HTB1/YDR224C 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] 18 13.7%
Arg[R] 6 4.6%
Asn[N] 3 2.3%
Asp[D] 3 2.3%
Cys[C] 0 0.0%
Gln[Q] 4 3.1%
Glu[E] 8 6.1%
Gly[G] 4 3.1%
His[H] 2 1.5%
Ile[I] 8 6.1%
Leu[L] 6 4.6%
Lys[K] 20 15.3%
Met[M] 2 1.5%
Phe[F] 2 1.5%
Pro[P] 5 3.8%
Ser[S] 18 13.7%
Thr[T] 12 9.2%
Trp[W] 0 0.0%
Tyr[Y] 5 3.8%
Val[V] 5 3.8%
Total Length 131

Instability index
Instability index (II) 37.24
This classifies the protein as stable

Atomic composition
Carbon 623
Hydrogen 1040
Nitrogen 180
Oxygen 196
Sulfur 2
Total number of atoms 2041
Formula = C623H1040N180O196S2

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 7450 M-1 cm-1

Aliphatic index
Aliphatic index 66.49

Coding Region Translation Calculations
Codon Bias 0.714
Codon Adaptation Index 0.658
Frequency of Optimal Codons 0.829
Hydropathicity of Protein -0.700
Aromaticity Score 0.053