EXG1/YLR300W 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] 27 6.0%
Arg[R] 17 3.8%
Asn[N] 28 6.2%
Asp[D] 38 8.5%
Cys[C] 8 1.8%
Gln[Q] 19 4.2%
Glu[E] 27 6.0%
Gly[G] 31 6.9%
His[H] 11 2.5%
Ile[I] 25 5.6%
Leu[L] 41 9.2%
Lys[K] 17 3.8%
Met[M] 6 1.3%
Phe[F] 18 4.0%
Pro[P] 16 3.6%
Ser[S] 32 7.1%
Thr[T] 22 4.9%
Trp[W] 15 3.3%
Tyr[Y] 27 6.0%
Val[V] 23 5.1%
Total Length 448

Instability index
Instability index (II) 35.22
This classifies the protein as stable

Atomic composition
Carbon 2306
Hydrogen 3422
Nitrogen 600
Oxygen 707
Sulfur 14
Total number of atoms 7049
Formula = C2306H3422N600O707S14

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 123230 M-1 cm-1
assuming NO Cys residues appear as half cystines 122730 M-1 cm-1
assuming all Cys residues are reduced 122730 M-1 cm-1
assuming all pairs of Cys residues form cystines 123230 M-1 cm-1

Aliphatic index
Aliphatic index 78.37

Coding Region Translation Calculations
Codon Bias 0.422
Codon Adaptation Index 0.345
Frequency of Optimal Codons 0.658
Hydropathicity of Protein -0.452
Aromaticity Score 0.134