YDR018C 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] 20 5.1%
Arg[R] 17 4.3%
Asn[N] 25 6.3%
Asp[D] 13 3.3%
Cys[C] 7 1.8%
Gln[Q] 17 4.3%
Glu[E] 16 4.0%
Gly[G] 19 4.8%
His[H] 8 2.0%
Ile[I] 28 7.1%
Leu[L] 48 12.1%
Lys[K] 33 8.3%
Met[M] 9 2.3%
Phe[F] 28 7.1%
Pro[P] 14 3.5%
Ser[S] 27 6.8%
Thr[T] 19 4.8%
Trp[W] 7 1.8%
Tyr[Y] 19 4.8%
Val[V] 22 5.6%
Total Length 396

Instability index
Instability index (II) 26.51
This classifies the protein as stable

Atomic composition
Carbon 2122
Hydrogen 3287
Nitrogen 545
Oxygen 562
Sulfur 16
Total number of atoms 6532
Formula = C2122H3287N545O562S16

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 67185 M-1 cm-1
assuming NO Cys residues appear as half cystines 66810 M-1 cm-1
assuming all Cys residues are reduced 66810 M-1 cm-1
assuming all pairs of Cys residues form cystines 67185 M-1 cm-1

Aliphatic index
Aliphatic index 96.01

Coding Region Translation Calculations
Codon Bias 0.066
Codon Adaptation Index 0.139
Frequency of Optimal Codons 0.447
Hydropathicity of Protein -0.064
Aromaticity Score 0.136