RIB1/YBL033C 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] 22 6.4%
Arg[R] 25 7.2%
Asn[N] 20 5.8%
Asp[D] 26 7.5%
Cys[C] 7 2.0%
Gln[Q] 14 4.1%
Glu[E] 22 6.4%
Gly[G] 31 9.0%
His[H] 11 3.2%
Ile[I] 20 5.8%
Leu[L] 35 10.1%
Lys[K] 16 4.6%
Met[M] 6 1.7%
Phe[F] 6 1.7%
Pro[P] 13 3.8%
Ser[S] 21 6.1%
Thr[T] 22 6.4%
Trp[W] 3 0.9%
Tyr[Y] 10 2.9%
Val[V] 15 4.3%
Total Length 345

Instability index
Instability index (II) 31.40
This classifies the protein as stable

Atomic composition
Carbon 1653
Hydrogen 2643
Nitrogen 495
Oxygen 529
Sulfur 13
Total number of atoms 5333
Formula = C1653H2643N495O529S13

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 31775 M-1 cm-1
assuming NO Cys residues appear as half cystines 31400 M-1 cm-1
assuming all Cys residues are reduced 31400 M-1 cm-1
assuming all pairs of Cys residues form cystines 31775 M-1 cm-1

Aliphatic index
Aliphatic index 81.16

Coding Region Translation Calculations
Codon Bias 0.042
Codon Adaptation Index 0.112
Frequency of Optimal Codons 0.417
Hydropathicity of Protein -0.600
Aromaticity Score 0.055