Protein sequence information

Protein sequence information and derived properties: aminoacid composition, molecular weight, molar absorption coefficient, isoelectric point and charge at a given pH.

Parameters

Fill in the data to analyse, then run the computation.

Sequence :

Select subsequence from position

(both included) for computation

Aminoacid composition

Molecular weight

Molar absorption coefficient

Protein isoelectric point with pK values from

Charge at pH =

Show sequence as 3 letters aminoacid code

Show polar, non-polar and charged nature of aminoacids

Show polar, non-polar, Hydrofobic, and negatively or positively charged nature of aminoacids

Description

Protein sequence information tool

Notes

Non-coding characters will be removed by default.
NC-UIBMB codes are used as a reference.

Computation

Molecular Weight:

MW =(A*71.07)+(R*156.18)+(nN*114.08)+(nD*115.08)+(nC*103.10)
+(nQ*128.13)+(nE*129.11)+(nG*57.05)+(nH*137.14)+(nI*113.15)+
+(nL*113.15)+(nK*128.17)+(nM*131.19)+(nF*147.17)+(nP*97.11)+
+(nS*87.07)+(nT*101.10)+(nW*186.20)+(nY*163.17)+(nV*99.13)+18.02

Molar absorption coefficient: Pace et al., 1995

Isoelectric point estimation: Tabb D., 2003

Type of aminoacid (1)

Polar: SCTNQHYW
Non-Polar: GAPVILFM
Charged: DEKR

Type of aminoacid (2)

Small non-polar: SCTNQHYW (Yellow)
Hydrophobic: CVILPFYMW (Green)
Polar: DQH (Magenta)
Negatively charged: NE (Red)
Positively charged: KR (Blue)

Text taken from biophp.org.