Amino acid dipepetide frequency for Torque teno virus 21

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
5.682AlaAla: 5.682 ± 12.674
2.273AlaCys: 2.273 ± 0.963
3.409AlaAsp: 3.409 ± 7.605
2.273AlaGlu: 2.273 ± 0.963
1.136AlaPhe: 1.136 ± 0.482
2.273AlaGly: 2.273 ± 2.053
0.0AlaHis: 0.0 ± 0.0
4.545AlaIle: 4.545 ± 1.926
0.0AlaLys: 0.0 ± 0.0
4.545AlaLeu: 4.545 ± 4.106
2.273AlaMet: 2.273 ± 0.963
2.273AlaAsn: 2.273 ± 0.963
4.545AlaPro: 4.545 ± 4.106
1.136AlaGln: 1.136 ± 0.482
1.136AlaArg: 1.136 ± 0.482
1.136AlaSer: 1.136 ± 0.482
1.136AlaThr: 1.136 ± 0.482
3.409AlaVal: 3.409 ± 1.445
2.273AlaTrp: 2.273 ± 0.963
2.273AlaTyr: 2.273 ± 2.053
0.0AlaXaa: 0.0 ± 0.0
Cys
0.0CysAla: 0.0 ± 0.0
1.136CysCys: 1.136 ± 0.482
1.136CysAsp: 1.136 ± 2.535
0.0CysGlu: 0.0 ± 0.0
1.136CysPhe: 1.136 ± 2.535
3.409CysGly: 3.409 ± 1.572
0.0CysHis: 0.0 ± 0.0
2.273CysIle: 2.273 ± 0.963
1.136CysLys: 1.136 ± 0.482
0.0CysLeu: 0.0 ± 0.0
1.136CysMet: 1.136 ± 0.482
1.136CysAsn: 1.136 ± 0.482
3.409CysPro: 3.409 ± 1.572
1.136CysGln: 1.136 ± 2.535
2.273CysArg: 2.273 ± 0.963
2.273CysSer: 2.273 ± 0.963
0.0CysThr: 0.0 ± 0.0
0.0CysVal: 0.0 ± 0.0
0.0CysTrp: 0.0 ± 0.0
0.0CysTyr: 0.0 ± 0.0
0.0CysXaa: 0.0 ± 0.0
Asp
3.409AspAla: 3.409 ± 1.572
0.0AspCys: 0.0 ± 0.0
4.545AspAsp: 4.545 ± 4.106
1.136AspGlu: 1.136 ± 0.482
5.682AspPhe: 5.682 ± 0.608
3.409AspGly: 3.409 ± 4.588
0.0AspHis: 0.0 ± 0.0
1.136AspIle: 1.136 ± 0.482
3.409AspLys: 3.409 ± 1.445
7.955AspLeu: 7.955 ± 2.662
0.0AspMet: 0.0 ± 0.0
0.0AspAsn: 0.0 ± 0.0
3.409AspPro: 3.409 ± 1.445
2.273AspGln: 2.273 ± 2.053
2.273AspArg: 2.273 ± 2.053
3.409AspSer: 3.409 ± 1.445
2.273AspThr: 2.273 ± 0.963
1.136AspVal: 1.136 ± 0.482
1.136AspTrp: 1.136 ± 0.482
3.409AspTyr: 3.409 ± 1.572
0.0AspXaa: 0.0 ± 0.0
Glu
0.0GluAla: 0.0 ± 0.0
0.0GluCys: 0.0 ± 0.0
2.273GluAsp: 2.273 ± 0.963
3.409GluGlu: 3.409 ± 1.445
2.273GluPhe: 2.273 ± 0.963
1.136GluGly: 1.136 ± 2.535
0.0GluHis: 0.0 ± 0.0
4.545GluIle: 4.545 ± 1.09
4.545GluLys: 4.545 ± 1.926
1.136GluLeu: 1.136 ± 0.482
1.136GluMet: 1.136 ± 1.322
2.273GluAsn: 2.273 ± 2.053
2.273GluPro: 2.273 ± 5.07
4.545GluGln: 4.545 ± 1.09
0.0GluArg: 0.0 ± 0.0
2.273GluSer: 2.273 ± 0.963
3.409GluThr: 3.409 ± 1.445
1.136GluVal: 1.136 ± 0.482
0.0GluTrp: 0.0 ± 0.0
2.273GluTyr: 2.273 ± 0.963
0.0GluXaa: 0.0 ± 0.0
Phe
2.273PheAla: 2.273 ± 2.053
2.273PheCys: 2.273 ± 2.053
2.273PheAsp: 2.273 ± 0.963
1.136PheGlu: 1.136 ± 0.482
2.273PhePhe: 2.273 ± 0.963
3.409PheGly: 3.409 ± 1.445
3.409PheHis: 3.409 ± 1.445
2.273PheIle: 2.273 ± 2.053
4.545PheLys: 4.545 ± 1.926
7.955PheLeu: 7.955 ± 0.355
0.0PheMet: 0.0 ± 0.0
1.136PheAsn: 1.136 ± 0.482
2.273PhePro: 2.273 ± 0.963
2.273PheGln: 2.273 ± 0.963
1.136PheArg: 1.136 ± 0.482
3.409PheSer: 3.409 ± 1.572
2.273PheThr: 2.273 ± 0.963
1.136PheVal: 1.136 ± 2.535
1.136PheTrp: 1.136 ± 0.482
9.091PheTyr: 9.091 ± 3.853
0.0PheXaa: 0.0 ± 0.0
Gly
1.136GlyAla: 1.136 ± 0.482
2.273GlyCys: 2.273 ± 5.07
6.818GlyAsp: 6.818 ± 9.176
0.0GlyGlu: 0.0 ± 0.0
0.0GlyPhe: 0.0 ± 0.0
6.818GlyGly: 6.818 ± 6.16
2.273GlyHis: 2.273 ± 0.963
1.136GlyIle: 1.136 ± 0.482
5.682GlyLys: 5.682 ± 2.408
3.409GlyLeu: 3.409 ± 1.445
0.0GlyMet: 0.0 ± 0.0
4.545GlyAsn: 4.545 ± 1.09
6.818GlyPro: 6.818 ± 6.16
3.409GlyGln: 3.409 ± 1.445
4.545GlyArg: 4.545 ± 1.09
2.273GlySer: 2.273 ± 0.963
2.273GlyThr: 2.273 ± 0.963
0.0GlyVal: 0.0 ± 0.0
0.0GlyTrp: 0.0 ± 0.0
2.273GlyTyr: 2.273 ± 0.963
0.0GlyXaa: 0.0 ± 0.0
His
2.273HisAla: 2.273 ± 0.963
0.0HisCys: 0.0 ± 0.0
1.136HisAsp: 1.136 ± 0.482
0.0HisGlu: 0.0 ± 0.0
0.0HisPhe: 0.0 ± 0.0
3.409HisGly: 3.409 ± 1.572
0.0HisHis: 0.0 ± 0.0
2.273HisIle: 2.273 ± 2.053
0.0HisLys: 0.0 ± 0.0
3.409HisLeu: 3.409 ± 1.445
0.0HisMet: 0.0 ± 0.0
2.273HisAsn: 2.273 ± 0.963
3.409HisPro: 3.409 ± 1.445
1.136HisGln: 1.136 ± 2.535
0.0HisArg: 0.0 ± 0.0
0.0HisSer: 0.0 ± 0.0
3.409HisThr: 3.409 ± 1.572
0.0HisVal: 0.0 ± 0.0
0.0HisTrp: 0.0 ± 0.0
0.0HisTyr: 0.0 ± 0.0
0.0HisXaa: 0.0 ± 0.0
Ile
1.136IleAla: 1.136 ± 0.482
2.273IleCys: 2.273 ± 0.963
0.0IleAsp: 0.0 ± 0.0
1.136IleGlu: 1.136 ± 0.482
4.545IlePhe: 4.545 ± 1.926
0.0IleGly: 0.0 ± 0.0
4.545IleHis: 4.545 ± 1.926
3.409IleIle: 3.409 ± 1.572
4.545IleLys: 4.545 ± 1.926
1.136IleLeu: 1.136 ± 0.482
0.0IleMet: 0.0 ± 0.0
6.818IleAsn: 6.818 ± 3.143
4.545IlePro: 4.545 ± 1.926
2.273IleGln: 2.273 ± 0.963
5.682IleArg: 5.682 ± 0.608
0.0IleSer: 0.0 ± 0.0
1.136IleThr: 1.136 ± 0.482
1.136IleVal: 1.136 ± 0.482
1.136IleTrp: 1.136 ± 0.482
3.409IleTyr: 3.409 ± 1.572
0.0IleXaa: 0.0 ± 0.0
Lys
0.0LysAla: 0.0 ± 0.0
0.0LysCys: 0.0 ± 0.0
3.409LysAsp: 3.409 ± 1.445
2.273LysGlu: 2.273 ± 2.053
3.409LysPhe: 3.409 ± 1.445
3.409LysGly: 3.409 ± 1.445
0.0LysHis: 0.0 ± 0.0
5.682LysIle: 5.682 ± 2.408
6.818LysLys: 6.818 ± 0.127
4.545LysLeu: 4.545 ± 1.926
1.136LysMet: 1.136 ± 0.482
1.136LysAsn: 1.136 ± 0.482
7.955LysPro: 7.955 ± 3.371
1.136LysGln: 1.136 ± 0.482
3.409LysArg: 3.409 ± 4.588
2.273LysSer: 2.273 ± 0.963
3.409LysThr: 3.409 ± 1.445
2.273LysVal: 2.273 ± 0.963
2.273LysTrp: 2.273 ± 0.963
3.409LysTyr: 3.409 ± 1.445
0.0LysXaa: 0.0 ± 0.0
Leu
3.409LeuAla: 3.409 ± 1.572
3.409LeuCys: 3.409 ± 1.445
2.273LeuAsp: 2.273 ± 2.053
2.273LeuGlu: 2.273 ± 2.053
7.955LeuPhe: 7.955 ± 0.355
3.409LeuGly: 3.409 ± 1.445
7.955LeuHis: 7.955 ± 5.678
1.136LeuIle: 1.136 ± 0.482
3.409LeuLys: 3.409 ± 1.445
5.682LeuLeu: 5.682 ± 6.641
1.136LeuMet: 1.136 ± 0.482
2.273LeuAsn: 2.273 ± 0.963
4.545LeuPro: 4.545 ± 4.106
6.818LeuGln: 6.818 ± 0.127
7.955LeuArg: 7.955 ± 0.355
4.545LeuSer: 4.545 ± 1.926
3.409LeuThr: 3.409 ± 1.445
3.409LeuVal: 3.409 ± 1.572
1.136LeuTrp: 1.136 ± 0.482
2.273LeuTyr: 2.273 ± 0.963
0.0LeuXaa: 0.0 ± 0.0
Met
1.136MetAla: 1.136 ± 0.482
1.136MetCys: 1.136 ± 0.482
1.136MetAsp: 1.136 ± 0.482
0.0MetGlu: 0.0 ± 0.0
0.0MetPhe: 0.0 ± 0.0
2.273MetGly: 2.273 ± 0.963
0.0MetHis: 0.0 ± 0.0
1.136MetIle: 1.136 ± 0.482
0.0MetLys: 0.0 ± 0.0
3.409MetLeu: 3.409 ± 1.572
1.136MetMet: 1.136 ± 0.482
0.0MetAsn: 0.0 ± 0.0
0.0MetPro: 0.0 ± 0.0
0.0MetGln: 0.0 ± 0.0
1.136MetArg: 1.136 ± 2.535
1.136MetSer: 1.136 ± 2.535
1.136MetThr: 1.136 ± 0.482
1.136MetVal: 1.136 ± 0.482
2.273MetTrp: 2.273 ± 0.963
0.0MetTyr: 0.0 ± 0.0
0.0MetXaa: 0.0 ± 0.0
Asn
3.409AsnAla: 3.409 ± 1.572
0.0AsnCys: 0.0 ± 0.0
1.136AsnAsp: 1.136 ± 0.482
1.136AsnGlu: 1.136 ± 0.482
3.409AsnPhe: 3.409 ± 1.572
2.273AsnGly: 2.273 ± 0.963
1.136AsnHis: 1.136 ± 2.535
2.273AsnIle: 2.273 ± 0.963
3.409AsnLys: 3.409 ± 1.445
6.818AsnLeu: 6.818 ± 3.143
1.136AsnMet: 1.136 ± 0.482
2.273AsnAsn: 2.273 ± 0.963
6.818AsnPro: 6.818 ± 2.89
1.136AsnGln: 1.136 ± 0.482
1.136AsnArg: 1.136 ± 0.482
2.273AsnSer: 2.273 ± 0.963
4.545AsnThr: 4.545 ± 1.926
1.136AsnVal: 1.136 ± 0.482
0.0AsnTrp: 0.0 ± 0.0
2.273AsnTyr: 2.273 ± 0.963
0.0AsnXaa: 0.0 ± 0.0
Pro
5.682ProAla: 5.682 ± 3.625
1.136ProCys: 1.136 ± 0.482
0.0ProAsp: 0.0 ± 0.0
6.818ProGlu: 6.818 ± 3.143
5.682ProPhe: 5.682 ± 2.408
5.682ProGly: 5.682 ± 0.608
0.0ProHis: 0.0 ± 0.0
3.409ProIle: 3.409 ± 1.445
4.545ProLys: 4.545 ± 1.09
3.409ProLeu: 3.409 ± 4.588
2.273ProMet: 2.273 ± 0.963
6.818ProAsn: 6.818 ± 2.89
6.818ProPro: 6.818 ± 0.127
2.273ProGln: 2.273 ± 0.963
4.545ProArg: 4.545 ± 1.926
5.682ProSer: 5.682 ± 0.608
7.955ProThr: 7.955 ± 2.662
3.409ProVal: 3.409 ± 1.572
1.136ProTrp: 1.136 ± 2.535
2.273ProTyr: 2.273 ± 0.963
0.0ProXaa: 0.0 ± 0.0
Gln
4.545GlnAla: 4.545 ± 1.926
0.0GlnCys: 0.0 ± 0.0
1.136GlnAsp: 1.136 ± 0.482
5.682GlnGlu: 5.682 ± 0.608
2.273GlnPhe: 2.273 ± 2.053
0.0GlnGly: 0.0 ± 0.0
0.0GlnHis: 0.0 ± 0.0
1.136GlnIle: 1.136 ± 0.482
2.273GlnLys: 2.273 ± 0.963
4.545GlnLeu: 4.545 ± 1.926
1.136GlnMet: 1.136 ± 2.345
2.273GlnAsn: 2.273 ± 2.053
2.273GlnPro: 2.273 ± 2.053
10.227GlnGln: 10.227 ± 4.334
2.273GlnArg: 2.273 ± 0.963
4.545GlnSer: 4.545 ± 1.926
1.136GlnThr: 1.136 ± 0.482
6.818GlnVal: 6.818 ± 2.89
1.136GlnTrp: 1.136 ± 0.482
0.0GlnTyr: 0.0 ± 0.0
0.0GlnXaa: 0.0 ± 0.0
Arg
2.273ArgAla: 2.273 ± 2.053
2.273ArgCys: 2.273 ± 2.053
3.409ArgAsp: 3.409 ± 1.445
2.273ArgGlu: 2.273 ± 2.053
4.545ArgPhe: 4.545 ± 1.09
4.545ArgGly: 4.545 ± 4.106
0.0ArgHis: 0.0 ± 0.0
3.409ArgIle: 3.409 ± 1.572
3.409ArgLys: 3.409 ± 1.572
5.682ArgLeu: 5.682 ± 3.625
0.0ArgMet: 0.0 ± 0.0
1.136ArgAsn: 1.136 ± 0.482
4.545ArgPro: 4.545 ± 1.926
2.273ArgGln: 2.273 ± 0.963
36.364ArgArg: 36.364 ± 9.378
3.409ArgSer: 3.409 ± 1.445
4.545ArgThr: 4.545 ± 1.09
3.409ArgVal: 3.409 ± 1.445
5.682ArgTrp: 5.682 ± 2.408
2.273ArgTyr: 2.273 ± 0.963
0.0ArgXaa: 0.0 ± 0.0
Ser
2.273SerAla: 2.273 ± 0.963
1.136SerCys: 1.136 ± 0.482
5.682SerAsp: 5.682 ± 2.408
4.545SerGlu: 4.545 ± 1.926
6.818SerPhe: 6.818 ± 2.89
1.136SerGly: 1.136 ± 0.482
0.0SerHis: 0.0 ± 0.0
1.136SerIle: 1.136 ± 0.482
0.0SerLys: 0.0 ± 0.0
3.409SerLeu: 3.409 ± 1.445
0.0SerMet: 0.0 ± 0.0
1.136SerAsn: 1.136 ± 0.482
5.682SerPro: 5.682 ± 2.408
2.273SerGln: 2.273 ± 0.963
5.682SerArg: 5.682 ± 0.608
2.273SerSer: 2.273 ± 0.963
5.682SerThr: 5.682 ± 0.608
1.136SerVal: 1.136 ± 0.482
1.136SerTrp: 1.136 ± 2.535
1.136SerTyr: 1.136 ± 0.482
0.0SerXaa: 0.0 ± 0.0
Thr
2.273ThrAla: 2.273 ± 2.053
1.136ThrCys: 1.136 ± 2.535
2.273ThrAsp: 2.273 ± 0.963
3.409ThrGlu: 3.409 ± 1.572
2.273ThrPhe: 2.273 ± 0.963
3.409ThrGly: 3.409 ± 1.572
1.136ThrHis: 1.136 ± 0.482
3.409ThrIle: 3.409 ± 1.445
3.409ThrLys: 3.409 ± 1.445
3.409ThrLeu: 3.409 ± 1.445
1.136ThrMet: 1.136 ± 0.482
3.409ThrAsn: 3.409 ± 1.445
4.545ThrPro: 4.545 ± 1.09
5.682ThrGln: 5.682 ± 2.408
3.409ThrArg: 3.409 ± 1.445
3.409ThrSer: 3.409 ± 1.445
9.091ThrThr: 9.091 ± 3.853
1.136ThrVal: 1.136 ± 0.482
2.273ThrTrp: 2.273 ± 0.963
6.818ThrTyr: 6.818 ± 2.89
0.0ThrXaa: 0.0 ± 0.0
Val
0.0ValAla: 0.0 ± 0.0
1.136ValCys: 1.136 ± 0.482
4.545ValAsp: 4.545 ± 1.926
0.0ValGlu: 0.0 ± 0.0
1.136ValPhe: 1.136 ± 0.482
1.136ValGly: 1.136 ± 2.535
1.136ValHis: 1.136 ± 0.482
2.273ValIle: 2.273 ± 0.963
1.136ValLys: 1.136 ± 0.482
4.545ValLeu: 4.545 ± 1.926
2.273ValMet: 2.273 ± 2.053
2.273ValAsn: 2.273 ± 0.963
2.273ValPro: 2.273 ± 2.053
0.0ValGln: 0.0 ± 0.0
2.273ValArg: 2.273 ± 0.963
2.273ValSer: 2.273 ± 0.963
3.409ValThr: 3.409 ± 1.445
1.136ValVal: 1.136 ± 0.482
0.0ValTrp: 0.0 ± 0.0
1.136ValTyr: 1.136 ± 0.482
0.0ValXaa: 0.0 ± 0.0
Trp
2.273TrpAla: 2.273 ± 0.963
0.0TrpCys: 0.0 ± 0.0
1.136TrpAsp: 1.136 ± 0.482
1.136TrpGlu: 1.136 ± 0.482
1.136TrpPhe: 1.136 ± 0.482
2.273TrpGly: 2.273 ± 0.963
0.0TrpHis: 0.0 ± 0.0
0.0TrpIle: 0.0 ± 0.0
0.0TrpLys: 0.0 ± 0.0
1.136TrpLeu: 1.136 ± 0.482
0.0TrpMet: 0.0 ± 0.0
1.136TrpAsn: 1.136 ± 0.482
0.0TrpPro: 0.0 ± 0.0
2.273TrpGln: 2.273 ± 0.963
5.682TrpArg: 5.682 ± 3.625
1.136TrpSer: 1.136 ± 0.482
2.273TrpThr: 2.273 ± 0.963
0.0TrpVal: 0.0 ± 0.0
2.273TrpTrp: 2.273 ± 0.963
2.273TrpTyr: 2.273 ± 0.963
0.0TrpXaa: 0.0 ± 0.0
Tyr
4.545TyrAla: 4.545 ± 1.09
0.0TyrCys: 0.0 ± 0.0
2.273TyrAsp: 2.273 ± 0.963
0.0TyrGlu: 0.0 ± 0.0
0.0TyrPhe: 0.0 ± 0.0
2.273TyrGly: 2.273 ± 0.963
1.136TyrHis: 1.136 ± 0.482
2.273TyrIle: 2.273 ± 0.963
5.682TyrLys: 5.682 ± 0.608
2.273TyrLeu: 2.273 ± 0.963
1.136TyrMet: 1.136 ± 0.482
3.409TyrAsn: 3.409 ± 1.445
3.409TyrPro: 3.409 ± 1.445
2.273TyrGln: 2.273 ± 0.963
4.545TyrArg: 4.545 ± 1.09
4.545TyrSer: 4.545 ± 1.926
4.545TyrThr: 4.545 ± 1.926
1.136TyrVal: 1.136 ± 0.482
1.136TyrTrp: 1.136 ± 0.482
2.273TyrTyr: 2.273 ± 0.963
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 2 proteins (881 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