Peptide Database

Peptide NameTetrapeptide

Function Ontology

Therapeutic / Biomedical activity ▸ Dermatology / Cosmetic bioactivity ▸ Skin aging modulation ▸ Anti-aging

Standard StatusStandard

Sequence Length4 amino acids

Chemical FormulaC22H40N6O7

DescriptionStandard

        PKEK
    

Molecular Weight500.59 Da

Isoelectric Point (pI)9.01

Net Charge (pH 7.0)0.96

Net Charge (pH 7.4) 0.90

Charge Density (pH 7.0) 0.2398

GRAVY Index-3.23

Hydrophobic Moment 0.08

Boman Index-0.91

Instability Index7.50

Aliphatic Index 0.00

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 225.97

LogP -1.60

H-bond Donors 8.0

H-bond Acceptors 8.0

Rotatable Bonds 18.0

Heavy Atoms 35.0

Ring Count 1.0

Amide Bonds 3.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0217113 VERIFIED: NO

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyTetrapeptide

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Anti-aging

TargetHuman cadaver (Ex vivo)

RECORD: Rec_0254317 VERIFIED: NO

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyTetrapeptide

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Anti-aging

TargetHuman cadaver skin (Ex vivo)

RECORD: Rec_0301730 VERIFIED: NO

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyTetrapeptide

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Anti-aging

Targetnot specified (In vitro)