HMLALPHA1/YCL066W 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] 12 6.9%
Arg[R] 9 5.1%
Asn[N] 12 6.9%
Asp[D] 5 2.9%
Cys[C] 1 0.6%
Gln[Q] 10 5.7%
Glu[E] 7 4.0%
Gly[G] 8 4.6%
His[H] 5 2.9%
Ile[I] 11 6.3%
Leu[L] 11 6.3%
Lys[K] 18 10.3%
Met[M] 3 1.7%
Phe[F] 14 8.0%
Pro[P] 6 3.4%
Ser[S] 17 9.7%
Thr[T] 5 2.9%
Trp[W] 4 2.3%
Tyr[Y] 8 4.6%
Val[V] 9 5.1%
Total Length 175

Instability index
Instability index (II) 31.98
This classifies the protein as stable

Atomic composition
Carbon 935
Hydrogen 1426
Nitrogen 256
Oxygen 252
Sulfur 4
Total number of atoms 2873
Formula = C935H1426N256O252S4

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 33920 M-1 cm-1
assuming NO Cys residues appear as half cystines 33920 M-1 cm-1
assuming all Cys residues are reduced 33920 M-1 cm-1
assuming all pairs of Cys residues form cystines 33920 M-1 cm-1

Aliphatic index
Aliphatic index 70.80

Coding Region Translation Calculations
Codon Bias -0.008
Codon Adaptation Index 0.112
Frequency of Optimal Codons 0.411
Hydropathicity of Protein -0.523
Aromaticity Score 0.149