Amino acid dipepetide frequency for Octodon degus (Degu) (Sciurus degus)

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	7.152AlaAla: 7.152 ± 0.039	1.433AlaCys: 1.433 ± 0.011	3.006AlaAsp: 3.006 ± 0.01	5.058AlaGlu: 5.058 ± 0.03	2.581AlaPhe: 2.581 ± 0.018	4.849AlaGly: 4.849 ± 0.024	1.633AlaHis: 1.633 ± 0.009	2.697AlaIle: 2.697 ± 0.015	3.625AlaLys: 3.625 ± 0.037	7.335AlaLeu: 7.335 ± 0.035	1.506AlaMet: 1.506 ± 0.009	1.982AlaAsn: 1.982 ± 0.009	4.508AlaPro: 4.508 ± 0.025	3.551AlaGln: 3.551 ± 0.02	3.868AlaArg: 3.868 ± 0.016	6.141AlaSer: 6.141 ± 0.024	3.783AlaThr: 3.783 ± 0.017	4.778AlaVal: 4.778 ± 0.018	0.816AlaTrp: 0.816 ± 0.007	1.527AlaTyr: 1.527 ± 0.011	0.006AlaXaa: 0.006 ± 0.001
Cys	1.314CysAla: 1.314 ± 0.013	0.641CysCys: 0.641 ± 0.011	0.963CysAsp: 0.963 ± 0.009	1.251CysGlu: 1.251 ± 0.013	0.795CysPhe: 0.795 ± 0.008	1.699CysGly: 1.699 ± 0.018	0.657CysHis: 0.657 ± 0.007	0.872CysIle: 0.872 ± 0.008	1.137CysLys: 1.137 ± 0.013	2.053CysLeu: 2.053 ± 0.016	0.406CysMet: 0.406 ± 0.005	0.709CysAsn: 0.709 ± 0.007	1.334CysPro: 1.334 ± 0.016	1.082CysGln: 1.082 ± 0.011	1.298CysArg: 1.298 ± 0.011	1.979CysSer: 1.979 ± 0.017	1.113CysThr: 1.113 ± 0.011	1.306CysVal: 1.306 ± 0.012	0.274CysTrp: 0.274 ± 0.003	0.558CysTyr: 0.558 ± 0.006	0.002CysXaa: 0.002 ± 0.0
Asp	2.992AspAla: 2.992 ± 0.015	1.014AspCys: 1.014 ± 0.01	2.484AspAsp: 2.484 ± 0.014	3.33AspGlu: 3.33 ± 0.017	2.013AspPhe: 2.013 ± 0.012	3.288AspGly: 3.288 ± 0.024	1.117AspHis: 1.117 ± 0.008	2.498AspIle: 2.498 ± 0.016	2.496AspLys: 2.496 ± 0.015	5.027AspLeu: 5.027 ± 0.021	1.121AspMet: 1.121 ± 0.01	1.569AspAsn: 1.569 ± 0.01	2.99AspPro: 2.99 ± 0.014	1.859AspGln: 1.859 ± 0.011	2.47AspArg: 2.47 ± 0.013	4.326AspSer: 4.326 ± 0.019	2.619AspThr: 2.619 ± 0.016	3.125AspVal: 3.125 ± 0.02	0.604AspTrp: 0.604 ± 0.005	1.431AspTyr: 1.431 ± 0.014	0.003AspXaa: 0.003 ± 0.0
Glu	5.484GluAla: 5.484 ± 0.029	1.338GluCys: 1.338 ± 0.018	4.569GluAsp: 4.569 ± 0.021	8.15GluGlu: 8.15 ± 0.048	1.925GluPhe: 1.925 ± 0.01	4.324GluGly: 4.324 ± 0.022	1.547GluHis: 1.547 ± 0.01	3.017GluIle: 3.017 ± 0.024	5.417GluLys: 5.417 ± 0.037	6.562GluLeu: 6.562 ± 0.032	1.629GluMet: 1.629 ± 0.01	3.006GluAsn: 3.006 ± 0.018	3.529GluPro: 3.529 ± 0.029	3.287GluGln: 3.287 ± 0.022	4.135GluArg: 4.135 ± 0.023	4.421GluSer: 4.421 ± 0.02	3.312GluThr: 3.312 ± 0.016	4.289GluVal: 4.289 ± 0.024	0.678GluTrp: 0.678 ± 0.006	1.602GluTyr: 1.602 ± 0.022	0.003GluXaa: 0.003 ± 0.0
Phe	1.892PheAla: 1.892 ± 0.011	0.892PheCys: 0.892 ± 0.008	1.603PheAsp: 1.603 ± 0.01	1.909PheGlu: 1.909 ± 0.011	1.473PhePhe: 1.473 ± 0.012	2.053PheGly: 2.053 ± 0.013	1.003PheHis: 1.003 ± 0.007	1.674PheIle: 1.674 ± 0.012	1.639PheLys: 1.639 ± 0.011	3.881PheLeu: 3.881 ± 0.022	0.737PheMet: 0.737 ± 0.007	1.208PheAsn: 1.208 ± 0.008	1.929PhePro: 1.929 ± 0.012	1.702PheGln: 1.702 ± 0.011	1.948PheArg: 1.948 ± 0.016	3.306PheSer: 3.306 ± 0.017	1.963PheThr: 1.963 ± 0.012	2.066PheVal: 2.066 ± 0.014	0.448PheTrp: 0.448 ± 0.005	1.099PheTyr: 1.099 ± 0.008	0.003PheXaa: 0.003 ± 0.0
Gly	4.655GlyAla: 4.655 ± 0.028	1.265GlyCys: 1.265 ± 0.012	3.121GlyAsp: 3.121 ± 0.018	4.121GlyGlu: 4.121 ± 0.02	2.283GlyPhe: 2.283 ± 0.015	4.847GlyGly: 4.847 ± 0.034	1.749GlyHis: 1.749 ± 0.013	2.544GlyIle: 2.544 ± 0.012	3.729GlyLys: 3.729 ± 0.022	5.913GlyLeu: 5.913 ± 0.029	1.214GlyMet: 1.214 ± 0.009	2.246GlyAsn: 2.246 ± 0.013	4.493GlyPro: 4.493 ± 0.037	2.873GlyGln: 2.873 ± 0.018	3.766GlyArg: 3.766 ± 0.02	6.096GlySer: 6.096 ± 0.028	3.63GlyThr: 3.63 ± 0.018	3.505GlyVal: 3.505 ± 0.017	0.782GlyTrp: 0.782 ± 0.009	1.673GlyTyr: 1.673 ± 0.013	0.006GlyXaa: 0.006 ± 0.001
His	1.398HisAla: 1.398 ± 0.01	0.725HisCys: 0.725 ± 0.008	0.867HisAsp: 0.867 ± 0.006	1.374HisGlu: 1.374 ± 0.01	1.032HisPhe: 1.032 ± 0.008	1.535HisGly: 1.535 ± 0.01	0.907HisHis: 0.907 ± 0.011	1.225HisIle: 1.225 ± 0.01	1.263HisLys: 1.263 ± 0.009	2.947HisLeu: 2.947 ± 0.016	0.594HisMet: 0.594 ± 0.005	0.837HisAsn: 0.837 ± 0.007	1.692HisPro: 1.692 ± 0.01	1.345HisGln: 1.345 ± 0.013	1.626HisArg: 1.626 ± 0.012	2.385HisSer: 2.385 ± 0.015	1.572HisThr: 1.572 ± 0.013	1.551HisVal: 1.551 ± 0.01	0.33HisTrp: 0.33 ± 0.004	0.824HisTyr: 0.824 ± 0.006	0.002HisXaa: 0.002 ± 0.0
Ile	2.453IleAla: 2.453 ± 0.013	0.989IleCys: 0.989 ± 0.008	1.832IleAsp: 1.832 ± 0.013	2.486IleGlu: 2.486 ± 0.021	1.724IlePhe: 1.724 ± 0.013	2.071IleGly: 2.071 ± 0.013	1.317IleHis: 1.317 ± 0.013	2.177IleIle: 2.177 ± 0.017	2.454IleLys: 2.454 ± 0.021	4.306IleLeu: 4.306 ± 0.019	0.938IleMet: 0.938 ± 0.008	1.675IleAsn: 1.675 ± 0.011	2.573IlePro: 2.573 ± 0.011	2.215IleGln: 2.215 ± 0.013	2.274IleArg: 2.274 ± 0.015	3.566IleSer: 3.566 ± 0.017	2.452IleThr: 2.452 ± 0.024	2.387IleVal: 2.387 ± 0.019	0.457IleTrp: 0.457 ± 0.005	1.276IleTyr: 1.276 ± 0.009	0.003IleXaa: 0.003 ± 0.0
Lys	4.206LysAla: 4.206 ± 0.027	1.059LysCys: 1.059 ± 0.01	3.187LysAsp: 3.187 ± 0.026	5.029LysGlu: 5.029 ± 0.032	1.66LysPhe: 1.66 ± 0.012	3.279LysGly: 3.279 ± 0.023	1.381LysHis: 1.381 ± 0.012	2.592LysIle: 2.592 ± 0.016	4.617LysLys: 4.617 ± 0.033	5.061LysLeu: 5.061 ± 0.02	1.42LysMet: 1.42 ± 0.013	2.242LysAsn: 2.242 ± 0.014	3.179LysPro: 3.179 ± 0.029	2.623LysGln: 2.623 ± 0.017	3.246LysArg: 3.246 ± 0.016	3.88LysSer: 3.88 ± 0.022	3.031LysThr: 3.031 ± 0.022	3.459LysVal: 3.459 ± 0.027	0.587LysTrp: 0.587 ± 0.008	1.587LysTyr: 1.587 ± 0.023	0.006LysXaa: 0.006 ± 0.001
Leu	7.056LeuAla: 7.056 ± 0.027	2.142LeuCys: 2.142 ± 0.019	4.722LeuAsp: 4.722 ± 0.018	7.328LeuGlu: 7.328 ± 0.032	3.164LeuPhe: 3.164 ± 0.019	5.951LeuGly: 5.951 ± 0.03	2.821LeuHis: 2.821 ± 0.016	3.584LeuIle: 3.584 ± 0.017	5.584LeuLys: 5.584 ± 0.026	10.761LeuLeu: 10.761 ± 0.055	1.924LeuMet: 1.924 ± 0.011	3.276LeuAsn: 3.276 ± 0.015	6.198LeuPro: 6.198 ± 0.029	5.975LeuGln: 5.975 ± 0.028	6.096LeuArg: 6.096 ± 0.028	8.133LeuSer: 8.133 ± 0.028	4.978LeuThr: 4.978 ± 0.018	5.463LeuVal: 5.463 ± 0.021	1.089LeuTrp: 1.089 ± 0.009	2.452LeuTyr: 2.452 ± 0.018	0.007LeuXaa: 0.007 ± 0.001
Met	1.898MetAla: 1.898 ± 0.011	0.369MetCys: 0.369 ± 0.004	1.212MetAsp: 1.212 ± 0.008	1.818MetGlu: 1.818 ± 0.01	0.684MetPhe: 0.684 ± 0.006	1.225MetGly: 1.225 ± 0.008	0.481MetHis: 0.481 ± 0.005	0.759MetIle: 0.759 ± 0.006	1.37MetLys: 1.37 ± 0.009	1.959MetLeu: 1.959 ± 0.011	0.536MetMet: 0.536 ± 0.006	0.865MetAsn: 0.865 ± 0.008	1.148MetPro: 1.148 ± 0.013	0.963MetGln: 0.963 ± 0.008	1.026MetArg: 1.026 ± 0.007	1.551MetSer: 1.551 ± 0.01	1.089MetThr: 1.089 ± 0.008	1.4MetVal: 1.4 ± 0.009	0.227MetTrp: 0.227 ± 0.003	0.568MetTyr: 0.568 ± 0.006	0.001MetXaa: 0.001 ± 0.0
Asn	2.014AsnAla: 2.014 ± 0.011	0.771AsnCys: 0.771 ± 0.008	1.406AsnAsp: 1.406 ± 0.011	2.063AsnGlu: 2.063 ± 0.012	1.362AsnPhe: 1.362 ± 0.009	2.299AsnGly: 2.299 ± 0.018	0.886AsnHis: 0.886 ± 0.006	1.934AsnIle: 1.934 ± 0.013	2.06AsnLys: 2.06 ± 0.014	3.541AsnLeu: 3.541 ± 0.015	0.867AsnMet: 0.867 ± 0.006	1.357AsnAsn: 1.357 ± 0.008	2.067AsnPro: 2.067 ± 0.013	1.608AsnGln: 1.608 ± 0.015	1.746AsnArg: 1.746 ± 0.01	3.026AsnSer: 3.026 ± 0.017	1.877AsnThr: 1.877 ± 0.011	2.114AsnVal: 2.114 ± 0.016	0.403AsnTrp: 0.403 ± 0.004	1.068AsnTyr: 1.068 ± 0.014	0.002AsnXaa: 0.002 ± 0.0
Pro	5.282ProAla: 5.282 ± 0.027	1.136ProCys: 1.136 ± 0.014	2.927ProAsp: 2.927 ± 0.021	4.757ProGlu: 4.757 ± 0.025	1.868ProPhe: 1.868 ± 0.011	5.643ProGly: 5.643 ± 0.049	1.489ProHis: 1.489 ± 0.011	1.885ProIle: 1.885 ± 0.017	2.926ProLys: 2.926 ± 0.026	5.427ProLeu: 5.427 ± 0.022	1.09ProMet: 1.09 ± 0.008	1.756ProAsn: 1.756 ± 0.01	6.476ProPro: 6.476 ± 0.052	3.02ProGln: 3.02 ± 0.019	3.476ProArg: 3.476 ± 0.022	6.052ProSer: 6.052 ± 0.032	3.261ProThr: 3.261 ± 0.018	4.056ProVal: 4.056 ± 0.021	0.657ProTrp: 0.657 ± 0.007	1.482ProTyr: 1.482 ± 0.013	0.005ProXaa: 0.005 ± 0.0
Gln	3.823GlnAla: 3.823 ± 0.02	0.99GlnCys: 0.99 ± 0.013	2.424GlnAsp: 2.424 ± 0.012	4.086GlnGlu: 4.086 ± 0.022	1.309GlnPhe: 1.309 ± 0.009	2.942GlnGly: 2.942 ± 0.019	1.374GlnHis: 1.374 ± 0.01	1.903GlnIle: 1.903 ± 0.013	2.903GlnLys: 2.903 ± 0.016	4.906GlnLeu: 4.906 ± 0.026	1.109GlnMet: 1.109 ± 0.009	1.805GlnAsn: 1.805 ± 0.012	2.992GlnPro: 2.992 ± 0.018	3.328GlnGln: 3.328 ± 0.035	3.066GlnArg: 3.066 ± 0.021	3.276GlnSer: 3.276 ± 0.018	2.257GlnThr: 2.257 ± 0.012	2.902GlnVal: 2.902 ± 0.014	0.545GlnTrp: 0.545 ± 0.005	1.137GlnTyr: 1.137 ± 0.008	0.002GlnXaa: 0.002 ± 0.0
Arg	4.094ArgAla: 4.094 ± 0.019	1.192ArgCys: 1.192 ± 0.011	2.766ArgAsp: 2.766 ± 0.015	4.116ArgGlu: 4.116 ± 0.021	1.774ArgPhe: 1.774 ± 0.011	3.624ArgGly: 3.624 ± 0.023	1.544ArgHis: 1.544 ± 0.01	2.33ArgIle: 2.33 ± 0.013	3.677ArgLys: 3.677 ± 0.017	5.494ArgLeu: 5.494 ± 0.026	1.169ArgMet: 1.169 ± 0.007	2.073ArgAsn: 2.073 ± 0.011	3.435ArgPro: 3.435 ± 0.019	2.728ArgGln: 2.728 ± 0.016	4.474ArgArg: 4.474 ± 0.03	4.408ArgSer: 4.408 ± 0.029	2.89ArgThr: 2.89 ± 0.015	3.246ArgVal: 3.246 ± 0.023	0.684ArgTrp: 0.684 ± 0.006	1.387ArgTyr: 1.387 ± 0.008	0.004ArgXaa: 0.004 ± 0.0
Ser	5.626SerAla: 5.626 ± 0.02	1.881SerCys: 1.881 ± 0.015	4.014SerAsp: 4.014 ± 0.029	5.337SerGlu: 5.337 ± 0.022	2.941SerPhe: 2.941 ± 0.011	5.688SerGly: 5.688 ± 0.026	2.186SerHis: 2.186 ± 0.013	3.094SerIle: 3.094 ± 0.013	4.012SerLys: 4.012 ± 0.019	8.292SerLeu: 8.292 ± 0.032	1.624SerMet: 1.624 ± 0.01	2.538SerAsn: 2.538 ± 0.012	6.525SerPro: 6.525 ± 0.041	4.002SerGln: 4.002 ± 0.021	4.729SerArg: 4.729 ± 0.027	9.883SerSer: 9.883 ± 0.052	4.615SerThr: 4.615 ± 0.023	4.984SerVal: 4.984 ± 0.017	1.071SerTrp: 1.071 ± 0.01	2.039SerTyr: 2.039 ± 0.011	0.006SerXaa: 0.006 ± 0.001
Thr	3.906ThrAla: 3.906 ± 0.016	1.289ThrCys: 1.289 ± 0.013	2.399ThrAsp: 2.399 ± 0.012	3.621ThrGlu: 3.621 ± 0.017	2.025ThrPhe: 2.025 ± 0.012	3.565ThrGly: 3.565 ± 0.019	1.314ThrHis: 1.314 ± 0.011	2.294ThrIle: 2.294 ± 0.018	2.667ThrLys: 2.667 ± 0.021	5.279ThrLeu: 5.279 ± 0.017	1.112ThrMet: 1.112 ± 0.008	1.657ThrAsn: 1.657 ± 0.01	3.897ThrPro: 3.897 ± 0.027	2.351ThrGln: 2.351 ± 0.012	2.472ThrArg: 2.472 ± 0.011	4.703ThrSer: 4.703 ± 0.02	3.029ThrThr: 3.029 ± 0.02	3.928ThrVal: 3.928 ± 0.029	0.682ThrTrp: 0.682 ± 0.01	1.363ThrTyr: 1.363 ± 0.009	0.004ThrXaa: 0.004 ± 0.001
Val	4.455ValAla: 4.455 ± 0.015	1.449ValCys: 1.449 ± 0.014	2.984ValAsp: 2.984 ± 0.015	3.934ValGlu: 3.934 ± 0.026	2.26ValPhe: 2.26 ± 0.013	3.346ValGly: 3.346 ± 0.016	1.58ValHis: 1.58 ± 0.009	2.773ValIle: 2.773 ± 0.018	3.37ValLys: 3.37 ± 0.028	6.269ValLeu: 6.269 ± 0.023	1.263ValMet: 1.263 ± 0.008	2.162ValAsn: 2.162 ± 0.014	3.937ValPro: 3.937 ± 0.024	2.821ValGln: 2.821 ± 0.013	3.065ValArg: 3.065 ± 0.014	4.965ValSer: 4.965 ± 0.023	3.929ValThr: 3.929 ± 0.034	4.005ValVal: 4.005 ± 0.021	0.688ValTrp: 0.688 ± 0.005	1.546ValTyr: 1.546 ± 0.01	0.004ValXaa: 0.004 ± 0.0
Trp	0.775TrpAla: 0.775 ± 0.007	0.228TrpCys: 0.228 ± 0.003	0.632TrpAsp: 0.632 ± 0.007	0.787TrpGlu: 0.787 ± 0.007	0.426TrpPhe: 0.426 ± 0.006	0.692TrpGly: 0.692 ± 0.008	0.302TrpHis: 0.302 ± 0.004	0.478TrpIle: 0.478 ± 0.005	0.775TrpLys: 0.775 ± 0.007	1.178TrpLeu: 1.178 ± 0.009	0.309TrpMet: 0.309 ± 0.004	0.501TrpAsn: 0.501 ± 0.005	0.516TrpPro: 0.516 ± 0.005	0.53TrpGln: 0.53 ± 0.006	0.712TrpArg: 0.712 ± 0.006	0.853TrpSer: 0.853 ± 0.007	0.675TrpThr: 0.675 ± 0.009	0.68TrpVal: 0.68 ± 0.005	0.171TrpTrp: 0.171 ± 0.003	0.314TrpTyr: 0.314 ± 0.006	0.001TrpXaa: 0.001 ± 0.0
Tyr	1.356TyrAla: 1.356 ± 0.008	0.639TyrCys: 0.639 ± 0.007	1.255TyrAsp: 1.255 ± 0.013	1.663TyrGlu: 1.663 ± 0.014	1.127TyrPhe: 1.127 ± 0.008	1.587TyrGly: 1.587 ± 0.01	0.741TyrHis: 0.741 ± 0.006	1.294TyrIle: 1.294 ± 0.012	1.604TyrLys: 1.604 ± 0.041	2.508TyrLeu: 2.508 ± 0.013	0.582TyrMet: 0.582 ± 0.006	1.005TyrAsn: 1.005 ± 0.009	1.246TyrPro: 1.246 ± 0.009	1.212TyrGln: 1.212 ± 0.008	1.611TyrArg: 1.611 ± 0.017	2.131TyrSer: 2.131 ± 0.013	1.478TyrThr: 1.478 ± 0.015	1.556TyrVal: 1.556 ± 0.012	0.34TyrTrp: 0.34 ± 0.004	0.87TyrTyr: 0.87 ± 0.007	0.001TyrXaa: 0.001 ± 0.0
Xaa	0.005XaaAla: 0.005 ± 0.001	0.002XaaCys: 0.002 ± 0.0	0.003XaaAsp: 0.003 ± 0.0	0.005XaaGlu: 0.005 ± 0.001	0.003XaaPhe: 0.003 ± 0.0	0.007XaaGly: 0.007 ± 0.001	0.002XaaHis: 0.002 ± 0.0	0.003XaaIle: 0.003 ± 0.0	0.005XaaLys: 0.005 ± 0.0	0.006XaaLeu: 0.006 ± 0.001	0.001XaaMet: 0.001 ± 0.0	0.002XaaAsn: 0.002 ± 0.0	0.005XaaPro: 0.005 ± 0.001	0.003XaaGln: 0.003 ± 0.0	0.004XaaArg: 0.004 ± 0.0	0.005XaaSer: 0.005 ± 0.0	0.003XaaThr: 0.003 ± 0.0	0.005XaaVal: 0.005 ± 0.0	0.001XaaTrp: 0.001 ± 0.0	0.002XaaTyr: 0.002 ± 0.0	0.16XaaXaa: 0.16 ± 0.015

Statistics based on 35465 proteins (23467791 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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