EMP46/YLR080W 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] 14 3.2%
Arg[R] 18 4.1%
Asn[N] 23 5.2%
Asp[D] 27 6.1%
Cys[C] 3 0.7%
Gln[Q] 19 4.3%
Glu[E] 28 6.3%
Gly[G] 29 6.5%
His[H] 3 0.7%
Ile[I] 28 6.3%
Leu[L] 54 12.2%
Lys[K] 48 10.8%
Met[M] 18 4.1%
Phe[F] 22 5.0%
Pro[P] 13 2.9%
Ser[S] 33 7.4%
Thr[T] 27 6.1%
Trp[W] 8 1.8%
Tyr[Y] 11 2.5%
Val[V] 18 4.1%
Total Length 444

Instability index
Instability index (II) 37.74
This classifies the protein as stable

Atomic composition
Carbon 2287
Hydrogen 3656
Nitrogen 602
Oxygen 668
Sulfur 21
Total number of atoms 7234
Formula = C2287H3656N602O668S21

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 60515 M-1 cm-1
assuming NO Cys residues appear as half cystines 60390 M-1 cm-1
assuming all Cys residues are reduced 60390 M-1 cm-1
assuming all pairs of Cys residues form cystines 60515 M-1 cm-1

Aliphatic index
Aliphatic index 86.94

Coding Region Translation Calculations
Codon Bias 0.028
Codon Adaptation Index 0.111
Frequency of Optimal Codons 0.423
Hydropathicity of Protein -0.408
Aromaticity Score 0.092