Amino acid dipepetide frequency for Flavobacterium enshiense DK69

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
4.619AlaAla: 4.619 ± 0.114
0.589AlaCys: 0.589 ± 0.028
3.433AlaAsp: 3.433 ± 0.064
4.117AlaGlu: 4.117 ± 0.081
3.343AlaPhe: 3.343 ± 0.072
4.433AlaGly: 4.433 ± 0.099
1.044AlaHis: 1.044 ± 0.038
5.124AlaIle: 5.124 ± 0.071
5.025AlaLys: 5.025 ± 0.098
5.982AlaLeu: 5.982 ± 0.096
1.61AlaMet: 1.61 ± 0.044
3.646AlaAsn: 3.646 ± 0.074
2.076AlaPro: 2.076 ± 0.067
2.396AlaGln: 2.396 ± 0.06
1.851AlaArg: 1.851 ± 0.05
4.221AlaSer: 4.221 ± 0.085
4.223AlaThr: 4.223 ± 0.116
4.603AlaVal: 4.603 ± 0.08
0.572AlaTrp: 0.572 ± 0.027
2.369AlaTyr: 2.369 ± 0.058
0.0AlaXaa: 0.0 ± 0.0
Cys
0.545CysAla: 0.545 ± 0.032
0.118CysCys: 0.118 ± 0.011
0.472CysAsp: 0.472 ± 0.026
0.504CysGlu: 0.504 ± 0.027
0.446CysPhe: 0.446 ± 0.023
0.744CysGly: 0.744 ± 0.038
0.197CysHis: 0.197 ± 0.016
0.621CysIle: 0.621 ± 0.03
0.5CysLys: 0.5 ± 0.022
0.661CysLeu: 0.661 ± 0.026
0.151CysMet: 0.151 ± 0.012
0.473CysAsn: 0.473 ± 0.023
0.403CysPro: 0.403 ± 0.033
0.253CysGln: 0.253 ± 0.018
0.213CysArg: 0.213 ± 0.014
0.686CysSer: 0.686 ± 0.036
0.471CysThr: 0.471 ± 0.027
0.487CysVal: 0.487 ± 0.023
0.084CysTrp: 0.084 ± 0.012
0.336CysTyr: 0.336 ± 0.018
0.0CysXaa: 0.0 ± 0.0
Asp
3.467AspAla: 3.467 ± 0.061
0.448AspCys: 0.448 ± 0.022
2.596AspAsp: 2.596 ± 0.053
3.672AspGlu: 3.672 ± 0.062
3.767AspPhe: 3.767 ± 0.077
3.551AspGly: 3.551 ± 0.079
0.801AspHis: 0.801 ± 0.031
4.01AspIle: 4.01 ± 0.073
4.275AspLys: 4.275 ± 0.082
4.818AspLeu: 4.818 ± 0.09
1.083AspMet: 1.083 ± 0.037
3.195AspAsn: 3.195 ± 0.063
1.58AspPro: 1.58 ± 0.054
1.28AspGln: 1.28 ± 0.043
1.723AspArg: 1.723 ± 0.044
3.071AspSer: 3.071 ± 0.064
2.577AspThr: 2.577 ± 0.057
3.694AspVal: 3.694 ± 0.073
0.716AspTrp: 0.716 ± 0.028
2.743AspTyr: 2.743 ± 0.063
0.0AspXaa: 0.0 ± 0.0
Glu
4.259GluAla: 4.259 ± 0.087
0.355GluCys: 0.355 ± 0.021
3.159GluAsp: 3.159 ± 0.061
4.724GluGlu: 4.724 ± 0.088
3.039GluPhe: 3.039 ± 0.06
3.63GluGly: 3.63 ± 0.062
1.116GluHis: 1.116 ± 0.038
5.736GluIle: 5.736 ± 0.09
6.493GluLys: 6.493 ± 0.102
5.761GluLeu: 5.761 ± 0.09
1.813GluMet: 1.813 ± 0.045
4.687GluAsn: 4.687 ± 0.082
1.543GluPro: 1.543 ± 0.041
2.179GluGln: 2.179 ± 0.057
2.37GluArg: 2.37 ± 0.059
3.295GluSer: 3.295 ± 0.067
3.697GluThr: 3.697 ± 0.055
4.168GluVal: 4.168 ± 0.075
0.616GluTrp: 0.616 ± 0.026
2.348GluTyr: 2.348 ± 0.061
0.0GluXaa: 0.0 ± 0.0
Phe
3.158PheAla: 3.158 ± 0.065
0.516PheCys: 0.516 ± 0.026
3.367PheAsp: 3.367 ± 0.059
3.595PheGlu: 3.595 ± 0.07
2.887PhePhe: 2.887 ± 0.072
3.81PheGly: 3.81 ± 0.068
0.881PheHis: 0.881 ± 0.031
3.91PheIle: 3.91 ± 0.077
3.625PheLys: 3.625 ± 0.071
4.677PheLeu: 4.677 ± 0.085
1.249PheMet: 1.249 ± 0.035
3.042PheAsn: 3.042 ± 0.065
1.852PhePro: 1.852 ± 0.047
1.673PheGln: 1.673 ± 0.044
1.719PheArg: 1.719 ± 0.045
4.119PheSer: 4.119 ± 0.08
3.299PheThr: 3.299 ± 0.065
3.365PheVal: 3.365 ± 0.068
0.587PheTrp: 0.587 ± 0.025
2.282PheTyr: 2.282 ± 0.053
0.0PheXaa: 0.0 ± 0.0
Gly
4.223GlyAla: 4.223 ± 0.103
0.686GlyCys: 0.686 ± 0.033
3.109GlyAsp: 3.109 ± 0.061
3.558GlyGlu: 3.558 ± 0.072
3.701GlyPhe: 3.701 ± 0.06
4.76GlyGly: 4.76 ± 0.106
1.167GlyHis: 1.167 ± 0.039
5.415GlyIle: 5.415 ± 0.09
5.278GlyLys: 5.278 ± 0.086
5.648GlyLeu: 5.648 ± 0.079
1.715GlyMet: 1.715 ± 0.05
3.87GlyAsn: 3.87 ± 0.088
1.454GlyPro: 1.454 ± 0.047
2.004GlyGln: 2.004 ± 0.049
1.993GlyArg: 1.993 ± 0.053
4.192GlySer: 4.192 ± 0.096
4.671GlyThr: 4.671 ± 0.148
4.25GlyVal: 4.25 ± 0.069
0.702GlyTrp: 0.702 ± 0.03
2.783GlyTyr: 2.783 ± 0.057
0.0GlyXaa: 0.0 ± 0.0
His
0.951HisAla: 0.951 ± 0.033
0.198HisCys: 0.198 ± 0.017
0.835HisAsp: 0.835 ± 0.028
0.987HisGlu: 0.987 ± 0.036
1.206HisPhe: 1.206 ± 0.037
1.078HisGly: 1.078 ± 0.038
0.479HisHis: 0.479 ± 0.03
1.351HisIle: 1.351 ± 0.037
1.234HisLys: 1.234 ± 0.037
1.644HisLeu: 1.644 ± 0.045
0.354HisMet: 0.354 ± 0.018
1.006HisAsn: 1.006 ± 0.035
0.876HisPro: 0.876 ± 0.036
0.656HisGln: 0.656 ± 0.027
0.636HisArg: 0.636 ± 0.028
1.056HisSer: 1.056 ± 0.035
0.903HisThr: 0.903 ± 0.031
0.924HisVal: 0.924 ± 0.033
0.203HisTrp: 0.203 ± 0.014
0.866HisTyr: 0.866 ± 0.032
0.0HisXaa: 0.0 ± 0.0
Ile
5.623IleAla: 5.623 ± 0.089
0.712IleCys: 0.712 ± 0.033
4.574IleAsp: 4.574 ± 0.076
5.271IleGlu: 5.271 ± 0.079
3.562IlePhe: 3.562 ± 0.073
5.158IleGly: 5.158 ± 0.089
1.354IleHis: 1.354 ± 0.036
5.776IleIle: 5.776 ± 0.111
5.683IleLys: 5.683 ± 0.093
6.772IleLeu: 6.772 ± 0.117
1.518IleMet: 1.518 ± 0.041
4.475IleAsn: 4.475 ± 0.082
3.199IlePro: 3.199 ± 0.065
2.609IleGln: 2.609 ± 0.059
2.63IleArg: 2.63 ± 0.059
5.371IleSer: 5.371 ± 0.081
4.801IleThr: 4.801 ± 0.106
5.066IleVal: 5.066 ± 0.077
0.663IleTrp: 0.663 ± 0.028
2.738IleTyr: 2.738 ± 0.059
0.0IleXaa: 0.0 ± 0.0
Lys
5.142LysAla: 5.142 ± 0.094
0.417LysCys: 0.417 ± 0.024
4.12LysAsp: 4.12 ± 0.08
6.132LysGlu: 6.132 ± 0.103
3.125LysPhe: 3.125 ± 0.062
4.458LysGly: 4.458 ± 0.092
1.295LysHis: 1.295 ± 0.039
6.566LysIle: 6.566 ± 0.103
7.133LysLys: 7.133 ± 0.111
6.465LysLeu: 6.465 ± 0.087
2.384LysMet: 2.384 ± 0.056
5.458LysAsn: 5.458 ± 0.097
2.523LysPro: 2.523 ± 0.054
2.695LysGln: 2.695 ± 0.057
2.772LysArg: 2.772 ± 0.055
4.512LysSer: 4.512 ± 0.092
4.779LysThr: 4.779 ± 0.082
4.875LysVal: 4.875 ± 0.083
0.756LysTrp: 0.756 ± 0.03
3.104LysTyr: 3.104 ± 0.064
0.0LysXaa: 0.0 ± 0.0
Leu
5.782LeuAla: 5.782 ± 0.086
0.666LeuCys: 0.666 ± 0.032
4.701LeuAsp: 4.701 ± 0.082
5.638LeuGlu: 5.638 ± 0.099
5.067LeuPhe: 5.067 ± 0.103
5.576LeuGly: 5.576 ± 0.082
1.595LeuHis: 1.595 ± 0.043
6.609LeuIle: 6.609 ± 0.107
7.384LeuLys: 7.384 ± 0.112
8.867LeuLeu: 8.867 ± 0.144
2.065LeuMet: 2.065 ± 0.053
5.304LeuAsn: 5.304 ± 0.089
3.47LeuPro: 3.47 ± 0.064
3.184LeuGln: 3.184 ± 0.071
2.912LeuArg: 2.912 ± 0.059
6.521LeuSer: 6.521 ± 0.092
5.153LeuThr: 5.153 ± 0.089
5.312LeuVal: 5.312 ± 0.091
0.743LeuTrp: 0.743 ± 0.033
3.133LeuTyr: 3.133 ± 0.063
0.0LeuXaa: 0.0 ± 0.0
Met
1.71MetAla: 1.71 ± 0.047
0.153MetCys: 0.153 ± 0.012
1.181MetAsp: 1.181 ± 0.035
1.567MetGlu: 1.567 ± 0.043
0.953MetPhe: 0.953 ± 0.037
1.525MetGly: 1.525 ± 0.047
0.433MetHis: 0.433 ± 0.023
1.642MetIle: 1.642 ± 0.047
2.376MetLys: 2.376 ± 0.047
2.005MetLeu: 2.005 ± 0.049
0.677MetMet: 0.677 ± 0.031
1.391MetAsn: 1.391 ± 0.041
0.879MetPro: 0.879 ± 0.031
0.878MetGln: 0.878 ± 0.032
0.915MetArg: 0.915 ± 0.035
1.514MetSer: 1.514 ± 0.038
1.293MetThr: 1.293 ± 0.039
1.537MetVal: 1.537 ± 0.04
0.171MetTrp: 0.171 ± 0.013
0.779MetTyr: 0.779 ± 0.027
0.0MetXaa: 0.0 ± 0.0
Asn
3.838AsnAla: 3.838 ± 0.083
0.595AsnCys: 0.595 ± 0.033
3.31AsnAsp: 3.31 ± 0.064
3.721AsnGlu: 3.721 ± 0.073
3.098AsnPhe: 3.098 ± 0.057
4.299AsnGly: 4.299 ± 0.105
1.15AsnHis: 1.15 ± 0.036
4.549AsnIle: 4.549 ± 0.078
4.206AsnLys: 4.206 ± 0.067
5.262AsnLeu: 5.262 ± 0.082
1.32AsnMet: 1.32 ± 0.039
3.941AsnAsn: 3.941 ± 0.086
2.991AsnPro: 2.991 ± 0.066
2.282AsnGln: 2.282 ± 0.061
2.09AsnArg: 2.09 ± 0.054
3.899AsnSer: 3.899 ± 0.079
3.532AsnThr: 3.532 ± 0.087
3.8AsnVal: 3.8 ± 0.065
0.762AsnTrp: 0.762 ± 0.031
2.842AsnTyr: 2.842 ± 0.065
0.0AsnXaa: 0.0 ± 0.0
Pro
2.268ProAla: 2.268 ± 0.064
0.266ProCys: 0.266 ± 0.021
1.982ProAsp: 1.982 ± 0.053
2.843ProGlu: 2.843 ± 0.063
1.978ProPhe: 1.978 ± 0.049
2.098ProGly: 2.098 ± 0.058
0.61ProHis: 0.61 ± 0.026
2.699ProIle: 2.699 ± 0.05
2.66ProLys: 2.66 ± 0.053
2.748ProLeu: 2.748 ± 0.055
0.824ProMet: 0.824 ± 0.031
2.367ProAsn: 2.367 ± 0.063
0.79ProPro: 0.79 ± 0.038
1.155ProGln: 1.155 ± 0.041
0.909ProArg: 0.909 ± 0.032
2.18ProSer: 2.18 ± 0.058
2.227ProThr: 2.227 ± 0.081
2.68ProVal: 2.68 ± 0.055
0.303ProTrp: 0.303 ± 0.019
1.408ProTyr: 1.408 ± 0.04
0.0ProXaa: 0.0 ± 0.0
Gln
1.974GlnAla: 1.974 ± 0.051
0.234GlnCys: 0.234 ± 0.019
1.493GlnAsp: 1.493 ± 0.04
2.039GlnGlu: 2.039 ± 0.055
1.745GlnPhe: 1.745 ± 0.046
1.731GlnGly: 1.731 ± 0.045
0.612GlnHis: 0.612 ± 0.027
2.644GlnIle: 2.644 ± 0.054
3.022GlnLys: 3.022 ± 0.059
3.406GlnLeu: 3.406 ± 0.065
0.892GlnMet: 0.892 ± 0.028
2.355GlnAsn: 2.355 ± 0.064
1.224GlnPro: 1.224 ± 0.037
1.319GlnGln: 1.319 ± 0.048
1.17GlnArg: 1.17 ± 0.035
1.98GlnSer: 1.98 ± 0.05
2.015GlnThr: 2.015 ± 0.057
1.886GlnVal: 1.886 ± 0.048
0.369GlnTrp: 0.369 ± 0.022
1.382GlnTyr: 1.382 ± 0.046
0.0GlnXaa: 0.0 ± 0.0
Arg
1.886ArgAla: 1.886 ± 0.047
0.201ArgCys: 0.201 ± 0.016
1.626ArgAsp: 1.626 ± 0.044
2.141ArgGlu: 2.141 ± 0.051
1.853ArgPhe: 1.853 ± 0.046
1.78ArgGly: 1.78 ± 0.048
0.598ArgHis: 0.598 ± 0.027
2.818ArgIle: 2.818 ± 0.053
2.79ArgLys: 2.79 ± 0.055
3.181ArgLeu: 3.181 ± 0.059
0.947ArgMet: 0.947 ± 0.032
2.081ArgAsn: 2.081 ± 0.05
1.068ArgPro: 1.068 ± 0.035
1.004ArgGln: 1.004 ± 0.033
1.172ArgArg: 1.172 ± 0.04
1.73ArgSer: 1.73 ± 0.047
1.729ArgThr: 1.729 ± 0.043
2.017ArgVal: 2.017 ± 0.054
0.338ArgTrp: 0.338 ± 0.019
1.458ArgTyr: 1.458 ± 0.048
0.0ArgXaa: 0.0 ± 0.0
Ser
3.985SerAla: 3.985 ± 0.074
0.653SerCys: 0.653 ± 0.029
3.54SerAsp: 3.54 ± 0.065
4.163SerGlu: 4.163 ± 0.067
3.805SerPhe: 3.805 ± 0.069
4.979SerGly: 4.979 ± 0.119
1.129SerHis: 1.129 ± 0.034
4.772SerIle: 4.772 ± 0.08
4.683SerLys: 4.683 ± 0.078
5.761SerLeu: 5.761 ± 0.083
1.351SerMet: 1.351 ± 0.038
3.759SerAsn: 3.759 ± 0.083
2.098SerPro: 2.098 ± 0.056
2.251SerGln: 2.251 ± 0.051
1.924SerArg: 1.924 ± 0.045
4.352SerSer: 4.352 ± 0.102
3.666SerThr: 3.666 ± 0.095
4.539SerVal: 4.539 ± 0.069
0.691SerTrp: 0.691 ± 0.031
2.53SerTyr: 2.53 ± 0.056
0.0SerXaa: 0.0 ± 0.0
Thr
4.334ThrAla: 4.334 ± 0.136
0.44ThrCys: 0.44 ± 0.03
3.246ThrAsp: 3.246 ± 0.061
3.488ThrGlu: 3.488 ± 0.073
3.197ThrPhe: 3.197 ± 0.069
4.406ThrGly: 4.406 ± 0.121
0.958ThrHis: 0.958 ± 0.037
5.031ThrIle: 5.031 ± 0.101
3.84ThrLys: 3.84 ± 0.071
5.296ThrLeu: 5.296 ± 0.078
1.074ThrMet: 1.074 ± 0.036
3.37ThrAsn: 3.37 ± 0.091
2.756ThrPro: 2.756 ± 0.078
1.857ThrGln: 1.857 ± 0.053
1.62ThrArg: 1.62 ± 0.042
3.893ThrSer: 3.893 ± 0.1
3.982ThrThr: 3.982 ± 0.122
4.414ThrVal: 4.414 ± 0.103
0.578ThrTrp: 0.578 ± 0.031
2.337ThrTyr: 2.337 ± 0.063
0.0ThrXaa: 0.0 ± 0.0
Val
4.529ValAla: 4.529 ± 0.088
0.609ValCys: 0.609 ± 0.028
3.502ValAsp: 3.502 ± 0.06
3.903ValGlu: 3.903 ± 0.072
3.589ValPhe: 3.589 ± 0.06
3.952ValGly: 3.952 ± 0.069
1.034ValHis: 1.034 ± 0.038
4.94ValIle: 4.94 ± 0.07
4.835ValLys: 4.835 ± 0.071
6.093ValLeu: 6.093 ± 0.096
1.433ValMet: 1.433 ± 0.042
3.84ValAsn: 3.84 ± 0.061
2.427ValPro: 2.427 ± 0.053
1.9ValGln: 1.9 ± 0.046
2.004ValArg: 2.004 ± 0.047
4.712ValSer: 4.712 ± 0.077
4.164ValThr: 4.164 ± 0.117
4.571ValVal: 4.571 ± 0.082
0.609ValTrp: 0.609 ± 0.027
2.516ValTyr: 2.516 ± 0.054
0.0ValXaa: 0.0 ± 0.0
Trp
0.617TrpAla: 0.617 ± 0.031
0.122TrpCys: 0.122 ± 0.011
0.538TrpAsp: 0.538 ± 0.025
0.629TrpGlu: 0.629 ± 0.022
0.597TrpPhe: 0.597 ± 0.026
0.669TrpGly: 0.669 ± 0.032
0.224TrpHis: 0.224 ± 0.016
0.717TrpIle: 0.717 ± 0.025
0.818TrpLys: 0.818 ± 0.036
0.875TrpLeu: 0.875 ± 0.029
0.335TrpMet: 0.335 ± 0.018
0.687TrpAsn: 0.687 ± 0.03
0.192TrpPro: 0.192 ± 0.015
0.396TrpGln: 0.396 ± 0.024
0.358TrpArg: 0.358 ± 0.024
0.55TrpSer: 0.55 ± 0.026
0.621TrpThr: 0.621 ± 0.036
0.605TrpVal: 0.605 ± 0.027
0.113TrpTrp: 0.113 ± 0.012
0.382TrpTyr: 0.382 ± 0.02
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.361TyrAla: 2.361 ± 0.05
0.386TyrCys: 0.386 ± 0.023
2.284TyrAsp: 2.284 ± 0.058
2.299TyrGlu: 2.299 ± 0.049
2.653TyrPhe: 2.653 ± 0.065
2.544TyrGly: 2.544 ± 0.056
0.766TyrHis: 0.766 ± 0.031
2.625TyrIle: 2.625 ± 0.052
2.85TyrLys: 2.85 ± 0.059
3.763TyrLeu: 3.763 ± 0.066
0.783TyrMet: 0.783 ± 0.027
2.541TyrAsn: 2.541 ± 0.062
1.596TyrPro: 1.596 ± 0.049
1.52TyrGln: 1.52 ± 0.046
1.435TyrArg: 1.435 ± 0.041
2.774TyrSer: 2.774 ± 0.057
2.315TyrThr: 2.315 ± 0.06
2.369TyrVal: 2.369 ± 0.054
0.472TyrTrp: 0.472 ± 0.025
1.861TyrTyr: 1.861 ± 0.058
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 2848 proteins (932535 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