SRL2/YLR082C 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] 15 3.8%
Arg[R] 22 5.6%
Asn[N] 31 7.9%
Asp[D] 25 6.4%
Cys[C] 3 0.8%
Gln[Q] 13 3.3%
Glu[E] 35 8.9%
Gly[G] 14 3.6%
His[H] 8 2.0%
Ile[I] 26 6.6%
Leu[L] 33 8.4%
Lys[K] 39 9.9%
Met[M] 8 2.0%
Phe[F] 14 3.6%
Pro[P] 10 2.6%
Ser[S] 31 7.9%
Thr[T] 28 7.1%
Trp[W] 4 1.0%
Tyr[Y] 8 2.0%
Val[V] 25 6.4%
Total Length 392

Instability index
Instability index (II) 41.13
This classifies the protein as unstable

Atomic composition
Carbon 1976
Hydrogen 3187
Nitrogen 561
Oxygen 624
Sulfur 11
Total number of atoms 6359
Formula = C1976H3187N561O624S11

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 34045 M-1 cm-1
assuming NO Cys residues appear as half cystines 33920 M-1 cm-1
assuming all Cys residues are reduced 33920 M-1 cm-1
assuming all pairs of Cys residues form cystines 34045 M-1 cm-1

Aliphatic index
Aliphatic index 81.02

Coding Region Translation Calculations
Codon Bias 0.022
Codon Adaptation Index 0.130
Frequency of Optimal Codons 0.437
Hydropathicity of Protein -0.726
Aromaticity Score 0.066