ATP2/YJR121W Additional Physico-chemical Properties Help

Physico-chemical properties were determined using the ProtParam tool available through ExPASy to analyze the primary protein sequence for atomic composition, extinction coefficient, estimated half-life, instability index and aliphatic index. Transcript translation calculations were determined using CodonW.


A.A. Composition
Ala[A] 54 10.6%
Arg[R] 25 4.9%
Asn[N] 11 2.2%
Asp[D] 25 4.9%
Cys[C] 1 0.2%
Gln[Q] 20 3.9%
Glu[E] 38 7.4%
Gly[G] 46 9.0%
His[H] 7 1.4%
Ile[I] 34 6.7%
Leu[L] 48 9.4%
Lys[K] 29 5.7%
Met[M] 8 1.6%
Phe[F] 18 3.5%
Pro[P] 25 4.9%
Ser[S] 28 5.5%
Thr[T] 37 7.2%
Trp[W] 1 0.2%
Tyr[Y] 11 2.2%
Val[V] 45 8.8%
Total Length 511

Instability index
Instability index (II) 31.91
This classifies the protein as stable

Atomic composition
Carbon 2443
Hydrogen 3953
Nitrogen 661
Oxygen 745
Sulfur 9
Total number of atoms 7811
Formula = C2443H3953N661O745S9

Estimated half-life
Escherichia coli (in vivo) >10 hours
mammalian reticulocytes (in vitro) 30 hours
yeast (in vivo) >20 hours

Extinction Coefficients at 280 nm
assuming ALL Cys residues appear as half cystines 21890 M-1 cm-1
assuming NO Cys residues appear as half cystines 21890 M-1 cm-1
assuming all Cys residues are reduced 21890 M-1 cm-1
assuming all pairs of Cys residues form cystines 21890 M-1 cm-1

Aliphatic index
Aliphatic index 98.69

Coding Region Translation Calculations
Codon Bias 0.473
Codon Adaptation Index 0.425
Frequency of Optimal Codons 0.679
Hydropathicity of Protein -0.018
Aromaticity Score 0.059