Amino acid dipepetide frequency for Hymenobacter sp. DG25B

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
11.958AlaAla: 11.958 ± 0.169
0.779AlaCys: 0.779 ± 0.03
5.187AlaAsp: 5.187 ± 0.065
5.873AlaGlu: 5.873 ± 0.093
3.772AlaPhe: 3.772 ± 0.068
8.257AlaGly: 8.257 ± 0.115
1.932AlaHis: 1.932 ± 0.044
4.25AlaIle: 4.25 ± 0.074
3.684AlaLys: 3.684 ± 0.086
10.582AlaLeu: 10.582 ± 0.131
2.082AlaMet: 2.082 ± 0.045
3.179AlaAsn: 3.179 ± 0.06
4.833AlaPro: 4.833 ± 0.09
4.841AlaGln: 4.841 ± 0.083
5.709AlaArg: 5.709 ± 0.088
5.231AlaSer: 5.231 ± 0.088
6.217AlaThr: 6.217 ± 0.107
6.88AlaVal: 6.88 ± 0.103
1.092AlaTrp: 1.092 ± 0.038
3.025AlaTyr: 3.025 ± 0.061
0.0AlaXaa: 0.0 ± 0.0
Cys
0.618CysAla: 0.618 ± 0.029
0.102CysCys: 0.102 ± 0.011
0.347CysAsp: 0.347 ± 0.019
0.348CysGlu: 0.348 ± 0.018
0.307CysPhe: 0.307 ± 0.017
0.64CysGly: 0.64 ± 0.026
0.213CysHis: 0.213 ± 0.016
0.379CysIle: 0.379 ± 0.021
0.204CysLys: 0.204 ± 0.014
0.765CysLeu: 0.765 ± 0.025
0.125CysMet: 0.125 ± 0.011
0.264CysAsn: 0.264 ± 0.014
0.406CysPro: 0.406 ± 0.022
0.335CysGln: 0.335 ± 0.018
0.415CysArg: 0.415 ± 0.021
0.428CysSer: 0.428 ± 0.024
0.442CysThr: 0.442 ± 0.021
0.44CysVal: 0.44 ± 0.019
0.096CysTrp: 0.096 ± 0.01
0.268CysTyr: 0.268 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
4.847AspAla: 4.847 ± 0.066
0.351AspCys: 0.351 ± 0.019
2.235AspAsp: 2.235 ± 0.058
3.112AspGlu: 3.112 ± 0.059
2.594AspPhe: 2.594 ± 0.054
3.575AspGly: 3.575 ± 0.079
0.862AspHis: 0.862 ± 0.032
2.597AspIle: 2.597 ± 0.053
2.474AspLys: 2.474 ± 0.061
4.797AspLeu: 4.797 ± 0.074
1.071AspMet: 1.071 ± 0.032
1.869AspAsn: 1.869 ± 0.05
2.3AspPro: 2.3 ± 0.05
1.937AspGln: 1.937 ± 0.046
2.383AspArg: 2.383 ± 0.055
2.535AspSer: 2.535 ± 0.054
2.677AspThr: 2.677 ± 0.057
3.572AspVal: 3.572 ± 0.065
0.721AspTrp: 0.721 ± 0.029
2.142AspTyr: 2.142 ± 0.05
0.0AspXaa: 0.0 ± 0.0
Glu
5.783GluAla: 5.783 ± 0.086
0.306GluCys: 0.306 ± 0.017
2.482GluAsp: 2.482 ± 0.049
3.705GluGlu: 3.705 ± 0.081
2.222GluPhe: 2.222 ± 0.052
3.632GluGly: 3.632 ± 0.063
1.256GluHis: 1.256 ± 0.037
2.818GluIle: 2.818 ± 0.062
3.203GluLys: 3.203 ± 0.067
6.431GluLeu: 6.431 ± 0.101
1.408GluMet: 1.408 ± 0.039
2.203GluAsn: 2.203 ± 0.055
2.236GluPro: 2.236 ± 0.049
3.236GluGln: 3.236 ± 0.06
3.342GluArg: 3.342 ± 0.083
2.4GluSer: 2.4 ± 0.049
2.909GluThr: 2.909 ± 0.052
4.266GluVal: 4.266 ± 0.074
0.639GluTrp: 0.639 ± 0.023
1.974GluTyr: 1.974 ± 0.049
0.0GluXaa: 0.0 ± 0.0
Phe
3.623PheAla: 3.623 ± 0.054
0.367PheCys: 0.367 ± 0.018
2.375PheAsp: 2.375 ± 0.055
2.307PheGlu: 2.307 ± 0.049
1.917PhePhe: 1.917 ± 0.05
3.349PheGly: 3.349 ± 0.06
0.782PheHis: 0.782 ± 0.029
1.953PheIle: 1.953 ± 0.046
1.559PheLys: 1.559 ± 0.041
4.233PheLeu: 4.233 ± 0.074
0.821PheMet: 0.821 ± 0.03
1.745PheAsn: 1.745 ± 0.047
1.862PhePro: 1.862 ± 0.042
1.711PheGln: 1.711 ± 0.044
2.571PheArg: 2.571 ± 0.051
2.853PheSer: 2.853 ± 0.055
2.873PheThr: 2.873 ± 0.059
2.825PheVal: 2.825 ± 0.051
0.576PheTrp: 0.576 ± 0.027
1.621PheTyr: 1.621 ± 0.039
0.0PheXaa: 0.0 ± 0.0
Gly
6.307GlyAla: 6.307 ± 0.096
0.677GlyCys: 0.677 ± 0.029
3.026GlyAsp: 3.026 ± 0.066
3.738GlyGlu: 3.738 ± 0.068
3.327GlyPhe: 3.327 ± 0.057
5.666GlyGly: 5.666 ± 0.123
1.615GlyHis: 1.615 ± 0.042
4.045GlyIle: 4.045 ± 0.071
3.816GlyLys: 3.816 ± 0.067
7.915GlyLeu: 7.915 ± 0.103
1.67GlyMet: 1.67 ± 0.043
2.837GlyAsn: 2.837 ± 0.068
2.801GlyPro: 2.801 ± 0.062
3.713GlyGln: 3.713 ± 0.062
4.379GlyArg: 4.379 ± 0.072
4.436GlySer: 4.436 ± 0.088
4.953GlyThr: 4.953 ± 0.122
5.044GlyVal: 5.044 ± 0.086
1.011GlyTrp: 1.011 ± 0.03
2.951GlyTyr: 2.951 ± 0.059
0.0GlyXaa: 0.0 ± 0.0
His
1.72HisAla: 1.72 ± 0.045
0.174HisCys: 0.174 ± 0.013
1.049HisAsp: 1.049 ± 0.033
1.106HisGlu: 1.106 ± 0.036
1.114HisPhe: 1.114 ± 0.036
1.514HisGly: 1.514 ± 0.038
0.654HisHis: 0.654 ± 0.026
1.046HisIle: 1.046 ± 0.032
0.777HisLys: 0.777 ± 0.026
2.508HisLeu: 2.508 ± 0.049
0.394HisMet: 0.394 ± 0.019
0.799HisAsn: 0.799 ± 0.027
1.317HisPro: 1.317 ± 0.036
1.074HisGln: 1.074 ± 0.029
1.288HisArg: 1.288 ± 0.037
1.071HisSer: 1.071 ± 0.03
1.277HisThr: 1.277 ± 0.036
1.32HisVal: 1.32 ± 0.037
0.307HisTrp: 0.307 ± 0.017
0.901HisTyr: 0.901 ± 0.031
0.0HisXaa: 0.0 ± 0.0
Ile
4.095IleAla: 4.095 ± 0.068
0.432IleCys: 0.432 ± 0.02
2.652IleAsp: 2.652 ± 0.06
2.749IleGlu: 2.749 ± 0.06
1.848IlePhe: 1.848 ± 0.052
3.852IleGly: 3.852 ± 0.065
0.883IleHis: 0.883 ± 0.03
2.68IleIle: 2.68 ± 0.059
2.172IleLys: 2.172 ± 0.051
4.401IleLeu: 4.401 ± 0.074
0.938IleMet: 0.938 ± 0.033
1.974IleAsn: 1.974 ± 0.049
2.405IlePro: 2.405 ± 0.043
1.869IleGln: 1.869 ± 0.044
2.899IleArg: 2.899 ± 0.056
3.217IleSer: 3.217 ± 0.052
3.229IleThr: 3.229 ± 0.074
3.141IleVal: 3.141 ± 0.06
0.529IleTrp: 0.529 ± 0.027
1.451IleTyr: 1.451 ± 0.041
0.0IleXaa: 0.0 ± 0.0
Lys
4.306LysAla: 4.306 ± 0.075
0.183LysCys: 0.183 ± 0.014
2.258LysAsp: 2.258 ± 0.059
2.663LysGlu: 2.663 ± 0.058
1.478LysPhe: 1.478 ± 0.038
3.058LysGly: 3.058 ± 0.062
0.836LysHis: 0.836 ± 0.032
2.097LysIle: 2.097 ± 0.053
2.424LysLys: 2.424 ± 0.068
4.515LysLeu: 4.515 ± 0.07
1.194LysMet: 1.194 ± 0.035
1.827LysAsn: 1.827 ± 0.039
2.309LysPro: 2.309 ± 0.053
1.957LysGln: 1.957 ± 0.055
2.172LysArg: 2.172 ± 0.054
2.239LysSer: 2.239 ± 0.045
2.576LysThr: 2.576 ± 0.042
3.136LysVal: 3.136 ± 0.067
0.416LysTrp: 0.416 ± 0.02
1.442LysTyr: 1.442 ± 0.039
0.0LysXaa: 0.0 ± 0.0
Leu
11.088LeuAla: 11.088 ± 0.126
0.749LeuCys: 0.749 ± 0.031
5.348LeuAsp: 5.348 ± 0.082
5.417LeuGlu: 5.417 ± 0.091
4.293LeuPhe: 4.293 ± 0.079
7.713LeuGly: 7.713 ± 0.105
2.526LeuHis: 2.526 ± 0.052
4.585LeuIle: 4.585 ± 0.08
4.387LeuLys: 4.387 ± 0.069
13.261LeuLeu: 13.261 ± 0.204
2.186LeuMet: 2.186 ± 0.057
4.185LeuAsn: 4.185 ± 0.072
6.207LeuPro: 6.207 ± 0.095
4.918LeuGln: 4.918 ± 0.082
7.175LeuArg: 7.175 ± 0.097
6.482LeuSer: 6.482 ± 0.077
7.01LeuThr: 7.01 ± 0.091
7.365LeuVal: 7.365 ± 0.111
1.087LeuTrp: 1.087 ± 0.036
3.298LeuTyr: 3.298 ± 0.068
0.0LeuXaa: 0.0 ± 0.0
Met
2.145MetAla: 2.145 ± 0.055
0.119MetCys: 0.119 ± 0.011
0.904MetAsp: 0.904 ± 0.029
1.098MetGlu: 1.098 ± 0.034
0.61MetPhe: 0.61 ± 0.026
1.494MetGly: 1.494 ± 0.042
0.471MetHis: 0.471 ± 0.023
0.85MetIle: 0.85 ± 0.03
1.172MetLys: 1.172 ± 0.035
2.46MetLeu: 2.46 ± 0.054
0.531MetMet: 0.531 ± 0.027
0.849MetAsn: 0.849 ± 0.028
1.373MetPro: 1.373 ± 0.035
1.099MetGln: 1.099 ± 0.033
1.398MetArg: 1.398 ± 0.042
1.182MetSer: 1.182 ± 0.035
1.062MetThr: 1.062 ± 0.033
1.431MetVal: 1.431 ± 0.041
0.171MetTrp: 0.171 ± 0.013
0.497MetTyr: 0.497 ± 0.023
0.0MetXaa: 0.0 ± 0.0
Asn
3.417AsnAla: 3.417 ± 0.061
0.264AsnCys: 0.264 ± 0.016
1.735AsnAsp: 1.735 ± 0.047
1.938AsnGlu: 1.938 ± 0.04
1.606AsnPhe: 1.606 ± 0.046
3.05AsnGly: 3.05 ± 0.076
0.752AsnHis: 0.752 ± 0.027
1.956AsnIle: 1.956 ± 0.047
1.578AsnLys: 1.578 ± 0.047
3.936AsnLeu: 3.936 ± 0.063
0.745AsnMet: 0.745 ± 0.028
1.602AsnAsn: 1.602 ± 0.057
2.5AsnPro: 2.5 ± 0.053
1.777AsnGln: 1.777 ± 0.047
2.227AsnArg: 2.227 ± 0.057
2.139AsnSer: 2.139 ± 0.051
2.452AsnThr: 2.452 ± 0.062
2.472AsnVal: 2.472 ± 0.051
0.538AsnTrp: 0.538 ± 0.026
1.514AsnTyr: 1.514 ± 0.045
0.0AsnXaa: 0.0 ± 0.0
Pro
6.584ProAla: 6.584 ± 0.108
0.264ProCys: 0.264 ± 0.016
3.151ProAsp: 3.151 ± 0.06
3.694ProGlu: 3.694 ± 0.059
1.922ProPhe: 1.922 ± 0.047
3.935ProGly: 3.935 ± 0.064
1.051ProHis: 1.051 ± 0.031
2.102ProIle: 2.102 ± 0.048
1.864ProLys: 1.864 ± 0.054
4.818ProLeu: 4.818 ± 0.072
0.883ProMet: 0.883 ± 0.03
1.951ProAsn: 1.951 ± 0.043
1.839ProPro: 1.839 ± 0.051
2.11ProGln: 2.11 ± 0.043
2.3ProArg: 2.3 ± 0.052
2.374ProSer: 2.374 ± 0.052
3.224ProThr: 3.224 ± 0.064
4.137ProVal: 4.137 ± 0.066
0.54ProTrp: 0.54 ± 0.025
1.619ProTyr: 1.619 ± 0.041
0.0ProXaa: 0.0 ± 0.0
Gln
4.974GlnAla: 4.974 ± 0.08
0.214GlnCys: 0.214 ± 0.015
2.115GlnAsp: 2.115 ± 0.04
2.934GlnGlu: 2.934 ± 0.053
1.769GlnPhe: 1.769 ± 0.047
2.836GlnGly: 2.836 ± 0.061
1.317GlnHis: 1.317 ± 0.04
2.025GlnIle: 2.025 ± 0.042
2.065GlnLys: 2.065 ± 0.045
5.764GlnLeu: 5.764 ± 0.079
0.929GlnMet: 0.929 ± 0.03
1.793GlnAsn: 1.793 ± 0.046
2.808GlnPro: 2.808 ± 0.059
3.417GlnGln: 3.417 ± 0.081
3.066GlnArg: 3.066 ± 0.059
1.967GlnSer: 1.967 ± 0.043
2.469GlnThr: 2.469 ± 0.051
3.435GlnVal: 3.435 ± 0.056
0.534GlnTrp: 0.534 ± 0.022
1.722GlnTyr: 1.722 ± 0.041
0.0GlnXaa: 0.0 ± 0.0
Arg
4.896ArgAla: 4.896 ± 0.078
0.346ArgCys: 0.346 ± 0.018
2.531ArgAsp: 2.531 ± 0.059
3.474ArgGlu: 3.474 ± 0.07
2.698ArgPhe: 2.698 ± 0.052
3.402ArgGly: 3.402 ± 0.067
1.483ArgHis: 1.483 ± 0.04
3.108ArgIle: 3.108 ± 0.061
2.441ArgLys: 2.441 ± 0.045
6.899ArgLeu: 6.899 ± 0.107
1.406ArgMet: 1.406 ± 0.044
2.261ArgAsn: 2.261 ± 0.056
3.012ArgPro: 3.012 ± 0.056
3.615ArgGln: 3.615 ± 0.062
4.1ArgArg: 4.1 ± 0.083
2.618ArgSer: 2.618 ± 0.052
3.477ArgThr: 3.477 ± 0.057
4.085ArgVal: 4.085 ± 0.067
0.797ArgTrp: 0.797 ± 0.03
2.463ArgTyr: 2.463 ± 0.057
0.0ArgXaa: 0.0 ± 0.0
Ser
5.123SerAla: 5.123 ± 0.076
0.487SerCys: 0.487 ± 0.025
2.38SerAsp: 2.38 ± 0.056
2.667SerGlu: 2.667 ± 0.056
2.725SerPhe: 2.725 ± 0.052
4.623SerGly: 4.623 ± 0.102
1.016SerHis: 1.016 ± 0.03
2.831SerIle: 2.831 ± 0.051
2.231SerLys: 2.231 ± 0.05
5.856SerLeu: 5.856 ± 0.083
1.196SerMet: 1.196 ± 0.037
2.027SerAsn: 2.027 ± 0.049
2.807SerPro: 2.807 ± 0.058
2.128SerGln: 2.128 ± 0.048
3.119SerArg: 3.119 ± 0.051
3.454SerSer: 3.454 ± 0.08
3.441SerThr: 3.441 ± 0.081
3.966SerVal: 3.966 ± 0.073
0.702SerTrp: 0.702 ± 0.027
2.115SerTyr: 2.115 ± 0.052
0.0SerXaa: 0.0 ± 0.0
Thr
6.205ThrAla: 6.205 ± 0.108
0.37ThrCys: 0.37 ± 0.021
3.255ThrAsp: 3.255 ± 0.064
3.295ThrGlu: 3.295 ± 0.058
2.525ThrPhe: 2.525 ± 0.055
5.167ThrGly: 5.167 ± 0.099
1.239ThrHis: 1.239 ± 0.035
3.065ThrIle: 3.065 ± 0.07
2.1ThrLys: 2.1 ± 0.042
6.353ThrLeu: 6.353 ± 0.09
1.046ThrMet: 1.046 ± 0.033
2.187ThrAsn: 2.187 ± 0.059
3.807ThrPro: 3.807 ± 0.069
2.396ThrGln: 2.396 ± 0.051
3.036ThrArg: 3.036 ± 0.063
3.443ThrSer: 3.443 ± 0.08
4.052ThrThr: 4.052 ± 0.102
4.702ThrVal: 4.702 ± 0.091
0.758ThrTrp: 0.758 ± 0.029
2.282ThrTyr: 2.282 ± 0.067
0.0ThrXaa: 0.0 ± 0.0
Val
7.434ValAla: 7.434 ± 0.105
0.574ValCys: 0.574 ± 0.027
3.197ValAsp: 3.197 ± 0.057
3.861ValGlu: 3.861 ± 0.066
2.922ValPhe: 2.922 ± 0.05
4.941ValGly: 4.941 ± 0.076
1.339ValHis: 1.339 ± 0.036
3.164ValIle: 3.164 ± 0.062
3.01ValLys: 3.01 ± 0.073
8.271ValLeu: 8.271 ± 0.117
1.41ValMet: 1.41 ± 0.041
2.58ValAsn: 2.58 ± 0.055
3.508ValPro: 3.508 ± 0.073
3.242ValGln: 3.242 ± 0.057
4.407ValArg: 4.407 ± 0.069
4.129ValSer: 4.129 ± 0.072
4.128ValThr: 4.128 ± 0.085
5.658ValVal: 5.658 ± 0.086
0.782ValTrp: 0.782 ± 0.03
2.348ValTyr: 2.348 ± 0.046
0.0ValXaa: 0.0 ± 0.0
Trp
1.055TrpAla: 1.055 ± 0.041
0.098TrpCys: 0.098 ± 0.01
0.513TrpAsp: 0.513 ± 0.023
0.641TrpGlu: 0.641 ± 0.027
0.519TrpPhe: 0.519 ± 0.022
0.728TrpGly: 0.728 ± 0.031
0.324TrpHis: 0.324 ± 0.016
0.467TrpIle: 0.467 ± 0.023
0.498TrpLys: 0.498 ± 0.023
1.635TrpLeu: 1.635 ± 0.055
0.287TrpMet: 0.287 ± 0.016
0.483TrpAsn: 0.483 ± 0.023
0.478TrpPro: 0.478 ± 0.022
0.825TrpGln: 0.825 ± 0.03
0.808TrpArg: 0.808 ± 0.031
0.602TrpSer: 0.602 ± 0.024
0.57TrpThr: 0.57 ± 0.024
0.834TrpVal: 0.834 ± 0.03
0.19TrpTrp: 0.19 ± 0.014
0.405TrpTyr: 0.405 ± 0.026
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.184TyrAla: 3.184 ± 0.058
0.284TyrCys: 0.284 ± 0.017
1.911TyrAsp: 1.911 ± 0.05
1.831TyrGlu: 1.831 ± 0.043
1.754TyrPhe: 1.754 ± 0.046
2.493TyrGly: 2.493 ± 0.05
0.857TyrHis: 0.857 ± 0.031
1.399TyrIle: 1.399 ± 0.037
1.427TyrLys: 1.427 ± 0.042
3.882TyrLeu: 3.882 ± 0.059
0.591TyrMet: 0.591 ± 0.029
1.582TyrAsn: 1.582 ± 0.046
1.56TyrPro: 1.56 ± 0.04
1.953TyrGln: 1.953 ± 0.046
2.318TyrArg: 2.318 ± 0.047
2.095TyrSer: 2.095 ± 0.057
2.247TyrThr: 2.247 ± 0.054
2.194TyrVal: 2.194 ± 0.041
0.475TyrTrp: 0.475 ± 0.022
1.541TyrTyr: 1.541 ± 0.05
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 3153 proteins (1029997 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