ELF1/YKL160W 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] 3 2.1%
Arg[R] 8 5.5%
Asn[N] 6 4.1%
Asp[D] 21 14.5%
Cys[C] 5 3.4%
Gln[Q] 7 4.8%
Glu[E] 13 9.0%
Gly[G] 11 7.6%
His[H] 1 0.7%
Ile[I] 5 3.4%
Leu[L] 7 4.8%
Lys[K] 13 9.0%
Met[M] 1 0.7%
Phe[F] 4 2.8%
Pro[P] 2 1.4%
Ser[S] 18 12.4%
Thr[T] 8 5.5%
Trp[W] 1 0.7%
Tyr[Y] 2 1.4%
Val[V] 9 6.2%
Total Length 145

Instability index
Instability index (II) 40.92
This classifies the protein as unstable

Atomic composition
Carbon 669
Hydrogen 1068
Nitrogen 198
Oxygen 255
Sulfur 6
Total number of atoms 2196
Formula = C669H1068N198O255S6

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 8730 M-1 cm-1
assuming NO Cys residues appear as half cystines 8480 M-1 cm-1
assuming all Cys residues are reduced 8480 M-1 cm-1
assuming all pairs of Cys residues form cystines 8730 M-1 cm-1

Aliphatic index
Aliphatic index 52.34

Coding Region Translation Calculations
Codon Bias -0.077
Codon Adaptation Index 0.130
Frequency of Optimal Codons 0.378
Hydropathicity of Protein -1.156
Aromaticity Score 0.048