ALD4/YOR374W 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] 43 8.3%
Arg[R] 18 3.5%
Asn[N] 27 5.2%
Asp[D] 26 5.0%
Cys[C] 5 1.0%
Gln[Q] 16 3.1%
Glu[E] 33 6.4%
Gly[G] 45 8.7%
His[H] 8 1.5%
Ile[I] 43 8.3%
Leu[L] 36 6.9%
Lys[K] 38 7.3%
Met[M] 8 1.5%
Phe[F] 23 4.4%
Pro[P] 21 4.0%
Ser[S] 37 7.1%
Thr[T] 30 5.8%
Trp[W] 5 1.0%
Tyr[Y] 18 3.5%
Val[V] 39 7.5%
Total Length 519

Instability index
Instability index (II) 31.42
This classifies the protein as stable

Atomic composition
Carbon 2544
Hydrogen 4009
Nitrogen 675
Oxygen 766
Sulfur 13
Total number of atoms 8007
Formula = C2544H4009N675O766S13

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 54570 M-1 cm-1
assuming NO Cys residues appear as half cystines 54320 M-1 cm-1
assuming all Cys residues are reduced 54320 M-1 cm-1
assuming all pairs of Cys residues form cystines 54570 M-1 cm-1

Aliphatic index
Aliphatic index 89.44

Coding Region Translation Calculations
Codon Bias 0.368
Codon Adaptation Index 0.284
Frequency of Optimal Codons 0.628
Hydropathicity of Protein -0.151
Aromaticity Score 0.089