GPI19/YDR437W 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] 5 3.6%
Arg[R] 2 1.4%
Asn[N] 3 2.1%
Asp[D] 11 7.9%
Cys[C] 2 1.4%
Gln[Q] 5 3.6%
Glu[E] 6 4.3%
Gly[G] 6 4.3%
His[H] 1 0.7%
Ile[I] 13 9.3%
Leu[L] 20 14.3%
Lys[K] 5 3.6%
Met[M] 7 5.0%
Phe[F] 5 3.6%
Pro[P] 6 4.3%
Ser[S] 11 7.9%
Thr[T] 14 10.0%
Trp[W] 4 2.9%
Tyr[Y] 9 6.4%
Val[V] 5 3.6%
Total Length 140

Instability index
Instability index (II) 48.14
This classifies the protein as unstable

Atomic composition
Carbon 739
Hydrogen 1133
Nitrogen 165
Oxygen 217
Sulfur 9
Total number of atoms 2263
Formula = C739H1133N165O217S9

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 35535 M-1 cm-1
assuming NO Cys residues appear as half cystines 35410 M-1 cm-1
assuming all Cys residues are reduced 35410 M-1 cm-1
assuming all pairs of Cys residues form cystines 35535 M-1 cm-1

Aliphatic index
Aliphatic index 105.86

Coding Region Translation Calculations
Codon Bias -0.017
Codon Adaptation Index 0.101
Frequency of Optimal Codons 0.403
Hydropathicity of Protein 0.226
Aromaticity Score 0.129