EMC2/YJR088C 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] 19 6.5%
Arg[R] 9 3.1%
Asn[N] 20 6.8%
Asp[D] 13 4.5%
Cys[C] 4 1.4%
Gln[Q] 11 3.8%
Glu[E] 27 9.2%
Gly[G] 9 3.1%
His[H] 0 0.0%
Ile[I] 17 5.8%
Leu[L] 44 15.1%
Lys[K] 29 9.9%
Met[M] 9 3.1%
Phe[F] 10 3.4%
Pro[P] 3 1.0%
Ser[S] 17 5.8%
Thr[T] 16 5.5%
Trp[W] 3 1.0%
Tyr[Y] 17 5.8%
Val[V] 15 5.1%
Total Length 292

Instability index
Instability index (II) 35.11
This classifies the protein as stable

Atomic composition
Carbon 1529
Hydrogen 2440
Nitrogen 382
Oxygen 454
Sulfur 13
Total number of atoms 4818
Formula = C1529H2440N382O454S13

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 42080 M-1 cm-1
assuming NO Cys residues appear as half cystines 41830 M-1 cm-1
assuming all Cys residues are reduced 41830 M-1 cm-1
assuming all pairs of Cys residues form cystines 42080 M-1 cm-1

Aliphatic index
Aliphatic index 102.88

Coding Region Translation Calculations
Codon Bias 0.160
Codon Adaptation Index 0.171
Frequency of Optimal Codons 0.504
Hydropathicity of Protein -0.220
Aromaticity Score 0.103