Peptide Database

Peptide NameOpiorphin

Function Ontology

Enzyme modulation ▸ Enzyme inhibition ▸ Peptide Inhibitor

Other / Curated residual function label ▸ Generic enzyme inhibition annotation

Standard StatusStandard

Sequence Length5 amino acids

Chemical FormulaC29H48N12O8

DescriptionStandard

        QRFSR
    

Molecular Weight692.77 Da

Isoelectric Point (pI)12.00

Net Charge (pH 7.0)1.76

Net Charge (pH 7.4) 1.56

Charge Density (pH 7.0) 0.3520

GRAVY Index-2.10

Hydrophobic Moment 1.13

Boman Index-0.98

Instability Index46.52

Aliphatic Index 0.00

Aromaticity 0.2000

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 366.84

LogP -4.64

H-bond Donors 14.0

H-bond Acceptors 10.0

Rotatable Bonds 23.0

Heavy Atoms 49.0

Ring Count 1.0

Amide Bonds 5.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0017421 VERIFIED: YES

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Enzyme inhibitory Peptide Inhibitor

TargetBK2

Activity29 μM

MethodIC50

RECORD: Rec_0426294 VERIFIED: NO