Amino acid dipepetide frequency for Streptomyces sp. ADI93-02

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
20.919AlaAla: 20.919 ± 0.14
1.015AlaCys: 1.015 ± 0.021
8.201AlaAsp: 8.201 ± 0.078
8.742AlaGlu: 8.742 ± 0.085
3.519AlaPhe: 3.519 ± 0.041
13.626AlaGly: 13.626 ± 0.091
2.871AlaHis: 2.871 ± 0.044
3.28AlaIle: 3.28 ± 0.04
2.78AlaLys: 2.78 ± 0.045
14.563AlaLeu: 14.563 ± 0.097
2.584AlaMet: 2.584 ± 0.037
1.822AlaAsn: 1.822 ± 0.031
7.449AlaPro: 7.449 ± 0.076
3.704AlaGln: 3.704 ± 0.04
9.964AlaArg: 9.964 ± 0.086
6.141AlaSer: 6.141 ± 0.058
6.946AlaThr: 6.946 ± 0.063
12.429AlaVal: 12.429 ± 0.087
1.783AlaTrp: 1.783 ± 0.034
2.831AlaTyr: 2.831 ± 0.037
0.0AlaXaa: 0.0 ± 0.0
Cys
1.07CysAla: 1.07 ± 0.023
0.1CysCys: 0.1 ± 0.008
0.436CysAsp: 0.436 ± 0.015
0.385CysGlu: 0.385 ± 0.013
0.223CysPhe: 0.223 ± 0.011
0.937CysGly: 0.937 ± 0.02
0.188CysHis: 0.188 ± 0.009
0.171CysIle: 0.171 ± 0.009
0.106CysLys: 0.106 ± 0.006
0.7CysLeu: 0.7 ± 0.017
0.128CysMet: 0.128 ± 0.007
0.14CysAsn: 0.14 ± 0.008
0.456CysPro: 0.456 ± 0.016
0.139CysGln: 0.139 ± 0.007
0.586CysArg: 0.586 ± 0.018
0.439CysSer: 0.439 ± 0.015
0.51CysThr: 0.51 ± 0.014
0.622CysVal: 0.622 ± 0.015
0.12CysTrp: 0.12 ± 0.007
0.135CysTyr: 0.135 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
7.734AspAla: 7.734 ± 0.069
0.419AspCys: 0.419 ± 0.016
3.636AspAsp: 3.636 ± 0.048
3.917AspGlu: 3.917 ± 0.046
1.672AspPhe: 1.672 ± 0.03
6.514AspGly: 6.514 ± 0.067
1.404AspHis: 1.404 ± 0.026
1.942AspIle: 1.942 ± 0.029
1.208AspLys: 1.208 ± 0.03
6.022AspLeu: 6.022 ± 0.058
0.814AspMet: 0.814 ± 0.017
0.953AspAsn: 0.953 ± 0.018
4.497AspPro: 4.497 ± 0.054
1.497AspGln: 1.497 ± 0.027
4.87AspArg: 4.87 ± 0.049
2.652AspSer: 2.652 ± 0.034
3.369AspThr: 3.369 ± 0.041
4.664AspVal: 4.664 ± 0.053
0.972AspTrp: 0.972 ± 0.022
1.072AspTyr: 1.072 ± 0.022
0.0AspXaa: 0.0 ± 0.0
Glu
7.624GluAla: 7.624 ± 0.077
0.36GluCys: 0.36 ± 0.013
2.979GluAsp: 2.979 ± 0.033
3.707GluGlu: 3.707 ± 0.053
1.382GluPhe: 1.382 ± 0.024
4.589GluGly: 4.589 ± 0.045
1.45GluHis: 1.45 ± 0.027
2.263GluIle: 2.263 ± 0.031
1.542GluLys: 1.542 ± 0.029
6.688GluLeu: 6.688 ± 0.061
0.897GluMet: 0.897 ± 0.019
1.043GluAsn: 1.043 ± 0.024
3.436GluPro: 3.436 ± 0.044
2.264GluGln: 2.264 ± 0.037
5.291GluArg: 5.291 ± 0.056
2.683GluSer: 2.683 ± 0.036
2.921GluThr: 2.921 ± 0.035
4.33GluVal: 4.33 ± 0.054
0.738GluTrp: 0.738 ± 0.018
1.097GluTyr: 1.097 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
3.653PheAla: 3.653 ± 0.045
0.267PheCys: 0.267 ± 0.01
1.962PheAsp: 1.962 ± 0.036
1.415PheGlu: 1.415 ± 0.025
0.906PhePhe: 0.906 ± 0.023
3.114PheGly: 3.114 ± 0.041
0.625PheHis: 0.625 ± 0.015
0.748PheIle: 0.748 ± 0.021
0.487PheLys: 0.487 ± 0.015
2.651PheLeu: 2.651 ± 0.038
0.428PheMet: 0.428 ± 0.015
0.563PheAsn: 0.563 ± 0.016
1.344PhePro: 1.344 ± 0.025
0.655PheGln: 0.655 ± 0.017
1.841PheArg: 1.841 ± 0.026
1.524PheSer: 1.524 ± 0.026
2.004PheThr: 2.004 ± 0.029
2.22PheVal: 2.22 ± 0.037
0.423PheTrp: 0.423 ± 0.014
0.561PheTyr: 0.561 ± 0.017
0.0PheXaa: 0.0 ± 0.0
Gly
11.569GlyAla: 11.569 ± 0.083
0.804GlyCys: 0.804 ± 0.019
5.238GlyAsp: 5.238 ± 0.051
5.263GlyGlu: 5.263 ± 0.051
2.933GlyPhe: 2.933 ± 0.041
9.052GlyGly: 9.052 ± 0.093
2.389GlyHis: 2.389 ± 0.038
3.6GlyIle: 3.6 ± 0.044
2.51GlyLys: 2.51 ± 0.044
9.713GlyLeu: 9.713 ± 0.071
2.046GlyMet: 2.046 ± 0.033
1.736GlyAsn: 1.736 ± 0.03
5.483GlyPro: 5.483 ± 0.063
2.67GlyGln: 2.67 ± 0.034
7.938GlyArg: 7.938 ± 0.071
5.732GlySer: 5.732 ± 0.055
6.505GlyThr: 6.505 ± 0.052
7.402GlyVal: 7.402 ± 0.065
1.689GlyTrp: 1.689 ± 0.028
2.236GlyTyr: 2.236 ± 0.03
0.0GlyXaa: 0.0 ± 0.0
His
2.629HisAla: 2.629 ± 0.038
0.198HisCys: 0.198 ± 0.009
1.348HisAsp: 1.348 ± 0.025
1.191HisGlu: 1.191 ± 0.021
0.652HisPhe: 0.652 ± 0.018
2.395HisGly: 2.395 ± 0.031
0.688HisHis: 0.688 ± 0.019
0.735HisIle: 0.735 ± 0.017
0.328HisLys: 0.328 ± 0.012
2.458HisLeu: 2.458 ± 0.037
0.363HisMet: 0.363 ± 0.013
0.37HisAsn: 0.37 ± 0.01
1.776HisPro: 1.776 ± 0.032
0.657HisGln: 0.657 ± 0.015
2.179HisArg: 2.179 ± 0.03
1.057HisSer: 1.057 ± 0.022
1.344HisThr: 1.344 ± 0.025
1.586HisVal: 1.586 ± 0.029
0.376HisTrp: 0.376 ± 0.013
0.465HisTyr: 0.465 ± 0.014
0.0HisXaa: 0.0 ± 0.0
Ile
4.777IleAla: 4.777 ± 0.057
0.295IleCys: 0.295 ± 0.01
2.253IleAsp: 2.253 ± 0.034
1.973IleGlu: 1.973 ± 0.029
0.717IlePhe: 0.717 ± 0.02
3.675IleGly: 3.675 ± 0.041
0.609IleHis: 0.609 ± 0.015
0.915IleIle: 0.915 ± 0.021
0.732IleLys: 0.732 ± 0.018
2.445IleLeu: 2.445 ± 0.036
0.447IleMet: 0.447 ± 0.012
0.689IleAsn: 0.689 ± 0.018
1.784IlePro: 1.784 ± 0.029
0.737IleGln: 0.737 ± 0.021
2.236IleArg: 2.236 ± 0.033
1.768IleSer: 1.768 ± 0.034
2.168IleThr: 2.168 ± 0.034
2.664IleVal: 2.664 ± 0.043
0.386IleTrp: 0.386 ± 0.014
0.518IleTyr: 0.518 ± 0.014
0.0IleXaa: 0.0 ± 0.0
Lys
2.965LysAla: 2.965 ± 0.051
0.101LysCys: 0.101 ± 0.007
1.374LysAsp: 1.374 ± 0.033
1.245LysGlu: 1.245 ± 0.026
0.466LysPhe: 0.466 ± 0.015
1.87LysGly: 1.87 ± 0.033
0.431LysHis: 0.431 ± 0.015
0.88LysIle: 0.88 ± 0.019
0.921LysLys: 0.921 ± 0.034
2.042LysLeu: 2.042 ± 0.033
0.384LysMet: 0.384 ± 0.012
0.55LysAsn: 0.55 ± 0.019
1.357LysPro: 1.357 ± 0.026
0.722LysGln: 0.722 ± 0.022
1.425LysArg: 1.425 ± 0.026
1.143LysSer: 1.143 ± 0.028
1.212LysThr: 1.212 ± 0.03
1.866LysVal: 1.866 ± 0.035
0.273LysTrp: 0.273 ± 0.012
0.439LysTyr: 0.439 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
14.714LeuAla: 14.714 ± 0.093
0.832LeuCys: 0.832 ± 0.021
6.782LeuAsp: 6.782 ± 0.06
4.648LeuGlu: 4.648 ± 0.053
2.704LeuPhe: 2.704 ± 0.041
9.386LeuGly: 9.386 ± 0.075
2.332LeuHis: 2.332 ± 0.033
3.342LeuIle: 3.342 ± 0.052
2.054LeuLys: 2.054 ± 0.032
11.332LeuLeu: 11.332 ± 0.117
1.789LeuMet: 1.789 ± 0.032
1.673LeuAsn: 1.673 ± 0.027
6.52LeuPro: 6.52 ± 0.06
2.184LeuGln: 2.184 ± 0.031
8.573LeuArg: 8.573 ± 0.074
5.495LeuSer: 5.495 ± 0.048
6.88LeuThr: 6.88 ± 0.066
8.789LeuVal: 8.789 ± 0.068
1.227LeuTrp: 1.227 ± 0.025
1.829LeuTyr: 1.829 ± 0.027
0.0LeuXaa: 0.0 ± 0.0
Met
2.304MetAla: 2.304 ± 0.032
0.138MetCys: 0.138 ± 0.008
0.91MetAsp: 0.91 ± 0.02
0.8MetGlu: 0.8 ± 0.016
0.467MetPhe: 0.467 ± 0.017
1.362MetGly: 1.362 ± 0.027
0.37MetHis: 0.37 ± 0.013
0.714MetIle: 0.714 ± 0.02
0.449MetLys: 0.449 ± 0.013
1.719MetLeu: 1.719 ± 0.026
0.325MetMet: 0.325 ± 0.012
0.462MetAsn: 0.462 ± 0.015
1.171MetPro: 1.171 ± 0.019
0.485MetGln: 0.485 ± 0.015
1.482MetArg: 1.482 ± 0.025
1.361MetSer: 1.361 ± 0.026
1.567MetThr: 1.567 ± 0.027
1.317MetVal: 1.317 ± 0.024
0.217MetTrp: 0.217 ± 0.011
0.337MetTyr: 0.337 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
2.149AsnAla: 2.149 ± 0.03
0.16AsnCys: 0.16 ± 0.009
0.965AsnAsp: 0.965 ± 0.019
0.822AsnGlu: 0.822 ± 0.02
0.485AsnPhe: 0.485 ± 0.017
1.818AsnGly: 1.818 ± 0.031
0.395AsnHis: 0.395 ± 0.013
0.65AsnIle: 0.65 ± 0.018
0.405AsnLys: 0.405 ± 0.014
1.649AsnLeu: 1.649 ± 0.028
0.31AsnMet: 0.31 ± 0.011
0.411AsnAsn: 0.411 ± 0.012
1.294AsnPro: 1.294 ± 0.027
0.483AsnGln: 0.483 ± 0.015
1.27AsnArg: 1.27 ± 0.022
0.957AsnSer: 0.957 ± 0.021
1.152AsnThr: 1.152 ± 0.025
1.288AsnVal: 1.288 ± 0.028
0.301AsnTrp: 0.301 ± 0.012
0.407AsnTyr: 0.407 ± 0.016
0.0AsnXaa: 0.0 ± 0.0
Pro
8.981ProAla: 8.981 ± 0.095
0.337ProCys: 0.337 ± 0.012
4.475ProAsp: 4.475 ± 0.055
4.404ProGlu: 4.404 ± 0.049
1.533ProPhe: 1.533 ± 0.024
6.939ProGly: 6.939 ± 0.075
1.358ProHis: 1.358 ± 0.025
1.097ProIle: 1.097 ± 0.02
1.149ProLys: 1.149 ± 0.026
5.455ProLeu: 5.455 ± 0.056
1.04ProMet: 1.04 ± 0.023
0.844ProAsn: 0.844 ± 0.02
3.45ProPro: 3.45 ± 0.055
1.772ProGln: 1.772 ± 0.037
3.889ProArg: 3.889 ± 0.042
3.35ProSer: 3.35 ± 0.04
3.051ProThr: 3.051 ± 0.041
5.663ProVal: 5.663 ± 0.05
0.894ProTrp: 0.894 ± 0.02
1.456ProTyr: 1.456 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
3.603GlnAla: 3.603 ± 0.045
0.149GlnCys: 0.149 ± 0.007
1.492GlnAsp: 1.492 ± 0.024
1.589GlnGlu: 1.589 ± 0.029
0.675GlnPhe: 0.675 ± 0.016
2.343GlnGly: 2.343 ± 0.036
0.69GlnHis: 0.69 ± 0.017
1.082GlnIle: 1.082 ± 0.021
0.648GlnLys: 0.648 ± 0.02
3.072GlnLeu: 3.072 ± 0.036
0.495GlnMet: 0.495 ± 0.016
0.528GlnAsn: 0.528 ± 0.015
1.65GlnPro: 1.65 ± 0.036
1.27GlnGln: 1.27 ± 0.034
2.201GlnArg: 2.201 ± 0.029
1.276GlnSer: 1.276 ± 0.025
1.253GlnThr: 1.253 ± 0.023
2.311GlnVal: 2.311 ± 0.03
0.428GlnTrp: 0.428 ± 0.014
0.582GlnTyr: 0.582 ± 0.016
0.0GlnXaa: 0.0 ± 0.0
Arg
9.58ArgAla: 9.58 ± 0.078
0.55ArgCys: 0.55 ± 0.019
4.19ArgAsp: 4.19 ± 0.045
4.581ArgGlu: 4.581 ± 0.052
2.268ArgPhe: 2.268 ± 0.034
5.858ArgGly: 5.858 ± 0.059
2.007ArgHis: 2.007 ± 0.03
3.279ArgIle: 3.279 ± 0.04
1.669ArgLys: 1.669 ± 0.03
8.399ArgLeu: 8.399 ± 0.081
1.772ArgMet: 1.772 ± 0.03
1.391ArgAsn: 1.391 ± 0.023
4.918ArgPro: 4.918 ± 0.059
2.18ArgGln: 2.18 ± 0.028
7.55ArgArg: 7.55 ± 0.078
4.324ArgSer: 4.324 ± 0.049
5.882ArgThr: 5.882 ± 0.06
5.611ArgVal: 5.611 ± 0.056
1.353ArgTrp: 1.353 ± 0.025
1.788ArgTyr: 1.788 ± 0.027
0.0ArgXaa: 0.0 ± 0.0
Ser
7.046SerAla: 7.046 ± 0.052
0.417SerCys: 0.417 ± 0.014
2.796SerAsp: 2.796 ± 0.034
2.539SerGlu: 2.539 ± 0.038
1.592SerPhe: 1.592 ± 0.027
6.238SerGly: 6.238 ± 0.067
1.071SerHis: 1.071 ± 0.02
1.493SerIle: 1.493 ± 0.031
1.053SerLys: 1.053 ± 0.024
4.954SerLeu: 4.954 ± 0.048
1.128SerMet: 1.128 ± 0.024
0.892SerAsn: 0.892 ± 0.02
3.317SerPro: 3.317 ± 0.042
1.277SerGln: 1.277 ± 0.025
3.838SerArg: 3.838 ± 0.042
3.11SerSer: 3.11 ± 0.048
3.218SerThr: 3.218 ± 0.043
4.504SerVal: 4.504 ± 0.041
0.93SerTrp: 0.93 ± 0.02
1.269SerTyr: 1.269 ± 0.023
0.0SerXaa: 0.0 ± 0.0
Thr
8.968ThrAla: 8.968 ± 0.064
0.405ThrCys: 0.405 ± 0.013
3.726ThrAsp: 3.726 ± 0.044
3.411ThrGlu: 3.411 ± 0.042
1.66ThrPhe: 1.66 ± 0.029
6.999ThrGly: 6.999 ± 0.059
1.207ThrHis: 1.207 ± 0.021
1.623ThrIle: 1.623 ± 0.028
1.16ThrLys: 1.16 ± 0.025
5.842ThrLeu: 5.842 ± 0.053
0.958ThrMet: 0.958 ± 0.021
0.975ThrAsn: 0.975 ± 0.023
4.064ThrPro: 4.064 ± 0.044
1.368ThrGln: 1.368 ± 0.022
3.903ThrArg: 3.903 ± 0.046
3.271ThrSer: 3.271 ± 0.04
3.884ThrThr: 3.884 ± 0.048
6.212ThrVal: 6.212 ± 0.055
0.87ThrTrp: 0.87 ± 0.02
1.327ThrTyr: 1.327 ± 0.026
0.0ThrXaa: 0.0 ± 0.0
Val
10.391ValAla: 10.391 ± 0.074
0.72ValCys: 0.72 ± 0.021
4.831ValAsp: 4.831 ± 0.048
4.638ValGlu: 4.638 ± 0.039
2.404ValPhe: 2.404 ± 0.036
6.419ValGly: 6.419 ± 0.062
1.994ValHis: 1.994 ± 0.032
2.911ValIle: 2.911 ± 0.04
1.713ValLys: 1.713 ± 0.036
9.624ValLeu: 9.624 ± 0.077
1.5ValMet: 1.5 ± 0.029
1.574ValAsn: 1.574 ± 0.03
5.342ValPro: 5.342 ± 0.048
2.119ValGln: 2.119 ± 0.03
7.059ValArg: 7.059 ± 0.064
4.482ValSer: 4.482 ± 0.051
5.674ValThr: 5.674 ± 0.049
7.796ValVal: 7.796 ± 0.072
1.15ValTrp: 1.15 ± 0.023
1.572ValTyr: 1.572 ± 0.025
0.0ValXaa: 0.0 ± 0.0
Trp
1.663TrpAla: 1.663 ± 0.028
0.147TrpCys: 0.147 ± 0.006
0.793TrpAsp: 0.793 ± 0.019
0.726TrpGlu: 0.726 ± 0.02
0.498TrpPhe: 0.498 ± 0.013
1.072TrpGly: 1.072 ± 0.023
0.35TrpHis: 0.35 ± 0.013
0.559TrpIle: 0.559 ± 0.016
0.383TrpLys: 0.383 ± 0.013
1.698TrpLeu: 1.698 ± 0.03
0.298TrpMet: 0.298 ± 0.011
0.391TrpAsn: 0.391 ± 0.014
0.758TrpPro: 0.758 ± 0.019
0.592TrpGln: 0.592 ± 0.017
1.229TrpArg: 1.229 ± 0.024
0.936TrpSer: 0.936 ± 0.023
1.041TrpThr: 1.041 ± 0.021
0.997TrpVal: 0.997 ± 0.021
0.325TrpTrp: 0.325 ± 0.012
0.346TrpTyr: 0.346 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.826TyrAla: 2.826 ± 0.031
0.175TyrCys: 0.175 ± 0.009
1.441TyrAsp: 1.441 ± 0.026
1.29TyrGlu: 1.29 ± 0.024
0.636TyrPhe: 0.636 ± 0.018
2.303TyrGly: 2.303 ± 0.034
0.364TyrHis: 0.364 ± 0.012
0.505TyrIle: 0.505 ± 0.015
0.368TyrLys: 0.368 ± 0.011
2.06TyrLeu: 2.06 ± 0.03
0.25TyrMet: 0.25 ± 0.009
0.365TyrAsn: 0.365 ± 0.012
1.071TyrPro: 1.071 ± 0.027
0.563TyrGln: 0.563 ± 0.017
1.826TyrArg: 1.826 ± 0.029
0.982TyrSer: 0.982 ± 0.023
1.251TyrThr: 1.251 ± 0.025
1.644TyrVal: 1.644 ± 0.029
0.347TyrTrp: 0.347 ± 0.013
0.447TyrTyr: 0.447 ± 0.015
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 7315 proteins (2400191 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