Amino acid dipepetide frequency for Saccharopolyspora flava

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
18.142AlaAla: 18.142 ± 0.152
0.992AlaCys: 0.992 ± 0.025
8.222AlaAsp: 8.222 ± 0.083
10.106AlaGlu: 10.106 ± 0.094
3.487AlaPhe: 3.487 ± 0.048
11.973AlaGly: 11.973 ± 0.103
2.719AlaHis: 2.719 ± 0.042
4.143AlaIle: 4.143 ± 0.06
2.718AlaLys: 2.718 ± 0.053
13.724AlaLeu: 13.724 ± 0.137
2.656AlaMet: 2.656 ± 0.04
2.118AlaAsn: 2.118 ± 0.035
6.191AlaPro: 6.191 ± 0.082
3.891AlaGln: 3.891 ± 0.048
8.972AlaArg: 8.972 ± 0.075
5.599AlaSer: 5.599 ± 0.065
6.633AlaThr: 6.633 ± 0.069
11.294AlaVal: 11.294 ± 0.096
1.658AlaTrp: 1.658 ± 0.029
2.085AlaTyr: 2.085 ± 0.038
0.0AlaXaa: 0.0 ± 0.0
Cys
1.076CysAla: 1.076 ± 0.023
0.089CysCys: 0.089 ± 0.007
0.533CysAsp: 0.533 ± 0.02
0.424CysGlu: 0.424 ± 0.015
0.232CysPhe: 0.232 ± 0.012
0.957CysGly: 0.957 ± 0.024
0.181CysHis: 0.181 ± 0.01
0.159CysIle: 0.159 ± 0.01
0.115CysLys: 0.115 ± 0.008
0.709CysLeu: 0.709 ± 0.02
0.125CysMet: 0.125 ± 0.009
0.13CysAsn: 0.13 ± 0.009
0.47CysPro: 0.47 ± 0.019
0.193CysGln: 0.193 ± 0.01
0.606CysArg: 0.606 ± 0.021
0.473CysSer: 0.473 ± 0.018
0.486CysThr: 0.486 ± 0.02
0.607CysVal: 0.607 ± 0.02
0.122CysTrp: 0.122 ± 0.008
0.187CysTyr: 0.187 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
7.447AspAla: 7.447 ± 0.086
0.394AspCys: 0.394 ± 0.018
4.138AspAsp: 4.138 ± 0.06
4.719AspGlu: 4.719 ± 0.061
1.745AspPhe: 1.745 ± 0.037
6.075AspGly: 6.075 ± 0.079
1.419AspHis: 1.419 ± 0.03
1.849AspIle: 1.849 ± 0.034
1.164AspLys: 1.164 ± 0.03
6.645AspLeu: 6.645 ± 0.069
0.831AspMet: 0.831 ± 0.021
1.034AspAsn: 1.034 ± 0.024
4.614AspPro: 4.614 ± 0.052
1.799AspGln: 1.799 ± 0.031
4.862AspArg: 4.862 ± 0.062
2.824AspSer: 2.824 ± 0.049
2.986AspThr: 2.986 ± 0.041
5.441AspVal: 5.441 ± 0.062
0.97AspTrp: 0.97 ± 0.026
1.276AspTyr: 1.276 ± 0.028
0.0AspXaa: 0.0 ± 0.0
Glu
7.141GluAla: 7.141 ± 0.079
0.389GluCys: 0.389 ± 0.015
2.958GluAsp: 2.958 ± 0.042
3.412GluGlu: 3.412 ± 0.052
2.044GluPhe: 2.044 ± 0.036
3.945GluGly: 3.945 ± 0.052
2.045GluHis: 2.045 ± 0.037
2.817GluIle: 2.817 ± 0.041
1.317GluLys: 1.317 ± 0.03
7.994GluLeu: 7.994 ± 0.084
1.059GluMet: 1.059 ± 0.025
1.169GluAsn: 1.169 ± 0.026
3.894GluPro: 3.894 ± 0.07
2.842GluGln: 2.842 ± 0.04
5.752GluArg: 5.752 ± 0.07
3.058GluSer: 3.058 ± 0.042
3.113GluThr: 3.113 ± 0.039
5.617GluVal: 5.617 ± 0.06
0.855GluTrp: 0.855 ± 0.021
0.941GluTyr: 0.941 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
3.968PheAla: 3.968 ± 0.061
0.286PheCys: 0.286 ± 0.013
2.293PheAsp: 2.293 ± 0.04
1.565PheGlu: 1.565 ± 0.025
0.941PhePhe: 0.941 ± 0.026
3.481PheGly: 3.481 ± 0.053
0.697PheHis: 0.697 ± 0.02
0.794PheIle: 0.794 ± 0.024
0.461PheLys: 0.461 ± 0.017
2.708PheLeu: 2.708 ± 0.043
0.399PheMet: 0.399 ± 0.015
0.611PheAsn: 0.611 ± 0.019
1.42PhePro: 1.42 ± 0.026
0.774PheGln: 0.774 ± 0.025
1.861PheArg: 1.861 ± 0.033
1.62PheSer: 1.62 ± 0.028
2.007PheThr: 2.007 ± 0.04
2.373PheVal: 2.373 ± 0.035
0.451PheTrp: 0.451 ± 0.016
0.615PheTyr: 0.615 ± 0.018
0.0PheXaa: 0.0 ± 0.0
Gly
10.23GlyAla: 10.23 ± 0.09
0.844GlyCys: 0.844 ± 0.023
5.138GlyAsp: 5.138 ± 0.065
5.798GlyGlu: 5.798 ± 0.059
3.171GlyPhe: 3.171 ± 0.048
8.3GlyGly: 8.3 ± 0.101
2.177GlyHis: 2.177 ± 0.04
3.697GlyIle: 3.697 ± 0.043
2.33GlyLys: 2.33 ± 0.044
9.204GlyLeu: 9.204 ± 0.09
2.241GlyMet: 2.241 ± 0.039
1.848GlyAsn: 1.848 ± 0.036
4.561GlyPro: 4.561 ± 0.061
2.767GlyGln: 2.767 ± 0.048
6.664GlyArg: 6.664 ± 0.063
5.241GlySer: 5.241 ± 0.058
5.697GlyThr: 5.697 ± 0.065
8.172GlyVal: 8.172 ± 0.078
1.678GlyTrp: 1.678 ± 0.035
2.192GlyTyr: 2.192 ± 0.039
0.0GlyXaa: 0.0 ± 0.0
His
2.696HisAla: 2.696 ± 0.045
0.226HisCys: 0.226 ± 0.011
1.514HisAsp: 1.514 ± 0.027
1.309HisGlu: 1.309 ± 0.027
0.675HisPhe: 0.675 ± 0.018
2.257HisGly: 2.257 ± 0.041
0.723HisHis: 0.723 ± 0.024
0.603HisIle: 0.603 ± 0.018
0.307HisLys: 0.307 ± 0.016
2.439HisLeu: 2.439 ± 0.042
0.303HisMet: 0.303 ± 0.012
0.435HisAsn: 0.435 ± 0.017
1.824HisPro: 1.824 ± 0.033
0.695HisGln: 0.695 ± 0.022
2.119HisArg: 2.119 ± 0.035
1.073HisSer: 1.073 ± 0.024
1.085HisThr: 1.085 ± 0.023
1.993HisVal: 1.993 ± 0.038
0.371HisTrp: 0.371 ± 0.013
0.516HisTyr: 0.516 ± 0.017
0.0HisXaa: 0.0 ± 0.0
Ile
5.353IleAla: 5.353 ± 0.065
0.324IleCys: 0.324 ± 0.014
2.548IleAsp: 2.548 ± 0.042
2.139IleGlu: 2.139 ± 0.036
0.788IlePhe: 0.788 ± 0.022
4.08IleGly: 4.08 ± 0.061
0.593IleHis: 0.593 ± 0.019
1.09IleIle: 1.09 ± 0.031
0.764IleLys: 0.764 ± 0.025
2.221IleLeu: 2.221 ± 0.039
0.495IleMet: 0.495 ± 0.017
0.888IleAsn: 0.888 ± 0.024
1.999IlePro: 1.999 ± 0.036
0.709IleGln: 0.709 ± 0.022
2.388IleArg: 2.388 ± 0.035
2.121IleSer: 2.121 ± 0.038
2.686IleThr: 2.686 ± 0.037
2.911IleVal: 2.911 ± 0.047
0.375IleTrp: 0.375 ± 0.014
0.638IleTyr: 0.638 ± 0.019
0.0IleXaa: 0.0 ± 0.0
Lys
2.471LysAla: 2.471 ± 0.052
0.103LysCys: 0.103 ± 0.009
0.992LysAsp: 0.992 ± 0.028
0.915LysGlu: 0.915 ± 0.026
0.514LysPhe: 0.514 ± 0.018
1.364LysGly: 1.364 ± 0.033
0.479LysHis: 0.479 ± 0.016
0.924LysIle: 0.924 ± 0.027
0.633LysLys: 0.633 ± 0.027
2.222LysLeu: 2.222 ± 0.044
0.422LysMet: 0.422 ± 0.015
0.457LysAsn: 0.457 ± 0.017
1.505LysPro: 1.505 ± 0.032
0.79LysGln: 0.79 ± 0.023
1.586LysArg: 1.586 ± 0.034
1.141LysSer: 1.141 ± 0.029
1.198LysThr: 1.198 ± 0.03
1.837LysVal: 1.837 ± 0.037
0.255LysTrp: 0.255 ± 0.011
0.353LysTyr: 0.353 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
14.548LeuAla: 14.548 ± 0.124
0.846LeuCys: 0.846 ± 0.024
7.061LeuAsp: 7.061 ± 0.078
4.912LeuGlu: 4.912 ± 0.063
2.809LeuPhe: 2.809 ± 0.045
9.627LeuGly: 9.627 ± 0.09
2.444LeuHis: 2.444 ± 0.045
3.572LeuIle: 3.572 ± 0.057
1.661LeuLys: 1.661 ± 0.034
11.082LeuLeu: 11.082 ± 0.103
1.561LeuMet: 1.561 ± 0.033
1.867LeuAsn: 1.867 ± 0.037
6.347LeuPro: 6.347 ± 0.072
2.448LeuGln: 2.448 ± 0.035
8.938LeuArg: 8.938 ± 0.097
5.746LeuSer: 5.746 ± 0.059
6.205LeuThr: 6.205 ± 0.059
9.387LeuVal: 9.387 ± 0.093
1.198LeuTrp: 1.198 ± 0.03
1.528LeuTyr: 1.528 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
2.183MetAla: 2.183 ± 0.037
0.154MetCys: 0.154 ± 0.009
0.848MetAsp: 0.848 ± 0.02
0.687MetGlu: 0.687 ± 0.021
0.523MetPhe: 0.523 ± 0.019
1.399MetGly: 1.399 ± 0.033
0.372MetHis: 0.372 ± 0.013
0.792MetIle: 0.792 ± 0.023
0.36MetLys: 0.36 ± 0.015
1.972MetLeu: 1.972 ± 0.034
0.337MetMet: 0.337 ± 0.016
0.418MetAsn: 0.418 ± 0.017
1.189MetPro: 1.189 ± 0.027
0.55MetGln: 0.55 ± 0.017
1.636MetArg: 1.636 ± 0.034
1.517MetSer: 1.517 ± 0.03
1.586MetThr: 1.586 ± 0.033
1.381MetVal: 1.381 ± 0.03
0.221MetTrp: 0.221 ± 0.01
0.268MetTyr: 0.268 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.453AsnAla: 2.453 ± 0.038
0.167AsnCys: 0.167 ± 0.01
1.054AsnAsp: 1.054 ± 0.026
0.932AsnGlu: 0.932 ± 0.024
0.552AsnPhe: 0.552 ± 0.019
1.882AsnGly: 1.882 ± 0.037
0.425AsnHis: 0.425 ± 0.014
0.695AsnIle: 0.695 ± 0.02
0.402AsnLys: 0.402 ± 0.016
1.877AsnLeu: 1.877 ± 0.034
0.321AsnMet: 0.321 ± 0.013
0.452AsnAsn: 0.452 ± 0.017
1.731AsnPro: 1.731 ± 0.034
0.589AsnGln: 0.589 ± 0.017
1.445AsnArg: 1.445 ± 0.03
1.04AsnSer: 1.04 ± 0.028
1.151AsnThr: 1.151 ± 0.031
1.442AsnVal: 1.442 ± 0.034
0.308AsnTrp: 0.308 ± 0.015
0.442AsnTyr: 0.442 ± 0.017
0.0AsnXaa: 0.0 ± 0.0
Pro
7.441ProAla: 7.441 ± 0.088
0.328ProCys: 0.328 ± 0.015
4.534ProAsp: 4.534 ± 0.055
5.016ProGlu: 5.016 ± 0.058
1.572ProPhe: 1.572 ± 0.031
6.214ProGly: 6.214 ± 0.076
1.303ProHis: 1.303 ± 0.028
1.766ProIle: 1.766 ± 0.032
1.272ProLys: 1.272 ± 0.036
5.09ProLeu: 5.09 ± 0.065
1.159ProMet: 1.159 ± 0.027
1.19ProAsn: 1.19 ± 0.028
3.313ProPro: 3.313 ± 0.077
2.084ProGln: 2.084 ± 0.047
3.665ProArg: 3.665 ± 0.053
3.071ProSer: 3.071 ± 0.047
3.14ProThr: 3.14 ± 0.05
5.271ProVal: 5.271 ± 0.066
0.86ProTrp: 0.86 ± 0.024
0.991ProTyr: 0.991 ± 0.024
0.0ProXaa: 0.0 ± 0.0
Gln
3.856GlnAla: 3.856 ± 0.05
0.187GlnCys: 0.187 ± 0.009
1.476GlnAsp: 1.476 ± 0.029
1.45GlnGlu: 1.45 ± 0.028
0.725GlnPhe: 0.725 ± 0.019
2.248GlnGly: 2.248 ± 0.046
0.808GlnHis: 0.808 ± 0.022
1.233GlnIle: 1.233 ± 0.032
0.543GlnLys: 0.543 ± 0.019
3.312GlnLeu: 3.312 ± 0.045
0.515GlnMet: 0.515 ± 0.018
0.586GlnAsn: 0.586 ± 0.02
2.003GlnPro: 2.003 ± 0.053
1.686GlnGln: 1.686 ± 0.038
3.162GlnArg: 3.162 ± 0.047
1.256GlnSer: 1.256 ± 0.028
1.294GlnThr: 1.294 ± 0.028
2.886GlnVal: 2.886 ± 0.045
0.477GlnTrp: 0.477 ± 0.017
0.523GlnTyr: 0.523 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
9.159ArgAla: 9.159 ± 0.091
0.647ArgCys: 0.647 ± 0.02
4.621ArgAsp: 4.621 ± 0.056
5.205ArgGlu: 5.205 ± 0.054
2.531ArgPhe: 2.531 ± 0.043
5.816ArgGly: 5.816 ± 0.062
1.848ArgHis: 1.848 ± 0.036
3.159ArgIle: 3.159 ± 0.047
1.808ArgLys: 1.808 ± 0.038
8.109ArgLeu: 8.109 ± 0.081
1.912ArgMet: 1.912 ± 0.034
1.597ArgAsn: 1.597 ± 0.036
4.332ArgPro: 4.332 ± 0.059
2.175ArgGln: 2.175 ± 0.037
7.069ArgArg: 7.069 ± 0.083
4.299ArgSer: 4.299 ± 0.052
4.674ArgThr: 4.674 ± 0.066
6.026ArgVal: 6.026 ± 0.061
1.398ArgTrp: 1.398 ± 0.03
1.801ArgTyr: 1.801 ± 0.039
0.0ArgXaa: 0.0 ± 0.0
Ser
6.861SerAla: 6.861 ± 0.066
0.428SerCys: 0.428 ± 0.018
2.976SerAsp: 2.976 ± 0.045
2.969SerGlu: 2.969 ± 0.046
1.612SerPhe: 1.612 ± 0.031
6.12SerGly: 6.12 ± 0.068
0.973SerHis: 0.973 ± 0.026
1.726SerIle: 1.726 ± 0.034
1.046SerLys: 1.046 ± 0.026
5.058SerLeu: 5.058 ± 0.062
1.24SerMet: 1.24 ± 0.026
0.971SerAsn: 0.971 ± 0.021
3.035SerPro: 3.035 ± 0.047
1.396SerGln: 1.396 ± 0.032
3.731SerArg: 3.731 ± 0.048
3.077SerSer: 3.077 ± 0.08
3.21SerThr: 3.21 ± 0.05
4.334SerVal: 4.334 ± 0.046
0.946SerTrp: 0.946 ± 0.025
1.117SerTyr: 1.117 ± 0.026
0.0SerXaa: 0.0 ± 0.0
Thr
7.745ThrAla: 7.745 ± 0.081
0.44ThrCys: 0.44 ± 0.021
3.64ThrAsp: 3.64 ± 0.048
3.601ThrGlu: 3.601 ± 0.046
1.635ThrPhe: 1.635 ± 0.032
6.444ThrGly: 6.444 ± 0.072
1.158ThrHis: 1.158 ± 0.027
1.935ThrIle: 1.935 ± 0.039
1.132ThrLys: 1.132 ± 0.027
4.917ThrLeu: 4.917 ± 0.058
0.967ThrMet: 0.967 ± 0.026
1.074ThrAsn: 1.074 ± 0.029
3.88ThrPro: 3.88 ± 0.051
1.353ThrGln: 1.353 ± 0.031
3.872ThrArg: 3.872 ± 0.049
3.273ThrSer: 3.273 ± 0.046
3.752ThrThr: 3.752 ± 0.057
5.008ThrVal: 5.008 ± 0.058
0.911ThrTrp: 0.911 ± 0.026
1.138ThrTyr: 1.138 ± 0.024
0.0ThrXaa: 0.0 ± 0.0
Val
10.834ValAla: 10.834 ± 0.1
0.702ValCys: 0.702 ± 0.019
5.664ValAsp: 5.664 ± 0.066
5.496ValGlu: 5.496 ± 0.071
2.573ValPhe: 2.573 ± 0.045
6.85ValGly: 6.85 ± 0.063
2.037ValHis: 2.037 ± 0.038
3.145ValIle: 3.145 ± 0.045
1.481ValLys: 1.481 ± 0.033
10.579ValLeu: 10.579 ± 0.108
1.285ValMet: 1.285 ± 0.029
1.784ValAsn: 1.784 ± 0.033
5.109ValPro: 5.109 ± 0.059
2.29ValGln: 2.29 ± 0.037
6.854ValArg: 6.854 ± 0.075
4.527ValSer: 4.527 ± 0.046
5.052ValThr: 5.052 ± 0.062
8.697ValVal: 8.697 ± 0.09
0.972ValTrp: 0.972 ± 0.023
1.301ValTyr: 1.301 ± 0.024
0.0ValXaa: 0.0 ± 0.0
Trp
1.501TrpAla: 1.501 ± 0.033
0.156TrpCys: 0.156 ± 0.009
0.783TrpAsp: 0.783 ± 0.02
0.735TrpGlu: 0.735 ± 0.022
0.538TrpPhe: 0.538 ± 0.018
1.066TrpGly: 1.066 ± 0.025
0.358TrpHis: 0.358 ± 0.014
0.571TrpIle: 0.571 ± 0.019
0.34TrpLys: 0.34 ± 0.014
1.812TrpLeu: 1.812 ± 0.035
0.344TrpMet: 0.344 ± 0.017
0.369TrpAsn: 0.369 ± 0.014
0.772TrpPro: 0.772 ± 0.023
0.571TrpGln: 0.571 ± 0.017
1.271TrpArg: 1.271 ± 0.029
0.877TrpSer: 0.877 ± 0.025
0.896TrpThr: 0.896 ± 0.023
1.083TrpVal: 1.083 ± 0.025
0.342TrpTrp: 0.342 ± 0.013
0.286TrpTyr: 0.286 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.221TyrAla: 2.221 ± 0.034
0.172TyrCys: 0.172 ± 0.01
1.236TyrAsp: 1.236 ± 0.03
0.971TyrGlu: 0.971 ± 0.026
0.658TyrPhe: 0.658 ± 0.022
1.851TyrGly: 1.851 ± 0.035
0.404TyrHis: 0.404 ± 0.016
0.441TyrIle: 0.441 ± 0.018
0.309TyrLys: 0.309 ± 0.014
2.112TyrLeu: 2.112 ± 0.04
0.22TyrMet: 0.22 ± 0.012
0.358TyrAsn: 0.358 ± 0.015
1.09TyrPro: 1.09 ± 0.024
0.624TyrGln: 0.624 ± 0.019
1.734TyrArg: 1.734 ± 0.035
0.996TyrSer: 0.996 ± 0.025
1.026TyrThr: 1.026 ± 0.024
1.471TyrVal: 1.471 ± 0.033
0.303TyrTrp: 0.303 ± 0.014
0.456TyrTyr: 0.456 ± 0.017
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 5595 proteins (1855314 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