IRE1/YHR079C 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] 40 3.6%
Arg[R] 60 5.4%
Asn[N] 69 6.2%
Asp[D] 72 6.5%
Cys[C] 14 1.3%
Gln[Q] 33 3.0%
Glu[E] 72 6.5%
Gly[G] 54 4.8%
His[H] 25 2.2%
Ile[I] 80 7.2%
Leu[L] 124 11.1%
Lys[K] 72 6.5%
Met[M] 26 2.3%
Phe[F] 52 4.7%
Pro[P] 54 4.8%
Ser[S] 114 10.2%
Thr[T] 49 4.4%
Trp[W] 8 0.7%
Tyr[Y] 39 3.5%
Val[V] 58 5.2%
Total Length 1115

Instability index
Instability index (II) 47.15
This classifies the protein as unstable

Atomic composition
Carbon 5660
Hydrogen 8925
Nitrogen 1527
Oxygen 1708
Sulfur 40
Total number of atoms 17860
Formula = C5660H8925N1527O1708S40

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 102985 M-1 cm-1
assuming NO Cys residues appear as half cystines 102110 M-1 cm-1
assuming all Cys residues are reduced 102110 M-1 cm-1
assuming all pairs of Cys residues form cystines 102985 M-1 cm-1

Aliphatic index
Aliphatic index 90.03

Coding Region Translation Calculations
Codon Bias -0.009
Codon Adaptation Index 0.116
Frequency of Optimal Codons 0.399
Hydropathicity of Protein -0.364
Aromaticity Score 0.089