Amino acid dipepetide frequency for Coregonus sp. balchen

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
5.419AlaAla: 5.419 ± 0.032
1.273AlaCys: 1.273 ± 0.016
2.878AlaAsp: 2.878 ± 0.015
4.333AlaGlu: 4.333 ± 0.026
2.182AlaPhe: 2.182 ± 0.015
4.345AlaGly: 4.345 ± 0.022
1.496AlaHis: 1.496 ± 0.012
2.56AlaIle: 2.56 ± 0.014
3.214AlaLys: 3.214 ± 0.019
6.317AlaLeu: 6.317 ± 0.029
1.704AlaMet: 1.704 ± 0.012
2.085AlaAsn: 2.085 ± 0.013
3.801AlaPro: 3.801 ± 0.026
2.942AlaGln: 2.942 ± 0.018
3.085AlaArg: 3.085 ± 0.019
5.321AlaSer: 5.321 ± 0.026
3.608AlaThr: 3.608 ± 0.018
4.615AlaVal: 4.615 ± 0.019
0.678AlaTrp: 0.678 ± 0.008
1.436AlaTyr: 1.436 ± 0.009
0.0AlaXaa: 0.0 ± 0.0
Cys
1.107CysAla: 1.107 ± 0.01
0.663CysCys: 0.663 ± 0.009
1.084CysAsp: 1.084 ± 0.012
1.19CysGlu: 1.19 ± 0.012
0.8CysPhe: 0.8 ± 0.008
1.54CysGly: 1.54 ± 0.015
0.674CysHis: 0.674 ± 0.009
0.896CysIle: 0.896 ± 0.01
1.037CysLys: 1.037 ± 0.01
2.259CysLeu: 2.259 ± 0.022
0.484CysMet: 0.484 ± 0.005
0.804CysAsn: 0.804 ± 0.009
1.407CysPro: 1.407 ± 0.016
1.027CysGln: 1.027 ± 0.011
1.25CysArg: 1.25 ± 0.011
2.125CysSer: 2.125 ± 0.018
1.162CysThr: 1.162 ± 0.013
1.593CysVal: 1.593 ± 0.016
0.287CysTrp: 0.287 ± 0.005
0.641CysTyr: 0.641 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
2.611AspAla: 2.611 ± 0.014
1.134AspCys: 1.134 ± 0.012
2.93AspAsp: 2.93 ± 0.023
3.423AspGlu: 3.423 ± 0.019
1.894AspPhe: 1.894 ± 0.012
3.523AspGly: 3.523 ± 0.021
1.276AspHis: 1.276 ± 0.014
2.607AspIle: 2.607 ± 0.021
2.561AspLys: 2.561 ± 0.015
4.758AspLeu: 4.758 ± 0.019
1.402AspMet: 1.402 ± 0.013
1.99AspAsn: 1.99 ± 0.014
3.031AspPro: 3.031 ± 0.019
2.113AspGln: 2.113 ± 0.016
2.947AspArg: 2.947 ± 0.02
4.456AspSer: 4.456 ± 0.027
2.896AspThr: 2.896 ± 0.02
3.07AspVal: 3.07 ± 0.019
0.69AspTrp: 0.69 ± 0.011
1.527AspTyr: 1.527 ± 0.015
0.0AspXaa: 0.0 ± 0.0
Glu
4.561GluAla: 4.561 ± 0.024
1.189GluCys: 1.189 ± 0.013
4.375GluAsp: 4.375 ± 0.023
8.527GluGlu: 8.527 ± 0.061
1.788GluPhe: 1.788 ± 0.012
4.929GluGly: 4.929 ± 0.03
1.445GluHis: 1.445 ± 0.01
2.608GluIle: 2.608 ± 0.024
4.406GluLys: 4.406 ± 0.029
5.768GluLeu: 5.768 ± 0.03
1.813GluMet: 1.813 ± 0.012
2.515GluAsn: 2.515 ± 0.016
2.95GluPro: 2.95 ± 0.025
3.008GluGln: 3.008 ± 0.018
4.9GluArg: 4.9 ± 0.033
4.264GluSer: 4.264 ± 0.023
3.572GluThr: 3.572 ± 0.02
4.486GluVal: 4.486 ± 0.026
0.686GluTrp: 0.686 ± 0.008
1.483GluTyr: 1.483 ± 0.012
0.0GluXaa: 0.0 ± 0.0
Phe
1.643PheAla: 1.643 ± 0.011
0.852PheCys: 0.852 ± 0.009
1.592PheAsp: 1.592 ± 0.012
1.654PheGlu: 1.654 ± 0.012
1.353PhePhe: 1.353 ± 0.013
2.018PheGly: 2.018 ± 0.015
0.977PheHis: 0.977 ± 0.011
1.679PheIle: 1.679 ± 0.017
1.618PheLys: 1.618 ± 0.012
3.54PheLeu: 3.54 ± 0.024
0.772PheMet: 0.772 ± 0.008
1.384PheAsn: 1.384 ± 0.011
1.796PhePro: 1.796 ± 0.013
1.534PheGln: 1.534 ± 0.01
1.739PheArg: 1.739 ± 0.015
3.157PheSer: 3.157 ± 0.017
2.143PheThr: 2.143 ± 0.015
1.935PheVal: 1.935 ± 0.012
0.433PheTrp: 0.433 ± 0.006
1.105PheTyr: 1.105 ± 0.012
0.0PheXaa: 0.0 ± 0.0
Gly
4.175GlyAla: 4.175 ± 0.021
1.297GlyCys: 1.297 ± 0.009
3.441GlyAsp: 3.441 ± 0.019
4.777GlyGlu: 4.777 ± 0.028
2.245GlyPhe: 2.245 ± 0.015
6.658GlyGly: 6.658 ± 0.048
1.792GlyHis: 1.792 ± 0.013
2.427GlyIle: 2.427 ± 0.016
3.526GlyLys: 3.526 ± 0.018
5.769GlyLeu: 5.769 ± 0.03
1.646GlyMet: 1.646 ± 0.013
2.452GlyAsn: 2.452 ± 0.017
3.674GlyPro: 3.674 ± 0.035
3.091GlyGln: 3.091 ± 0.018
4.089GlyArg: 4.089 ± 0.026
5.962GlySer: 5.962 ± 0.033
3.632GlyThr: 3.632 ± 0.024
4.244GlyVal: 4.244 ± 0.019
0.839GlyTrp: 0.839 ± 0.011
1.896GlyTyr: 1.896 ± 0.024
0.0GlyXaa: 0.0 ± 0.0
His
1.321HisAla: 1.321 ± 0.01
0.778HisCys: 0.778 ± 0.009
0.973HisAsp: 0.973 ± 0.009
1.106HisGlu: 1.106 ± 0.009
0.997HisPhe: 0.997 ± 0.008
1.651HisGly: 1.651 ± 0.015
1.284HisHis: 1.284 ± 0.017
1.293HisIle: 1.293 ± 0.018
1.217HisLys: 1.217 ± 0.009
2.75HisLeu: 2.75 ± 0.019
0.697HisMet: 0.697 ± 0.007
1.097HisAsn: 1.097 ± 0.016
1.913HisPro: 1.913 ± 0.016
1.38HisGln: 1.38 ± 0.012
1.748HisArg: 1.748 ± 0.012
2.664HisSer: 2.664 ± 0.02
1.872HisThr: 1.872 ± 0.017
1.411HisVal: 1.411 ± 0.013
0.35HisTrp: 0.35 ± 0.005
0.929HisTyr: 0.929 ± 0.015
0.0HisXaa: 0.0 ± 0.0
Ile
2.33IleAla: 2.33 ± 0.014
0.951IleCys: 0.951 ± 0.009
1.977IleAsp: 1.977 ± 0.017
2.275IleGlu: 2.275 ± 0.016
1.524IlePhe: 1.524 ± 0.012
2.219IleGly: 2.219 ± 0.016
1.235IleHis: 1.235 ± 0.011
2.169IleIle: 2.169 ± 0.017
2.29IleLys: 2.29 ± 0.018
4.019IleLeu: 4.019 ± 0.023
1.032IleMet: 1.032 ± 0.009
1.8IleAsn: 1.8 ± 0.019
2.512IlePro: 2.512 ± 0.016
2.088IleGln: 2.088 ± 0.02
2.212IleArg: 2.212 ± 0.014
3.504IleSer: 3.504 ± 0.02
2.818IleThr: 2.818 ± 0.021
2.439IleVal: 2.439 ± 0.02
0.452IleTrp: 0.452 ± 0.007
1.26IleTyr: 1.26 ± 0.018
0.0IleXaa: 0.0 ± 0.0
Lys
3.573LysAla: 3.573 ± 0.018
0.962LysCys: 0.962 ± 0.01
3.062LysAsp: 3.062 ± 0.016
4.564LysGlu: 4.564 ± 0.029
1.371LysPhe: 1.371 ± 0.011
3.258LysGly: 3.258 ± 0.021
1.333LysHis: 1.333 ± 0.012
2.157LysIle: 2.157 ± 0.015
4.05LysLys: 4.05 ± 0.029
4.469LysLeu: 4.469 ± 0.023
1.467LysMet: 1.467 ± 0.012
1.974LysAsn: 1.974 ± 0.013
2.934LysPro: 2.934 ± 0.023
2.356LysGln: 2.356 ± 0.016
3.43LysArg: 3.43 ± 0.015
3.48LysSer: 3.48 ± 0.021
3.089LysThr: 3.089 ± 0.018
3.317LysVal: 3.317 ± 0.02
0.553LysTrp: 0.553 ± 0.007
1.353LysTyr: 1.353 ± 0.01
0.0LysXaa: 0.0 ± 0.0
Leu
5.915LeuAla: 5.915 ± 0.027
2.243LeuCys: 2.243 ± 0.015
4.675LeuAsp: 4.675 ± 0.024
6.229LeuGlu: 6.229 ± 0.032
3.212LeuPhe: 3.212 ± 0.027
5.495LeuGly: 5.495 ± 0.031
2.762LeuHis: 2.762 ± 0.02
3.475LeuIle: 3.475 ± 0.021
5.085LeuLys: 5.085 ± 0.024
9.779LeuLeu: 9.779 ± 0.048
2.067LeuMet: 2.067 ± 0.012
3.46LeuAsn: 3.46 ± 0.02
5.712LeuPro: 5.712 ± 0.03
5.276LeuGln: 5.276 ± 0.029
5.479LeuArg: 5.479 ± 0.024
8.587LeuSer: 8.587 ± 0.04
5.36LeuThr: 5.36 ± 0.027
5.496LeuVal: 5.496 ± 0.029
1.088LeuTrp: 1.088 ± 0.011
2.645LeuTyr: 2.645 ± 0.021
0.0LeuXaa: 0.0 ± 0.0
Met
2.029MetAla: 2.029 ± 0.012
0.463MetCys: 0.463 ± 0.006
1.532MetAsp: 1.532 ± 0.011
2.183MetGlu: 2.183 ± 0.014
0.826MetPhe: 0.826 ± 0.008
1.674MetGly: 1.674 ± 0.012
0.503MetHis: 0.503 ± 0.006
0.852MetIle: 0.852 ± 0.01
1.423MetLys: 1.423 ± 0.01
2.058MetLeu: 2.058 ± 0.013
0.758MetMet: 0.758 ± 0.009
0.882MetAsn: 0.882 ± 0.009
1.199MetPro: 1.199 ± 0.013
0.976MetGln: 0.976 ± 0.009
1.259MetArg: 1.259 ± 0.012
1.958MetSer: 1.958 ± 0.016
1.373MetThr: 1.373 ± 0.012
1.745MetVal: 1.745 ± 0.014
0.263MetTrp: 0.263 ± 0.004
0.645MetTyr: 0.645 ± 0.006
0.0MetXaa: 0.0 ± 0.0
Asn
2.017AsnAla: 2.017 ± 0.013
0.832AsnCys: 0.832 ± 0.009
1.571AsnAsp: 1.571 ± 0.013
1.877AsnGlu: 1.877 ± 0.013
1.213AsnPhe: 1.213 ± 0.009
2.767AsnGly: 2.767 ± 0.021
1.07AsnHis: 1.07 ± 0.014
1.992AsnIle: 1.992 ± 0.016
2.023AsnLys: 2.023 ± 0.014
3.406AsnLeu: 3.406 ± 0.024
1.075AsnMet: 1.075 ± 0.009
1.777AsnAsn: 1.777 ± 0.015
2.37AsnPro: 2.37 ± 0.019
1.743AsnGln: 1.743 ± 0.014
2.028AsnArg: 2.028 ± 0.018
3.091AsnSer: 3.091 ± 0.022
2.454AsnThr: 2.454 ± 0.021
2.216AsnVal: 2.216 ± 0.013
0.431AsnTrp: 0.431 ± 0.007
1.092AsnTyr: 1.092 ± 0.01
0.0AsnXaa: 0.0 ± 0.0
Pro
4.339ProAla: 4.339 ± 0.031
1.204ProCys: 1.204 ± 0.012
2.976ProAsp: 2.976 ± 0.022
3.891ProGlu: 3.891 ± 0.023
1.772ProPhe: 1.772 ± 0.015
4.436ProGly: 4.436 ± 0.032
1.771ProHis: 1.771 ± 0.016
2.084ProIle: 2.084 ± 0.02
2.62ProLys: 2.62 ± 0.023
5.471ProLeu: 5.471 ± 0.026
1.234ProMet: 1.234 ± 0.01
2.061ProAsn: 2.061 ± 0.018
6.191ProPro: 6.191 ± 0.047
3.019ProGln: 3.019 ± 0.025
3.033ProArg: 3.033 ± 0.02
6.355ProSer: 6.355 ± 0.036
3.72ProThr: 3.72 ± 0.028
4.022ProVal: 4.022 ± 0.027
0.624ProTrp: 0.624 ± 0.01
1.513ProTyr: 1.513 ± 0.02
0.0ProXaa: 0.0 ± 0.0
Gln
3.301GlnAla: 3.301 ± 0.021
1.011GlnCys: 1.011 ± 0.013
2.373GlnAsp: 2.373 ± 0.016
3.504GlnGlu: 3.504 ± 0.018
1.241GlnPhe: 1.241 ± 0.01
3.173GlnGly: 3.173 ± 0.019
1.468GlnHis: 1.468 ± 0.013
1.731GlnIle: 1.731 ± 0.012
2.302GlnLys: 2.302 ± 0.016
4.335GlnLeu: 4.335 ± 0.028
1.114GlnMet: 1.114 ± 0.01
1.7GlnAsn: 1.7 ± 0.013
3.029GlnPro: 3.029 ± 0.025
3.254GlnGln: 3.254 ± 0.04
3.231GlnArg: 3.231 ± 0.023
3.651GlnSer: 3.651 ± 0.025
2.793GlnThr: 2.793 ± 0.03
2.749GlnVal: 2.749 ± 0.016
0.55GlnTrp: 0.55 ± 0.009
1.29GlnTyr: 1.29 ± 0.015
0.0GlnXaa: 0.0 ± 0.0
Arg
3.508ArgAla: 3.508 ± 0.018
1.213ArgCys: 1.213 ± 0.012
3.101ArgAsp: 3.101 ± 0.02
4.505ArgGlu: 4.505 ± 0.034
1.755ArgPhe: 1.755 ± 0.013
4.163ArgGly: 4.163 ± 0.029
1.631ArgHis: 1.631 ± 0.014
2.144ArgIle: 2.144 ± 0.013
3.457ArgLys: 3.457 ± 0.018
5.223ArgLeu: 5.223 ± 0.03
1.375ArgMet: 1.375 ± 0.011
2.032ArgAsn: 2.032 ± 0.016
3.247ArgPro: 3.247 ± 0.022
2.778ArgGln: 2.778 ± 0.02
4.663ArgArg: 4.663 ± 0.024
4.466ArgSer: 4.466 ± 0.023
3.04ArgThr: 3.04 ± 0.019
3.486ArgVal: 3.486 ± 0.02
0.687ArgTrp: 0.687 ± 0.007
1.498ArgTyr: 1.498 ± 0.015
0.0ArgXaa: 0.0 ± 0.0
Ser
5.271SerAla: 5.271 ± 0.027
1.886SerCys: 1.886 ± 0.015
4.225SerAsp: 4.225 ± 0.027
4.835SerGlu: 4.835 ± 0.024
2.81SerPhe: 2.81 ± 0.016
5.66SerGly: 5.66 ± 0.028
2.392SerHis: 2.392 ± 0.019
3.303SerIle: 3.303 ± 0.023
3.787SerLys: 3.787 ± 0.022
8.609SerLeu: 8.609 ± 0.038
1.95SerMet: 1.95 ± 0.012
2.951SerAsn: 2.951 ± 0.019
6.769SerPro: 6.769 ± 0.05
4.088SerGln: 4.088 ± 0.026
4.443SerArg: 4.443 ± 0.025
10.161SerSer: 10.161 ± 0.059
5.288SerThr: 5.288 ± 0.034
5.479SerVal: 5.479 ± 0.028
0.982SerTrp: 0.982 ± 0.01
2.159SerTyr: 2.159 ± 0.017
0.0SerXaa: 0.0 ± 0.0
Thr
4.16ThrAla: 4.16 ± 0.03
1.321ThrCys: 1.321 ± 0.016
2.995ThrAsp: 2.995 ± 0.016
3.963ThrGlu: 3.963 ± 0.029
1.983ThrPhe: 1.983 ± 0.013
3.99ThrGly: 3.99 ± 0.023
1.65ThrHis: 1.65 ± 0.017
2.468ThrIle: 2.468 ± 0.018
2.675ThrLys: 2.675 ± 0.018
5.693ThrLeu: 5.693 ± 0.031
1.41ThrMet: 1.41 ± 0.015
2.026ThrAsn: 2.026 ± 0.018
4.34ThrPro: 4.34 ± 0.032
2.646ThrGln: 2.646 ± 0.019
2.632ThrArg: 2.632 ± 0.017
5.089ThrSer: 5.089 ± 0.033
4.18ThrThr: 4.18 ± 0.055
4.364ThrVal: 4.364 ± 0.028
0.672ThrTrp: 0.672 ± 0.008
1.408ThrTyr: 1.408 ± 0.01
0.0ThrXaa: 0.0 ± 0.0
Val
4.001ValAla: 4.001 ± 0.019
1.753ValCys: 1.753 ± 0.016
3.125ValAsp: 3.125 ± 0.02
4.247ValGlu: 4.247 ± 0.024
2.453ValPhe: 2.453 ± 0.019
3.718ValGly: 3.718 ± 0.021
1.529ValHis: 1.529 ± 0.013
2.824ValIle: 2.824 ± 0.021
3.448ValLys: 3.448 ± 0.02
6.12ValLeu: 6.12 ± 0.032
1.582ValMet: 1.582 ± 0.013
2.381ValAsn: 2.381 ± 0.014
3.527ValPro: 3.527 ± 0.025
2.745ValGln: 2.745 ± 0.017
3.31ValArg: 3.31 ± 0.021
5.366ValSer: 5.366 ± 0.026
4.189ValThr: 4.189 ± 0.028
4.589ValVal: 4.589 ± 0.033
0.801ValTrp: 0.801 ± 0.008
1.814ValTyr: 1.814 ± 0.017
0.0ValXaa: 0.0 ± 0.0
Trp
0.695TrpAla: 0.695 ± 0.008
0.259TrpCys: 0.259 ± 0.005
0.636TrpAsp: 0.636 ± 0.007
0.752TrpGlu: 0.752 ± 0.011
0.442TrpPhe: 0.442 ± 0.007
0.729TrpGly: 0.729 ± 0.008
0.282TrpHis: 0.282 ± 0.004
0.489TrpIle: 0.489 ± 0.006
0.686TrpLys: 0.686 ± 0.008
1.133TrpLeu: 1.133 ± 0.009
0.34TrpMet: 0.34 ± 0.005
0.489TrpAsn: 0.489 ± 0.007
0.463TrpPro: 0.463 ± 0.006
0.463TrpGln: 0.463 ± 0.005
0.831TrpArg: 0.831 ± 0.008
0.947TrpSer: 0.947 ± 0.012
0.722TrpThr: 0.722 ± 0.009
0.749TrpVal: 0.749 ± 0.009
0.199TrpTrp: 0.199 ± 0.005
0.342TrpTyr: 0.342 ± 0.007
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.317TyrAla: 1.317 ± 0.011
0.748TyrCys: 0.748 ± 0.011
1.318TyrAsp: 1.318 ± 0.011
1.44TyrGlu: 1.44 ± 0.01
1.063TyrPhe: 1.063 ± 0.01
1.686TyrGly: 1.686 ± 0.014
0.862TyrHis: 0.862 ± 0.014
1.348TyrIle: 1.348 ± 0.015
1.323TyrLys: 1.323 ± 0.012
2.563TyrLeu: 2.563 ± 0.018
0.677TyrMet: 0.677 ± 0.007
1.185TyrAsn: 1.185 ± 0.013
1.474TyrPro: 1.474 ± 0.018
1.274TyrGln: 1.274 ± 0.016
1.662TyrArg: 1.662 ± 0.019
2.444TyrSer: 2.444 ± 0.028
1.753TyrThr: 1.753 ± 0.023
1.515TyrVal: 1.515 ± 0.012
0.382TyrTrp: 0.382 ± 0.006
0.993TyrTyr: 0.993 ± 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
0.018XaaXaa: 0.018 ± 0.006
Statistics based on 41641 proteins (18652202 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