ATP3/YBR039W 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] 32 10.3%
Arg[R] 14 4.5%
Asn[N] 21 6.8%
Asp[D] 15 4.8%
Cys[C] 2 0.6%
Gln[Q] 11 3.5%
Glu[E] 18 5.8%
Gly[G] 13 4.2%
His[H] 4 1.3%
Ile[I] 28 9.0%
Leu[L] 24 7.7%
Lys[K] 28 9.0%
Met[M] 11 3.5%
Phe[F] 8 2.6%
Pro[P] 11 3.5%
Ser[S] 25 8.0%
Thr[T] 22 7.1%
Trp[W] 0 0.0%
Tyr[Y] 9 2.9%
Val[V] 15 4.8%
Total Length 311

Instability index
Instability index (II) 34.54
This classifies the protein as stable

Atomic composition
Carbon 1506
Hydrogen 2473
Nitrogen 421
Oxygen 466
Sulfur 13
Total number of atoms 4879
Formula = C1506H2473N421O466S13

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 13535 M-1 cm-1
assuming NO Cys residues appear as half cystines 13410 M-1 cm-1
assuming all Cys residues are reduced 13410 M-1 cm-1
assuming all pairs of Cys residues form cystines 13535 M-1 cm-1

Aliphatic index
Aliphatic index 89.49

Coding Region Translation Calculations
Codon Bias 0.398
Codon Adaptation Index 0.337
Frequency of Optimal Codons 0.647
Hydropathicity of Protein -0.310
Aromaticity Score 0.055