Peptide Database

Peptide NameEarly placenta insulin-like peptide A chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological modulation

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length25 amino acids

Chemical FormulaC116H182N34O38S4

DescriptionStandard

        SGRHRFDPFCCEVICDDGTSVKLCT
    

Molecular Weight2789.15 Da

Isoelectric Point (pI)5.41

Net Charge (pH 7.0)-1.49

Net Charge (pH 7.4) -1.81

Charge Density (pH 7.0) -0.0595

GRAVY Index-0.13

Hydrophobic Moment 0.45

Boman Index-0.07

Instability Index42.74

Aliphatic Index 54.40

Aromaticity 0.0800

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 250.00

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

Amino Acid Composition

TPSA 1161.55

LogP -13.93

H-bond Donors 45.0

H-bond Acceptors 42.0

Rotatable Bonds 89.0

Heavy Atoms 192.0

Ring Count 4.0

Amide Bonds 24.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0080708 VERIFIED: YES

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyEarly placenta insulin-like peptide

Tax ID9606

Structure & Mods

Configlinear peptide with reported disulfide constraint [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide10-15

Bio-Activity Profile

Function

Hormone Endocrine Growth regulation Development regulation Receptor modulation

Half-LifeMammalian: 1.9 hour; Yeast: >20 hour; E. coli: >10 hour

RECORD: Rec_0101898 VERIFIED: YES