Peptide Database

Peptide NameVasoactive intestinal peptide

Function Ontology

Cardiovascular

Cardiovascular ▸ Vascular tone modulation ▸ Vasoactive peptide

Cardiovascular ▸ Vascular tone modulation ▸ Vasodilatory activity

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length28 amino acids

Chemical FormulaC149H234N42O43S

DescriptionStandard

        HSDAIFTDNYSRFRKQMAVKKYLNSVLT
    

Molecular Weight3333.77 Da

Isoelectric Point (pI)9.82

Net Charge (pH 7.0)2.84

Net Charge (pH 7.4) 2.58

Charge Density (pH 7.0) 0.1016

GRAVY Index-0.58

Hydrophobic Moment 0.51

Boman Index-0.16

Instability Index28.34

Aliphatic Index 69.64

Aromaticity 0.1429

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 2980.00

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

Amino Acid Composition

TPSA 1425.04

LogP -14.30

H-bond Donors 51.0

H-bond Acceptors 48.0

Rotatable Bonds 112.0

Heavy Atoms 235.0

Ring Count 5.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0160402 VERIFIED: YES

Provenance & Taxonomy

OrganismAmia calva [Animal]

FamilyVasoactive intestinal peptide

Tax ID7924

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Hormone Endocrine Neuropeptide Neuromodulator Vasoactive Vasodilator Cardiovascular Metabolic regulation Physiological regulation

Half-LifeMammalian: 3.5 hour; Yeast: 10 min; E. coli: >10 hour

RECORD: Rec_0342703 VERIFIED: NO

Provenance & Taxonomy

OrganismOncorhynchus mykiss,Salmo gairdneri irideus [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone

RECORD: Rec_0382191 VERIFIED: YES

Provenance & Taxonomy

OrganismOncorhynchus mykiss [Animal]

FamilyVasoactive intestinal peptide

Tax ID8022

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Hormone Endocrine Neuropeptide Neuromodulator Vasoactive Vasodilator Cardiovascular Metabolic regulation Physiological regulation

Half-LifeMammalian: 3.5 hour; Yeast: 10 min; E. coli: >10 hour