VPS21/YOR089C 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] 23 11.0%
Arg[R] 9 4.3%
Asn[N] 15 7.1%
Asp[D] 8 3.8%
Cys[C] 2 1.0%
Gln[Q] 8 3.8%
Glu[E] 22 10.5%
Gly[G] 13 6.2%
His[H] 3 1.4%
Ile[I] 12 5.7%
Leu[L] 16 7.6%
Lys[K] 15 7.1%
Met[M] 3 1.4%
Phe[F] 9 4.3%
Pro[P] 4 1.9%
Ser[S] 15 7.1%
Thr[T] 12 5.7%
Trp[W] 2 1.0%
Tyr[Y] 3 1.4%
Val[V] 16 7.6%
Total Length 210

Instability index
Instability index (II) 22.43
This classifies the protein as stable

Atomic composition
Carbon 1011
Hydrogen 1617
Nitrogen 283
Oxygen 324
Sulfur 5
Total number of atoms 3240
Formula = C1011H1617N283O324S5

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 15595 M-1 cm-1
assuming NO Cys residues appear as half cystines 15470 M-1 cm-1
assuming all Cys residues are reduced 15470 M-1 cm-1
assuming all pairs of Cys residues form cystines 15595 M-1 cm-1

Aliphatic index
Aliphatic index 85.05

Coding Region Translation Calculations
Codon Bias 0.176
Codon Adaptation Index 0.148
Frequency of Optimal Codons 0.512
Hydropathicity of Protein -0.345
Aromaticity Score 0.067