URH1/YDR400W 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] 26 7.6%
Arg[R] 10 2.9%
Asn[N] 21 6.2%
Asp[D] 24 7.1%
Cys[C] 7 2.1%
Gln[Q] 6 1.8%
Glu[E] 18 5.3%
Gly[G] 24 7.1%
His[H] 8 2.4%
Ile[I] 30 8.8%
Leu[L] 29 8.5%
Lys[K] 21 6.2%
Met[M] 8 2.4%
Phe[F] 18 5.3%
Pro[P] 22 6.5%
Ser[S] 18 5.3%
Thr[T] 17 5.0%
Trp[W] 5 1.5%
Tyr[Y] 14 4.1%
Val[V] 14 4.1%
Total Length 340

Instability index
Instability index (II) 30.98
This classifies the protein as stable

Atomic composition
Carbon 1720
Hydrogen 2635
Nitrogen 439
Oxygen 501
Sulfur 15
Total number of atoms 5310
Formula = C1720H2635N439O501S15

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 48735 M-1 cm-1
assuming NO Cys residues appear as half cystines 48360 M-1 cm-1
assuming all Cys residues are reduced 48360 M-1 cm-1
assuming all pairs of Cys residues form cystines 48735 M-1 cm-1

Aliphatic index
Aliphatic index 87.26

Coding Region Translation Calculations
Codon Bias 0.049
Codon Adaptation Index 0.138
Frequency of Optimal Codons 0.440
Hydropathicity of Protein -0.159
Aromaticity Score 0.109