NIC96/YFR002W 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] 45 5.4%
Arg[R] 38 4.5%
Asn[N] 67 8.0%
Asp[D] 49 5.8%
Cys[C] 5 0.6%
Gln[Q] 33 3.9%
Glu[E] 59 7.0%
Gly[G] 32 3.8%
His[H] 15 1.8%
Ile[I] 69 8.2%
Leu[L] 108 12.9%
Lys[K] 65 7.7%
Met[M] 15 1.8%
Phe[F] 30 3.6%
Pro[P] 23 2.7%
Ser[S] 72 8.6%
Thr[T] 36 4.3%
Trp[W] 8 1.0%
Tyr[Y] 34 4.1%
Val[V] 36 4.3%
Total Length 839

Instability index
Instability index (II) 45.18
This classifies the protein as unstable

Atomic composition
Carbon 4302
Hydrogen 6848
Nitrogen 1156
Oxygen 1298
Sulfur 20
Total number of atoms 13624
Formula = C4302H6848N1156O1298S20

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 94910 M-1 cm-1
assuming NO Cys residues appear as half cystines 94660 M-1 cm-1
assuming all Cys residues are reduced 94660 M-1 cm-1
assuming all pairs of Cys residues form cystines 94910 M-1 cm-1

Aliphatic index
Aliphatic index 100.08

Coding Region Translation Calculations
Codon Bias 0.090
Codon Adaptation Index 0.155
Frequency of Optimal Codons 0.462
Hydropathicity of Protein -0.365
Aromaticity Score 0.086