ATP6/Q0085 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] 15 5.8%
Arg[R] 4 1.5%
Asn[N] 14 5.4%
Asp[D] 4 1.5%
Cys[C] 1 0.4%
Gln[Q] 5 1.9%
Glu[E] 4 1.5%
Gly[G] 17 6.6%
His[H] 4 1.5%
Ile[I] 34 13.1%
Leu[L] 46 17.8%
Lys[K] 5 1.9%
Met[M] 11 4.2%
Phe[F] 22 8.5%
Pro[P] 8 3.1%
Ser[S] 18 6.9%
Thr[T] 18 6.9%
Trp[W] 5 1.9%
Tyr[Y] 11 4.2%
Val[V] 13 5.0%
Total Length 259

Instability index
Instability index (II) 29.57
This classifies the protein as stable

Atomic composition
Carbon 1395
Hydrogen 2156
Nitrogen 308
Oxygen 342
Sulfur 12
Total number of atoms 4213
Formula = C1395H2156N308O342S12

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 43890 M-1 cm-1
assuming NO Cys residues appear as half cystines 43890 M-1 cm-1
assuming all Cys residues are reduced 43890 M-1 cm-1
assuming all pairs of Cys residues form cystines 43890 M-1 cm-1

Aliphatic index
Aliphatic index 140.81

Coding Region Translation Calculations
Codon Bias -0.176
Codon Adaptation Index 0.176
Frequency of Optimal Codons 0.403
Hydropathicity of Protein 1.097
Aromaticity Score 0.147