MPH1/YIR002C 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] 49 4.9%
Arg[R] 50 5.0%
Asn[N] 64 6.4%
Asp[D] 68 6.8%
Cys[C] 17 1.7%
Gln[Q] 42 4.2%
Glu[E] 82 8.3%
Gly[G] 41 4.1%
His[H] 17 1.7%
Ile[I] 78 7.9%
Leu[L] 71 7.2%
Lys[K] 99 10.0%
Met[M] 21 2.1%
Phe[F] 46 4.6%
Pro[P] 33 3.3%
Ser[S] 62 6.2%
Thr[T] 56 5.6%
Trp[W] 4 0.4%
Tyr[Y] 30 3.0%
Val[V] 63 6.3%
Total Length 993

Instability index
Instability index (II) 39.41
This classifies the protein as stable

Atomic composition
Carbon 5041
Hydrogen 8048
Nitrogen 1386
Oxygen 1548
Sulfur 38
Total number of atoms 16061
Formula = C5041H8048N1386O1548S38

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 67700 M-1 cm-1
assuming NO Cys residues appear as half cystines 66700 M-1 cm-1
assuming all Cys residues are reduced 66700 M-1 cm-1
assuming all pairs of Cys residues form cystines 67700 M-1 cm-1

Aliphatic index
Aliphatic index 81.85

Coding Region Translation Calculations
Codon Bias 0.042
Codon Adaptation Index 0.152
Frequency of Optimal Codons 0.454
Hydropathicity of Protein -0.581
Aromaticity Score 0.081