Amino acid dipepetide frequency for Cytophagaceae bacterium BCCC1

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.

	Ala	Cys	Asp	Glu	Phe	Gly	His	Ile	Lys	Leu	Met	Asn	Pro	Gln	Arg	Ser	Thr	Val	Trp	Tyr	Xaa
Ala	4.629AlaAla: 4.629 ± 0.092	0.634AlaCys: 0.634 ± 0.025	3.469AlaAsp: 3.469 ± 0.057	4.218AlaGlu: 4.218 ± 0.073	3.56AlaPhe: 3.56 ± 0.064	4.516AlaGly: 4.516 ± 0.075	1.004AlaHis: 1.004 ± 0.035	5.181AlaIle: 5.181 ± 0.085	4.822AlaLys: 4.822 ± 0.077	5.834AlaLeu: 5.834 ± 0.087	1.579AlaMet: 1.579 ± 0.044	3.679AlaAsn: 3.679 ± 0.064	2.042AlaPro: 2.042 ± 0.064	2.453AlaGln: 2.453 ± 0.051	1.962AlaArg: 1.962 ± 0.043	4.238AlaSer: 4.238 ± 0.087	3.757AlaThr: 3.757 ± 0.138	3.854AlaVal: 3.854 ± 0.062	0.667AlaTrp: 0.667 ± 0.023	2.373AlaTyr: 2.373 ± 0.046	0.0AlaXaa: 0.0 ± 0.0
Cys	0.441CysAla: 0.441 ± 0.023	0.117CysCys: 0.117 ± 0.011	0.416CysAsp: 0.416 ± 0.023	0.507CysGlu: 0.507 ± 0.026	0.483CysPhe: 0.483 ± 0.018	0.799CysGly: 0.799 ± 0.056	0.183CysHis: 0.183 ± 0.014	0.608CysIle: 0.608 ± 0.023	0.541CysLys: 0.541 ± 0.024	0.687CysLeu: 0.687 ± 0.025	0.169CysMet: 0.169 ± 0.011	0.449CysAsn: 0.449 ± 0.026	0.386CysPro: 0.386 ± 0.025	0.338CysGln: 0.338 ± 0.024	0.258CysArg: 0.258 ± 0.015	0.623CysSer: 0.623 ± 0.027	0.471CysThr: 0.471 ± 0.03	0.53CysVal: 0.53 ± 0.026	0.094CysTrp: 0.094 ± 0.01	0.296CysTyr: 0.296 ± 0.017	0.0CysXaa: 0.0 ± 0.0
Asp	3.429AspAla: 3.429 ± 0.058	0.407AspCys: 0.407 ± 0.021	2.228AspAsp: 2.228 ± 0.045	3.245AspGlu: 3.245 ± 0.051	3.73AspPhe: 3.73 ± 0.077	3.606AspGly: 3.606 ± 0.068	0.832AspHis: 0.832 ± 0.031	4.112AspIle: 4.112 ± 0.063	4.013AspLys: 4.013 ± 0.073	5.273AspLeu: 5.273 ± 0.078	1.098AspMet: 1.098 ± 0.032	2.643AspAsn: 2.643 ± 0.05	1.813AspPro: 1.813 ± 0.038	1.539AspGln: 1.539 ± 0.039	1.707AspArg: 1.707 ± 0.041	3.066AspSer: 3.066 ± 0.056	2.325AspThr: 2.325 ± 0.05	2.877AspVal: 2.877 ± 0.053	0.82AspTrp: 0.82 ± 0.031	2.402AspTyr: 2.402 ± 0.042	0.0AspXaa: 0.0 ± 0.0
Glu	3.982GluAla: 3.982 ± 0.072	0.371GluCys: 0.371 ± 0.017	2.954GluAsp: 2.954 ± 0.052	4.171GluGlu: 4.171 ± 0.104	2.929GluPhe: 2.929 ± 0.048	3.64GluGly: 3.64 ± 0.068	0.996GluHis: 0.996 ± 0.032	5.989GluIle: 5.989 ± 0.087	6.319GluLys: 6.319 ± 0.089	5.611GluLeu: 5.611 ± 0.081	1.663GluMet: 1.663 ± 0.045	4.81GluAsn: 4.81 ± 0.081	1.631GluPro: 1.631 ± 0.037	1.844GluGln: 1.844 ± 0.042	2.202GluArg: 2.202 ± 0.05	3.405GluSer: 3.405 ± 0.06	3.343GluThr: 3.343 ± 0.049	4.037GluVal: 4.037 ± 0.061	0.67GluTrp: 0.67 ± 0.027	2.232GluTyr: 2.232 ± 0.05	0.0GluXaa: 0.0 ± 0.0
Phe	3.277PheAla: 3.277 ± 0.049	0.506PheCys: 0.506 ± 0.021	3.394PheAsp: 3.394 ± 0.056	3.975PheGlu: 3.975 ± 0.065	3.093PhePhe: 3.093 ± 0.069	4.299PheGly: 4.299 ± 0.068	0.848PheHis: 0.848 ± 0.032	3.695PheIle: 3.695 ± 0.063	3.764PheLys: 3.764 ± 0.062	5.499PheLeu: 5.499 ± 0.098	1.217PheMet: 1.217 ± 0.036	3.039PheAsn: 3.039 ± 0.055	1.843PhePro: 1.843 ± 0.037	1.723PheGln: 1.723 ± 0.038	1.811PheArg: 1.811 ± 0.043	4.445PheSer: 4.445 ± 0.07	2.98PheThr: 2.98 ± 0.053	3.482PheVal: 3.482 ± 0.067	0.694PheTrp: 0.694 ± 0.025	2.193PheTyr: 2.193 ± 0.049	0.0PheXaa: 0.0 ± 0.0
Gly	4.034GlyAla: 4.034 ± 0.073	0.716GlyCys: 0.716 ± 0.046	3.141GlyAsp: 3.141 ± 0.067	3.56GlyGlu: 3.56 ± 0.057	4.112GlyPhe: 4.112 ± 0.066	5.187GlyGly: 5.187 ± 0.09	1.131GlyHis: 1.131 ± 0.037	5.712GlyIle: 5.712 ± 0.073	5.587GlyLys: 5.587 ± 0.082	6.388GlyLeu: 6.388 ± 0.087	1.675GlyMet: 1.675 ± 0.04	3.897GlyAsn: 3.897 ± 0.076	1.598GlyPro: 1.598 ± 0.047	2.298GlyGln: 2.298 ± 0.043	2.316GlyArg: 2.316 ± 0.057	4.379GlySer: 4.379 ± 0.077	4.271GlyThr: 4.271 ± 0.173	4.453GlyVal: 4.453 ± 0.076	0.878GlyTrp: 0.878 ± 0.025	2.748GlyTyr: 2.748 ± 0.05	0.0GlyXaa: 0.0 ± 0.0
His	1.012HisAla: 1.012 ± 0.029	0.172HisCys: 0.172 ± 0.011	0.724HisAsp: 0.724 ± 0.023	0.949HisGlu: 0.949 ± 0.029	1.116HisPhe: 1.116 ± 0.031	1.076HisGly: 1.076 ± 0.036	0.451HisHis: 0.451 ± 0.024	1.147HisIle: 1.147 ± 0.028	1.048HisLys: 1.048 ± 0.032	1.701HisLeu: 1.701 ± 0.039	0.274HisMet: 0.274 ± 0.016	0.85HisAsn: 0.85 ± 0.028	0.856HisPro: 0.856 ± 0.029	0.705HisGln: 0.705 ± 0.026	0.611HisArg: 0.611 ± 0.022	1.013HisSer: 1.013 ± 0.027	0.847HisThr: 0.847 ± 0.032	0.863HisVal: 0.863 ± 0.029	0.222HisTrp: 0.222 ± 0.015	0.689HisTyr: 0.689 ± 0.023	0.0HisXaa: 0.0 ± 0.0
Ile	5.074IleAla: 5.074 ± 0.083	0.83IleCys: 0.83 ± 0.035	4.483IleAsp: 4.483 ± 0.067	5.287IleGlu: 5.287 ± 0.073	4.201IlePhe: 4.201 ± 0.069	5.363IleGly: 5.363 ± 0.077	1.248IleHis: 1.248 ± 0.033	5.598IleIle: 5.598 ± 0.09	6.039IleLys: 6.039 ± 0.081	7.528IleLeu: 7.528 ± 0.099	1.447IleMet: 1.447 ± 0.041	4.65IleAsn: 4.65 ± 0.069	3.167IlePro: 3.167 ± 0.049	2.448IleGln: 2.448 ± 0.055	2.533IleArg: 2.533 ± 0.047	6.177IleSer: 6.177 ± 0.081	4.386IleThr: 4.386 ± 0.099	4.528IleVal: 4.528 ± 0.063	0.782IleTrp: 0.782 ± 0.027	2.707IleTyr: 2.707 ± 0.045	0.0IleXaa: 0.0 ± 0.0
Lys	5.127LysAla: 5.127 ± 0.07	0.396LysCys: 0.396 ± 0.019	4.214LysAsp: 4.214 ± 0.062	5.334LysGlu: 5.334 ± 0.074	3.394LysPhe: 3.394 ± 0.056	4.628LysGly: 4.628 ± 0.074	1.187LysHis: 1.187 ± 0.03	7.017LysIle: 7.017 ± 0.087	6.917LysLys: 6.917 ± 0.089	6.737LysLeu: 6.737 ± 0.094	2.299LysMet: 2.299 ± 0.045	5.789LysAsn: 5.789 ± 0.084	2.93LysPro: 2.93 ± 0.05	2.255LysGln: 2.255 ± 0.05	2.513LysArg: 2.513 ± 0.055	5.195LysSer: 5.195 ± 0.069	4.901LysThr: 4.901 ± 0.066	5.007LysVal: 5.007 ± 0.077	0.877LysTrp: 0.877 ± 0.027	3.404LysTyr: 3.404 ± 0.057	0.0LysXaa: 0.0 ± 0.0
Leu	6.324LeuAla: 6.324 ± 0.091	0.67LeuCys: 0.67 ± 0.025	4.934LeuAsp: 4.934 ± 0.067	6.043LeuGlu: 6.043 ± 0.082	4.943LeuPhe: 4.943 ± 0.094	6.371LeuGly: 6.371 ± 0.083	1.387LeuHis: 1.387 ± 0.036	7.037LeuIle: 7.037 ± 0.09	8.147LeuLys: 8.147 ± 0.099	8.506LeuLeu: 8.506 ± 0.117	2.144LeuMet: 2.144 ± 0.049	5.708LeuAsn: 5.708 ± 0.07	3.76LeuPro: 3.76 ± 0.059	2.856LeuGln: 2.856 ± 0.05	3.128LeuArg: 3.128 ± 0.052	6.964LeuSer: 6.964 ± 0.073	4.924LeuThr: 4.924 ± 0.074	5.641LeuVal: 5.641 ± 0.082	0.856LeuTrp: 0.856 ± 0.029	2.769LeuTyr: 2.769 ± 0.051	0.0LeuXaa: 0.0 ± 0.0
Met	1.786MetAla: 1.786 ± 0.04	0.155MetCys: 0.155 ± 0.012	1.2MetAsp: 1.2 ± 0.033	1.397MetGlu: 1.397 ± 0.037	1.01MetPhe: 1.01 ± 0.032	1.677MetGly: 1.677 ± 0.042	0.429MetHis: 0.429 ± 0.019	1.502MetIle: 1.502 ± 0.042	2.235MetLys: 2.235 ± 0.045	2.023MetLeu: 2.023 ± 0.046	0.636MetMet: 0.636 ± 0.023	1.259MetAsn: 1.259 ± 0.032	1.041MetPro: 1.041 ± 0.03	0.782MetGln: 0.782 ± 0.025	0.844MetArg: 0.844 ± 0.029	1.465MetSer: 1.465 ± 0.034	1.165MetThr: 1.165 ± 0.032	1.5MetVal: 1.5 ± 0.04	0.216MetTrp: 0.216 ± 0.013	0.643MetTyr: 0.643 ± 0.025	0.0MetXaa: 0.0 ± 0.0
Asn	3.833AsnAla: 3.833 ± 0.065	0.516AsnCys: 0.516 ± 0.027	2.786AsnAsp: 2.786 ± 0.059	3.408AsnGlu: 3.408 ± 0.057	3.375AsnPhe: 3.375 ± 0.053	4.267AsnGly: 4.267 ± 0.088	1.05AsnHis: 1.05 ± 0.028	5.032AsnIle: 5.032 ± 0.063	4.229AsnLys: 4.229 ± 0.064	5.886AsnLeu: 5.886 ± 0.078	1.266AsnMet: 1.266 ± 0.033	3.673AsnAsn: 3.673 ± 0.073	3.002AsnPro: 3.002 ± 0.056	2.505AsnGln: 2.505 ± 0.057	2.081AsnArg: 2.081 ± 0.046	4.311AsnSer: 4.311 ± 0.079	3.464AsnThr: 3.464 ± 0.074	3.295AsnVal: 3.295 ± 0.061	0.791AsnTrp: 0.791 ± 0.026	2.734AsnTyr: 2.734 ± 0.053	0.0AsnXaa: 0.0 ± 0.0
Pro	2.319ProAla: 2.319 ± 0.052	0.217ProCys: 0.217 ± 0.016	2.05ProAsp: 2.05 ± 0.05	2.767ProGlu: 2.767 ± 0.052	2.025ProPhe: 2.025 ± 0.045	2.105ProGly: 2.105 ± 0.048	0.628ProHis: 0.628 ± 0.021	2.872ProIle: 2.872 ± 0.052	2.835ProLys: 2.835 ± 0.05	3.042ProLeu: 3.042 ± 0.053	0.83ProMet: 0.83 ± 0.024	2.567ProAsn: 2.567 ± 0.055	0.964ProPro: 0.964 ± 0.034	1.173ProGln: 1.173 ± 0.032	0.957ProArg: 0.957 ± 0.028	2.5ProSer: 2.5 ± 0.049	2.185ProThr: 2.185 ± 0.063	2.382ProVal: 2.382 ± 0.054	0.4ProTrp: 0.4 ± 0.021	1.399ProTyr: 1.399 ± 0.035	0.0ProXaa: 0.0 ± 0.0
Gln	2.027GlnAla: 2.027 ± 0.045	0.175GlnCys: 0.175 ± 0.011	1.366GlnAsp: 1.366 ± 0.031	1.887GlnGlu: 1.887 ± 0.04	1.641GlnPhe: 1.641 ± 0.038	1.736GlnGly: 1.736 ± 0.042	0.496GlnHis: 0.496 ± 0.018	2.957GlnIle: 2.957 ± 0.049	3.314GlnLys: 3.314 ± 0.061	2.835GlnLeu: 2.835 ± 0.057	0.861GlnMet: 0.861 ± 0.028	2.53GlnAsn: 2.53 ± 0.05	1.098GlnPro: 1.098 ± 0.028	1.167GlnGln: 1.167 ± 0.033	1.128GlnArg: 1.128 ± 0.033	2.069GlnSer: 2.069 ± 0.045	2.046GlnThr: 2.046 ± 0.041	1.883GlnVal: 1.883 ± 0.038	0.365GlnTrp: 0.365 ± 0.02	1.239GlnTyr: 1.239 ± 0.034	0.0GlnXaa: 0.0 ± 0.0
Arg	1.952ArgAla: 1.952 ± 0.047	0.231ArgCys: 0.231 ± 0.021	1.629ArgAsp: 1.629 ± 0.047	1.954ArgGlu: 1.954 ± 0.047	1.913ArgPhe: 1.913 ± 0.049	1.974ArgGly: 1.974 ± 0.044	0.527ArgHis: 0.527 ± 0.021	2.896ArgIle: 2.896 ± 0.047	2.808ArgLys: 2.808 ± 0.047	3.105ArgLeu: 3.105 ± 0.056	0.99ArgMet: 0.99 ± 0.029	2.085ArgAsn: 2.085 ± 0.049	1.168ArgPro: 1.168 ± 0.032	1.07ArgGln: 1.07 ± 0.033	1.307ArgArg: 1.307 ± 0.037	1.797ArgSer: 1.797 ± 0.041	1.8ArgThr: 1.8 ± 0.044	1.988ArgVal: 1.988 ± 0.044	0.408ArgTrp: 0.408 ± 0.017	1.296ArgTyr: 1.296 ± 0.034	0.0ArgXaa: 0.0 ± 0.0
Ser	4.184SerAla: 4.184 ± 0.073	0.712SerCys: 0.712 ± 0.034	3.404SerAsp: 3.404 ± 0.054	4.117SerGlu: 4.117 ± 0.059	4.057SerPhe: 4.057 ± 0.065	5.076SerGly: 5.076 ± 0.09	1.136SerHis: 1.136 ± 0.032	5.214SerIle: 5.214 ± 0.071	5.37SerLys: 5.37 ± 0.075	6.399SerLeu: 6.399 ± 0.076	1.377SerMet: 1.377 ± 0.034	4.115SerAsn: 4.115 ± 0.109	2.546SerPro: 2.546 ± 0.056	2.299SerGln: 2.299 ± 0.043	2.15SerArg: 2.15 ± 0.044	4.639SerSer: 4.639 ± 0.086	3.81SerThr: 3.81 ± 0.094	4.201SerVal: 4.201 ± 0.064	0.768SerTrp: 0.768 ± 0.028	2.536SerTyr: 2.536 ± 0.048	0.0SerXaa: 0.0 ± 0.0
Thr	3.877ThrAla: 3.877 ± 0.146	0.48ThrCys: 0.48 ± 0.039	2.876ThrAsp: 2.876 ± 0.055	3.288ThrGlu: 3.288 ± 0.054	3.084ThrPhe: 3.084 ± 0.065	4.061ThrGly: 4.061 ± 0.093	0.954ThrHis: 0.954 ± 0.029	4.327ThrIle: 4.327 ± 0.103	4.011ThrLys: 4.011 ± 0.073	5.242ThrLeu: 5.242 ± 0.08	1.009ThrMet: 1.009 ± 0.032	3.306ThrAsn: 3.306 ± 0.084	2.376ThrPro: 2.376 ± 0.071	1.789ThrGln: 1.789 ± 0.041	1.518ThrArg: 1.518 ± 0.034	3.81ThrSer: 3.81 ± 0.097	3.222ThrThr: 3.222 ± 0.098	3.516ThrVal: 3.516 ± 0.098	0.749ThrTrp: 0.749 ± 0.036	2.261ThrTyr: 2.261 ± 0.067	0.0ThrXaa: 0.0 ± 0.0
Val	4.13ValAla: 4.13 ± 0.078	0.651ValCys: 0.651 ± 0.03	3.16ValAsp: 3.16 ± 0.047	3.847ValGlu: 3.847 ± 0.061	3.854ValPhe: 3.854 ± 0.065	4.319ValGly: 4.319 ± 0.086	0.892ValHis: 0.892 ± 0.026	4.416ValIle: 4.416 ± 0.068	4.495ValLys: 4.495 ± 0.068	5.827ValLeu: 5.827 ± 0.078	1.352ValMet: 1.352 ± 0.035	3.586ValAsn: 3.586 ± 0.058	2.237ValPro: 2.237 ± 0.042	1.571ValGln: 1.571 ± 0.037	1.957ValArg: 1.957 ± 0.041	4.514ValSer: 4.514 ± 0.067	3.07ValThr: 3.07 ± 0.093	4.243ValVal: 4.243 ± 0.071	0.697ValTrp: 0.697 ± 0.025	2.243ValTyr: 2.243 ± 0.043	0.0ValXaa: 0.0 ± 0.0
Trp	0.698TrpAla: 0.698 ± 0.025	0.086TrpCys: 0.086 ± 0.009	0.626TrpAsp: 0.626 ± 0.023	0.724TrpGlu: 0.724 ± 0.025	0.581TrpPhe: 0.581 ± 0.023	0.825TrpGly: 0.825 ± 0.028	0.24TrpHis: 0.24 ± 0.014	0.805TrpIle: 0.805 ± 0.029	0.903TrpLys: 0.903 ± 0.029	1.051TrpLeu: 1.051 ± 0.03	0.349TrpMet: 0.349 ± 0.018	0.676TrpAsn: 0.676 ± 0.026	0.299TrpPro: 0.299 ± 0.017	0.46TrpGln: 0.46 ± 0.022	0.458TrpArg: 0.458 ± 0.023	0.834TrpSer: 0.834 ± 0.042	0.633TrpThr: 0.633 ± 0.026	0.754TrpVal: 0.754 ± 0.024	0.183TrpTrp: 0.183 ± 0.016	0.434TrpTyr: 0.434 ± 0.022	0.0TrpXaa: 0.0 ± 0.0
Tyr	2.336TyrAla: 2.336 ± 0.043	0.354TyrCys: 0.354 ± 0.015	2.113TyrAsp: 2.113 ± 0.045	2.12TyrGlu: 2.12 ± 0.047	2.678TyrPhe: 2.678 ± 0.048	2.553TyrGly: 2.553 ± 0.049	0.708TyrHis: 0.708 ± 0.028	2.359TyrIle: 2.359 ± 0.046	2.724TyrLys: 2.724 ± 0.048	3.935TyrLeu: 3.935 ± 0.064	0.73TyrMet: 0.73 ± 0.024	2.197TyrAsn: 2.197 ± 0.05	1.459TyrPro: 1.459 ± 0.037	1.543TyrGln: 1.543 ± 0.04	1.458TyrArg: 1.458 ± 0.035	2.665TyrSer: 2.665 ± 0.05	2.157TyrThr: 2.157 ± 0.065	2.027TyrVal: 2.027 ± 0.043	0.482TyrTrp: 0.482 ± 0.021	1.721TyrTyr: 1.721 ± 0.042	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 3514 proteins (1214332 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

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

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