THI2/YBR240C 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] 19 4.2%
Arg[R] 25 5.6%
Asn[N] 28 6.2%
Asp[D] 26 5.8%
Cys[C] 19 4.2%
Gln[Q] 24 5.3%
Glu[E] 18 4.0%
Gly[G] 13 2.9%
His[H] 9 2.0%
Ile[I] 28 6.2%
Leu[L] 45 10.0%
Lys[K] 31 6.9%
Met[M] 12 2.7%
Phe[F] 18 4.0%
Pro[P] 17 3.8%
Ser[S] 43 9.6%
Thr[T] 30 6.7%
Trp[W] 9 2.0%
Tyr[Y] 14 3.1%
Val[V] 22 4.9%
Total Length 450

Instability index
Instability index (II) 45.93
This classifies the protein as unstable

Atomic composition
Carbon 2285
Hydrogen 3613
Nitrogen 635
Oxygen 678
Sulfur 31
Total number of atoms 7242
Formula = C2285H3613N635O678S31

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 71485 M-1 cm-1
assuming NO Cys residues appear as half cystines 70360 M-1 cm-1
assuming all Cys residues are reduced 70360 M-1 cm-1
assuming all pairs of Cys residues form cystines 71485 M-1 cm-1

Aliphatic index
Aliphatic index 81.67

Coding Region Translation Calculations
Codon Bias -0.002
Codon Adaptation Index 0.100
Frequency of Optimal Codons 0.410
Hydropathicity of Protein -0.373
Aromaticity Score 0.091