VMA2/YBR127C 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] 36 7.0%
Arg[R] 33 6.4%
Asn[N] 23 4.4%
Asp[D] 36 7.0%
Cys[C] 1 0.2%
Gln[Q] 16 3.1%
Glu[E] 44 8.5%
Gly[G] 37 7.2%
His[H] 7 1.4%
Ile[I] 42 8.1%
Leu[L] 42 8.1%
Lys[K] 26 5.0%
Met[M] 12 2.3%
Phe[F] 20 3.9%
Pro[P] 27 5.2%
Ser[S] 33 6.4%
Thr[T] 31 6.0%
Trp[W] 1 0.2%
Tyr[Y] 19 3.7%
Val[V] 31 6.0%
Total Length 517

Instability index
Instability index (II) 33.72
This classifies the protein as stable

Atomic composition
Carbon 2556
Hydrogen 4052
Nitrogen 696
Oxygen 800
Sulfur 13
Total number of atoms 8117
Formula = C2556H4052N696O800S13

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 33810 M-1 cm-1
assuming NO Cys residues appear as half cystines 33810 M-1 cm-1
assuming all Cys residues are reduced 33810 M-1 cm-1
assuming all pairs of Cys residues form cystines 33810 M-1 cm-1

Aliphatic index
Aliphatic index 87.72

Coding Region Translation Calculations
Codon Bias 0.474
Codon Adaptation Index 0.390
Frequency of Optimal Codons 0.687
Hydropathicity of Protein -0.378
Aromaticity Score 0.077