Amino acid dipepetide frequency for Afipia sp. Root123D2

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
16.535AlaAla: 16.535 ± 0.181
1.038AlaCys: 1.038 ± 0.028
6.604AlaAsp: 6.604 ± 0.071
6.511AlaGlu: 6.511 ± 0.095
4.431AlaPhe: 4.431 ± 0.056
9.781AlaGly: 9.781 ± 0.086
2.244AlaHis: 2.244 ± 0.04
6.965AlaIle: 6.965 ± 0.077
5.015AlaLys: 5.015 ± 0.074
12.437AlaLeu: 12.437 ± 0.109
3.577AlaMet: 3.577 ± 0.053
3.207AlaAsn: 3.207 ± 0.054
5.455AlaPro: 5.455 ± 0.078
3.976AlaGln: 3.976 ± 0.059
8.132AlaArg: 8.132 ± 0.096
6.774AlaSer: 6.774 ± 0.082
6.341AlaThr: 6.341 ± 0.071
8.63AlaVal: 8.63 ± 0.087
1.339AlaTrp: 1.339 ± 0.029
2.534AlaTyr: 2.534 ± 0.045
0.001AlaXaa: 0.001 ± 0.001
Cys
1.004CysAla: 1.004 ± 0.029
0.107CysCys: 0.107 ± 0.009
0.499CysAsp: 0.499 ± 0.022
0.417CysGlu: 0.417 ± 0.018
0.337CysPhe: 0.337 ± 0.017
0.864CysGly: 0.864 ± 0.023
0.228CysHis: 0.228 ± 0.015
0.462CysIle: 0.462 ± 0.02
0.234CysLys: 0.234 ± 0.014
0.714CysLeu: 0.714 ± 0.025
0.169CysMet: 0.169 ± 0.012
0.206CysAsn: 0.206 ± 0.011
0.402CysPro: 0.402 ± 0.019
0.229CysGln: 0.229 ± 0.013
0.561CysArg: 0.561 ± 0.021
0.477CysSer: 0.477 ± 0.019
0.415CysThr: 0.415 ± 0.019
0.631CysVal: 0.631 ± 0.023
0.093CysTrp: 0.093 ± 0.009
0.196CysTyr: 0.196 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.672AspAla: 6.672 ± 0.082
0.419AspCys: 0.419 ± 0.016
3.312AspAsp: 3.312 ± 0.066
3.266AspGlu: 3.266 ± 0.05
2.087AspPhe: 2.087 ± 0.037
4.93AspGly: 4.93 ± 0.068
1.364AspHis: 1.364 ± 0.035
3.347AspIle: 3.347 ± 0.053
2.139AspLys: 2.139 ± 0.049
5.604AspLeu: 5.604 ± 0.062
1.316AspMet: 1.316 ± 0.034
1.515AspAsn: 1.515 ± 0.037
3.286AspPro: 3.286 ± 0.046
1.751AspGln: 1.751 ± 0.039
4.072AspArg: 4.072 ± 0.061
2.355AspSer: 2.355 ± 0.045
2.634AspThr: 2.634 ± 0.062
4.407AspVal: 4.407 ± 0.058
0.82AspTrp: 0.82 ± 0.025
1.442AspTyr: 1.442 ± 0.03
0.0AspXaa: 0.0 ± 0.0
Glu
6.492GluAla: 6.492 ± 0.087
0.323GluCys: 0.323 ± 0.013
2.396GluAsp: 2.396 ± 0.047
2.614GluGlu: 2.614 ± 0.053
1.862GluPhe: 1.862 ± 0.038
3.672GluGly: 3.672 ± 0.052
1.149GluHis: 1.149 ± 0.031
3.488GluIle: 3.488 ± 0.05
2.447GluLys: 2.447 ± 0.045
4.789GluLeu: 4.789 ± 0.071
1.446GluMet: 1.446 ± 0.037
1.596GluAsn: 1.596 ± 0.035
2.427GluPro: 2.427 ± 0.05
1.997GluGln: 1.997 ± 0.04
4.593GluArg: 4.593 ± 0.066
2.478GluSer: 2.478 ± 0.045
3.223GluThr: 3.223 ± 0.055
3.602GluVal: 3.602 ± 0.051
0.673GluTrp: 0.673 ± 0.022
0.969GluTyr: 0.969 ± 0.029
0.0GluXaa: 0.0 ± 0.0
Phe
4.732PheAla: 4.732 ± 0.061
0.421PheCys: 0.421 ± 0.019
2.637PheAsp: 2.637 ± 0.047
2.042PheGlu: 2.042 ± 0.038
1.47PhePhe: 1.47 ± 0.039
3.843PheGly: 3.843 ± 0.064
0.757PheHis: 0.757 ± 0.027
1.848PheIle: 1.848 ± 0.042
1.234PheLys: 1.234 ± 0.031
3.379PheLeu: 3.379 ± 0.058
0.861PheMet: 0.861 ± 0.029
1.179PheAsn: 1.179 ± 0.031
1.632PhePro: 1.632 ± 0.037
1.011PheGln: 1.011 ± 0.027
2.296PheArg: 2.296 ± 0.034
2.282PheSer: 2.282 ± 0.037
2.133PheThr: 2.133 ± 0.04
3.028PheVal: 3.028 ± 0.056
0.541PheTrp: 0.541 ± 0.022
0.937PheTyr: 0.937 ± 0.029
0.0PheXaa: 0.0 ± 0.0
Gly
8.82GlyAla: 8.82 ± 0.1
0.809GlyCys: 0.809 ± 0.026
4.254GlyAsp: 4.254 ± 0.064
4.275GlyGlu: 4.275 ± 0.059
3.634GlyPhe: 3.634 ± 0.056
7.11GlyGly: 7.11 ± 0.094
1.839GlyHis: 1.839 ± 0.041
4.906GlyIle: 4.906 ± 0.062
3.731GlyLys: 3.731 ± 0.059
8.481GlyLeu: 8.481 ± 0.085
2.216GlyMet: 2.216 ± 0.041
2.217GlyAsn: 2.217 ± 0.047
3.355GlyPro: 3.355 ± 0.056
2.701GlyGln: 2.701 ± 0.045
5.459GlyArg: 5.459 ± 0.072
4.685GlySer: 4.685 ± 0.064
4.563GlyThr: 4.563 ± 0.068
6.206GlyVal: 6.206 ± 0.081
1.295GlyTrp: 1.295 ± 0.033
2.306GlyTyr: 2.306 ± 0.042
0.0GlyXaa: 0.0 ± 0.0
His
2.32HisAla: 2.32 ± 0.05
0.241HisCys: 0.241 ± 0.013
1.277HisAsp: 1.277 ± 0.037
0.971HisGlu: 0.971 ± 0.028
0.797HisPhe: 0.797 ± 0.024
2.005HisGly: 2.005 ± 0.042
0.587HisHis: 0.587 ± 0.026
1.015HisIle: 1.015 ± 0.028
0.582HisLys: 0.582 ± 0.019
2.022HisLeu: 2.022 ± 0.04
0.493HisMet: 0.493 ± 0.02
0.526HisAsn: 0.526 ± 0.017
1.349HisPro: 1.349 ± 0.034
0.606HisGln: 0.606 ± 0.02
1.483HisArg: 1.483 ± 0.033
0.959HisSer: 0.959 ± 0.028
0.872HisThr: 0.872 ± 0.026
1.52HisVal: 1.52 ± 0.032
0.34HisTrp: 0.34 ± 0.017
0.526HisTyr: 0.526 ± 0.02
0.0HisXaa: 0.0 ± 0.0
Ile
7.884IleAla: 7.884 ± 0.078
0.527IleCys: 0.527 ± 0.022
3.819IleAsp: 3.819 ± 0.053
3.645IleGlu: 3.645 ± 0.057
1.891IlePhe: 1.891 ± 0.046
5.438IleGly: 5.438 ± 0.069
0.995IleHis: 0.995 ± 0.028
2.583IleIle: 2.583 ± 0.06
1.927IleLys: 1.927 ± 0.04
4.707IleLeu: 4.707 ± 0.067
1.101IleMet: 1.101 ± 0.029
1.61IleAsn: 1.61 ± 0.037
2.519IlePro: 2.519 ± 0.048
1.374IleGln: 1.374 ± 0.032
3.207IleArg: 3.207 ± 0.053
3.255IleSer: 3.255 ± 0.058
2.876IleThr: 2.876 ± 0.048
5.043IleVal: 5.043 ± 0.071
0.645IleTrp: 0.645 ± 0.024
1.35IleTyr: 1.35 ± 0.035
0.0IleXaa: 0.0 ± 0.0
Lys
4.702LysAla: 4.702 ± 0.071
0.202LysCys: 0.202 ± 0.012
2.158LysAsp: 2.158 ± 0.045
1.8LysGlu: 1.8 ± 0.042
1.289LysPhe: 1.289 ± 0.032
2.807LysGly: 2.807 ± 0.055
0.758LysHis: 0.758 ± 0.021
2.298LysIle: 2.298 ± 0.046
1.875LysLys: 1.875 ± 0.048
3.988LysLeu: 3.988 ± 0.059
0.999LysMet: 0.999 ± 0.027
1.137LysAsn: 1.137 ± 0.031
2.552LysPro: 2.552 ± 0.048
1.221LysGln: 1.221 ± 0.029
2.68LysArg: 2.68 ± 0.05
2.385LysSer: 2.385 ± 0.049
2.381LysThr: 2.381 ± 0.043
2.828LysVal: 2.828 ± 0.052
0.433LysTrp: 0.433 ± 0.017
0.807LysTyr: 0.807 ± 0.026
0.0LysXaa: 0.0 ± 0.0
Leu
12.707LeuAla: 12.707 ± 0.11
0.836LeuCys: 0.836 ± 0.029
5.648LeuAsp: 5.648 ± 0.071
4.572LeuGlu: 4.572 ± 0.055
3.63LeuPhe: 3.63 ± 0.056
7.914LeuGly: 7.914 ± 0.088
1.771LeuHis: 1.771 ± 0.035
5.356LeuIle: 5.356 ± 0.075
4.084LeuLys: 4.084 ± 0.061
9.018LeuLeu: 9.018 ± 0.107
2.397LeuMet: 2.397 ± 0.045
2.746LeuAsn: 2.746 ± 0.052
5.302LeuPro: 5.302 ± 0.063
2.651LeuGln: 2.651 ± 0.046
6.447LeuArg: 6.447 ± 0.08
6.262LeuSer: 6.262 ± 0.067
5.697LeuThr: 5.697 ± 0.065
7.203LeuVal: 7.203 ± 0.083
1.091LeuTrp: 1.091 ± 0.03
1.898LeuTyr: 1.898 ± 0.039
0.001LeuXaa: 0.001 ± 0.001
Met
3.029MetAla: 3.029 ± 0.053
0.183MetCys: 0.183 ± 0.01
1.118MetAsp: 1.118 ± 0.031
0.976MetGlu: 0.976 ± 0.028
0.855MetPhe: 0.855 ± 0.027
1.697MetGly: 1.697 ± 0.04
0.433MetHis: 0.433 ± 0.02
1.569MetIle: 1.569 ± 0.036
1.158MetLys: 1.158 ± 0.032
2.491MetLeu: 2.491 ± 0.042
0.762MetMet: 0.762 ± 0.027
0.789MetAsn: 0.789 ± 0.026
1.483MetPro: 1.483 ± 0.032
0.853MetGln: 0.853 ± 0.026
1.747MetArg: 1.747 ± 0.036
1.808MetSer: 1.808 ± 0.041
2.085MetThr: 2.085 ± 0.042
1.744MetVal: 1.744 ± 0.036
0.245MetTrp: 0.245 ± 0.014
0.351MetTyr: 0.351 ± 0.018
0.0MetXaa: 0.0 ± 0.0
Asn
3.351AsnAla: 3.351 ± 0.053
0.258AsnCys: 0.258 ± 0.013
1.631AsnAsp: 1.631 ± 0.046
1.441AsnGlu: 1.441 ± 0.029
1.104AsnPhe: 1.104 ± 0.029
2.565AsnGly: 2.565 ± 0.063
0.515AsnHis: 0.515 ± 0.021
1.621AsnIle: 1.621 ± 0.037
0.933AsnLys: 0.933 ± 0.03
2.705AsnLeu: 2.705 ± 0.05
0.634AsnMet: 0.634 ± 0.02
0.819AsnAsn: 0.819 ± 0.026
1.87AsnPro: 1.87 ± 0.035
0.758AsnGln: 0.758 ± 0.022
1.785AsnArg: 1.785 ± 0.037
1.459AsnSer: 1.459 ± 0.035
1.397AsnThr: 1.397 ± 0.036
2.232AsnVal: 2.232 ± 0.044
0.468AsnTrp: 0.468 ± 0.02
0.741AsnTyr: 0.741 ± 0.025
0.0AsnXaa: 0.0 ± 0.0
Pro
6.091ProAla: 6.091 ± 0.076
0.309ProCys: 0.309 ± 0.014
3.618ProAsp: 3.618 ± 0.055
3.193ProGlu: 3.193 ± 0.051
1.993ProPhe: 1.993 ± 0.038
4.209ProGly: 4.209 ± 0.063
1.076ProHis: 1.076 ± 0.029
2.439ProIle: 2.439 ± 0.045
2.134ProLys: 2.134 ± 0.046
4.622ProLeu: 4.622 ± 0.057
1.192ProMet: 1.192 ± 0.033
1.514ProAsn: 1.514 ± 0.035
2.771ProPro: 2.771 ± 0.066
1.781ProGln: 1.781 ± 0.04
3.054ProArg: 3.054 ± 0.059
2.978ProSer: 2.978 ± 0.051
2.553ProThr: 2.553 ± 0.046
4.111ProVal: 4.111 ± 0.056
0.677ProTrp: 0.677 ± 0.024
1.143ProTyr: 1.143 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
3.708GlnAla: 3.708 ± 0.056
0.217GlnCys: 0.217 ± 0.014
1.488GlnAsp: 1.488 ± 0.035
1.313GlnGlu: 1.313 ± 0.035
1.157GlnPhe: 1.157 ± 0.033
2.284GlnGly: 2.284 ± 0.04
0.661GlnHis: 0.661 ± 0.022
1.922GlnIle: 1.922 ± 0.038
1.215GlnLys: 1.215 ± 0.031
2.8GlnLeu: 2.8 ± 0.048
0.891GlnMet: 0.891 ± 0.027
0.949GlnAsn: 0.949 ± 0.026
1.758GlnPro: 1.758 ± 0.043
1.246GlnGln: 1.246 ± 0.036
2.451GlnArg: 2.451 ± 0.045
1.851GlnSer: 1.851 ± 0.036
1.821GlnThr: 1.821 ± 0.037
2.23GlnVal: 2.23 ± 0.042
0.407GlnTrp: 0.407 ± 0.019
0.668GlnTyr: 0.668 ± 0.024
0.0GlnXaa: 0.0 ± 0.0
Arg
7.605ArgAla: 7.605 ± 0.103
0.483ArgCys: 0.483 ± 0.018
4.125ArgAsp: 4.125 ± 0.055
3.966ArgGlu: 3.966 ± 0.055
2.696ArgPhe: 2.696 ± 0.051
4.676ArgGly: 4.676 ± 0.06
1.614ArgHis: 1.614 ± 0.037
4.005ArgIle: 4.005 ± 0.06
2.778ArgLys: 2.778 ± 0.049
6.943ArgLeu: 6.943 ± 0.082
1.81ArgMet: 1.81 ± 0.039
2.021ArgAsn: 2.021 ± 0.039
3.375ArgPro: 3.375 ± 0.064
2.319ArgGln: 2.319 ± 0.048
5.099ArgArg: 5.099 ± 0.074
3.706ArgSer: 3.706 ± 0.051
3.507ArgThr: 3.507 ± 0.05
4.673ArgVal: 4.673 ± 0.061
0.908ArgTrp: 0.908 ± 0.029
1.682ArgTyr: 1.682 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
6.432SerAla: 6.432 ± 0.073
0.415SerCys: 0.415 ± 0.018
3.255SerAsp: 3.255 ± 0.047
2.853SerGlu: 2.853 ± 0.055
2.444SerPhe: 2.444 ± 0.046
5.543SerGly: 5.543 ± 0.064
1.176SerHis: 1.176 ± 0.033
3.13SerIle: 3.13 ± 0.047
1.955SerLys: 1.955 ± 0.048
5.518SerLeu: 5.518 ± 0.074
1.379SerMet: 1.379 ± 0.034
1.585SerAsn: 1.585 ± 0.035
2.95SerPro: 2.95 ± 0.049
1.672SerGln: 1.672 ± 0.037
3.784SerArg: 3.784 ± 0.055
3.347SerSer: 3.347 ± 0.062
2.826SerThr: 2.826 ± 0.051
4.313SerVal: 4.313 ± 0.058
0.737SerTrp: 0.737 ± 0.023
1.38SerTyr: 1.38 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
6.383ThrAla: 6.383 ± 0.073
0.431ThrCys: 0.431 ± 0.018
2.776ThrAsp: 2.776 ± 0.055
2.613ThrGlu: 2.613 ± 0.045
2.239ThrPhe: 2.239 ± 0.044
4.961ThrGly: 4.961 ± 0.07
1.092ThrHis: 1.092 ± 0.028
3.285ThrIle: 3.285 ± 0.055
1.818ThrLys: 1.818 ± 0.039
5.808ThrLeu: 5.808 ± 0.068
1.333ThrMet: 1.333 ± 0.032
1.415ThrAsn: 1.415 ± 0.039
3.325ThrPro: 3.325 ± 0.06
1.503ThrGln: 1.503 ± 0.031
3.369ThrArg: 3.369 ± 0.045
3.138ThrSer: 3.138 ± 0.048
3.11ThrThr: 3.11 ± 0.05
4.442ThrVal: 4.442 ± 0.064
0.648ThrTrp: 0.648 ± 0.023
1.205ThrTyr: 1.205 ± 0.032
0.0ThrXaa: 0.0 ± 0.0
Val
9.438ValAla: 9.438 ± 0.095
0.645ValCys: 0.645 ± 0.022
4.112ValAsp: 4.112 ± 0.067
4.144ValGlu: 4.144 ± 0.058
2.883ValPhe: 2.883 ± 0.051
5.525ValGly: 5.525 ± 0.069
1.43ValHis: 1.43 ± 0.033
4.46ValIle: 4.46 ± 0.061
2.807ValLys: 2.807 ± 0.045
7.344ValLeu: 7.344 ± 0.077
1.98ValMet: 1.98 ± 0.044
2.167ValAsn: 2.167 ± 0.036
3.874ValPro: 3.874 ± 0.051
2.114ValGln: 2.114 ± 0.037
4.95ValArg: 4.95 ± 0.059
4.458ValSer: 4.458 ± 0.056
4.611ValThr: 4.611 ± 0.067
6.213ValVal: 6.213 ± 0.077
0.869ValTrp: 0.869 ± 0.026
1.541ValTyr: 1.541 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
1.1TrpAla: 1.1 ± 0.027
0.136TrpCys: 0.136 ± 0.01
0.582TrpAsp: 0.582 ± 0.022
0.481TrpGlu: 0.481 ± 0.02
0.498TrpPhe: 0.498 ± 0.021
0.863TrpGly: 0.863 ± 0.027
0.331TrpHis: 0.331 ± 0.016
0.688TrpIle: 0.688 ± 0.025
0.502TrpLys: 0.502 ± 0.022
1.573TrpLeu: 1.573 ± 0.042
0.361TrpMet: 0.361 ± 0.016
0.463TrpAsn: 0.463 ± 0.02
0.695TrpPro: 0.695 ± 0.025
0.542TrpGln: 0.542 ± 0.02
1.098TrpArg: 1.098 ± 0.029
0.818TrpSer: 0.818 ± 0.026
0.781TrpThr: 0.781 ± 0.026
0.8TrpVal: 0.8 ± 0.027
0.225TrpTrp: 0.225 ± 0.012
0.276TrpTyr: 0.276 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.524TyrAla: 2.524 ± 0.041
0.244TyrCys: 0.244 ± 0.013
1.428TyrAsp: 1.428 ± 0.033
1.143TyrGlu: 1.143 ± 0.033
0.967TyrPhe: 0.967 ± 0.03
2.175TyrGly: 2.175 ± 0.046
0.472TyrHis: 0.472 ± 0.021
1.008TyrIle: 1.008 ± 0.026
0.732TyrLys: 0.732 ± 0.026
2.289TyrLeu: 2.289 ± 0.042
0.461TyrMet: 0.461 ± 0.019
0.627TyrAsn: 0.627 ± 0.02
1.078TyrPro: 1.078 ± 0.027
0.732TyrGln: 0.732 ± 0.024
1.725TyrArg: 1.725 ± 0.038
1.218TyrSer: 1.218 ± 0.032
1.064TyrThr: 1.064 ± 0.029
1.706TyrVal: 1.706 ± 0.036
0.359TyrTrp: 0.359 ± 0.017
0.64TyrTyr: 0.64 ± 0.025
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
0.001XaaHis: 0.001 ± 0.001
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
0.001XaaVal: 0.001 ± 0.001
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.0XaaXaa: 0.0 ± 0.0
Statistics based on 4397 proteins (1357450 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