Amino acid dipepetide frequency for Vitreoscilla sp. (strain C1)

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
11.123AlaAla: 11.123 ± 0.196
1.279AlaCys: 1.279 ± 0.047
4.965AlaAsp: 4.965 ± 0.095
5.305AlaGlu: 5.305 ± 0.108
3.629AlaPhe: 3.629 ± 0.069
6.487AlaGly: 6.487 ± 0.153
2.369AlaHis: 2.369 ± 0.066
5.924AlaIle: 5.924 ± 0.098
5.113AlaLys: 5.113 ± 0.1
10.957AlaLeu: 10.957 ± 0.145
3.095AlaMet: 3.095 ± 0.075
3.827AlaAsn: 3.827 ± 0.088
3.244AlaPro: 3.244 ± 0.081
6.408AlaGln: 6.408 ± 0.113
4.034AlaArg: 4.034 ± 0.083
5.29AlaSer: 5.29 ± 0.105
4.665AlaThr: 4.665 ± 0.099
7.1AlaVal: 7.1 ± 0.102
1.493AlaTrp: 1.493 ± 0.056
2.933AlaTyr: 2.933 ± 0.069
0.0AlaXaa: 0.0 ± 0.0
Cys
0.919CysAla: 0.919 ± 0.039
0.138CysCys: 0.138 ± 0.014
0.55CysAsp: 0.55 ± 0.031
0.614CysGlu: 0.614 ± 0.03
0.368CysPhe: 0.368 ± 0.025
0.995CysGly: 0.995 ± 0.042
0.36CysHis: 0.36 ± 0.027
0.557CysIle: 0.557 ± 0.034
0.35CysLys: 0.35 ± 0.021
1.098CysLeu: 1.098 ± 0.049
0.241CysMet: 0.241 ± 0.02
0.36CysAsn: 0.36 ± 0.024
0.461CysPro: 0.461 ± 0.031
0.534CysGln: 0.534 ± 0.035
0.445CysArg: 0.445 ± 0.029
0.557CysSer: 0.557 ± 0.031
0.443CysThr: 0.443 ± 0.032
0.829CysVal: 0.829 ± 0.042
0.105CysTrp: 0.105 ± 0.011
0.294CysTyr: 0.294 ± 0.023
0.0CysXaa: 0.0 ± 0.0
Asp
5.99AspAla: 5.99 ± 0.112
0.519AspCys: 0.519 ± 0.03
2.788AspAsp: 2.788 ± 0.081
3.563AspGlu: 3.563 ± 0.082
2.335AspPhe: 2.335 ± 0.056
3.821AspGly: 3.821 ± 0.089
1.005AspHis: 1.005 ± 0.042
3.542AspIle: 3.542 ± 0.076
2.522AspLys: 2.522 ± 0.068
5.661AspLeu: 5.661 ± 0.105
1.507AspMet: 1.507 ± 0.054
1.849AspAsn: 1.849 ± 0.067
1.484AspPro: 1.484 ± 0.053
1.721AspGln: 1.721 ± 0.053
1.754AspArg: 1.754 ± 0.056
2.681AspSer: 2.681 ± 0.071
2.64AspThr: 2.64 ± 0.067
4.597AspVal: 4.597 ± 0.096
0.898AspTrp: 0.898 ± 0.039
1.873AspTyr: 1.873 ± 0.059
0.0AspXaa: 0.0 ± 0.0
Glu
6.118GluAla: 6.118 ± 0.117
0.532GluCys: 0.532 ± 0.032
2.64GluAsp: 2.64 ± 0.076
2.887GluGlu: 2.887 ± 0.073
2.113GluPhe: 2.113 ± 0.059
3.277GluGly: 3.277 ± 0.08
1.839GluHis: 1.839 ± 0.063
3.251GluIle: 3.251 ± 0.09
2.88GluLys: 2.88 ± 0.069
5.2GluLeu: 5.2 ± 0.093
1.527GluMet: 1.527 ± 0.055
2.376GluAsn: 2.376 ± 0.071
1.908GluPro: 1.908 ± 0.059
3.775GluGln: 3.775 ± 0.086
3.394GluArg: 3.394 ± 0.084
2.765GluSer: 2.765 ± 0.071
2.964GluThr: 2.964 ± 0.097
4.223GluVal: 4.223 ± 0.092
0.726GluTrp: 0.726 ± 0.034
1.681GluTyr: 1.681 ± 0.055
0.0GluXaa: 0.0 ± 0.0
Phe
3.793PheAla: 3.793 ± 0.086
0.443PheCys: 0.443 ± 0.025
2.662PheAsp: 2.662 ± 0.079
2.323PheGlu: 2.323 ± 0.066
1.575PhePhe: 1.575 ± 0.056
3.148PheGly: 3.148 ± 0.074
0.805PheHis: 0.805 ± 0.034
2.241PheIle: 2.241 ± 0.071
2.008PheLys: 2.008 ± 0.059
3.432PheLeu: 3.432 ± 0.094
1.052PheMet: 1.052 ± 0.043
1.788PheAsn: 1.788 ± 0.051
1.33PhePro: 1.33 ± 0.048
1.566PheGln: 1.566 ± 0.05
1.295PheArg: 1.295 ± 0.047
2.461PheSer: 2.461 ± 0.063
2.018PheThr: 2.018 ± 0.055
2.685PheVal: 2.685 ± 0.077
0.624PheTrp: 0.624 ± 0.037
1.24PheTyr: 1.24 ± 0.047
0.0PheXaa: 0.0 ± 0.0
Gly
5.747GlyAla: 5.747 ± 0.116
0.76GlyCys: 0.76 ± 0.038
3.438GlyAsp: 3.438 ± 0.098
3.839GlyGlu: 3.839 ± 0.088
3.34GlyPhe: 3.34 ± 0.082
5.174GlyGly: 5.174 ± 0.112
1.681GlyHis: 1.681 ± 0.051
4.466GlyIle: 4.466 ± 0.098
4.074GlyLys: 4.074 ± 0.086
7.607GlyLeu: 7.607 ± 0.124
2.249GlyMet: 2.249 ± 0.069
2.573GlyAsn: 2.573 ± 0.1
1.471GlyPro: 1.471 ± 0.055
3.29GlyGln: 3.29 ± 0.081
3.281GlyArg: 3.281 ± 0.091
4.156GlySer: 4.156 ± 0.096
3.327GlyThr: 3.327 ± 0.099
5.793GlyVal: 5.793 ± 0.109
0.916GlyTrp: 0.916 ± 0.04
2.072GlyTyr: 2.072 ± 0.064
0.0GlyXaa: 0.0 ± 0.0
His
2.328HisAla: 2.328 ± 0.067
0.343HisCys: 0.343 ± 0.023
1.269HisAsp: 1.269 ± 0.046
1.31HisGlu: 1.31 ± 0.05
1.054HisPhe: 1.054 ± 0.046
1.798HisGly: 1.798 ± 0.054
0.87HisHis: 0.87 ± 0.042
2.033HisIle: 2.033 ± 0.063
1.043HisLys: 1.043 ± 0.038
2.675HisLeu: 2.675 ± 0.091
0.622HisMet: 0.622 ± 0.036
0.979HisAsn: 0.979 ± 0.038
1.419HisPro: 1.419 ± 0.049
1.568HisGln: 1.568 ± 0.058
1.039HisArg: 1.039 ± 0.048
1.35HisSer: 1.35 ± 0.045
1.504HisThr: 1.504 ± 0.048
1.653HisVal: 1.653 ± 0.05
0.389HisTrp: 0.389 ± 0.03
0.919HisTyr: 0.919 ± 0.037
0.0HisXaa: 0.0 ± 0.0
Ile
6.425IleAla: 6.425 ± 0.108
0.639IleCys: 0.639 ± 0.036
3.786IleAsp: 3.786 ± 0.093
4.059IleGlu: 4.059 ± 0.104
1.98IlePhe: 1.98 ± 0.063
4.747IleGly: 4.747 ± 0.104
1.54IleHis: 1.54 ± 0.052
3.225IleIle: 3.225 ± 0.071
2.745IleLys: 2.745 ± 0.073
5.604IleLeu: 5.604 ± 0.111
1.394IleMet: 1.394 ± 0.048
2.601IleAsn: 2.601 ± 0.074
2.442IlePro: 2.442 ± 0.058
2.693IleGln: 2.693 ± 0.07
2.476IleArg: 2.476 ± 0.072
3.543IleSer: 3.543 ± 0.081
3.243IleThr: 3.243 ± 0.068
4.269IleVal: 4.269 ± 0.085
0.647IleTrp: 0.647 ± 0.035
1.573IleTyr: 1.573 ± 0.056
0.0IleXaa: 0.0 ± 0.0
Lys
4.686LysAla: 4.686 ± 0.099
0.258LysCys: 0.258 ± 0.018
2.455LysAsp: 2.455 ± 0.068
2.473LysGlu: 2.473 ± 0.071
1.236LysPhe: 1.236 ± 0.05
2.888LysGly: 2.888 ± 0.082
1.246LysHis: 1.246 ± 0.05
3.131LysIle: 3.131 ± 0.07
2.468LysLys: 2.468 ± 0.082
4.305LysLeu: 4.305 ± 0.091
1.509LysMet: 1.509 ± 0.05
2.309LysAsn: 2.309 ± 0.07
2.343LysPro: 2.343 ± 0.07
2.942LysGln: 2.942 ± 0.08
2.52LysArg: 2.52 ± 0.07
2.563LysSer: 2.563 ± 0.07
3.131LysThr: 3.131 ± 0.069
3.448LysVal: 3.448 ± 0.096
0.673LysTrp: 0.673 ± 0.034
1.264LysTyr: 1.264 ± 0.043
0.0LysXaa: 0.0 ± 0.0
Leu
10.643LeuAla: 10.643 ± 0.163
1.107LeuCys: 1.107 ± 0.046
5.353LeuAsp: 5.353 ± 0.09
5.226LeuGlu: 5.226 ± 0.099
3.678LeuPhe: 3.678 ± 0.084
7.335LeuGly: 7.335 ± 0.123
2.437LeuHis: 2.437 ± 0.073
5.563LeuIle: 5.563 ± 0.125
5.184LeuLys: 5.184 ± 0.093
10.466LeuLeu: 10.466 ± 0.196
2.852LeuMet: 2.852 ± 0.073
4.689LeuAsn: 4.689 ± 0.087
5.569LeuPro: 5.569 ± 0.107
6.021LeuGln: 6.021 ± 0.14
4.755LeuArg: 4.755 ± 0.1
7.179LeuSer: 7.179 ± 0.13
5.205LeuThr: 5.205 ± 0.112
6.725LeuVal: 6.725 ± 0.105
1.332LeuTrp: 1.332 ± 0.055
2.463LeuTyr: 2.463 ± 0.075
0.0LeuXaa: 0.0 ± 0.0
Met
3.005MetAla: 3.005 ± 0.075
0.236MetCys: 0.236 ± 0.02
1.356MetAsp: 1.356 ± 0.049
1.095MetGlu: 1.095 ± 0.044
0.878MetPhe: 0.878 ± 0.035
2.161MetGly: 2.161 ± 0.055
0.668MetHis: 0.668 ± 0.031
1.409MetIle: 1.409 ± 0.052
1.384MetLys: 1.384 ± 0.053
2.704MetLeu: 2.704 ± 0.069
0.869MetMet: 0.869 ± 0.038
1.36MetAsn: 1.36 ± 0.047
1.368MetPro: 1.368 ± 0.045
1.681MetGln: 1.681 ± 0.048
1.383MetArg: 1.383 ± 0.047
1.885MetSer: 1.885 ± 0.055
1.635MetThr: 1.635 ± 0.048
2.218MetVal: 2.218 ± 0.063
0.307MetTrp: 0.307 ± 0.021
0.639MetTyr: 0.639 ± 0.038
0.0MetXaa: 0.0 ± 0.0
Asn
3.757AsnAla: 3.757 ± 0.109
0.355AsnCys: 0.355 ± 0.027
2.016AsnAsp: 2.016 ± 0.058
2.292AsnGlu: 2.292 ± 0.071
1.284AsnPhe: 1.284 ± 0.046
3.133AsnGly: 3.133 ± 0.096
1.261AsnHis: 1.261 ± 0.048
2.8AsnIle: 2.8 ± 0.079
1.896AsnLys: 1.896 ± 0.059
3.709AsnLeu: 3.709 ± 0.087
1.205AsnMet: 1.205 ± 0.044
1.69AsnAsn: 1.69 ± 0.075
2.228AsnPro: 2.228 ± 0.069
2.497AsnGln: 2.497 ± 0.071
2.033AsnArg: 2.033 ± 0.059
1.944AsnSer: 1.944 ± 0.057
2.502AsnThr: 2.502 ± 0.083
3.102AsnVal: 3.102 ± 0.085
0.55AsnTrp: 0.55 ± 0.031
0.964AsnTyr: 0.964 ± 0.037
0.0AsnXaa: 0.0 ± 0.0
Pro
3.414ProAla: 3.414 ± 0.085
0.299ProCys: 0.299 ± 0.025
2.128ProAsp: 2.128 ± 0.058
3.238ProGlu: 3.238 ± 0.071
1.637ProPhe: 1.637 ± 0.056
1.663ProGly: 1.663 ± 0.06
1.095ProHis: 1.095 ± 0.045
2.494ProIle: 2.494 ± 0.067
2.154ProLys: 2.154 ± 0.059
3.955ProLeu: 3.955 ± 0.094
1.207ProMet: 1.207 ± 0.044
2.008ProAsn: 2.008 ± 0.062
1.22ProPro: 1.22 ± 0.055
2.062ProGln: 2.062 ± 0.06
1.427ProArg: 1.427 ± 0.044
2.358ProSer: 2.358 ± 0.068
2.264ProThr: 2.264 ± 0.059
3.19ProVal: 3.19 ± 0.074
0.532ProTrp: 0.532 ± 0.03
1.318ProTyr: 1.318 ± 0.051
0.0ProXaa: 0.0 ± 0.0
Gln
6.464GlnAla: 6.464 ± 0.121
0.42GlnCys: 0.42 ± 0.027
2.98GlnAsp: 2.98 ± 0.063
2.939GlnGlu: 2.939 ± 0.078
1.873GlnPhe: 1.873 ± 0.064
3.281GlnGly: 3.281 ± 0.095
1.616GlnHis: 1.616 ± 0.062
3.018GlnIle: 3.018 ± 0.072
2.612GlnLys: 2.612 ± 0.08
5.707GlnLeu: 5.707 ± 0.111
1.404GlnMet: 1.404 ± 0.045
2.443GlnAsn: 2.443 ± 0.07
1.836GlnPro: 1.836 ± 0.055
4.179GlnGln: 4.179 ± 0.168
2.647GlnArg: 2.647 ± 0.066
2.875GlnSer: 2.875 ± 0.069
3.24GlnThr: 3.24 ± 0.082
3.711GlnVal: 3.711 ± 0.079
0.957GlnTrp: 0.957 ± 0.046
1.74GlnTyr: 1.74 ± 0.06
0.0GlnXaa: 0.0 ± 0.0
Arg
3.555ArgAla: 3.555 ± 0.079
0.427ArgCys: 0.427 ± 0.026
2.363ArgAsp: 2.363 ± 0.065
2.773ArgGlu: 2.773 ± 0.069
2.279ArgPhe: 2.279 ± 0.065
2.75ArgGly: 2.75 ± 0.075
1.282ArgHis: 1.282 ± 0.046
2.898ArgIle: 2.898 ± 0.076
1.847ArgLys: 1.847 ± 0.072
5.386ArgLeu: 5.386 ± 0.108
1.314ArgMet: 1.314 ± 0.043
1.714ArgAsn: 1.714 ± 0.056
1.885ArgPro: 1.885 ± 0.052
2.706ArgGln: 2.706 ± 0.063
2.268ArgArg: 2.268 ± 0.068
2.435ArgSer: 2.435 ± 0.067
2.044ArgThr: 2.044 ± 0.061
3.021ArgVal: 3.021 ± 0.069
0.532ArgTrp: 0.532 ± 0.025
1.655ArgTyr: 1.655 ± 0.057
0.0ArgXaa: 0.0 ± 0.0
Ser
4.98SerAla: 4.98 ± 0.098
0.517SerCys: 0.517 ± 0.034
2.993SerAsp: 2.993 ± 0.074
3.164SerGlu: 3.164 ± 0.085
2.277SerPhe: 2.277 ± 0.058
4.619SerGly: 4.619 ± 0.092
1.681SerHis: 1.681 ± 0.053
3.446SerIle: 3.446 ± 0.08
2.671SerLys: 2.671 ± 0.065
6.059SerLeu: 6.059 ± 0.11
1.726SerMet: 1.726 ± 0.048
2.309SerAsn: 2.309 ± 0.081
2.013SerPro: 2.013 ± 0.054
2.946SerGln: 2.946 ± 0.079
2.591SerArg: 2.591 ± 0.065
3.442SerSer: 3.442 ± 0.084
2.877SerThr: 2.877 ± 0.077
4.254SerVal: 4.254 ± 0.087
0.816SerTrp: 0.816 ± 0.035
1.535SerTyr: 1.535 ± 0.044
0.0SerXaa: 0.0 ± 0.0
Thr
4.927ThrAla: 4.927 ± 0.101
0.504ThrCys: 0.504 ± 0.029
2.832ThrAsp: 2.832 ± 0.071
3.013ThrGlu: 3.013 ± 0.07
1.942ThrPhe: 1.942 ± 0.059
3.934ThrGly: 3.934 ± 0.088
1.542ThrHis: 1.542 ± 0.053
3.164ThrIle: 3.164 ± 0.077
1.942ThrLys: 1.942 ± 0.06
5.65ThrLeu: 5.65 ± 0.107
1.22ThrMet: 1.22 ± 0.044
1.804ThrAsn: 1.804 ± 0.056
2.965ThrPro: 2.965 ± 0.071
2.887ThrGln: 2.887 ± 0.087
2.182ThrArg: 2.182 ± 0.057
2.644ThrSer: 2.644 ± 0.067
2.903ThrThr: 2.903 ± 0.11
4.2ThrVal: 4.2 ± 0.081
0.744ThrTrp: 0.744 ± 0.039
1.407ThrTyr: 1.407 ± 0.051
0.0ThrXaa: 0.0 ± 0.0
Val
7.589ValAla: 7.589 ± 0.122
0.898ValCys: 0.898 ± 0.042
4.023ValAsp: 4.023 ± 0.086
3.786ValGlu: 3.786 ± 0.084
3.067ValPhe: 3.067 ± 0.079
5.095ValGly: 5.095 ± 0.105
1.581ValHis: 1.581 ± 0.059
4.34ValIle: 4.34 ± 0.083
3.417ValLys: 3.417 ± 0.086
8.523ValLeu: 8.523 ± 0.127
2.154ValMet: 2.154 ± 0.061
3.088ValAsn: 3.088 ± 0.091
2.709ValPro: 2.709 ± 0.062
3.125ValGln: 3.125 ± 0.077
3.166ValArg: 3.166 ± 0.075
4.568ValSer: 4.568 ± 0.093
3.811ValThr: 3.811 ± 0.082
5.957ValVal: 5.957 ± 0.122
1.039ValTrp: 1.039 ± 0.046
2.126ValTyr: 2.126 ± 0.075
0.0ValXaa: 0.0 ± 0.0
Trp
1.089TrpAla: 1.089 ± 0.044
0.184TrpCys: 0.184 ± 0.016
0.637TrpAsp: 0.637 ± 0.032
0.617TrpGlu: 0.617 ± 0.033
0.632TrpPhe: 0.632 ± 0.032
0.801TrpGly: 0.801 ± 0.037
0.501TrpHis: 0.501 ± 0.029
0.695TrpIle: 0.695 ± 0.034
0.465TrpLys: 0.465 ± 0.031
1.883TrpLeu: 1.883 ± 0.072
0.478TrpMet: 0.478 ± 0.03
0.489TrpAsn: 0.489 ± 0.033
0.455TrpPro: 0.455 ± 0.028
1.384TrpGln: 1.384 ± 0.063
0.854TrpArg: 0.854 ± 0.037
0.732TrpSer: 0.732 ± 0.037
0.488TrpThr: 0.488 ± 0.026
0.974TrpVal: 0.974 ± 0.045
0.25TrpTrp: 0.25 ± 0.025
0.378TrpTyr: 0.378 ± 0.031
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.69TyrAla: 2.69 ± 0.072
0.36TyrCys: 0.36 ± 0.024
1.516TyrAsp: 1.516 ± 0.049
1.56TyrGlu: 1.56 ± 0.051
1.31TyrPhe: 1.31 ± 0.042
2.148TyrGly: 2.148 ± 0.07
0.786TyrHis: 0.786 ± 0.036
1.435TyrIle: 1.435 ± 0.044
1.074TyrLys: 1.074 ± 0.043
3.199TyrLeu: 3.199 ± 0.088
0.614TyrMet: 0.614 ± 0.036
0.962TyrAsn: 0.962 ± 0.046
1.314TyrPro: 1.314 ± 0.047
1.957TyrGln: 1.957 ± 0.059
1.591TyrArg: 1.591 ± 0.052
1.489TyrSer: 1.489 ± 0.05
1.504TyrThr: 1.504 ± 0.049
2.113TyrVal: 2.113 ± 0.064
0.455TyrTrp: 0.455 ± 0.029
0.9TyrTyr: 0.9 ± 0.042
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 2051 proteins (609036 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