Amino acid dipepetide frequency for Streptomyces sp. CB01373

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
21.335AlaAla: 21.335 ± 0.174
1.114AlaCys: 1.114 ± 0.025
8.065AlaAsp: 8.065 ± 0.07
8.837AlaGlu: 8.837 ± 0.092
3.447AlaPhe: 3.447 ± 0.043
13.31AlaGly: 13.31 ± 0.097
3.053AlaHis: 3.053 ± 0.034
3.361AlaIle: 3.361 ± 0.048
2.767AlaLys: 2.767 ± 0.062
14.551AlaLeu: 14.551 ± 0.125
2.465AlaMet: 2.465 ± 0.035
1.876AlaAsn: 1.876 ± 0.033
7.122AlaPro: 7.122 ± 0.079
3.852AlaGln: 3.852 ± 0.05
10.567AlaArg: 10.567 ± 0.102
5.865AlaSer: 5.865 ± 0.065
6.893AlaThr: 6.893 ± 0.062
12.405AlaVal: 12.405 ± 0.106
1.872AlaTrp: 1.872 ± 0.034
2.76AlaTyr: 2.76 ± 0.04
0.0AlaXaa: 0.0 ± 0.0
Cys
1.095CysAla: 1.095 ± 0.024
0.103CysCys: 0.103 ± 0.008
0.469CysAsp: 0.469 ± 0.015
0.402CysGlu: 0.402 ± 0.014
0.227CysPhe: 0.227 ± 0.011
0.957CysGly: 0.957 ± 0.025
0.196CysHis: 0.196 ± 0.009
0.158CysIle: 0.158 ± 0.009
0.114CysLys: 0.114 ± 0.008
0.747CysLeu: 0.747 ± 0.021
0.121CysMet: 0.121 ± 0.008
0.14CysAsn: 0.14 ± 0.009
0.513CysPro: 0.513 ± 0.018
0.175CysGln: 0.175 ± 0.01
0.66CysArg: 0.66 ± 0.019
0.438CysSer: 0.438 ± 0.017
0.527CysThr: 0.527 ± 0.014
0.706CysVal: 0.706 ± 0.022
0.132CysTrp: 0.132 ± 0.009
0.154CysTyr: 0.154 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
7.529AspAla: 7.529 ± 0.085
0.425AspCys: 0.425 ± 0.015
3.554AspAsp: 3.554 ± 0.048
3.865AspGlu: 3.865 ± 0.049
1.649AspPhe: 1.649 ± 0.029
6.267AspGly: 6.267 ± 0.065
1.451AspHis: 1.451 ± 0.027
1.837AspIle: 1.837 ± 0.029
1.178AspLys: 1.178 ± 0.033
6.22AspLeu: 6.22 ± 0.063
0.796AspMet: 0.796 ± 0.019
0.952AspAsn: 0.952 ± 0.025
4.423AspPro: 4.423 ± 0.052
1.562AspGln: 1.562 ± 0.034
4.991AspArg: 4.991 ± 0.061
2.539AspSer: 2.539 ± 0.033
3.246AspThr: 3.246 ± 0.04
4.711AspVal: 4.711 ± 0.05
1.035AspTrp: 1.035 ± 0.025
1.101AspTyr: 1.101 ± 0.022
0.0AspXaa: 0.0 ± 0.0
Glu
7.368GluAla: 7.368 ± 0.086
0.389GluCys: 0.389 ± 0.015
2.885GluAsp: 2.885 ± 0.044
3.627GluGlu: 3.627 ± 0.054
1.445GluPhe: 1.445 ± 0.025
4.316GluGly: 4.316 ± 0.045
1.597GluHis: 1.597 ± 0.033
2.199GluIle: 2.199 ± 0.033
1.364GluLys: 1.364 ± 0.033
6.911GluLeu: 6.911 ± 0.075
0.85GluMet: 0.85 ± 0.022
1.043GluAsn: 1.043 ± 0.027
3.461GluPro: 3.461 ± 0.039
2.353GluGln: 2.353 ± 0.038
5.581GluArg: 5.581 ± 0.06
2.58GluSer: 2.58 ± 0.038
2.885GluThr: 2.885 ± 0.036
4.437GluVal: 4.437 ± 0.047
0.722GluTrp: 0.722 ± 0.018
1.122GluTyr: 1.122 ± 0.026
0.0GluXaa: 0.0 ± 0.0
Phe
3.663PheAla: 3.663 ± 0.044
0.269PheCys: 0.269 ± 0.012
1.936PheAsp: 1.936 ± 0.032
1.439PheGlu: 1.439 ± 0.027
0.862PhePhe: 0.862 ± 0.024
2.961PheGly: 2.961 ± 0.048
0.624PheHis: 0.624 ± 0.016
0.674PheIle: 0.674 ± 0.018
0.527PheLys: 0.527 ± 0.018
2.565PheLeu: 2.565 ± 0.041
0.407PheMet: 0.407 ± 0.014
0.545PheAsn: 0.545 ± 0.017
1.403PhePro: 1.403 ± 0.025
0.7PheGln: 0.7 ± 0.018
1.824PheArg: 1.824 ± 0.034
1.421PheSer: 1.421 ± 0.028
1.98PheThr: 1.98 ± 0.033
2.202PheVal: 2.202 ± 0.033
0.405PheTrp: 0.405 ± 0.014
0.564PheTyr: 0.564 ± 0.017
0.0PheXaa: 0.0 ± 0.0
Gly
11.06GlyAla: 11.06 ± 0.087
0.837GlyCys: 0.837 ± 0.023
5.209GlyAsp: 5.209 ± 0.047
5.079GlyGlu: 5.079 ± 0.045
2.869GlyPhe: 2.869 ± 0.044
8.934GlyGly: 8.934 ± 0.11
2.436GlyHis: 2.436 ± 0.039
3.322GlyIle: 3.322 ± 0.04
2.405GlyLys: 2.405 ± 0.042
9.49GlyLeu: 9.49 ± 0.082
1.981GlyMet: 1.981 ± 0.032
1.803GlyAsn: 1.803 ± 0.039
5.256GlyPro: 5.256 ± 0.058
2.736GlyGln: 2.736 ± 0.037
8.089GlyArg: 8.089 ± 0.066
5.408GlySer: 5.408 ± 0.066
6.501GlyThr: 6.501 ± 0.074
7.632GlyVal: 7.632 ± 0.073
1.678GlyTrp: 1.678 ± 0.028
2.221GlyTyr: 2.221 ± 0.036
0.0GlyXaa: 0.0 ± 0.0
His
2.778HisAla: 2.778 ± 0.038
0.21HisCys: 0.21 ± 0.012
1.379HisAsp: 1.379 ± 0.026
1.265HisGlu: 1.265 ± 0.025
0.649HisPhe: 0.649 ± 0.017
2.516HisGly: 2.516 ± 0.038
0.722HisHis: 0.722 ± 0.022
0.694HisIle: 0.694 ± 0.017
0.371HisLys: 0.371 ± 0.014
2.448HisLeu: 2.448 ± 0.038
0.348HisMet: 0.348 ± 0.013
0.38HisAsn: 0.38 ± 0.014
1.876HisPro: 1.876 ± 0.031
0.675HisGln: 0.675 ± 0.018
2.214HisArg: 2.214 ± 0.037
1.06HisSer: 1.06 ± 0.021
1.358HisThr: 1.358 ± 0.027
1.781HisVal: 1.781 ± 0.028
0.398HisTrp: 0.398 ± 0.012
0.484HisTyr: 0.484 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
4.635IleAla: 4.635 ± 0.053
0.272IleCys: 0.272 ± 0.011
2.153IleAsp: 2.153 ± 0.034
1.92IleGlu: 1.92 ± 0.036
0.646IlePhe: 0.646 ± 0.019
3.432IleGly: 3.432 ± 0.045
0.605IleHis: 0.605 ± 0.016
0.81IleIle: 0.81 ± 0.024
0.743IleLys: 0.743 ± 0.023
2.37IleLeu: 2.37 ± 0.037
0.434IleMet: 0.434 ± 0.014
0.674IleAsn: 0.674 ± 0.02
1.685IlePro: 1.685 ± 0.03
0.737IleGln: 0.737 ± 0.019
2.203IleArg: 2.203 ± 0.035
1.598IleSer: 1.598 ± 0.029
2.137IleThr: 2.137 ± 0.036
2.686IleVal: 2.686 ± 0.037
0.357IleTrp: 0.357 ± 0.015
0.496IleTyr: 0.496 ± 0.016
0.0IleXaa: 0.0 ± 0.0
Lys
2.974LysAla: 2.974 ± 0.053
0.121LysCys: 0.121 ± 0.008
1.373LysAsp: 1.373 ± 0.035
1.181LysGlu: 1.181 ± 0.032
0.465LysPhe: 0.465 ± 0.019
1.857LysGly: 1.857 ± 0.039
0.42LysHis: 0.42 ± 0.014
0.811LysIle: 0.811 ± 0.024
0.855LysLys: 0.855 ± 0.033
1.979LysLeu: 1.979 ± 0.034
0.37LysMet: 0.37 ± 0.014
0.54LysAsn: 0.54 ± 0.02
1.307LysPro: 1.307 ± 0.03
0.7LysGln: 0.7 ± 0.019
1.395LysArg: 1.395 ± 0.029
1.178LysSer: 1.178 ± 0.028
1.247LysThr: 1.247 ± 0.032
1.874LysVal: 1.874 ± 0.041
0.269LysTrp: 0.269 ± 0.012
0.45LysTyr: 0.45 ± 0.017
0.0LysXaa: 0.0 ± 0.0
Leu
14.893LeuAla: 14.893 ± 0.13
0.88LeuCys: 0.88 ± 0.024
6.68LeuAsp: 6.68 ± 0.06
4.804LeuGlu: 4.804 ± 0.053
2.632LeuPhe: 2.632 ± 0.05
9.254LeuGly: 9.254 ± 0.082
2.314LeuHis: 2.314 ± 0.033
3.232LeuIle: 3.232 ± 0.047
2.121LeuLys: 2.121 ± 0.041
11.456LeuLeu: 11.456 ± 0.102
1.601LeuMet: 1.601 ± 0.025
1.718LeuAsn: 1.718 ± 0.029
6.492LeuPro: 6.492 ± 0.074
2.224LeuGln: 2.224 ± 0.035
8.945LeuArg: 8.945 ± 0.082
5.366LeuSer: 5.366 ± 0.056
6.942LeuThr: 6.942 ± 0.068
8.867LeuVal: 8.867 ± 0.082
1.321LeuTrp: 1.321 ± 0.026
1.864LeuTyr: 1.864 ± 0.027
0.0LeuXaa: 0.0 ± 0.0
Met
2.25MetAla: 2.25 ± 0.031
0.14MetCys: 0.14 ± 0.008
0.881MetAsp: 0.881 ± 0.018
0.755MetGlu: 0.755 ± 0.019
0.433MetPhe: 0.433 ± 0.014
1.312MetGly: 1.312 ± 0.025
0.351MetHis: 0.351 ± 0.013
0.635MetIle: 0.635 ± 0.017
0.393MetLys: 0.393 ± 0.013
1.622MetLeu: 1.622 ± 0.031
0.282MetMet: 0.282 ± 0.013
0.435MetAsn: 0.435 ± 0.016
1.112MetPro: 1.112 ± 0.024
0.43MetGln: 0.43 ± 0.014
1.429MetArg: 1.429 ± 0.03
1.309MetSer: 1.309 ± 0.025
1.507MetThr: 1.507 ± 0.028
1.307MetVal: 1.307 ± 0.026
0.217MetTrp: 0.217 ± 0.01
0.328MetTyr: 0.328 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.183AsnAla: 2.183 ± 0.036
0.178AsnCys: 0.178 ± 0.011
0.935AsnAsp: 0.935 ± 0.027
0.809AsnGlu: 0.809 ± 0.018
0.476AsnPhe: 0.476 ± 0.015
1.887AsnGly: 1.887 ± 0.036
0.406AsnHis: 0.406 ± 0.013
0.665AsnIle: 0.665 ± 0.02
0.421AsnLys: 0.421 ± 0.015
1.659AsnLeu: 1.659 ± 0.028
0.317AsnMet: 0.317 ± 0.014
0.406AsnAsn: 0.406 ± 0.017
1.364AsnPro: 1.364 ± 0.029
0.519AsnGln: 0.519 ± 0.016
1.317AsnArg: 1.317 ± 0.026
0.915AsnSer: 0.915 ± 0.023
1.075AsnThr: 1.075 ± 0.026
1.385AsnVal: 1.385 ± 0.032
0.298AsnTrp: 0.298 ± 0.012
0.399AsnTyr: 0.399 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
8.917ProAla: 8.917 ± 0.096
0.343ProCys: 0.343 ± 0.014
4.423ProAsp: 4.423 ± 0.051
4.413ProGlu: 4.413 ± 0.052
1.498ProPhe: 1.498 ± 0.025
6.736ProGly: 6.736 ± 0.081
1.399ProHis: 1.399 ± 0.028
1.221ProIle: 1.221 ± 0.024
1.159ProLys: 1.159 ± 0.029
5.351ProLeu: 5.351 ± 0.053
1.002ProMet: 1.002 ± 0.026
0.902ProAsn: 0.902 ± 0.024
3.618ProPro: 3.618 ± 0.068
1.778ProGln: 1.778 ± 0.041
4.127ProArg: 4.127 ± 0.053
3.263ProSer: 3.263 ± 0.047
3.134ProThr: 3.134 ± 0.039
5.564ProVal: 5.564 ± 0.058
0.869ProTrp: 0.869 ± 0.023
1.426ProTyr: 1.426 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.86GlnAla: 3.86 ± 0.052
0.173GlnCys: 0.173 ± 0.009
1.509GlnAsp: 1.509 ± 0.032
1.509GlnGlu: 1.509 ± 0.026
0.668GlnPhe: 0.668 ± 0.018
2.442GlnGly: 2.442 ± 0.039
0.696GlnHis: 0.696 ± 0.019
1.068GlnIle: 1.068 ± 0.021
0.635GlnLys: 0.635 ± 0.022
2.942GlnLeu: 2.942 ± 0.04
0.497GlnMet: 0.497 ± 0.016
0.517GlnAsn: 0.517 ± 0.018
1.726GlnPro: 1.726 ± 0.039
1.281GlnGln: 1.281 ± 0.034
2.432GlnArg: 2.432 ± 0.036
1.322GlnSer: 1.322 ± 0.024
1.361GlnThr: 1.361 ± 0.026
2.394GlnVal: 2.394 ± 0.037
0.459GlnTrp: 0.459 ± 0.014
0.593GlnTyr: 0.593 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
9.993ArgAla: 9.993 ± 0.093
0.6ArgCys: 0.6 ± 0.017
4.377ArgAsp: 4.377 ± 0.054
4.885ArgGlu: 4.885 ± 0.054
2.358ArgPhe: 2.358 ± 0.036
6.017ArgGly: 6.017 ± 0.065
2.24ArgHis: 2.24 ± 0.034
3.204ArgIle: 3.204 ± 0.037
1.641ArgLys: 1.641 ± 0.034
9.243ArgLeu: 9.243 ± 0.093
1.737ArgMet: 1.737 ± 0.029
1.342ArgAsn: 1.342 ± 0.025
5.235ArgPro: 5.235 ± 0.068
2.425ArgGln: 2.425 ± 0.034
8.188ArgArg: 8.188 ± 0.085
4.11ArgSer: 4.11 ± 0.048
5.538ArgThr: 5.538 ± 0.047
6.043ArgVal: 6.043 ± 0.052
1.366ArgTrp: 1.366 ± 0.023
1.74ArgTyr: 1.74 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
6.87SerAla: 6.87 ± 0.066
0.426SerCys: 0.426 ± 0.016
2.637SerAsp: 2.637 ± 0.04
2.389SerGlu: 2.389 ± 0.035
1.541SerPhe: 1.541 ± 0.031
6.101SerGly: 6.101 ± 0.073
1.039SerHis: 1.039 ± 0.024
1.335SerIle: 1.335 ± 0.027
1.006SerLys: 1.006 ± 0.025
4.904SerLeu: 4.904 ± 0.056
1.036SerMet: 1.036 ± 0.023
0.85SerAsn: 0.85 ± 0.022
3.177SerPro: 3.177 ± 0.043
1.257SerGln: 1.257 ± 0.023
3.773SerArg: 3.773 ± 0.042
2.876SerSer: 2.876 ± 0.052
3.003SerThr: 3.003 ± 0.047
4.317SerVal: 4.317 ± 0.045
0.89SerTrp: 0.89 ± 0.02
1.237SerTyr: 1.237 ± 0.024
0.0SerXaa: 0.0 ± 0.0
Thr
8.953ThrAla: 8.953 ± 0.078
0.451ThrCys: 0.451 ± 0.015
3.61ThrAsp: 3.61 ± 0.041
3.28ThrGlu: 3.28 ± 0.037
1.521ThrPhe: 1.521 ± 0.026
6.837ThrGly: 6.837 ± 0.075
1.252ThrHis: 1.252 ± 0.024
1.607ThrIle: 1.607 ± 0.03
1.148ThrLys: 1.148 ± 0.03
5.68ThrLeu: 5.68 ± 0.051
0.929ThrMet: 0.929 ± 0.022
0.984ThrAsn: 0.984 ± 0.026
4.137ThrPro: 4.137 ± 0.048
1.352ThrGln: 1.352 ± 0.027
4.087ThrArg: 4.087 ± 0.048
3.164ThrSer: 3.164 ± 0.044
3.823ThrThr: 3.823 ± 0.061
6.118ThrVal: 6.118 ± 0.064
0.897ThrTrp: 0.897 ± 0.021
1.33ThrTyr: 1.33 ± 0.031
0.0ThrXaa: 0.0 ± 0.0
Val
10.781ValAla: 10.781 ± 0.09
0.778ValCys: 0.778 ± 0.021
4.92ValAsp: 4.92 ± 0.058
4.73ValGlu: 4.73 ± 0.049
2.452ValPhe: 2.452 ± 0.036
6.439ValGly: 6.439 ± 0.056
2.051ValHis: 2.051 ± 0.03
2.766ValIle: 2.766 ± 0.035
1.771ValLys: 1.771 ± 0.037
9.651ValLeu: 9.651 ± 0.091
1.427ValMet: 1.427 ± 0.029
1.682ValAsn: 1.682 ± 0.033
5.396ValPro: 5.396 ± 0.056
2.081ValGln: 2.081 ± 0.033
7.346ValArg: 7.346 ± 0.069
4.355ValSer: 4.355 ± 0.051
5.753ValThr: 5.753 ± 0.057
8.119ValVal: 8.119 ± 0.082
1.113ValTrp: 1.113 ± 0.023
1.574ValTyr: 1.574 ± 0.026
0.0ValXaa: 0.0 ± 0.0
Trp
1.626TrpAla: 1.626 ± 0.029
0.156TrpCys: 0.156 ± 0.009
0.808TrpAsp: 0.808 ± 0.021
0.699TrpGlu: 0.699 ± 0.018
0.51TrpPhe: 0.51 ± 0.017
1.077TrpGly: 1.077 ± 0.024
0.364TrpHis: 0.364 ± 0.012
0.519TrpIle: 0.519 ± 0.016
0.358TrpLys: 0.358 ± 0.014
1.77TrpLeu: 1.77 ± 0.028
0.268TrpMet: 0.268 ± 0.012
0.408TrpAsn: 0.408 ± 0.013
0.798TrpPro: 0.798 ± 0.021
0.64TrpGln: 0.64 ± 0.016
1.342TrpArg: 1.342 ± 0.023
0.897TrpSer: 0.897 ± 0.023
1.064TrpThr: 1.064 ± 0.023
0.979TrpVal: 0.979 ± 0.026
0.35TrpTrp: 0.35 ± 0.016
0.369TrpTyr: 0.369 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.755TyrAla: 2.755 ± 0.035
0.172TyrCys: 0.172 ± 0.009
1.528TyrAsp: 1.528 ± 0.031
1.25TyrGlu: 1.25 ± 0.025
0.622TyrPhe: 0.622 ± 0.02
2.296TyrGly: 2.296 ± 0.034
0.385TyrHis: 0.385 ± 0.012
0.477TyrIle: 0.477 ± 0.016
0.39TyrLys: 0.39 ± 0.014
2.046TyrLeu: 2.046 ± 0.037
0.26TyrMet: 0.26 ± 0.012
0.417TyrAsn: 0.417 ± 0.015
1.04TyrPro: 1.04 ± 0.021
0.608TyrGln: 0.608 ± 0.019
1.77TyrArg: 1.77 ± 0.03
0.996TyrSer: 0.996 ± 0.021
1.187TyrThr: 1.187 ± 0.026
1.657TyrVal: 1.657 ± 0.028
0.354TyrTrp: 0.354 ± 0.013
0.431TyrTyr: 0.431 ± 0.016
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 6507 proteins (2198463 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