IRC7/YFR055W 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] 25 7.4%
Arg[R] 13 3.8%
Asn[N] 9 2.6%
Asp[D] 21 6.2%
Cys[C] 4 1.2%
Gln[Q] 6 1.8%
Glu[E] 20 5.9%
Gly[G] 36 10.6%
His[H] 9 2.6%
Ile[I] 18 5.3%
Leu[L] 44 12.9%
Lys[K] 21 6.2%
Met[M] 9 2.6%
Phe[F] 11 3.2%
Pro[P] 14 4.1%
Ser[S] 24 7.1%
Thr[T] 22 6.5%
Trp[W] 6 1.8%
Tyr[Y] 9 2.6%
Val[V] 19 5.6%
Total Length 340

Instability index
Instability index (II) 28.08
This classifies the protein as stable

Atomic composition
Carbon 1655
Hydrogen 2619
Nitrogen 439
Oxygen 493
Sulfur 13
Total number of atoms 5219
Formula = C1655H2619N439O493S13

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 46660 M-1 cm-1
assuming NO Cys residues appear as half cystines 46410 M-1 cm-1
assuming all Cys residues are reduced 46410 M-1 cm-1
assuming all pairs of Cys residues form cystines 46660 M-1 cm-1

Aliphatic index
Aliphatic index 94.68

Coding Region Translation Calculations
Codon Bias 0.096
Codon Adaptation Index 0.140
Frequency of Optimal Codons 0.440
Hydropathicity of Protein -0.067
Aromaticity Score 0.076