HOT1/YMR172W 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 5.6%
Arg[R] 36 5.0%
Asn[N] 85 11.8%
Asp[D] 42 5.8%
Cys[C] 2 0.3%
Gln[Q] 36 5.0%
Glu[E] 34 4.7%
Gly[G] 38 5.3%
His[H] 16 2.2%
Ile[I] 44 6.1%
Leu[L] 61 8.5%
Lys[K] 41 5.7%
Met[M] 19 2.6%
Phe[F] 15 2.1%
Pro[P] 31 4.3%
Ser[S] 81 11.3%
Thr[T] 60 8.3%
Trp[W] 3 0.4%
Tyr[Y] 13 1.8%
Val[V] 22 3.1%
Total Length 719

Instability index
Instability index (II) 48.29
This classifies the protein as unstable

Atomic composition
Carbon 3376
Hydrogen 5456
Nitrogen 1024
Oxygen 1147
Sulfur 21
Total number of atoms 11024
Formula = C3376H5456N1024O1147S21

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 35995 M-1 cm-1
assuming NO Cys residues appear as half cystines 35870 M-1 cm-1
assuming all Cys residues are reduced 35870 M-1 cm-1
assuming all pairs of Cys residues form cystines 35995 M-1 cm-1

Aliphatic index
Aliphatic index 71.39

Coding Region Translation Calculations
Codon Bias 0.003
Codon Adaptation Index 0.109
Frequency of Optimal Codons 0.407
Hydropathicity of Protein -0.802
Aromaticity Score 0.043