Amino acid dipepetide frequency for Rhodovulum sp. ES.010

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	20.496AlaAla: 20.496 ± 0.228	1.226AlaCys: 1.226 ± 0.04	7.535AlaAsp: 7.535 ± 0.094	9.833AlaGlu: 9.833 ± 0.13	4.538AlaPhe: 4.538 ± 0.07	12.364AlaGly: 12.364 ± 0.144	2.584AlaHis: 2.584 ± 0.052	5.746AlaIle: 5.746 ± 0.079	3.028AlaLys: 3.028 ± 0.056	15.767AlaLeu: 15.767 ± 0.167	3.899AlaMet: 3.899 ± 0.076	2.444AlaAsn: 2.444 ± 0.047	7.272AlaPro: 7.272 ± 0.124	4.075AlaGln: 4.075 ± 0.06	11.569AlaArg: 11.569 ± 0.126	5.056AlaSer: 5.056 ± 0.072	6.199AlaThr: 6.199 ± 0.078	9.231AlaVal: 9.231 ± 0.107	1.724AlaTrp: 1.724 ± 0.044	2.605AlaTyr: 2.605 ± 0.05	0.0AlaXaa: 0.0 ± 0.0
Cys	1.188CysAla: 1.188 ± 0.036	0.116CysCys: 0.116 ± 0.011	0.594CysAsp: 0.594 ± 0.027	0.458CysGlu: 0.458 ± 0.02	0.274CysPhe: 0.274 ± 0.017	0.918CysGly: 0.918 ± 0.029	0.266CysHis: 0.266 ± 0.017	0.379CysIle: 0.379 ± 0.018	0.17CysLys: 0.17 ± 0.012	0.875CysLeu: 0.875 ± 0.026	0.146CysMet: 0.146 ± 0.011	0.175CysAsn: 0.175 ± 0.013	0.57CysPro: 0.57 ± 0.024	0.22CysGln: 0.22 ± 0.017	0.649CysArg: 0.649 ± 0.025	0.378CysSer: 0.378 ± 0.017	0.431CysThr: 0.431 ± 0.023	0.616CysVal: 0.616 ± 0.022	0.125CysTrp: 0.125 ± 0.01	0.219CysTyr: 0.219 ± 0.013	0.0CysXaa: 0.0 ± 0.0
Asp	7.734AspAla: 7.734 ± 0.112	0.528AspCys: 0.528 ± 0.021	3.219AspAsp: 3.219 ± 0.065	3.758AspGlu: 3.758 ± 0.062	2.227AspPhe: 2.227 ± 0.045	5.549AspGly: 5.549 ± 0.084	1.308AspHis: 1.308 ± 0.032	2.85AspIle: 2.85 ± 0.05	1.319AspLys: 1.319 ± 0.04	6.526AspLeu: 6.526 ± 0.091	1.544AspMet: 1.544 ± 0.039	1.039AspAsn: 1.039 ± 0.034	3.965AspPro: 3.965 ± 0.073	1.514AspGln: 1.514 ± 0.034	5.15AspArg: 5.15 ± 0.072	2.076AspSer: 2.076 ± 0.048	2.729AspThr: 2.729 ± 0.046	3.878AspVal: 3.878 ± 0.05	1.221AspTrp: 1.221 ± 0.032	1.526AspTyr: 1.526 ± 0.037	0.0AspXaa: 0.0 ± 0.0
Glu	9.398GluAla: 9.398 ± 0.116	0.375GluCys: 0.375 ± 0.016	3.532GluAsp: 3.532 ± 0.063	3.902GluGlu: 3.902 ± 0.081	1.814GluPhe: 1.814 ± 0.042	5.431GluGly: 5.431 ± 0.07	1.097GluHis: 1.097 ± 0.035	3.808GluIle: 3.808 ± 0.064	1.958GluLys: 1.958 ± 0.048	5.139GluLeu: 5.139 ± 0.085	1.923GluMet: 1.923 ± 0.044	1.57GluAsn: 1.57 ± 0.036	2.712GluPro: 2.712 ± 0.055	1.635GluGln: 1.635 ± 0.046	4.972GluArg: 4.972 ± 0.072	2.329GluSer: 2.329 ± 0.049	4.28GluThr: 4.28 ± 0.065	4.623GluVal: 4.623 ± 0.066	0.652GluTrp: 0.652 ± 0.024	0.956GluTyr: 0.956 ± 0.033	0.0GluXaa: 0.0 ± 0.0
Phe	4.54PheAla: 4.54 ± 0.066	0.385PheCys: 0.385 ± 0.017	2.736PheAsp: 2.736 ± 0.053	2.193PheGlu: 2.193 ± 0.044	1.398PhePhe: 1.398 ± 0.043	3.704PheGly: 3.704 ± 0.066	0.774PheHis: 0.774 ± 0.026	1.366PheIle: 1.366 ± 0.043	0.752PheLys: 0.752 ± 0.026	3.482PheLeu: 3.482 ± 0.069	0.752PheMet: 0.752 ± 0.027	0.846PheAsn: 0.846 ± 0.026	1.566PhePro: 1.566 ± 0.038	0.91PheGln: 0.91 ± 0.031	2.408PheArg: 2.408 ± 0.05	1.832PheSer: 1.832 ± 0.044	2.019PheThr: 2.019 ± 0.046	2.679PheVal: 2.679 ± 0.056	0.532PheTrp: 0.532 ± 0.023	0.855PheTyr: 0.855 ± 0.028	0.0PheXaa: 0.0 ± 0.0
Gly	11.644GlyAla: 11.644 ± 0.136	0.906GlyCys: 0.906 ± 0.031	4.793GlyAsp: 4.793 ± 0.079	5.182GlyGlu: 5.182 ± 0.073	3.651GlyPhe: 3.651 ± 0.058	7.916GlyGly: 7.916 ± 0.106	2.019GlyHis: 2.019 ± 0.049	4.071GlyIle: 4.071 ± 0.067	2.635GlyLys: 2.635 ± 0.06	10.104GlyLeu: 10.104 ± 0.127	2.58GlyMet: 2.58 ± 0.053	1.782GlyAsn: 1.782 ± 0.049	4.404GlyPro: 4.404 ± 0.07	2.955GlyGln: 2.955 ± 0.047	7.199GlyArg: 7.199 ± 0.088	3.814GlySer: 3.814 ± 0.077	4.762GlyThr: 4.762 ± 0.064	6.569GlyVal: 6.569 ± 0.072	1.589GlyTrp: 1.589 ± 0.047	2.177GlyTyr: 2.177 ± 0.05	0.0GlyXaa: 0.0 ± 0.0
His	2.589HisAla: 2.589 ± 0.058	0.209HisCys: 0.209 ± 0.012	1.26HisAsp: 1.26 ± 0.039	1.103HisGlu: 1.103 ± 0.033	0.775HisPhe: 0.775 ± 0.029	2.041HisGly: 2.041 ± 0.052	0.485HisHis: 0.485 ± 0.023	0.809HisIle: 0.809 ± 0.031	0.403HisLys: 0.403 ± 0.019	2.12HisLeu: 2.12 ± 0.046	0.515HisMet: 0.515 ± 0.023	0.39HisAsn: 0.39 ± 0.018	1.408HisPro: 1.408 ± 0.038	0.449HisGln: 0.449 ± 0.021	1.563HisArg: 1.563 ± 0.038	0.806HisSer: 0.806 ± 0.028	0.744HisThr: 0.744 ± 0.029	1.624HisVal: 1.624 ± 0.044	0.34HisTrp: 0.34 ± 0.02	0.528HisTyr: 0.528 ± 0.021	0.0HisXaa: 0.0 ± 0.0
Ile	6.837IleAla: 6.837 ± 0.08	0.504IleCys: 0.504 ± 0.021	3.21IleAsp: 3.21 ± 0.051	3.342IleGlu: 3.342 ± 0.062	1.459IlePhe: 1.459 ± 0.04	4.564IleGly: 4.564 ± 0.064	0.825IleHis: 0.825 ± 0.029	1.486IleIle: 1.486 ± 0.041	0.992IleLys: 0.992 ± 0.034	4.295IleLeu: 4.295 ± 0.075	0.847IleMet: 0.847 ± 0.029	0.985IleAsn: 0.985 ± 0.03	2.181IlePro: 2.181 ± 0.041	0.932IleGln: 0.932 ± 0.03	3.243IleArg: 3.243 ± 0.053	2.335IleSer: 2.335 ± 0.049	2.267IleThr: 2.267 ± 0.047	3.668IleVal: 3.668 ± 0.063	0.592IleTrp: 0.592 ± 0.021	0.976IleTyr: 0.976 ± 0.027	0.0IleXaa: 0.0 ± 0.0
Lys	3.427LysAla: 3.427 ± 0.063	0.17LysCys: 0.17 ± 0.011	1.42LysAsp: 1.42 ± 0.039	1.275LysGlu: 1.275 ± 0.039	0.662LysPhe: 0.662 ± 0.025	2.267LysGly: 2.267 ± 0.051	0.511LysHis: 0.511 ± 0.02	1.206LysIle: 1.206 ± 0.032	0.916LysLys: 0.916 ± 0.036	2.43LysLeu: 2.43 ± 0.057	0.644LysMet: 0.644 ± 0.025	0.577LysAsn: 0.577 ± 0.025	1.539LysPro: 1.539 ± 0.038	0.644LysGln: 0.644 ± 0.022	2.062LysArg: 2.062 ± 0.047	1.425LysSer: 1.425 ± 0.035	1.599LysThr: 1.599 ± 0.043	1.941LysVal: 1.941 ± 0.051	0.316LysTrp: 0.316 ± 0.018	0.535LysTyr: 0.535 ± 0.02	0.0LysXaa: 0.0 ± 0.0
Leu	15.144LeuAla: 15.144 ± 0.164	0.969LeuCys: 0.969 ± 0.032	6.541LeuAsp: 6.541 ± 0.074	5.513LeuGlu: 5.513 ± 0.075	3.626LeuPhe: 3.626 ± 0.073	9.218LeuGly: 9.218 ± 0.101	1.909LeuHis: 1.909 ± 0.046	4.674LeuIle: 4.674 ± 0.077	2.801LeuLys: 2.801 ± 0.057	8.941LeuLeu: 8.941 ± 0.137	2.563LeuMet: 2.563 ± 0.05	2.233LeuAsn: 2.233 ± 0.049	5.776LeuPro: 5.776 ± 0.075	2.447LeuGln: 2.447 ± 0.049	7.581LeuArg: 7.581 ± 0.087	6.081LeuSer: 6.081 ± 0.082	5.775LeuThr: 5.775 ± 0.076	7.543LeuVal: 7.543 ± 0.105	1.365LeuTrp: 1.365 ± 0.042	1.973LeuTyr: 1.973 ± 0.045	0.0LeuXaa: 0.0 ± 0.0
Met	3.603MetAla: 3.603 ± 0.071	0.159MetCys: 0.159 ± 0.012	1.237MetAsp: 1.237 ± 0.036	1.425MetGlu: 1.425 ± 0.033	0.738MetPhe: 0.738 ± 0.027	2.28MetGly: 2.28 ± 0.049	0.453MetHis: 0.453 ± 0.021	1.302MetIle: 1.302 ± 0.04	0.864MetLys: 0.864 ± 0.029	2.48MetLeu: 2.48 ± 0.046	0.659MetMet: 0.659 ± 0.025	0.699MetAsn: 0.699 ± 0.025	1.516MetPro: 1.516 ± 0.038	0.841MetGln: 0.841 ± 0.026	1.977MetArg: 1.977 ± 0.043	1.515MetSer: 1.515 ± 0.043	1.878MetThr: 1.878 ± 0.044	1.791MetVal: 1.791 ± 0.038	0.218MetTrp: 0.218 ± 0.014	0.297MetTyr: 0.297 ± 0.017	0.0MetXaa: 0.0 ± 0.0
Asn	2.864AsnAla: 2.864 ± 0.055	0.221AsnCys: 0.221 ± 0.016	1.096AsnAsp: 1.096 ± 0.033	1.013AsnGlu: 1.013 ± 0.027	0.714AsnPhe: 0.714 ± 0.026	1.98AsnGly: 1.98 ± 0.053	0.394AsnHis: 0.394 ± 0.018	1.033AsnIle: 1.033 ± 0.033	0.443AsnLys: 0.443 ± 0.023	2.143AsnLeu: 2.143 ± 0.042	0.549AsnMet: 0.549 ± 0.026	0.449AsnAsn: 0.449 ± 0.021	1.643AsnPro: 1.643 ± 0.042	0.476AsnGln: 0.476 ± 0.019	1.694AsnArg: 1.694 ± 0.039	0.845AsnSer: 0.845 ± 0.03	1.005AsnThr: 1.005 ± 0.027	1.646AsnVal: 1.646 ± 0.039	0.352AsnTrp: 0.352 ± 0.019	0.523AsnTyr: 0.523 ± 0.023	0.0AsnXaa: 0.0 ± 0.0
Pro	7.257ProAla: 7.257 ± 0.119	0.406ProCys: 0.406 ± 0.02	4.327ProAsp: 4.327 ± 0.078	4.618ProGlu: 4.618 ± 0.07	1.959ProPhe: 1.959 ± 0.041	5.457ProGly: 5.457 ± 0.076	1.108ProHis: 1.108 ± 0.034	1.976ProIle: 1.976 ± 0.04	1.351ProLys: 1.351 ± 0.031	4.94ProLeu: 4.94 ± 0.062	1.31ProMet: 1.31 ± 0.034	1.062ProAsn: 1.062 ± 0.033	2.994ProPro: 2.994 ± 0.073	1.479ProGln: 1.479 ± 0.034	3.632ProArg: 3.632 ± 0.07	2.242ProSer: 2.242 ± 0.043	2.311ProThr: 2.311 ± 0.047	4.536ProVal: 4.536 ± 0.065	0.744ProTrp: 0.744 ± 0.029	1.142ProTyr: 1.142 ± 0.037	0.0ProXaa: 0.0 ± 0.0
Gln	3.795GlnAla: 3.795 ± 0.061	0.181GlnCys: 0.181 ± 0.013	1.454GlnAsp: 1.454 ± 0.038	1.44GlnGlu: 1.44 ± 0.037	0.874GlnPhe: 0.874 ± 0.03	2.364GlnGly: 2.364 ± 0.046	0.451GlnHis: 0.451 ± 0.023	1.53GlnIle: 1.53 ± 0.038	0.877GlnLys: 0.877 ± 0.03	2.322GlnLeu: 2.322 ± 0.049	0.832GlnMet: 0.832 ± 0.026	0.644GlnAsn: 0.644 ± 0.027	1.488GlnPro: 1.488 ± 0.035	0.85GlnGln: 0.85 ± 0.043	2.068GlnArg: 2.068 ± 0.047	1.395GlnSer: 1.395 ± 0.037	1.517GlnThr: 1.517 ± 0.036	2.219GlnVal: 2.219 ± 0.046	0.339GlnTrp: 0.339 ± 0.019	0.498GlnTyr: 0.498 ± 0.02	0.0GlnXaa: 0.0 ± 0.0
Arg	10.512ArgAla: 10.512 ± 0.115	0.548ArgCys: 0.548 ± 0.024	4.528ArgAsp: 4.528 ± 0.073	4.468ArgGlu: 4.468 ± 0.071	3.047ArgPhe: 3.047 ± 0.051	5.584ArgGly: 5.584 ± 0.076	1.826ArgHis: 1.826 ± 0.046	3.874ArgIle: 3.874 ± 0.059	2.17ArgLys: 2.17 ± 0.054	9.024ArgLeu: 9.024 ± 0.1	2.171ArgMet: 2.171 ± 0.046	1.641ArgAsn: 1.641 ± 0.038	4.415ArgPro: 4.415 ± 0.068	2.224ArgGln: 2.224 ± 0.047	6.573ArgArg: 6.573 ± 0.105	3.071ArgSer: 3.071 ± 0.047	3.328ArgThr: 3.328 ± 0.066	5.544ArgVal: 5.544 ± 0.07	1.028ArgTrp: 1.028 ± 0.03	1.621ArgTyr: 1.621 ± 0.04	0.0ArgXaa: 0.0 ± 0.0
Ser	5.531SerAla: 5.531 ± 0.082	0.371SerCys: 0.371 ± 0.021	2.82SerAsp: 2.82 ± 0.049	2.643SerGlu: 2.643 ± 0.058	1.968SerPhe: 1.968 ± 0.049	4.88SerGly: 4.88 ± 0.076	0.948SerHis: 0.948 ± 0.032	1.923SerIle: 1.923 ± 0.049	1.064SerLys: 1.064 ± 0.036	4.349SerLeu: 4.349 ± 0.065	1.096SerMet: 1.096 ± 0.029	0.964SerAsn: 0.964 ± 0.027	2.414SerPro: 2.414 ± 0.05	1.273SerGln: 1.273 ± 0.038	3.22SerArg: 3.22 ± 0.055	2.036SerSer: 2.036 ± 0.051	2.17SerThr: 2.17 ± 0.046	3.379SerVal: 3.379 ± 0.059	0.623SerTrp: 0.623 ± 0.024	1.084SerTyr: 1.084 ± 0.031	0.0SerXaa: 0.0 ± 0.0
Thr	6.389ThrAla: 6.389 ± 0.091	0.502ThrCys: 0.502 ± 0.02	2.962ThrAsp: 2.962 ± 0.051	3.037ThrGlu: 3.037 ± 0.051	1.783ThrPhe: 1.783 ± 0.038	5.526ThrGly: 5.526 ± 0.076	1.073ThrHis: 1.073 ± 0.032	2.282ThrIle: 2.282 ± 0.049	1.081ThrLys: 1.081 ± 0.034	6.061ThrLeu: 6.061 ± 0.075	1.152ThrMet: 1.152 ± 0.03	1.059ThrAsn: 1.059 ± 0.029	3.359ThrPro: 3.359 ± 0.049	1.291ThrGln: 1.291 ± 0.034	3.847ThrArg: 3.847 ± 0.059	2.118ThrSer: 2.118 ± 0.047	2.51ThrThr: 2.51 ± 0.058	4.207ThrVal: 4.207 ± 0.07	0.704ThrTrp: 0.704 ± 0.03	1.122ThrTyr: 1.122 ± 0.036	0.0ThrXaa: 0.0 ± 0.0
Val	10.054ValAla: 10.054 ± 0.1	0.636ValCys: 0.636 ± 0.025	4.1ValAsp: 4.1 ± 0.06	4.914ValGlu: 4.914 ± 0.069	2.857ValPhe: 2.857 ± 0.059	5.524ValGly: 5.524 ± 0.075	1.333ValHis: 1.333 ± 0.033	3.784ValIle: 3.784 ± 0.063	1.88ValLys: 1.88 ± 0.052	7.841ValLeu: 7.841 ± 0.096	1.901ValMet: 1.901 ± 0.049	1.679ValAsn: 1.679 ± 0.043	3.875ValPro: 3.875 ± 0.059	1.82ValGln: 1.82 ± 0.042	4.876ValArg: 4.876 ± 0.067	3.769ValSer: 3.769 ± 0.062	4.721ValThr: 4.721 ± 0.063	5.847ValVal: 5.847 ± 0.084	0.986ValTrp: 0.986 ± 0.03	1.509ValTyr: 1.509 ± 0.034	0.0ValXaa: 0.0 ± 0.0
Trp	1.588TrpAla: 1.588 ± 0.043	0.138TrpCys: 0.138 ± 0.012	0.748TrpAsp: 0.748 ± 0.027	0.708TrpGlu: 0.708 ± 0.027	0.528TrpPhe: 0.528 ± 0.022	1.068TrpGly: 1.068 ± 0.032	0.327TrpHis: 0.327 ± 0.016	0.633TrpIle: 0.633 ± 0.025	0.401TrpLys: 0.401 ± 0.019	1.703TrpLeu: 1.703 ± 0.041	0.371TrpMet: 0.371 ± 0.018	0.34TrpAsn: 0.34 ± 0.019	0.741TrpPro: 0.741 ± 0.028	0.553TrpGln: 0.553 ± 0.023	1.268TrpArg: 1.268 ± 0.033	0.704TrpSer: 0.704 ± 0.028	0.785TrpThr: 0.785 ± 0.032	0.916TrpVal: 0.916 ± 0.032	0.218TrpTrp: 0.218 ± 0.015	0.26TrpTyr: 0.26 ± 0.016	0.0TrpXaa: 0.0 ± 0.0
Tyr	2.602TyrAla: 2.602 ± 0.051	0.217TyrCys: 0.217 ± 0.014	1.548TyrAsp: 1.548 ± 0.041	1.278TyrGlu: 1.278 ± 0.037	0.836TyrPhe: 0.836 ± 0.031	2.118TyrGly: 2.118 ± 0.044	0.475TyrHis: 0.475 ± 0.021	0.807TyrIle: 0.807 ± 0.025	0.461TyrLys: 0.461 ± 0.022	2.131TyrLeu: 2.131 ± 0.041	0.475TyrMet: 0.475 ± 0.02	0.504TyrAsn: 0.504 ± 0.024	1.018TyrPro: 1.018 ± 0.031	0.553TyrGln: 0.553 ± 0.024	1.645TyrArg: 1.645 ± 0.036	0.927TyrSer: 0.927 ± 0.033	1.034TyrThr: 1.034 ± 0.032	1.448TyrVal: 1.448 ± 0.038	0.329TyrTrp: 0.329 ± 0.018	0.525TyrTyr: 0.525 ± 0.024	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 3606 proteins (1120362 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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