STV1/YMR054W 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] 50 5.6%
Arg[R] 39 4.4%
Asn[N] 41 4.6%
Asp[D] 51 5.7%
Cys[C] 7 0.8%
Gln[Q] 37 4.2%
Glu[E] 60 6.7%
Gly[G] 56 6.3%
His[H] 21 2.4%
Ile[I] 62 7.0%
Leu[L] 98 11.0%
Lys[K] 42 4.7%
Met[M] 35 3.9%
Phe[F] 56 6.3%
Pro[P] 26 2.9%
Ser[S] 60 6.7%
Thr[T] 48 5.4%
Trp[W] 15 1.7%
Tyr[Y] 30 3.4%
Val[V] 56 6.3%
Total Length 890

Instability index
Instability index (II) 38.05
This classifies the protein as stable

Atomic composition
Carbon 4604
Hydrogen 7112
Nitrogen 1184
Oxygen 1329
Sulfur 42
Total number of atoms 14271
Formula = C4604H7112N1184O1329S42

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 127575 M-1 cm-1
assuming NO Cys residues appear as half cystines 127200 M-1 cm-1
assuming all Cys residues are reduced 127200 M-1 cm-1
assuming all pairs of Cys residues form cystines 127575 M-1 cm-1

Aliphatic index
Aliphatic index 93.98

Coding Region Translation Calculations
Codon Bias 0.113
Codon Adaptation Index 0.158
Frequency of Optimal Codons 0.474
Hydropathicity of Protein -0.055
Aromaticity Score 0.113