MED2/YDL005C 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] 18 4.2%
Arg[R] 8 1.9%
Asn[N] 90 20.9%
Asp[D] 32 7.4%
Cys[C] 1 0.2%
Gln[Q] 26 6.0%
Glu[E] 34 7.9%
Gly[G] 24 5.6%
His[H] 2 0.5%
Ile[I] 13 3.0%
Leu[L] 31 7.2%
Lys[K] 27 6.3%
Met[M] 9 2.1%
Phe[F] 13 3.0%
Pro[P] 9 2.1%
Ser[S] 42 9.7%
Thr[T] 30 7.0%
Trp[W] 1 0.2%
Tyr[Y] 6 1.4%
Val[V] 15 3.5%
Total Length 431

Instability index
Instability index (II) 41.48
This classifies the protein as unstable

Atomic composition
Carbon 1972
Hydrogen 3113
Nitrogen 603
Oxygen 758
Sulfur 10
Total number of atoms 6456
Formula = C1972H3113N603O758S10

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 14440 M-1 cm-1
assuming NO Cys residues appear as half cystines 14440 M-1 cm-1
assuming all Cys residues are reduced 14440 M-1 cm-1
assuming all pairs of Cys residues form cystines 14440 M-1 cm-1

Aliphatic index
Aliphatic index 54.08

Coding Region Translation Calculations
Codon Bias 0.100
Codon Adaptation Index 0.168
Frequency of Optimal Codons 0.485
Hydropathicity of Protein -1.263
Aromaticity Score 0.046