Amino acid dipepetide frequency for Saccharothrix sp. ALI-22-I

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
18.592AlaAla: 18.592 ± 0.123
0.988AlaCys: 0.988 ± 0.022
8.379AlaAsp: 8.379 ± 0.056
8.344AlaGlu: 8.344 ± 0.067
3.551AlaPhe: 3.551 ± 0.039
11.886AlaGly: 11.886 ± 0.071
2.755AlaHis: 2.755 ± 0.037
3.859AlaIle: 3.859 ± 0.041
2.702AlaLys: 2.702 ± 0.04
14.02AlaLeu: 14.02 ± 0.096
2.407AlaMet: 2.407 ± 0.032
2.415AlaAsn: 2.415 ± 0.034
5.9AlaPro: 5.9 ± 0.062
3.569AlaGln: 3.569 ± 0.041
9.401AlaArg: 9.401 ± 0.058
5.744AlaSer: 5.744 ± 0.048
7.115AlaThr: 7.115 ± 0.05
12.648AlaVal: 12.648 ± 0.086
1.913AlaTrp: 1.913 ± 0.025
2.333AlaTyr: 2.333 ± 0.027
0.0AlaXaa: 0.0 ± 0.0
Cys
0.98CysAla: 0.98 ± 0.021
0.099CysCys: 0.099 ± 0.007
0.46CysAsp: 0.46 ± 0.013
0.383CysGlu: 0.383 ± 0.012
0.206CysPhe: 0.206 ± 0.01
0.898CysGly: 0.898 ± 0.023
0.192CysHis: 0.192 ± 0.007
0.15CysIle: 0.15 ± 0.007
0.107CysLys: 0.107 ± 0.006
0.71CysLeu: 0.71 ± 0.017
0.107CysMet: 0.107 ± 0.007
0.152CysAsn: 0.152 ± 0.008
0.444CysPro: 0.444 ± 0.013
0.183CysGln: 0.183 ± 0.009
0.596CysArg: 0.596 ± 0.013
0.425CysSer: 0.425 ± 0.013
0.499CysThr: 0.499 ± 0.015
0.656CysVal: 0.656 ± 0.017
0.13CysTrp: 0.13 ± 0.007
0.166CysTyr: 0.166 ± 0.007
0.0CysXaa: 0.0 ± 0.0
Asp
7.409AspAla: 7.409 ± 0.056
0.405AspCys: 0.405 ± 0.013
3.969AspAsp: 3.969 ± 0.043
3.989AspGlu: 3.989 ± 0.042
1.765AspPhe: 1.765 ± 0.028
6.391AspGly: 6.391 ± 0.06
1.615AspHis: 1.615 ± 0.027
1.803AspIle: 1.803 ± 0.027
1.09AspLys: 1.09 ± 0.023
6.829AspLeu: 6.829 ± 0.059
0.771AspMet: 0.771 ± 0.015
1.235AspAsn: 1.235 ± 0.022
4.491AspPro: 4.491 ± 0.039
1.863AspGln: 1.863 ± 0.024
5.294AspArg: 5.294 ± 0.052
2.587AspSer: 2.587 ± 0.03
3.174AspThr: 3.174 ± 0.034
5.92AspVal: 5.92 ± 0.048
1.041AspTrp: 1.041 ± 0.021
1.292AspTyr: 1.292 ± 0.022
0.0AspXaa: 0.0 ± 0.0
Glu
6.5GluAla: 6.5 ± 0.055
0.36GluCys: 0.36 ± 0.011
2.683GluAsp: 2.683 ± 0.039
2.759GluGlu: 2.759 ± 0.032
1.74GluPhe: 1.74 ± 0.025
3.549GluGly: 3.549 ± 0.034
1.758GluHis: 1.758 ± 0.029
2.129GluIle: 2.129 ± 0.026
1.119GluLys: 1.119 ± 0.023
7.059GluLeu: 7.059 ± 0.062
0.835GluMet: 0.835 ± 0.019
1.033GluAsn: 1.033 ± 0.023
3.404GluPro: 3.404 ± 0.044
2.346GluGln: 2.346 ± 0.031
5.017GluArg: 5.017 ± 0.046
2.436GluSer: 2.436 ± 0.033
2.522GluThr: 2.522 ± 0.033
5.263GluVal: 5.263 ± 0.045
0.88GluTrp: 0.88 ± 0.018
1.058GluTyr: 1.058 ± 0.022
0.0GluXaa: 0.0 ± 0.0
Phe
3.817PheAla: 3.817 ± 0.035
0.246PheCys: 0.246 ± 0.011
2.321PheAsp: 2.321 ± 0.032
1.493PheGlu: 1.493 ± 0.021
0.864PhePhe: 0.864 ± 0.018
3.235PheGly: 3.235 ± 0.041
0.676PheHis: 0.676 ± 0.015
0.735PheIle: 0.735 ± 0.017
0.47PheLys: 0.47 ± 0.016
2.635PheLeu: 2.635 ± 0.032
0.367PheMet: 0.367 ± 0.01
0.626PheAsn: 0.626 ± 0.017
1.423PhePro: 1.423 ± 0.024
0.731PheGln: 0.731 ± 0.016
1.969PheArg: 1.969 ± 0.025
1.558PheSer: 1.558 ± 0.025
2.274PheThr: 2.274 ± 0.028
2.509PheVal: 2.509 ± 0.03
0.427PheTrp: 0.427 ± 0.011
0.608PheTyr: 0.608 ± 0.015
0.0PheXaa: 0.0 ± 0.0
Gly
9.752GlyAla: 9.752 ± 0.062
0.775GlyCys: 0.775 ± 0.018
5.231GlyAsp: 5.231 ± 0.054
4.816GlyGlu: 4.816 ± 0.05
2.954GlyPhe: 2.954 ± 0.034
8.133GlyGly: 8.133 ± 0.089
2.226GlyHis: 2.226 ± 0.029
3.238GlyIle: 3.238 ± 0.035
2.319GlyLys: 2.319 ± 0.033
9.127GlyLeu: 9.127 ± 0.073
1.892GlyMet: 1.892 ± 0.03
1.948GlyAsn: 1.948 ± 0.036
4.632GlyPro: 4.632 ± 0.044
2.758GlyGln: 2.758 ± 0.04
7.111GlyArg: 7.111 ± 0.053
4.994GlySer: 4.994 ± 0.043
5.966GlyThr: 5.966 ± 0.053
8.529GlyVal: 8.529 ± 0.062
1.709GlyTrp: 1.709 ± 0.025
2.306GlyTyr: 2.306 ± 0.026
0.0GlyXaa: 0.0 ± 0.0
His
2.694HisAla: 2.694 ± 0.038
0.202HisCys: 0.202 ± 0.009
1.531HisAsp: 1.531 ± 0.026
1.302HisGlu: 1.302 ± 0.02
0.612HisPhe: 0.612 ± 0.015
2.321HisGly: 2.321 ± 0.032
0.769HisHis: 0.769 ± 0.019
0.638HisIle: 0.638 ± 0.015
0.328HisLys: 0.328 ± 0.011
2.459HisLeu: 2.459 ± 0.03
0.3HisMet: 0.3 ± 0.01
0.466HisAsn: 0.466 ± 0.014
1.732HisPro: 1.732 ± 0.028
0.699HisGln: 0.699 ± 0.017
2.22HisArg: 2.22 ± 0.029
1.017HisSer: 1.017 ± 0.018
1.256HisThr: 1.256 ± 0.023
2.071HisVal: 2.071 ± 0.028
0.39HisTrp: 0.39 ± 0.013
0.509HisTyr: 0.509 ± 0.013
0.0HisXaa: 0.0 ± 0.0
Ile
4.939IleAla: 4.939 ± 0.048
0.235IleCys: 0.235 ± 0.01
2.361IleAsp: 2.361 ± 0.031
1.932IleGlu: 1.932 ± 0.028
0.672IlePhe: 0.672 ± 0.016
3.714IleGly: 3.714 ± 0.037
0.55IleHis: 0.55 ± 0.012
0.842IleIle: 0.842 ± 0.019
0.687IleLys: 0.687 ± 0.015
2.121IleLeu: 2.121 ± 0.03
0.424IleMet: 0.424 ± 0.014
0.744IleAsn: 0.744 ± 0.018
1.738IlePro: 1.738 ± 0.024
0.69IleGln: 0.69 ± 0.017
2.262IleArg: 2.262 ± 0.027
1.773IleSer: 1.773 ± 0.024
2.539IleThr: 2.539 ± 0.031
2.799IleVal: 2.799 ± 0.035
0.36IleTrp: 0.36 ± 0.014
0.539IleTyr: 0.539 ± 0.016
0.0IleXaa: 0.0 ± 0.0
Lys
2.616LysAla: 2.616 ± 0.04
0.123LysCys: 0.123 ± 0.006
1.036LysAsp: 1.036 ± 0.024
0.827LysGlu: 0.827 ± 0.021
0.527LysPhe: 0.527 ± 0.014
1.405LysGly: 1.405 ± 0.025
0.468LysHis: 0.468 ± 0.012
0.842LysIle: 0.842 ± 0.017
0.515LysLys: 0.515 ± 0.015
2.126LysLeu: 2.126 ± 0.031
0.33LysMet: 0.33 ± 0.012
0.424LysAsn: 0.424 ± 0.013
1.397LysPro: 1.397 ± 0.024
0.642LysGln: 0.642 ± 0.016
1.488LysArg: 1.488 ± 0.021
1.083LysSer: 1.083 ± 0.022
1.209LysThr: 1.209 ± 0.021
1.948LysVal: 1.948 ± 0.029
0.317LysTrp: 0.317 ± 0.011
0.419LysTyr: 0.419 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
15.018LeuAla: 15.018 ± 0.112
0.791LeuCys: 0.791 ± 0.021
7.277LeuAsp: 7.277 ± 0.061
4.608LeuGlu: 4.608 ± 0.038
2.721LeuPhe: 2.721 ± 0.033
9.15LeuGly: 9.15 ± 0.068
2.401LeuHis: 2.401 ± 0.033
3.21LeuIle: 3.21 ± 0.039
1.839LeuLys: 1.839 ± 0.025
10.918LeuLeu: 10.918 ± 0.09
1.487LeuMet: 1.487 ± 0.022
1.828LeuAsn: 1.828 ± 0.028
6.338LeuPro: 6.338 ± 0.056
1.947LeuGln: 1.947 ± 0.029
9.007LeuArg: 9.007 ± 0.057
5.438LeuSer: 5.438 ± 0.04
6.511LeuThr: 6.511 ± 0.059
10.339LeuVal: 10.339 ± 0.074
1.389LeuTrp: 1.389 ± 0.023
1.731LeuTyr: 1.731 ± 0.024
0.0LeuXaa: 0.0 ± 0.0
Met
2.155MetAla: 2.155 ± 0.029
0.117MetCys: 0.117 ± 0.006
0.816MetAsp: 0.816 ± 0.016
0.604MetGlu: 0.604 ± 0.016
0.467MetPhe: 0.467 ± 0.012
1.192MetGly: 1.192 ± 0.02
0.358MetHis: 0.358 ± 0.012
0.653MetIle: 0.653 ± 0.016
0.372MetLys: 0.372 ± 0.011
1.679MetLeu: 1.679 ± 0.022
0.258MetMet: 0.258 ± 0.009
0.38MetAsn: 0.38 ± 0.013
1.053MetPro: 1.053 ± 0.022
0.414MetGln: 0.414 ± 0.013
1.475MetArg: 1.475 ± 0.023
1.283MetSer: 1.283 ± 0.024
1.482MetThr: 1.482 ± 0.021
1.409MetVal: 1.409 ± 0.023
0.207MetTrp: 0.207 ± 0.009
0.262MetTyr: 0.262 ± 0.009
0.0MetXaa: 0.0 ± 0.0
Asn
2.532AsnAla: 2.532 ± 0.039
0.176AsnCys: 0.176 ± 0.007
1.111AsnAsp: 1.111 ± 0.022
0.908AsnGlu: 0.908 ± 0.018
0.551AsnPhe: 0.551 ± 0.016
2.264AsnGly: 2.264 ± 0.041
0.468AsnHis: 0.468 ± 0.013
0.616AsnIle: 0.616 ± 0.014
0.377AsnLys: 0.377 ± 0.013
1.955AsnLeu: 1.955 ± 0.029
0.295AsnMet: 0.295 ± 0.01
0.55AsnAsn: 0.55 ± 0.019
1.595AsnPro: 1.595 ± 0.027
0.648AsnGln: 0.648 ± 0.019
1.529AsnArg: 1.529 ± 0.026
1.014AsnSer: 1.014 ± 0.022
1.296AsnThr: 1.296 ± 0.026
1.585AsnVal: 1.585 ± 0.029
0.323AsnTrp: 0.323 ± 0.012
0.5AsnTyr: 0.5 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
7.496ProAla: 7.496 ± 0.07
0.34ProCys: 0.34 ± 0.012
4.806ProAsp: 4.806 ± 0.051
3.959ProGlu: 3.959 ± 0.039
1.605ProPhe: 1.605 ± 0.022
5.903ProGly: 5.903 ± 0.052
1.315ProHis: 1.315 ± 0.024
1.59ProIle: 1.59 ± 0.024
1.149ProLys: 1.149 ± 0.023
5.107ProLeu: 5.107 ± 0.05
1.005ProMet: 1.005 ± 0.019
1.216ProAsn: 1.216 ± 0.024
3.552ProPro: 3.552 ± 0.063
1.596ProGln: 1.596 ± 0.027
3.683ProArg: 3.683 ± 0.04
3.104ProSer: 3.104 ± 0.04
3.65ProThr: 3.65 ± 0.045
5.75ProVal: 5.75 ± 0.051
0.94ProTrp: 0.94 ± 0.019
1.033ProTyr: 1.033 ± 0.02
0.0ProXaa: 0.0 ± 0.0
Gln
3.843GlnAla: 3.843 ± 0.044
0.169GlnCys: 0.169 ± 0.007
1.35GlnAsp: 1.35 ± 0.023
1.293GlnGlu: 1.293 ± 0.022
0.797GlnPhe: 0.797 ± 0.021
2.04GlnGly: 2.04 ± 0.024
0.702GlnHis: 0.702 ± 0.015
0.959GlnIle: 0.959 ± 0.023
0.489GlnLys: 0.489 ± 0.014
3.028GlnLeu: 3.028 ± 0.036
0.414GlnMet: 0.414 ± 0.013
0.526GlnAsn: 0.526 ± 0.015
1.804GlnPro: 1.804 ± 0.032
1.211GlnGln: 1.211 ± 0.029
2.63GlnArg: 2.63 ± 0.03
1.254GlnSer: 1.254 ± 0.023
1.334GlnThr: 1.334 ± 0.022
2.847GlnVal: 2.847 ± 0.031
0.59GlnTrp: 0.59 ± 0.018
0.583GlnTyr: 0.583 ± 0.014
0.0GlnXaa: 0.0 ± 0.0
Arg
9.338ArgAla: 9.338 ± 0.076
0.606ArgCys: 0.606 ± 0.016
4.483ArgAsp: 4.483 ± 0.036
4.464ArgGlu: 4.464 ± 0.045
2.636ArgPhe: 2.636 ± 0.031
5.642ArgGly: 5.642 ± 0.055
2.093ArgHis: 2.093 ± 0.027
3.08ArgIle: 3.08 ± 0.038
1.692ArgLys: 1.692 ± 0.027
8.91ArgLeu: 8.91 ± 0.068
1.842ArgMet: 1.842 ± 0.022
1.599ArgAsn: 1.599 ± 0.027
4.638ArgPro: 4.638 ± 0.04
2.399ArgGln: 2.399 ± 0.031
7.532ArgArg: 7.532 ± 0.067
4.084ArgSer: 4.084 ± 0.041
4.874ArgThr: 4.874 ± 0.042
6.66ArgVal: 6.66 ± 0.052
1.528ArgTrp: 1.528 ± 0.025
1.9ArgTyr: 1.9 ± 0.029
0.0ArgXaa: 0.0 ± 0.0
Ser
6.574SerAla: 6.574 ± 0.05
0.411SerCys: 0.411 ± 0.014
2.769SerAsp: 2.769 ± 0.031
2.262SerGlu: 2.262 ± 0.029
1.621SerPhe: 1.621 ± 0.026
5.809SerGly: 5.809 ± 0.051
0.995SerHis: 0.995 ± 0.019
1.567SerIle: 1.567 ± 0.024
0.935SerLys: 0.935 ± 0.018
4.719SerLeu: 4.719 ± 0.042
1.06SerMet: 1.06 ± 0.021
1.013SerAsn: 1.013 ± 0.021
3.131SerPro: 3.131 ± 0.037
1.226SerGln: 1.226 ± 0.022
3.713SerArg: 3.713 ± 0.036
2.98SerSer: 2.98 ± 0.04
3.599SerThr: 3.599 ± 0.039
4.525SerVal: 4.525 ± 0.04
1.009SerTrp: 1.009 ± 0.022
1.155SerTyr: 1.155 ± 0.021
0.0SerXaa: 0.0 ± 0.0
Thr
8.515ThrAla: 8.515 ± 0.061
0.47ThrCys: 0.47 ± 0.014
3.627ThrAsp: 3.627 ± 0.036
3.115ThrGlu: 3.115 ± 0.04
1.778ThrPhe: 1.778 ± 0.024
6.531ThrGly: 6.531 ± 0.052
1.167ThrHis: 1.167 ± 0.021
1.996ThrIle: 1.996 ± 0.03
1.182ThrLys: 1.182 ± 0.024
5.446ThrLeu: 5.446 ± 0.054
0.985ThrMet: 0.985 ± 0.019
1.253ThrAsn: 1.253 ± 0.027
4.16ThrPro: 4.16 ± 0.05
1.316ThrGln: 1.316 ± 0.023
4.043ThrArg: 4.043 ± 0.043
3.59ThrSer: 3.59 ± 0.044
4.818ThrThr: 4.818 ± 0.074
5.999ThrVal: 5.999 ± 0.053
1.065ThrTrp: 1.065 ± 0.02
1.271ThrTyr: 1.271 ± 0.024
0.0ThrXaa: 0.0 ± 0.0
Val
11.7ValAla: 11.7 ± 0.081
0.702ValCys: 0.702 ± 0.016
6.479ValAsp: 6.479 ± 0.047
5.608ValGlu: 5.608 ± 0.049
2.717ValPhe: 2.717 ± 0.032
7.378ValGly: 7.378 ± 0.062
2.162ValHis: 2.162 ± 0.027
3.038ValIle: 3.038 ± 0.033
1.731ValLys: 1.731 ± 0.03
10.974ValLeu: 10.974 ± 0.085
1.332ValMet: 1.332 ± 0.024
1.926ValAsn: 1.926 ± 0.032
5.463ValPro: 5.463 ± 0.055
2.285ValGln: 2.285 ± 0.031
7.544ValArg: 7.544 ± 0.054
4.611ValSer: 4.611 ± 0.042
5.888ValThr: 5.888 ± 0.054
10.399ValVal: 10.399 ± 0.095
1.241ValTrp: 1.241 ± 0.023
1.568ValTyr: 1.568 ± 0.022
0.0ValXaa: 0.0 ± 0.0
Trp
1.694TrpAla: 1.694 ± 0.024
0.154TrpCys: 0.154 ± 0.007
0.886TrpAsp: 0.886 ± 0.019
0.721TrpGlu: 0.721 ± 0.016
0.555TrpPhe: 0.555 ± 0.016
1.057TrpGly: 1.057 ± 0.02
0.427TrpHis: 0.427 ± 0.012
0.524TrpIle: 0.524 ± 0.014
0.304TrpLys: 0.304 ± 0.01
1.908TrpLeu: 1.908 ± 0.033
0.304TrpMet: 0.304 ± 0.008
0.487TrpAsn: 0.487 ± 0.016
0.839TrpPro: 0.839 ± 0.018
0.668TrpGln: 0.668 ± 0.018
1.52TrpArg: 1.52 ± 0.026
1.064TrpSer: 1.064 ± 0.021
1.145TrpThr: 1.145 ± 0.025
1.228TrpVal: 1.228 ± 0.023
0.376TrpTrp: 0.376 ± 0.014
0.339TrpTyr: 0.339 ± 0.011
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.358TyrAla: 2.358 ± 0.03
0.173TyrCys: 0.173 ± 0.008
1.357TyrAsp: 1.357 ± 0.028
1.064TyrGlu: 1.064 ± 0.021
0.645TyrPhe: 0.645 ± 0.015
1.917TyrGly: 1.917 ± 0.029
0.415TyrHis: 0.415 ± 0.011
0.451TyrIle: 0.451 ± 0.014
0.338TyrLys: 0.338 ± 0.012
2.219TyrLeu: 2.219 ± 0.029
0.22TyrMet: 0.22 ± 0.008
0.473TyrAsn: 0.473 ± 0.014
1.063TyrPro: 1.063 ± 0.023
0.671TyrGln: 0.671 ± 0.015
1.966TyrArg: 1.966 ± 0.026
1.033TyrSer: 1.033 ± 0.019
1.18TyrThr: 1.18 ± 0.021
1.662TyrVal: 1.662 ± 0.022
0.366TyrTrp: 0.366 ± 0.012
0.523TyrTyr: 0.523 ± 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 8733 proteins (2886714 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