IMH1/YLR309C 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] 41 4.5%
Arg[R] 32 3.5%
Asn[N] 75 8.2%
Asp[D] 54 5.9%
Cys[C] 3 0.3%
Gln[Q] 43 4.7%
Glu[E] 130 14.3%
Gly[G] 16 1.8%
His[H] 11 1.2%
Ile[I] 44 4.8%
Leu[L] 119 13.1%
Lys[K] 132 14.5%
Met[M] 10 1.1%
Phe[F] 9 1.0%
Pro[P] 11 1.2%
Ser[S] 83 9.1%
Thr[T] 48 5.3%
Trp[W] 2 0.2%
Tyr[Y] 19 2.1%
Val[V] 29 3.2%
Total Length 911

Instability index
Instability index (II) 50.48
This classifies the protein as unstable

Atomic composition
Carbon 4538
Hydrogen 7533
Nitrogen 1281
Oxygen 1548
Sulfur 13
Total number of atoms 14913
Formula = C4538H7533N1281O1548S13

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 39435 M-1 cm-1
assuming NO Cys residues appear as half cystines 39310 M-1 cm-1
assuming all Cys residues are reduced 39310 M-1 cm-1
assuming all pairs of Cys residues form cystines 39435 M-1 cm-1

Aliphatic index
Aliphatic index 83.51

Coding Region Translation Calculations
Codon Bias 0.048
Codon Adaptation Index 0.153
Frequency of Optimal Codons 0.446
Hydropathicity of Protein -1.102
Aromaticity Score 0.033