
3.211AlaMet: 3.211 ± 0.064
2.725AlaAsn: 2.725 ± 0.063
5.499AlaPro: 5.499 ± 0.119
4.584AlaGln: 4.584 ± 0.081
7.52AlaArg: 7.52 ± 0.118
6.396AlaSer: 6.396 ± 0.101
4.932AlaThr: 4.932 ± 0.096
7.991AlaVal: 7.991 ± 0.107
1.374AlaTrp: 1.374 ± 0.039
2.362AlaTyr: 2.362 ± 0.054
0.0AlaXaa: 0.0 ± 0.0
Cys
1.748CysAla: 1.748 ± 0.041
0.399CysCys: 0.399 ± 0.023
0.68CysAsp: 0.68 ± 0.029
0.681CysGlu: 0.681 ± 0.027
0.586CysPhe: 0.586 ± 0.027
1.689CysGly: 1.689 ± 0.051
0.448CysHis: 0.448 ± 0.03
0.837CysIle: 0.837 ± 0.031
0.547CysLys: 0.547 ± 0.026
1.715CysLeu: 1.715 ± 0.045
0.433CysMet: 0.433 ± 0.021
0.517CysAsn: 0.517 ± 0.021
0.998CysPro: 0.998 ± 0.041
0.455CysGln: 0.455 ± 0.021
1.123CysArg: 1.123 ± 0.035
0.926CysSer: 0.926 ± 0.032
0.789CysThr: 0.789 ± 0.031
1.124CysVal: 1.124 ± 0.037
0.189CysTrp: 0.189 ± 0.016
0.403CysTyr: 0.403 ± 0.02
0.0CysXaa: 0.0 ± 0.0
Asp
6.214AspAla: 6.214 ± 0.119
0.715AspCys: 0.715 ± 0.03
2.406AspAsp: 2.406 ± 0.058
2.939AspGlu: 2.939 ± 0.063
2.168AspPhe: 2.168 ± 0.044
4.169AspGly: 4.169 ± 0.089
0.988AspHis: 0.988 ± 0.031
2.914AspIle: 2.914 ± 0.073
2.295AspLys: 2.295 ± 0.054
4.985AspLeu: 4.985 ± 0.081
1.853AspMet: 1.853 ± 0.045
1.563AspAsn: 1.563 ± 0.049
2.405AspPro: 2.405 ± 0.048
1.461AspGln: 1.461 ± 0.041
2.554AspArg: 2.554 ± 0.056
2.679AspSer: 2.679 ± 0.054
2.358AspThr: 2.358 ± 0.058
3.949AspVal: 3.949 ± 0.073
0.72AspTrp: 0.72 ± 0.029
1.381AspTyr: 1.381 ± 0.039
0.0AspXaa: 0.0 ± 0.0
Glu
6.882GluAla: 6.882 ± 0.087
0.63GluCys: 0.63 ± 0.024
3.007GluAsp: 3.007 ± 0.064
3.796GluGlu: 3.796 ± 0.075
1.666GluPhe: 1.666 ± 0.04
4.169GluGly: 4.169 ± 0.062
1.466GluHis: 1.466 ± 0.039
2.848GluIle: 2.848 ± 0.058
3.309GluLys: 3.309 ± 0.065
5.308GluLeu: 5.308 ± 0.087
1.749GluMet: 1.749 ± 0.047
2.181GluAsn: 2.181 ± 0.042
2.262GluPro: 2.262 ± 0.054
2.415GluGln: 2.415 ± 0.059
3.656GluArg: 3.656 ± 0.068
3.0GluSer: 3.0 ± 0.057
2.596GluThr: 2.596 ± 0.055
3.882GluVal: 3.882 ± 0.071
0.511GluTrp: 0.511 ± 0.026
1.309GluTyr: 1.309 ± 0.041
0.0GluXaa: 0.0 ± 0.0
Phe
3.756PheAla: 3.756 ± 0.068
0.825PheCys: 0.825 ± 0.027
1.957PheAsp: 1.957 ± 0.044
1.855PheGlu: 1.855 ± 0.053
2.048PhePhe: 2.048 ± 0.054
2.999PheGly: 2.999 ± 0.058
0.752PheHis: 0.752 ± 0.032
1.857PheIle: 1.857 ± 0.047
1.375PheLys: 1.375 ± 0.044
3.707PheLeu: 3.707 ± 0.076
1.154PheMet: 1.154 ± 0.034
1.127PheAsn: 1.127 ± 0.035
1.549PhePro: 1.549 ± 0.039
0.985PheGln: 0.985 ± 0.032
1.963PheArg: 1.963 ± 0.047
2.89PheSer: 2.89 ± 0.056
2.301PheThr: 2.301 ± 0.065
2.698PheVal: 2.698 ± 0.053
0.64PheTrp: 0.64 ± 0.026
1.067PheTyr: 1.067 ± 0.036
0.0PheXaa: 0.0 ± 0.0
Gly
7.731GlyAla: 7.731 ± 0.107
1.376GlyCys: 1.376 ± 0.044
3.606GlyAsp: 3.606 ± 0.071
4.155GlyGlu: 4.155 ± 0.06
3.186GlyPhe: 3.186 ± 0.06
6.973GlyGly: 6.973 ± 0.116
1.965GlyHis: 1.965 ± 0.051
4.494GlyIle: 4.494 ± 0.077
4.23GlyLys: 4.23 ± 0.083
8.717GlyLeu: 8.717 ± 0.109
2.82GlyMet: 2.82 ± 0.062
2.503GlyAsn: 2.503 ± 0.056
3.208GlyPro: 3.208 ± 0.065
3.672GlyGln: 3.672 ± 0.085
5.183GlyArg: 5.183 ± 0.088
4.661GlySer: 4.661 ± 0.098
4.192GlyThr: 4.192 ± 0.115
5.908GlyVal: 5.908 ± 0.075
1.012GlyTrp: 1.012 ± 0.029
2.235GlyTyr: 2.235 ± 0.055
0.0GlyXaa: 0.0 ± 0.0
His
2.339HisAla: 2.339 ± 0.054
0.454HisCys: 0.454 ± 0.023
1.112HisAsp: 1.112 ± 0.034
1.322HisGlu: 1.322 ± 0.038
0.962HisPhe: 0.962 ± 0.035
1.918HisGly: 1.918 ± 0.055
0.474HisHis: 0.474 ± 0.023
1.229HisIle: 1.229 ± 0.041
0.936HisLys: 0.936 ± 0.032
2.245HisLeu: 2.245 ± 0.047
0.794HisMet: 0.794 ± 0.026
0.765HisAsn: 0.765 ± 0.027
1.281HisPro: 1.281 ± 0.04
0.574HisGln: 0.574 ± 0.027
1.012HisArg: 1.012 ± 0.034
1.314HisSer: 1.314 ± 0.039
1.154HisThr: 1.154 ± 0.041
1.491HisVal: 1.491 ± 0.041
0.354HisTrp: 0.354 ± 0.02
0.609HisTyr: 0.609 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
4.648IleAla: 4.648 ± 0.086
0.886IleCys: 0.886 ± 0.032
2.218IleAsp: 2.218 ± 0.052
2.477IleGlu: 2.477 ± 0.061
2.16IlePhe: 2.16 ± 0.049
3.389IleGly: 3.389 ± 0.07
0.975IleHis: 0.975 ± 0.035
2.735IleIle: 2.735 ± 0.066
1.924IleLys: 1.924 ± 0.053
4.959IleLeu: 4.959 ± 0.088
1.478IleMet: 1.478 ± 0.045
1.754IleAsn: 1.754 ± 0.058
2.437IlePro: 2.437 ± 0.054
1.274IleGln: 1.274 ± 0.034
2.683IleArg: 2.683 ± 0.057
3.223IleSer: 3.223 ± 0.058
2.907IleThr: 2.907 ± 0.074
3.546IleVal: 3.546 ± 0.076
0.53IleTrp: 0.53 ± 0.026
1.225IleTyr: 1.225 ± 0.035
0.0IleXaa: 0.0 ± 0.0
Lys
4.547LysAla: 4.547 ± 0.084
0.436LysCys: 0.436 ± 0.024
2.293LysAsp: 2.293 ± 0.06
2.589LysGlu: 2.589 ± 0.063
1.098LysPhe: 1.098 ± 0.034
3.37LysGly: 3.37 ± 0.067
0.766LysHis: 0.766 ± 0.031
2.099LysIle: 2.099 ± 0.051
2.599LysLys: 2.599 ± 0.066
3.791LysLeu: 3.791 ± 0.071
1.197LysMet: 1.197 ± 0.036
1.84LysAsn: 1.84 ± 0.051
2.08LysPro: 2.08 ± 0.041
1.33LysGln: 1.33 ± 0.041
2.258LysArg: 2.258 ± 0.049
2.358LysSer: 2.358 ± 0.054
2.415LysThr: 2.415 ± 0.059
2.666LysVal: 2.666 ± 0.06
0.342LysTrp: 0.342 ± 0.018
1.093LysTyr: 1.093 ± 0.045
0.0LysXaa: 0.0 ± 0.0
Leu
12.806LeuAla: 12.806 ± 0.163
1.948LeuCys: 1.948 ± 0.046
5.658LeuAsp: 5.658 ± 0.081
6.236LeuGlu: 6.236 ± 0.089
3.876LeuPhe: 3.876 ± 0.084
8.109LeuGly: 8.109 ± 0.115
2.503LeuHis: 2.503 ± 0.053
3.882LeuIle: 3.882 ± 0.081
3.877LeuLys: 3.877 ± 0.071
11.8LeuLeu: 11.8 ± 0.165
2.73LeuMet: 2.73 ± 0.057
3.004LeuAsn: 3.004 ± 0.06
6.46LeuPro: 6.46 ± 0.093
3.257LeuGln: 3.257 ± 0.064
7.459LeuArg: 7.459 ± 0.119
6.174LeuSer: 6.174 ± 0.081
5.727LeuThr: 5.727 ± 0.081
6.988LeuVal: 6.988 ± 0.112
1.341LeuTrp: 1.341 ± 0.046
2.399LeuTyr: 2.399 ± 0.052
0.0LeuXaa: 0.0 ± 0.0
Met
3.547MetAla: 3.547 ± 0.067
0.331MetCys: 0.331 ± 0.017
1.63MetAsp: 1.63 ± 0.041
1.584MetGlu: 1.584 ± 0.042
0.783MetPhe: 0.783 ± 0.027
2.537MetGly: 2.537 ± 0.056
0.615MetHis: 0.615 ± 0.025
1.053MetIle: 1.053 ± 0.038
1.127MetLys: 1.127 ± 0.035
3.219MetLeu: 3.219 ± 0.071
0.579MetMet: 0.579 ± 0.025
0.965MetAsn: 0.965 ± 0.031
1.884MetPro: 1.884 ± 0.048
1.172MetGln: 1.172 ± 0.031
2.041MetArg: 2.041 ± 0.043
1.723MetSer: 1.723 ± 0.041
1.614MetThr: 1.614 ± 0.041
1.919MetVal: 1.919 ± 0.048
0.215MetTrp: 0.215 ± 0.014
0.524MetTyr: 0.524 ± 0.024
0.0MetXaa: 0.0 ± 0.0
Asn
3.428AsnAla: 3.428 ± 0.068
0.487AsnCys: 0.487 ± 0.025
1.516AsnAsp: 1.516 ± 0.059
1.471AsnGlu: 1.471 ± 0.045
1.238AsnPhe: 1.238 ± 0.04
2.455AsnGly: 2.455 ± 0.071
0.604AsnHis: 0.604 ± 0.023
1.847AsnIle: 1.847 ± 0.049
1.236AsnLys: 1.236 ± 0.04
3.167AsnLeu: 3.167 ± 0.066
0.975AsnMet: 0.975 ± 0.034
1.029AsnAsn: 1.029 ± 0.044
2.02AsnPro: 2.02 ± 0.051
0.87AsnGln: 0.87 ± 0.032
1.752AsnArg: 1.752 ± 0.052
1.679AsnSer: 1.679 ± 0.046
1.757AsnThr: 1.757 ± 0.05
2.258AsnVal: 2.258 ± 0.051
0.399AsnTrp: 0.399 ± 0.021
0.865AsnTyr: 0.865 ± 0.033
0.0AsnXaa: 0.0 ± 0.0
Pro
5.894ProAla: 5.894 ± 0.107
0.809ProCys: 0.809 ± 0.037
3.208ProAsp: 3.208 ± 0.058
3.851ProGlu: 3.851 ± 0.067
1.869ProPhe: 1.869 ± 0.048
4.611ProGly: 4.611 ± 0.078
1.273ProHis: 1.273 ± 0.038
1.757ProIle: 1.757 ± 0.048
1.665ProLys: 1.665 ± 0.049
5.491ProLeu: 5.491 ± 0.088
1.248ProMet: 1.248 ± 0.036
1.24ProAsn: 1.24 ± 0.041
2.616ProPro: 2.616 ± 0.073
2.397ProGln: 2.397 ± 0.068
2.784ProArg: 2.784 ± 0.06
2.751ProSer: 2.751 ± 0.051
2.266ProThr: 2.266 ± 0.064
4.154ProVal: 4.154 ± 0.068
0.733ProTrp: 0.733 ± 0.03
1.228ProTyr: 1.228 ± 0.035
0.0ProXaa: 0.0 ± 0.0
Gln
4.479GlnAla: 4.479 ± 0.094
0.593GlnCys: 0.593 ± 0.026
1.813GlnAsp: 1.813 ± 0.049
2.191GlnGlu: 2.191 ± 0.048
1.019GlnPhe: 1.019 ± 0.032
3.213GlnGly: 3.213 ± 0.062
0.879GlnHis: 0.879 ± 0.039
1.604GlnIle: 1.604 ± 0.038
1.803GlnLys: 1.803 ± 0.047
3.051GlnLeu: 3.051 ± 0.065
1.002GlnMet: 1.002 ± 0.032
1.267GlnAsn: 1.267 ± 0.035
1.851GlnPro: 1.851 ± 0.057
1.511GlnGln: 1.511 ± 0.05
2.443GlnArg: 2.443 ± 0.051
2.172GlnSer: 2.172 ± 0.057
1.84GlnThr: 1.84 ± 0.046
2.319GlnVal: 2.319 ± 0.046
0.581GlnTrp: 0.581 ± 0.027
0.918GlnTyr: 0.918 ± 0.037
0.0GlnXaa: 0.0 ± 0.0
Arg
6.107ArgAla: 6.107 ± 0.097
0.93ArgCys: 0.93 ± 0.036
3.104ArgAsp: 3.104 ± 0.061
3.997ArgGlu: 3.997 ± 0.076
2.331ArgPhe: 2.331 ± 0.053
3.976ArgGly: 3.976 ± 0.077
1.728ArgHis: 1.728 ± 0.05
3.342ArgIle: 3.342 ± 0.065
2.92ArgLys: 2.92 ± 0.057
7.097ArgLeu: 7.097 ± 0.098
2.13ArgMet: 2.13 ± 0.052
1.987ArgAsn: 1.987 ± 0.047
3.129ArgPro: 3.129 ± 0.074
3.163ArgGln: 3.163 ± 0.08
4.53ArgArg: 4.53 ± 0.088
3.136ArgSer: 3.136 ± 0.063
2.79ArgThr: 2.79 ± 0.058
3.986ArgVal: 3.986 ± 0.071
0.74ArgTrp: 0.74 ± 0.031
1.609ArgTyr: 1.609 ± 0.04
0.0ArgXaa: 0.0 ± 0.0
Ser
6.002SerAla: 6.002 ± 0.108
0.915SerCys: 0.915 ± 0.033
2.489SerAsp: 2.489 ± 0.057
2.707SerGlu: 2.707 ± 0.052
2.405SerPhe: 2.405 ± 0.053
5.871SerGly: 5.871 ± 0.101
1.208SerHis: 1.208 ± 0.035
2.889SerIle: 2.889 ± 0.061
2.065SerLys: 2.065 ± 0.05
6.505SerLeu: 6.505 ± 0.089
1.668SerMet: 1.668 ± 0.043
1.579SerAsn: 1.579 ± 0.051
3.206SerPro: 3.206 ± 0.064
2.041SerGln: 2.041 ± 0.053
3.76SerArg: 3.76 ± 0.065
3.658SerSer: 3.658 ± 0.088
2.812SerThr: 2.812 ± 0.059
4.203SerVal: 4.203 ± 0.068
0.696SerTrp: 0.696 ± 0.027
1.402SerTyr: 1.402 ± 0.04
0.0SerXaa: 0.0 ± 0.0
Thr
5.861ThrAla: 5.861 ± 0.096
0.747ThrCys: 0.747 ± 0.026
2.627ThrAsp: 2.627 ± 0.078
2.49ThrGlu: 2.49 ± 0.058
1.902ThrPhe: 1.902 ± 0.051
4.817ThrGly: 4.817 ± 0.071
1.041ThrHis: 1.041 ± 0.03
2.42ThrIle: 2.42 ± 0.081
1.454ThrLys: 1.454 ± 0.039
5.784ThrLeu: 5.784 ± 0.096
1.154ThrMet: 1.154 ± 0.036
1.406ThrAsn: 1.406 ± 0.054
3.501ThrPro: 3.501 ± 0.065
1.512ThrGln: 1.512 ± 0.038
2.785ThrArg: 2.785 ± 0.044
2.829ThrSer: 2.829 ± 0.062
2.689ThrThr: 2.689 ± 0.064
4.055ThrVal: 4.055 ± 0.071
0.571ThrTrp: 0.571 ± 0.025
1.204ThrTyr: 1.204 ± 0.055
0.0ThrXaa: 0.0 ± 0.0
Val
7.396ValAla: 7.396 ± 0.091
1.279ValCys: 1.279 ± 0.037
3.835ValAsp: 3.835 ± 0.072
4.113ValGlu: 4.113 ± 0.076
2.812ValPhe: 2.812 ± 0.064
5.301ValGly: 5.301 ± 0.08
1.381ValHis: 1.381 ± 0.042
3.419ValIle: 3.419 ± 0.071
2.497ValLys: 2.497 ± 0.056
7.629ValLeu: 7.629 ± 0.111
1.986ValMet: 1.986 ± 0.048
2.318ValAsn: 2.318 ± 0.058
3.595ValPro: 3.595 ± 0.063
2.454ValGln: 2.454 ± 0.051
4.753ValArg: 4.753 ± 0.077
4.391ValSer: 4.391 ± 0.073
3.8ValThr: 3.8 ± 0.072
5.28ValVal: 5.28 ± 0.098
0.863ValTrp: 0.863 ± 0.032
1.714ValTyr: 1.714 ± 0.042
0.0ValXaa: 0.0 ± 0.0
Trp
1.011TrpAla: 1.011 ± 0.032
0.165TrpCys: 0.165 ± 0.014
0.566TrpAsp: 0.566 ± 0.024
0.579TrpGlu: 0.579 ± 0.026
0.492TrpPhe: 0.492 ± 0.025
0.945TrpGly: 0.945 ± 0.034
0.322TrpHis: 0.322 ± 0.018
0.526TrpIle: 0.526 ± 0.025
0.527TrpLys: 0.527 ± 0.025
1.743TrpLeu: 1.743 ± 0.054
0.3TrpMet: 0.3 ± 0.018
0.458TrpAsn: 0.458 ± 0.022
0.708TrpPro: 0.708 ± 0.034
0.695TrpGln: 0.695 ± 0.028
1.032TrpArg: 1.032 ± 0.036
0.59TrpSer: 0.59 ± 0.023
0.56TrpThr: 0.56 ± 0.026
0.671TrpVal: 0.671 ± 0.027
0.225TrpTrp: 0.225 ± 0.016
0.283TrpTyr: 0.283 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.648TyrAla: 2.648 ± 0.05
0.461TyrCys: 0.461 ± 0.021
1.384TyrAsp: 1.384 ± 0.038
1.262TyrGlu: 1.262 ± 0.034
1.103TyrPhe: 1.103 ± 0.03
2.266TyrGly: 2.266 ± 0.061
0.513TyrHis: 0.513 ± 0.024
1.146TyrIle: 1.146 ± 0.039
0.952TyrLys: 0.952 ± 0.033
2.376TyrLeu: 2.376 ± 0.048
0.599TyrMet: 0.599 ± 0.02
0.826TyrAsn: 0.826 ± 0.029
1.158TyrPro: 1.158 ± 0.033
0.727TyrGln: 0.727 ± 0.028
1.442TyrArg: 1.442 ± 0.042
1.53TyrSer: 1.53 ± 0.043
1.347TyrThr: 1.347 ± 0.064
1.728TyrVal: 1.728 ± 0.043
0.362TyrTrp: 0.362 ± 0.019
0.788TyrTyr: 0.788 ± 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 3292 proteins (982839 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