IRC6/YFR043C 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] 11 4.6%
Arg[R] 10 4.2%
Asn[N] 18 7.6%
Asp[D] 14 5.9%
Cys[C] 4 1.7%
Gln[Q] 13 5.5%
Glu[E] 25 10.5%
Gly[G] 4 1.7%
His[H] 8 3.4%
Ile[I] 22 9.3%
Leu[L] 21 8.9%
Lys[K] 12 5.1%
Met[M] 5 2.1%
Phe[F] 10 4.2%
Pro[P] 10 4.2%
Ser[S] 12 5.1%
Thr[T] 11 4.6%
Trp[W] 5 2.1%
Tyr[Y] 7 3.0%
Val[V] 15 6.3%
Total Length 237

Instability index
Instability index (II) 49.22
This classifies the protein as unstable

Atomic composition
Carbon 1247
Hydrogen 1929
Nitrogen 331
Oxygen 377
Sulfur 9
Total number of atoms 3893
Formula = C1247H1929N331O377S9

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 38180 M-1 cm-1
assuming NO Cys residues appear as half cystines 37930 M-1 cm-1
assuming all Cys residues are reduced 37930 M-1 cm-1
assuming all pairs of Cys residues form cystines 38180 M-1 cm-1

Aliphatic index
Aliphatic index 93.76

Coding Region Translation Calculations
Codon Bias 0.019
Codon Adaptation Index 0.133
Frequency of Optimal Codons 0.445
Hydropathicity of Protein -0.430
Aromaticity Score 0.093