QCR2/YPR191W 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] 35 9.5%
Arg[R] 16 4.3%
Asn[N] 18 4.9%
Asp[D] 25 6.8%
Cys[C] 1 0.3%
Gln[Q] 9 2.4%
Glu[E] 21 5.7%
Gly[G] 20 5.4%
His[H] 3 0.8%
Ile[I] 12 3.3%
Leu[L] 47 12.8%
Lys[K] 31 8.4%
Met[M] 1 0.3%
Phe[F] 18 4.9%
Pro[P] 12 3.3%
Ser[S] 32 8.7%
Thr[T] 19 5.2%
Trp[W] 0 0.0%
Tyr[Y] 15 4.1%
Val[V] 33 9.0%
Total Length 368

Instability index
Instability index (II) 28.56
This classifies the protein as stable

Atomic composition
Carbon 1823
Hydrogen 2908
Nitrogen 480
Oxygen 554
Sulfur 2
Total number of atoms 5767
Formula = C1823H2908N480O554S2

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 22350 M-1 cm-1
assuming NO Cys residues appear as half cystines 22350 M-1 cm-1
assuming all Cys residues are reduced 22350 M-1 cm-1
assuming all pairs of Cys residues form cystines 22350 M-1 cm-1

Aliphatic index
Aliphatic index 98.04

Coding Region Translation Calculations
Codon Bias 0.279
Codon Adaptation Index 0.227
Frequency of Optimal Codons 0.559
Hydropathicity of Protein -0.148
Aromaticity Score 0.090