Amino acid dipepetide frequency for Chitinophaga niastensis

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
8.62AlaAla: 8.62 ± 0.095
0.799AlaCys: 0.799 ± 0.022
4.543AlaAsp: 4.543 ± 0.053
3.681AlaGlu: 3.681 ± 0.048
3.537AlaPhe: 3.537 ± 0.044
6.659AlaGly: 6.659 ± 0.079
1.508AlaHis: 1.508 ± 0.031
5.515AlaIle: 5.515 ± 0.06
4.093AlaLys: 4.093 ± 0.057
7.555AlaLeu: 7.555 ± 0.07
1.941AlaMet: 1.941 ± 0.034
3.761AlaAsn: 3.761 ± 0.059
3.05AlaPro: 3.05 ± 0.047
3.175AlaGln: 3.175 ± 0.042
2.875AlaArg: 2.875 ± 0.043
4.445AlaSer: 4.445 ± 0.055
5.199AlaThr: 5.199 ± 0.108
5.448AlaVal: 5.448 ± 0.057
0.925AlaTrp: 0.925 ± 0.021
3.217AlaTyr: 3.217 ± 0.047
0.0AlaXaa: 0.0 ± 0.0
Cys
0.586CysAla: 0.586 ± 0.026
0.146CysCys: 0.146 ± 0.008
0.379CysAsp: 0.379 ± 0.014
0.408CysGlu: 0.408 ± 0.014
0.428CysPhe: 0.428 ± 0.015
0.661CysGly: 0.661 ± 0.02
0.208CysHis: 0.208 ± 0.011
0.691CysIle: 0.691 ± 0.019
0.506CysLys: 0.506 ± 0.018
0.855CysLeu: 0.855 ± 0.021
0.232CysMet: 0.232 ± 0.01
0.458CysAsn: 0.458 ± 0.02
0.334CysPro: 0.334 ± 0.015
0.241CysGln: 0.241 ± 0.012
0.404CysArg: 0.404 ± 0.015
0.563CysSer: 0.563 ± 0.018
0.549CysThr: 0.549 ± 0.021
0.506CysVal: 0.506 ± 0.016
0.137CysTrp: 0.137 ± 0.009
0.369CysTyr: 0.369 ± 0.012
0.0CysXaa: 0.0 ± 0.0
Asp
4.232AspAla: 4.232 ± 0.049
0.399AspCys: 0.399 ± 0.015
2.341AspAsp: 2.341 ± 0.062
2.791AspGlu: 2.791 ± 0.046
2.651AspPhe: 2.651 ± 0.039
3.712AspGly: 3.712 ± 0.054
1.036AspHis: 1.036 ± 0.026
3.988AspIle: 3.988 ± 0.051
3.698AspLys: 3.698 ± 0.041
4.512AspLeu: 4.512 ± 0.056
1.279AspMet: 1.279 ± 0.026
2.879AspAsn: 2.879 ± 0.043
2.261AspPro: 2.261 ± 0.04
1.759AspGln: 1.759 ± 0.031
1.946AspArg: 1.946 ± 0.029
2.93AspSer: 2.93 ± 0.047
2.932AspThr: 2.932 ± 0.045
3.287AspVal: 3.287 ± 0.039
0.766AspTrp: 0.766 ± 0.019
2.566AspTyr: 2.566 ± 0.038
0.0AspXaa: 0.0 ± 0.0
Glu
4.036GluAla: 4.036 ± 0.052
0.351GluCys: 0.351 ± 0.011
2.474GluAsp: 2.474 ± 0.037
3.503GluGlu: 3.503 ± 0.056
1.86GluPhe: 1.86 ± 0.039
3.159GluGly: 3.159 ± 0.039
1.12GluHis: 1.12 ± 0.026
3.798GluIle: 3.798 ± 0.048
4.406GluLys: 4.406 ± 0.062
5.188GluLeu: 5.188 ± 0.069
1.509GluMet: 1.509 ± 0.031
2.857GluAsn: 2.857 ± 0.041
1.447GluPro: 1.447 ± 0.031
2.514GluGln: 2.514 ± 0.048
2.329GluArg: 2.329 ± 0.037
2.435GluSer: 2.435 ± 0.031
2.632GluThr: 2.632 ± 0.036
3.423GluVal: 3.423 ± 0.043
0.672GluTrp: 0.672 ± 0.019
1.914GluTyr: 1.914 ± 0.039
0.0GluXaa: 0.0 ± 0.0
Phe
3.068PheAla: 3.068 ± 0.039
0.458PheCys: 0.458 ± 0.016
2.638PheAsp: 2.638 ± 0.035
2.359PheGlu: 2.359 ± 0.039
2.356PhePhe: 2.356 ± 0.041
3.002PheGly: 3.002 ± 0.041
0.908PheHis: 0.908 ± 0.02
3.248PheIle: 3.248 ± 0.046
2.589PheLys: 2.589 ± 0.046
4.156PheLeu: 4.156 ± 0.046
1.164PheMet: 1.164 ± 0.027
2.771PheAsn: 2.771 ± 0.039
1.814PhePro: 1.814 ± 0.034
1.441PheGln: 1.441 ± 0.027
1.96PheArg: 1.96 ± 0.029
3.518PheSer: 3.518 ± 0.041
3.171PheThr: 3.171 ± 0.045
2.667PheVal: 2.667 ± 0.036
0.537PheTrp: 0.537 ± 0.016
1.936PheTyr: 1.936 ± 0.029
0.0PheXaa: 0.0 ± 0.0
Gly
5.217GlyAla: 5.217 ± 0.067
0.714GlyCys: 0.714 ± 0.021
3.371GlyAsp: 3.371 ± 0.044
3.189GlyGlu: 3.189 ± 0.045
3.33GlyPhe: 3.33 ± 0.047
5.218GlyGly: 5.218 ± 0.077
1.378GlyHis: 1.378 ± 0.03
5.419GlyIle: 5.419 ± 0.053
5.113GlyLys: 5.113 ± 0.059
5.985GlyLeu: 5.985 ± 0.056
1.814GlyMet: 1.814 ± 0.032
4.113GlyAsn: 4.113 ± 0.071
1.788GlyPro: 1.788 ± 0.035
2.411GlyGln: 2.411 ± 0.043
2.664GlyArg: 2.664 ± 0.04
4.392GlySer: 4.392 ± 0.057
4.598GlyThr: 4.598 ± 0.097
4.671GlyVal: 4.671 ± 0.058
1.047GlyTrp: 1.047 ± 0.024
3.292GlyTyr: 3.292 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
1.398HisAla: 1.398 ± 0.032
0.226HisCys: 0.226 ± 0.01
0.936HisAsp: 0.936 ± 0.021
1.02HisGlu: 1.02 ± 0.023
1.26HisPhe: 1.26 ± 0.026
1.226HisGly: 1.226 ± 0.026
0.719HisHis: 0.719 ± 0.023
1.547HisIle: 1.547 ± 0.031
1.058HisLys: 1.058 ± 0.021
2.133HisLeu: 2.133 ± 0.036
0.462HisMet: 0.462 ± 0.015
0.992HisAsn: 0.992 ± 0.021
1.166HisPro: 1.166 ± 0.026
0.891HisGln: 0.891 ± 0.026
0.838HisArg: 0.838 ± 0.022
1.121HisSer: 1.121 ± 0.029
1.336HisThr: 1.336 ± 0.028
1.087HisVal: 1.087 ± 0.024
0.291HisTrp: 0.291 ± 0.011
1.015HisTyr: 1.015 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
5.928IleAla: 5.928 ± 0.056
0.742IleCys: 0.742 ± 0.022
3.716IleAsp: 3.716 ± 0.05
3.287IleGlu: 3.287 ± 0.045
2.914IlePhe: 2.914 ± 0.042
4.581IleGly: 4.581 ± 0.055
1.431IleHis: 1.431 ± 0.032
4.799IleIle: 4.799 ± 0.063
4.159IleLys: 4.159 ± 0.049
5.861IleLeu: 5.861 ± 0.06
1.395IleMet: 1.395 ± 0.025
3.968IleAsn: 3.968 ± 0.044
3.329IlePro: 3.329 ± 0.044
2.441IleGln: 2.441 ± 0.035
3.23IleArg: 3.23 ± 0.046
4.978IleSer: 4.978 ± 0.057
5.147IleThr: 5.147 ± 0.077
4.095IleVal: 4.095 ± 0.048
0.747IleTrp: 0.747 ± 0.021
2.553IleTyr: 2.553 ± 0.044
0.0IleXaa: 0.0 ± 0.0
Lys
4.893LysAla: 4.893 ± 0.06
0.347LysCys: 0.347 ± 0.015
3.907LysAsp: 3.907 ± 0.052
4.301LysGlu: 4.301 ± 0.062
2.066LysPhe: 2.066 ± 0.036
4.366LysGly: 4.366 ± 0.053
1.175LysHis: 1.175 ± 0.025
4.308LysIle: 4.308 ± 0.053
4.814LysLys: 4.814 ± 0.073
5.347LysLeu: 5.347 ± 0.061
1.824LysMet: 1.824 ± 0.036
3.416LysAsn: 3.416 ± 0.057
2.423LysPro: 2.423 ± 0.039
2.768LysGln: 2.768 ± 0.036
2.429LysArg: 2.429 ± 0.035
3.338LysSer: 3.338 ± 0.05
3.7LysThr: 3.7 ± 0.045
4.122LysVal: 4.122 ± 0.047
0.797LysTrp: 0.797 ± 0.022
2.531LysTyr: 2.531 ± 0.039
0.0LysXaa: 0.0 ± 0.0
Leu
6.934LeuAla: 6.934 ± 0.069
0.91LeuCys: 0.91 ± 0.022
4.54LeuAsp: 4.54 ± 0.052
4.821LeuGlu: 4.821 ± 0.065
4.596LeuPhe: 4.596 ± 0.054
5.677LeuGly: 5.677 ± 0.062
2.211LeuHis: 2.211 ± 0.03
5.789LeuIle: 5.789 ± 0.061
6.093LeuLys: 6.093 ± 0.067
10.699LeuLeu: 10.699 ± 0.118
2.167LeuMet: 2.167 ± 0.035
4.839LeuAsn: 4.839 ± 0.057
4.831LeuPro: 4.831 ± 0.051
5.11LeuGln: 5.11 ± 0.07
4.006LeuArg: 4.006 ± 0.052
6.934LeuSer: 6.934 ± 0.067
5.557LeuThr: 5.557 ± 0.06
5.486LeuVal: 5.486 ± 0.052
0.976LeuTrp: 0.976 ± 0.025
3.495LeuTyr: 3.495 ± 0.046
0.0LeuXaa: 0.0 ± 0.0
Met
1.968MetAla: 1.968 ± 0.036
0.151MetCys: 0.151 ± 0.008
1.304MetAsp: 1.304 ± 0.026
1.523MetGlu: 1.523 ± 0.033
0.808MetPhe: 0.808 ± 0.02
1.6MetGly: 1.6 ± 0.029
0.533MetHis: 0.533 ± 0.015
1.48MetIle: 1.48 ± 0.029
1.932MetLys: 1.932 ± 0.041
2.427MetLeu: 2.427 ± 0.036
0.658MetMet: 0.658 ± 0.02
1.302MetAsn: 1.302 ± 0.028
1.171MetPro: 1.171 ± 0.02
1.248MetGln: 1.248 ± 0.026
1.038MetArg: 1.038 ± 0.021
1.397MetSer: 1.397 ± 0.025
1.184MetThr: 1.184 ± 0.029
1.529MetVal: 1.529 ± 0.026
0.213MetTrp: 0.213 ± 0.01
0.74MetTyr: 0.74 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
4.135AsnAla: 4.135 ± 0.051
0.436AsnCys: 0.436 ± 0.024
2.715AsnAsp: 2.715 ± 0.035
2.59AsnGlu: 2.59 ± 0.039
2.335AsnPhe: 2.335 ± 0.03
4.274AsnGly: 4.274 ± 0.075
0.919AsnHis: 0.919 ± 0.02
4.241AsnIle: 4.241 ± 0.059
3.528AsnLys: 3.528 ± 0.046
4.252AsnLeu: 4.252 ± 0.05
1.251AsnMet: 1.251 ± 0.022
3.603AsnAsn: 3.603 ± 0.058
2.545AsnPro: 2.545 ± 0.038
1.795AsnGln: 1.795 ± 0.031
2.214AsnArg: 2.214 ± 0.038
3.096AsnSer: 3.096 ± 0.052
3.658AsnThr: 3.658 ± 0.058
3.244AsnVal: 3.244 ± 0.05
0.74AsnTrp: 0.74 ± 0.02
2.551AsnTyr: 2.551 ± 0.04
0.0AsnXaa: 0.0 ± 0.0
Pro
4.456ProAla: 4.456 ± 0.083
0.261ProCys: 0.261 ± 0.012
2.852ProAsp: 2.852 ± 0.037
2.694ProGlu: 2.694 ± 0.034
2.024ProPhe: 2.024 ± 0.029
3.41ProGly: 3.41 ± 0.046
0.796ProHis: 0.796 ± 0.021
2.128ProIle: 2.128 ± 0.034
1.856ProLys: 1.856 ± 0.029
3.874ProLeu: 3.874 ± 0.049
0.821ProMet: 0.821 ± 0.018
1.772ProAsn: 1.772 ± 0.031
1.373ProPro: 1.373 ± 0.031
1.561ProGln: 1.561 ± 0.026
1.269ProArg: 1.269 ± 0.024
2.205ProSer: 2.205 ± 0.039
2.015ProThr: 2.015 ± 0.034
3.966ProVal: 3.966 ± 0.055
0.466ProTrp: 0.466 ± 0.017
1.642ProTyr: 1.642 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
2.957GlnAla: 2.957 ± 0.048
0.265GlnCys: 0.265 ± 0.012
1.746GlnAsp: 1.746 ± 0.028
2.389GlnGlu: 2.389 ± 0.044
1.697GlnPhe: 1.697 ± 0.029
2.226GlnGly: 2.226 ± 0.035
1.177GlnHis: 1.177 ± 0.026
2.296GlnIle: 2.296 ± 0.038
2.232GlnLys: 2.232 ± 0.033
5.058GlnLeu: 5.058 ± 0.074
0.917GlnMet: 0.917 ± 0.021
1.765GlnAsn: 1.765 ± 0.037
1.874GlnPro: 1.874 ± 0.034
3.263GlnGln: 3.263 ± 0.059
1.816GlnArg: 1.816 ± 0.031
2.244GlnSer: 2.244 ± 0.03
2.267GlnThr: 2.267 ± 0.032
2.743GlnVal: 2.743 ± 0.047
0.592GlnTrp: 0.592 ± 0.017
1.851GlnTyr: 1.851 ± 0.033
0.0GlnXaa: 0.0 ± 0.0
Arg
2.524ArgAla: 2.524 ± 0.034
0.292ArgCys: 0.292 ± 0.012
1.949ArgAsp: 1.949 ± 0.031
2.374ArgGlu: 2.374 ± 0.034
2.109ArgPhe: 2.109 ± 0.035
2.172ArgGly: 2.172 ± 0.035
0.876ArgHis: 0.876 ± 0.021
3.276ArgIle: 3.276 ± 0.044
2.854ArgLys: 2.854 ± 0.043
4.115ArgLeu: 4.115 ± 0.055
1.183ArgMet: 1.183 ± 0.022
2.389ArgAsn: 2.389 ± 0.037
1.435ArgPro: 1.435 ± 0.03
1.712ArgGln: 1.712 ± 0.033
1.669ArgArg: 1.669 ± 0.033
2.307ArgSer: 2.307 ± 0.033
2.16ArgThr: 2.16 ± 0.035
2.396ArgVal: 2.396 ± 0.035
0.634ArgTrp: 0.634 ± 0.02
1.945ArgTyr: 1.945 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
4.847SerAla: 4.847 ± 0.059
0.611SerCys: 0.611 ± 0.019
2.926SerAsp: 2.926 ± 0.041
2.478SerGlu: 2.478 ± 0.04
3.421SerPhe: 3.421 ± 0.039
5.098SerGly: 5.098 ± 0.067
1.141SerHis: 1.141 ± 0.022
4.264SerIle: 4.264 ± 0.05
3.235SerLys: 3.235 ± 0.044
6.22SerLeu: 6.22 ± 0.055
1.394SerMet: 1.394 ± 0.028
3.143SerAsn: 3.143 ± 0.05
2.45SerPro: 2.45 ± 0.038
2.113SerGln: 2.113 ± 0.032
2.538SerArg: 2.538 ± 0.035
3.936SerSer: 3.936 ± 0.054
3.594SerThr: 3.594 ± 0.045
4.002SerVal: 4.002 ± 0.064
0.902SerTrp: 0.902 ± 0.026
2.699SerTyr: 2.699 ± 0.043
0.0SerXaa: 0.0 ± 0.0
Thr
5.799ThrAla: 5.799 ± 0.092
0.44ThrCys: 0.44 ± 0.017
3.571ThrAsp: 3.571 ± 0.051
2.603ThrGlu: 2.603 ± 0.04
2.777ThrPhe: 2.777 ± 0.044
5.389ThrGly: 5.389 ± 0.083
1.155ThrHis: 1.155 ± 0.026
4.443ThrIle: 4.443 ± 0.068
2.9ThrLys: 2.9 ± 0.04
5.805ThrLeu: 5.805 ± 0.064
1.223ThrMet: 1.223 ± 0.026
3.028ThrAsn: 3.028 ± 0.065
3.059ThrPro: 3.059 ± 0.04
2.055ThrGln: 2.055 ± 0.035
2.287ThrArg: 2.287 ± 0.037
3.446ThrSer: 3.446 ± 0.051
4.073ThrThr: 4.073 ± 0.071
4.362ThrVal: 4.362 ± 0.096
0.784ThrTrp: 0.784 ± 0.023
2.503ThrTyr: 2.503 ± 0.044
0.0ThrXaa: 0.0 ± 0.0
Val
5.109ValAla: 5.109 ± 0.05
0.591ValCys: 0.591 ± 0.017
3.114ValAsp: 3.114 ± 0.04
2.928ValGlu: 2.928 ± 0.037
2.907ValPhe: 2.907 ± 0.042
3.606ValGly: 3.606 ± 0.05
1.186ValHis: 1.186 ± 0.026
4.736ValIle: 4.736 ± 0.055
4.423ValLys: 4.423 ± 0.05
6.217ValLeu: 6.217 ± 0.061
1.683ValMet: 1.683 ± 0.028
3.766ValAsn: 3.766 ± 0.059
2.876ValPro: 2.876 ± 0.051
2.439ValGln: 2.439 ± 0.036
2.375ValArg: 2.375 ± 0.037
4.396ValSer: 4.396 ± 0.063
4.4ValThr: 4.4 ± 0.088
4.348ValVal: 4.348 ± 0.052
0.708ValTrp: 0.708 ± 0.019
2.528ValTyr: 2.528 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
0.761TrpAla: 0.761 ± 0.019
0.129TrpCys: 0.129 ± 0.007
0.653TrpAsp: 0.653 ± 0.02
0.74TrpGlu: 0.74 ± 0.02
0.553TrpPhe: 0.553 ± 0.02
0.877TrpGly: 0.877 ± 0.021
0.316TrpHis: 0.316 ± 0.013
0.778TrpIle: 0.778 ± 0.02
0.896TrpLys: 0.896 ± 0.021
1.359TrpLeu: 1.359 ± 0.027
0.401TrpMet: 0.401 ± 0.016
0.727TrpAsn: 0.727 ± 0.023
0.363TrpPro: 0.363 ± 0.012
0.739TrpGln: 0.739 ± 0.024
0.546TrpArg: 0.546 ± 0.018
0.751TrpSer: 0.751 ± 0.023
0.713TrpThr: 0.713 ± 0.03
0.686TrpVal: 0.686 ± 0.019
0.259TrpTrp: 0.259 ± 0.011
0.53TrpTyr: 0.53 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.078TyrAla: 3.078 ± 0.044
0.392TyrCys: 0.392 ± 0.013
2.289TyrAsp: 2.289 ± 0.037
1.945TyrGlu: 1.945 ± 0.032
2.133TyrPhe: 2.133 ± 0.033
2.812TyrGly: 2.812 ± 0.042
0.927TyrHis: 0.927 ± 0.022
2.556TyrIle: 2.556 ± 0.036
2.488TyrLys: 2.488 ± 0.037
4.055TyrLeu: 4.055 ± 0.05
0.889TyrMet: 0.889 ± 0.022
2.574TyrAsn: 2.574 ± 0.045
1.852TyrPro: 1.852 ± 0.027
1.7TyrGln: 1.7 ± 0.03
1.94TyrArg: 1.94 ± 0.038
2.582TyrSer: 2.582 ± 0.044
2.812TyrThr: 2.812 ± 0.054
2.268TyrVal: 2.268 ± 0.035
0.581TyrTrp: 0.581 ± 0.017
1.932TyrTyr: 1.932 ± 0.037
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 5788 proteins (2177340 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