NMD3/YHR170W 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] 32 6.2%
Arg[R] 27 5.2%
Asn[N] 24 4.6%
Asp[D] 39 7.5%
Cys[C] 13 2.5%
Gln[Q] 27 5.2%
Glu[E] 38 7.3%
Gly[G] 19 3.7%
His[H] 14 2.7%
Ile[I] 35 6.8%
Leu[L] 47 9.1%
Lys[K] 31 6.0%
Met[M] 12 2.3%
Phe[F] 18 3.5%
Pro[P] 20 3.9%
Ser[S] 32 6.2%
Thr[T] 31 6.0%
Trp[W] 5 1.0%
Tyr[Y] 16 3.1%
Val[V] 38 7.3%
Total Length 518

Instability index
Instability index (II) 37.20
This classifies the protein as stable

Atomic composition
Carbon 2605
Hydrogen 4124
Nitrogen 714
Oxygen 803
Sulfur 25
Total number of atoms 8271
Formula = C2605H4124N714O803S25

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 52090 M-1 cm-1
assuming NO Cys residues appear as half cystines 51340 M-1 cm-1
assuming all Cys residues are reduced 51340 M-1 cm-1
assuming all pairs of Cys residues form cystines 52090 M-1 cm-1

Aliphatic index
Aliphatic index 89.19

Coding Region Translation Calculations
Codon Bias 0.272
Codon Adaptation Index 0.244
Frequency of Optimal Codons 0.575
Hydropathicity of Protein -0.364
Aromaticity Score 0.075