VMA8/YEL051W 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] 22 8.6%
Arg[R] 21 8.2%
Asn[N] 10 3.9%
Asp[D] 15 5.9%
Cys[C] 0 0.0%
Gln[Q] 17 6.6%
Glu[E] 27 10.5%
Gly[G] 13 5.1%
His[H] 1 0.4%
Ile[I] 15 5.9%
Leu[L] 20 7.8%
Lys[K] 19 7.4%
Met[M] 6 2.3%
Phe[F] 9 3.5%
Pro[P] 4 1.6%
Ser[S] 14 5.5%
Thr[T] 16 6.2%
Trp[W] 0 0.0%
Tyr[Y] 8 3.1%
Val[V] 19 7.4%
Total Length 256

Instability index
Instability index (II) 36.99
This classifies the protein as stable

Atomic composition
Carbon 1272
Hydrogen 2071
Nitrogen 367
Oxygen 406
Sulfur 6
Total number of atoms 4122
Formula = C1272H2071N367O406S6

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 11920 M-1 cm-1

Aliphatic index
Aliphatic index 83.44

Coding Region Translation Calculations
Codon Bias 0.359
Codon Adaptation Index 0.322
Frequency of Optimal Codons 0.620
Hydropathicity of Protein -0.618
Aromaticity Score 0.066