Amino acid dipepetide frequency for Clostridium neonatale

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
3.823AlaAla: 3.823 ± 0.079
0.706AlaCys: 0.706 ± 0.024
2.81AlaAsp: 2.81 ± 0.051
3.448AlaGlu: 3.448 ± 0.058
2.511AlaPhe: 2.511 ± 0.052
3.717AlaGly: 3.717 ± 0.06
0.784AlaHis: 0.784 ± 0.024
5.668AlaIle: 5.668 ± 0.081
4.639AlaLys: 4.639 ± 0.069
5.592AlaLeu: 5.592 ± 0.076
1.635AlaMet: 1.635 ± 0.043
2.687AlaAsn: 2.687 ± 0.055
1.416AlaPro: 1.416 ± 0.034
1.439AlaGln: 1.439 ± 0.032
1.711AlaArg: 1.711 ± 0.037
3.338AlaSer: 3.338 ± 0.057
2.818AlaThr: 2.818 ± 0.061
3.892AlaVal: 3.892 ± 0.066
0.378AlaTrp: 0.378 ± 0.021
2.215AlaTyr: 2.215 ± 0.043
0.0AlaXaa: 0.0 ± 0.0
Cys
0.663CysAla: 0.663 ± 0.024
0.201CysCys: 0.201 ± 0.017
0.797CysAsp: 0.797 ± 0.026
0.853CysGlu: 0.853 ± 0.029
0.539CysPhe: 0.539 ± 0.022
1.157CysGly: 1.157 ± 0.039
0.2CysHis: 0.2 ± 0.012
1.255CysIle: 1.255 ± 0.032
0.986CysLys: 0.986 ± 0.029
0.924CysLeu: 0.924 ± 0.029
0.326CysMet: 0.326 ± 0.019
0.841CysAsn: 0.841 ± 0.026
0.463CysPro: 0.463 ± 0.02
0.205CysGln: 0.205 ± 0.013
0.43CysArg: 0.43 ± 0.019
0.837CysSer: 0.837 ± 0.023
0.595CysThr: 0.595 ± 0.025
0.668CysVal: 0.668 ± 0.026
0.078CysTrp: 0.078 ± 0.008
0.471CysTyr: 0.471 ± 0.022
0.0CysXaa: 0.0 ± 0.0
Asp
2.791AspAla: 2.791 ± 0.053
0.654AspCys: 0.654 ± 0.025
3.326AspAsp: 3.326 ± 0.065
5.257AspGlu: 5.257 ± 0.072
2.8AspPhe: 2.8 ± 0.053
3.875AspGly: 3.875 ± 0.075
0.601AspHis: 0.601 ± 0.024
6.176AspIle: 6.176 ± 0.076
5.497AspLys: 5.497 ± 0.068
4.95AspLeu: 4.95 ± 0.059
1.499AspMet: 1.499 ± 0.035
3.841AspAsn: 3.841 ± 0.062
1.395AspPro: 1.395 ± 0.035
0.861AspGln: 0.861 ± 0.026
1.704AspArg: 1.704 ± 0.036
3.436AspSer: 3.436 ± 0.056
2.616AspThr: 2.616 ± 0.049
3.715AspVal: 3.715 ± 0.062
0.412AspTrp: 0.412 ± 0.019
2.816AspTyr: 2.816 ± 0.048
0.0AspXaa: 0.0 ± 0.0
Glu
4.19GluAla: 4.19 ± 0.062
0.906GluCys: 0.906 ± 0.03
4.527GluAsp: 4.527 ± 0.064
7.231GluGlu: 7.231 ± 0.098
3.201GluPhe: 3.201 ± 0.053
4.118GluGly: 4.118 ± 0.063
0.928GluHis: 0.928 ± 0.03
7.599GluIle: 7.599 ± 0.094
7.813GluLys: 7.813 ± 0.097
6.693GluLeu: 6.693 ± 0.079
1.955GluMet: 1.955 ± 0.044
6.012GluAsn: 6.012 ± 0.079
1.421GluPro: 1.421 ± 0.034
1.789GluGln: 1.789 ± 0.041
2.488GluArg: 2.488 ± 0.044
3.855GluSer: 3.855 ± 0.059
2.978GluThr: 2.978 ± 0.057
4.742GluVal: 4.742 ± 0.069
0.49GluTrp: 0.49 ± 0.021
3.477GluTyr: 3.477 ± 0.053
0.0GluXaa: 0.0 ± 0.0
Phe
2.232PheAla: 2.232 ± 0.045
0.532PheCys: 0.532 ± 0.021
2.67PheAsp: 2.67 ± 0.047
2.867PheGlu: 2.867 ± 0.048
1.872PhePhe: 1.872 ± 0.047
2.88PheGly: 2.88 ± 0.054
0.551PheHis: 0.551 ± 0.022
4.545PheIle: 4.545 ± 0.072
3.81PheLys: 3.81 ± 0.062
3.799PheLeu: 3.799 ± 0.066
1.151PheMet: 1.151 ± 0.035
3.084PheAsn: 3.084 ± 0.057
1.087PhePro: 1.087 ± 0.03
0.889PheGln: 0.889 ± 0.029
1.225PheArg: 1.225 ± 0.028
3.093PheSer: 3.093 ± 0.054
2.387PheThr: 2.387 ± 0.048
2.574PheVal: 2.574 ± 0.047
0.324PheTrp: 0.324 ± 0.017
1.842PheTyr: 1.842 ± 0.044
0.0PheXaa: 0.0 ± 0.0
Gly
4.02GlyAla: 4.02 ± 0.065
0.999GlyCys: 0.999 ± 0.037
3.264GlyAsp: 3.264 ± 0.053
4.278GlyGlu: 4.278 ± 0.068
2.967GlyPhe: 2.967 ± 0.054
4.219GlyGly: 4.219 ± 0.069
0.901GlyHis: 0.901 ± 0.028
6.713GlyIle: 6.713 ± 0.09
5.37GlyLys: 5.37 ± 0.067
5.175GlyLeu: 5.175 ± 0.075
1.753GlyMet: 1.753 ± 0.047
3.502GlyAsn: 3.502 ± 0.056
1.154GlyPro: 1.154 ± 0.031
1.392GlyGln: 1.392 ± 0.033
2.059GlyArg: 2.059 ± 0.042
3.681GlySer: 3.681 ± 0.058
3.521GlyThr: 3.521 ± 0.057
4.355GlyVal: 4.355 ± 0.065
0.668GlyTrp: 0.668 ± 0.031
2.978GlyTyr: 2.978 ± 0.055
0.0GlyXaa: 0.0 ± 0.0
His
0.645HisAla: 0.645 ± 0.023
0.211HisCys: 0.211 ± 0.014
0.784HisAsp: 0.784 ± 0.026
0.916HisGlu: 0.916 ± 0.027
0.595HisPhe: 0.595 ± 0.025
0.974HisGly: 0.974 ± 0.029
0.28HisHis: 0.28 ± 0.025
1.324HisIle: 1.324 ± 0.038
1.021HisLys: 1.021 ± 0.025
1.045HisLeu: 1.045 ± 0.029
0.367HisMet: 0.367 ± 0.019
0.835HisAsn: 0.835 ± 0.024
0.564HisPro: 0.564 ± 0.021
0.304HisGln: 0.304 ± 0.015
0.504HisArg: 0.504 ± 0.018
0.803HisSer: 0.803 ± 0.028
0.651HisThr: 0.651 ± 0.025
0.686HisVal: 0.686 ± 0.025
0.106HisTrp: 0.106 ± 0.01
0.563HisTyr: 0.563 ± 0.02
0.0HisXaa: 0.0 ± 0.0
Ile
5.738IleAla: 5.738 ± 0.082
1.414IleCys: 1.414 ± 0.033
6.185IleAsp: 6.185 ± 0.069
7.365IleGlu: 7.365 ± 0.072
4.196IlePhe: 4.196 ± 0.085
6.176IleGly: 6.176 ± 0.092
1.279IleHis: 1.279 ± 0.035
9.691IleIle: 9.691 ± 0.125
8.934IleLys: 8.934 ± 0.09
9.122IleLeu: 9.122 ± 0.119
2.368IleMet: 2.368 ± 0.041
7.013IleAsn: 7.013 ± 0.093
3.289IlePro: 3.289 ± 0.058
2.211IleGln: 2.211 ± 0.036
2.958IleArg: 2.958 ± 0.048
7.317IleSer: 7.317 ± 0.092
5.083IleThr: 5.083 ± 0.073
6.113IleVal: 6.113 ± 0.084
0.556IleTrp: 0.556 ± 0.023
3.722IleTyr: 3.722 ± 0.054
0.0IleXaa: 0.0 ± 0.0
Lys
4.627LysAla: 4.627 ± 0.07
0.992LysCys: 0.992 ± 0.031
5.929LysAsp: 5.929 ± 0.074
9.037LysGlu: 9.037 ± 0.101
3.368LysPhe: 3.368 ± 0.058
4.626LysGly: 4.626 ± 0.071
1.102LysHis: 1.102 ± 0.029
8.565LysIle: 8.565 ± 0.099
8.126LysLys: 8.126 ± 0.1
7.488LysLeu: 7.488 ± 0.077
2.41LysMet: 2.41 ± 0.046
6.667LysAsn: 6.667 ± 0.082
1.945LysPro: 1.945 ± 0.04
2.103LysGln: 2.103 ± 0.037
2.894LysArg: 2.894 ± 0.048
5.243LysSer: 5.243 ± 0.066
3.94LysThr: 3.94 ± 0.053
5.659LysVal: 5.659 ± 0.072
0.68LysTrp: 0.68 ± 0.031
4.28LysTyr: 4.28 ± 0.059
0.0LysXaa: 0.0 ± 0.0
Leu
4.936LeuAla: 4.936 ± 0.06
1.196LeuCys: 1.196 ± 0.034
5.237LeuAsp: 5.237 ± 0.071
6.432LeuGlu: 6.432 ± 0.084
3.751LeuPhe: 3.751 ± 0.063
5.683LeuGly: 5.683 ± 0.082
1.096LeuHis: 1.096 ± 0.033
8.403LeuIle: 8.403 ± 0.106
8.432LeuLys: 8.432 ± 0.09
7.526LeuLeu: 7.526 ± 0.105
2.269LeuMet: 2.269 ± 0.047
6.177LeuAsn: 6.177 ± 0.077
2.62LeuPro: 2.62 ± 0.051
2.007LeuGln: 2.007 ± 0.04
2.883LeuArg: 2.883 ± 0.049
6.468LeuSer: 6.468 ± 0.075
4.357LeuThr: 4.357 ± 0.058
4.944LeuVal: 4.944 ± 0.065
0.548LeuTrp: 0.548 ± 0.022
3.352LeuTyr: 3.352 ± 0.054
0.0LeuXaa: 0.0 ± 0.0
Met
1.705MetAla: 1.705 ± 0.043
0.273MetCys: 0.273 ± 0.015
1.435MetAsp: 1.435 ± 0.032
1.774MetGlu: 1.774 ± 0.039
1.014MetPhe: 1.014 ± 0.033
1.686MetGly: 1.686 ± 0.041
0.368MetHis: 0.368 ± 0.016
2.465MetIle: 2.465 ± 0.052
2.508MetLys: 2.508 ± 0.047
2.241MetLeu: 2.241 ± 0.044
0.704MetMet: 0.704 ± 0.026
1.86MetAsn: 1.86 ± 0.033
0.96MetPro: 0.96 ± 0.028
0.713MetGln: 0.713 ± 0.025
0.835MetArg: 0.835 ± 0.026
1.739MetSer: 1.739 ± 0.039
1.255MetThr: 1.255 ± 0.033
1.555MetVal: 1.555 ± 0.034
0.155MetTrp: 0.155 ± 0.012
0.914MetTyr: 0.914 ± 0.027
0.0MetXaa: 0.0 ± 0.0
Asn
3.139AsnAla: 3.139 ± 0.055
0.685AsnCys: 0.685 ± 0.025
3.838AsnAsp: 3.838 ± 0.062
5.131AsnGlu: 5.131 ± 0.069
2.651AsnPhe: 2.651 ± 0.045
4.109AsnGly: 4.109 ± 0.063
0.868AsnHis: 0.868 ± 0.025
7.583AsnIle: 7.583 ± 0.09
6.31AsnLys: 6.31 ± 0.078
5.848AsnLeu: 5.848 ± 0.079
1.815AsnMet: 1.815 ± 0.04
5.256AsnAsn: 5.256 ± 0.105
2.101AsnPro: 2.101 ± 0.035
1.33AsnGln: 1.33 ± 0.032
1.86AsnArg: 1.86 ± 0.033
4.316AsnSer: 4.316 ± 0.071
3.165AsnThr: 3.165 ± 0.05
3.863AsnVal: 3.863 ± 0.055
0.462AsnTrp: 0.462 ± 0.018
2.875AsnTyr: 2.875 ± 0.05
0.0AsnXaa: 0.0 ± 0.0
Pro
1.433ProAla: 1.433 ± 0.033
0.321ProCys: 0.321 ± 0.014
1.523ProAsp: 1.523 ± 0.04
2.131ProGlu: 2.131 ± 0.043
1.381ProPhe: 1.381 ± 0.042
1.548ProGly: 1.548 ± 0.037
0.479ProHis: 0.479 ± 0.019
2.705ProIle: 2.705 ± 0.048
2.162ProLys: 2.162 ± 0.038
2.375ProLeu: 2.375 ± 0.046
0.7ProMet: 0.7 ± 0.022
1.51ProAsn: 1.51 ± 0.036
0.52ProPro: 0.52 ± 0.021
0.72ProGln: 0.72 ± 0.025
0.726ProArg: 0.726 ± 0.026
1.811ProSer: 1.811 ± 0.039
1.315ProThr: 1.315 ± 0.034
1.874ProVal: 1.874 ± 0.036
0.256ProTrp: 0.256 ± 0.015
1.316ProTyr: 1.316 ± 0.035
0.0ProXaa: 0.0 ± 0.0
Gln
1.343GlnAla: 1.343 ± 0.034
0.258GlnCys: 0.258 ± 0.015
1.173GlnAsp: 1.173 ± 0.029
1.629GlnGlu: 1.629 ± 0.037
0.953GlnPhe: 0.953 ± 0.026
1.433GlnGly: 1.433 ± 0.037
0.259GlnHis: 0.259 ± 0.015
2.184GlnIle: 2.184 ± 0.044
1.956GlnLys: 1.956 ± 0.038
1.953GlnLeu: 1.953 ± 0.045
0.663GlnMet: 0.663 ± 0.023
1.448GlnAsn: 1.448 ± 0.036
0.54GlnPro: 0.54 ± 0.023
0.563GlnGln: 0.563 ± 0.024
0.867GlnArg: 0.867 ± 0.027
1.359GlnSer: 1.359 ± 0.034
1.042GlnThr: 1.042 ± 0.029
1.403GlnVal: 1.403 ± 0.034
0.222GlnTrp: 0.222 ± 0.012
1.029GlnTyr: 1.029 ± 0.032
0.0GlnXaa: 0.0 ± 0.0
Arg
1.649ArgAla: 1.649 ± 0.037
0.405ArgCys: 0.405 ± 0.022
1.721ArgAsp: 1.721 ± 0.036
2.661ArgGlu: 2.661 ± 0.051
1.362ArgPhe: 1.362 ± 0.03
1.75ArgGly: 1.75 ± 0.04
0.429ArgHis: 0.429 ± 0.019
3.108ArgIle: 3.108 ± 0.047
2.959ArgLys: 2.959 ± 0.054
2.707ArgLeu: 2.707 ± 0.052
0.909ArgMet: 0.909 ± 0.028
2.112ArgAsn: 2.112 ± 0.043
0.735ArgPro: 0.735 ± 0.026
0.767ArgGln: 0.767 ± 0.026
1.233ArgArg: 1.233 ± 0.037
1.593ArgSer: 1.593 ± 0.034
1.509ArgThr: 1.509 ± 0.039
1.965ArgVal: 1.965 ± 0.045
0.242ArgTrp: 0.242 ± 0.014
1.454ArgTyr: 1.454 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
3.298SerAla: 3.298 ± 0.061
0.659SerCys: 0.659 ± 0.025
3.652SerAsp: 3.652 ± 0.062
4.443SerGlu: 4.443 ± 0.061
2.923SerPhe: 2.923 ± 0.055
4.303SerGly: 4.303 ± 0.068
0.861SerHis: 0.861 ± 0.025
6.789SerIle: 6.789 ± 0.092
5.782SerLys: 5.782 ± 0.073
6.006SerLeu: 6.006 ± 0.073
1.695SerMet: 1.695 ± 0.033
4.164SerAsn: 4.164 ± 0.073
1.514SerPro: 1.514 ± 0.038
1.506SerGln: 1.506 ± 0.038
1.897SerArg: 1.897 ± 0.041
4.527SerSer: 4.527 ± 0.082
3.216SerThr: 3.216 ± 0.055
3.781SerVal: 3.781 ± 0.056
0.465SerTrp: 0.465 ± 0.023
2.727SerTyr: 2.727 ± 0.049
0.0SerXaa: 0.0 ± 0.0
Thr
2.854ThrAla: 2.854 ± 0.054
0.541ThrCys: 0.541 ± 0.023
2.502ThrAsp: 2.502 ± 0.055
3.044ThrGlu: 3.044 ± 0.044
2.265ThrPhe: 2.265 ± 0.042
3.543ThrGly: 3.543 ± 0.065
0.69ThrHis: 0.69 ± 0.021
4.972ThrIle: 4.972 ± 0.059
3.679ThrLys: 3.679 ± 0.06
4.842ThrLeu: 4.842 ± 0.057
1.126ThrMet: 1.126 ± 0.026
2.832ThrAsn: 2.832 ± 0.048
1.731ThrPro: 1.731 ± 0.041
1.135ThrGln: 1.135 ± 0.027
1.482ThrArg: 1.482 ± 0.034
3.258ThrSer: 3.258 ± 0.06
2.775ThrThr: 2.775 ± 0.06
3.272ThrVal: 3.272 ± 0.053
0.394ThrTrp: 0.394 ± 0.023
2.058ThrTyr: 2.058 ± 0.043
0.0ThrXaa: 0.0 ± 0.0
Val
3.693ValAla: 3.693 ± 0.058
0.875ValCys: 0.875 ± 0.024
3.69ValAsp: 3.69 ± 0.058
4.303ValGlu: 4.303 ± 0.063
2.711ValPhe: 2.711 ± 0.057
4.042ValGly: 4.042 ± 0.07
0.788ValHis: 0.788 ± 0.025
6.079ValIle: 6.079 ± 0.077
5.279ValLys: 5.279 ± 0.074
5.554ValLeu: 5.554 ± 0.073
1.572ValMet: 1.572 ± 0.038
3.828ValAsn: 3.828 ± 0.059
1.891ValPro: 1.891 ± 0.041
1.36ValGln: 1.36 ± 0.03
1.862ValArg: 1.862 ± 0.04
4.242ValSer: 4.242 ± 0.068
3.31ValThr: 3.31 ± 0.058
4.264ValVal: 4.264 ± 0.066
0.403ValTrp: 0.403 ± 0.019
2.405ValTyr: 2.405 ± 0.045
0.0ValXaa: 0.0 ± 0.0
Trp
0.422TrpAla: 0.422 ± 0.02
0.11TrpCys: 0.11 ± 0.01
0.379TrpAsp: 0.379 ± 0.02
0.384TrpGlu: 0.384 ± 0.018
0.361TrpPhe: 0.361 ± 0.018
0.494TrpGly: 0.494 ± 0.021
0.133TrpHis: 0.133 ± 0.01
0.765TrpIle: 0.765 ± 0.025
0.493TrpLys: 0.493 ± 0.021
0.58TrpLeu: 0.58 ± 0.02
0.227TrpMet: 0.227 ± 0.014
0.513TrpAsn: 0.513 ± 0.022
0.163TrpPro: 0.163 ± 0.014
0.239TrpGln: 0.239 ± 0.015
0.24TrpArg: 0.24 ± 0.014
0.418TrpSer: 0.418 ± 0.019
0.382TrpThr: 0.382 ± 0.019
0.389TrpVal: 0.389 ± 0.016
0.086TrpTrp: 0.086 ± 0.009
0.461TrpTyr: 0.461 ± 0.032
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.026TyrAla: 2.026 ± 0.045
0.552TyrCys: 0.552 ± 0.02
2.78TyrAsp: 2.78 ± 0.05
3.23TyrGlu: 3.23 ± 0.061
1.994TyrPhe: 1.994 ± 0.045
2.64TyrGly: 2.64 ± 0.044
0.579TyrHis: 0.579 ± 0.026
4.142TyrIle: 4.142 ± 0.062
3.929TyrLys: 3.929 ± 0.06
3.896TyrLeu: 3.896 ± 0.059
1.017TyrMet: 1.017 ± 0.028
3.021TyrAsn: 3.021 ± 0.056
1.295TyrPro: 1.295 ± 0.031
0.745TyrGln: 0.745 ± 0.031
1.41TyrArg: 1.41 ± 0.03
2.873TyrSer: 2.873 ± 0.058
2.079TyrThr: 2.079 ± 0.048
2.434TyrVal: 2.434 ± 0.041
0.313TyrTrp: 0.313 ± 0.019
2.088TyrTyr: 2.088 ± 0.054
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 3965 proteins (1262054 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