Peptide Database

Peptide NameProlactin-inhibiting factor PIF-2

Function Ontology

Cardiovascular ▸ Vascular tone modulation ▸ Vasoactive peptide

Cardiovascular ▸ Vascular tone modulation ▸ Vasoconstrictor activity

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Regulatory peptide ▸ Biological modulation

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length39 amino acids

Chemical FormulaC172H280N48O56

DescriptionStandard

        ASDRSNATLLDGPSGALLLRLVQLAGAPEPAEPAQPGVY
    

Molecular Weight3916.35 Da

Isoelectric Point (pI)4.32

Net Charge (pH 7.0)-2.20

Net Charge (pH 7.4) -2.39

Charge Density (pH 7.0) -0.0563

GRAVY Index0.00

Hydrophobic Moment 0.44

Boman Index0.14

Instability Index56.75

Aliphatic Index 102.82

Aromaticity 0.0256

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1490.00

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

Amino Acid Composition

TPSA 1628.59

LogP -18.43

H-bond Donors 53.0

H-bond Acceptors 54.0

Rotatable Bonds 120.0

Heavy Atoms 276.0

Ring Count 6.0

Amide Bonds 41.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0008667 VERIFIED: NO

Provenance & Taxonomy

OrganismSus scrofa [Animal] [Animal]; Bos taurus [Animal] [Animal]; Ovis aries [Animal]

FamilyVasopressin

Tax ID9823;9913;9940

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone

RECORD: Rec_0035837 VERIFIED: YES

Provenance & Taxonomy

OrganismSus scrofa [Animal]

FamilyVasopressin/oxytocin

Tax ID9823

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neurohypophyseal hormone Neuropeptide

RECORD: Rec_0058643 VERIFIED: YES

Provenance & Taxonomy

OrganismSus scrofa [Animal]

FamilyCopeptin

Tax ID9823

Structure & Mods

Configlinear peptide [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

Other Mods6:N-linked (GlcNAc...) asparagine

Bio-Activity Profile

Function

Hormone Endocrine Neuropeptide Neuromodulator Vasoactive Vasoconstrictor Metabolic regulation Physiological regulation Receptor modulation

Targetvasopressin receptors (V1bR/AVPR1B, V1aR/AVPR1A, and V2R/AVPR2) (By similarity)

Half-LifeMammalian: 4.4 hour; Yeast: >20 hour; E. coli: >10 hour

RECORD: Rec_0241084 VERIFIED: YES

Provenance & Taxonomy

OrganismSus scrofa [Animal]

FamilyCopeptin

Tax ID9823

Structure & Mods

Configlinear peptide [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

Other Mods6:N-linked (GlcNAc...) asparagine

Bio-Activity Profile

Function

Hormone Endocrine Neuropeptide Neuromodulator Vasoactive Vasoconstrictor Metabolic regulation Physiological regulation Receptor modulation

Half-LifeMammalian: 4.4 hour; Yeast: >20 hour; E. coli: >10 hour