Peptide Database

Peptide NameProtamine B

Function Ontology

Binding / Molecular interaction ▸ Binding activity

Standard StatusStandard

Sequence Length27 amino acids

Chemical FormulaC143H273N87O31

DescriptionStandard

        ARRRRRSSRPQRRRRRRRHGRRRRGRR
    

Molecular Weight3707.26 Da

Isoelectric Point (pI)12.00

Net Charge (pH 7.0)18.88

Net Charge (pH 7.4) 18.64

Charge Density (pH 7.0) 0.6994

GRAVY Index-3.50

Hydrophobic Moment 0.48

Boman Index-1.78

Instability Index351.59

Aliphatic Index 3.70

Aromaticity 0.0000

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

The radar chart summarizes major physicochemical dimensions for quick comparison, while exact numerical values remain listed on the left.

Amino Acid Composition

TPSA 2099.46

LogP -30.99

H-bond Donors 88.0

H-bond Acceptors 51.0

Rotatable Bonds 135.0

Heavy Atoms 261.0

Ring Count 2.0

Amide Bonds 27.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0192865 VERIFIED: NO

Provenance & Taxonomy

OrganismAcipenser guldenstadti [Animal]; Acipenser stellatus [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

DNA-binding