Peptide Database

Peptide NameProline-rich peptide SP-A

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length56 amino acids

Chemical FormulaC261H394N80O84

DescriptionStandard

        RSPFFDLEDANSNSAEKFLRPPPGGGPPRPPPPEESQGEGHQKRPRPPGDGPEQGP
    

Molecular Weight5996.41 Da

Isoelectric Point (pI)5.19

Net Charge (pH 7.0)-2.13

Net Charge (pH 7.4) -2.40

Charge Density (pH 7.0) -0.0381

GRAVY Index-1.67

Hydrophobic Moment 0.61

Boman Index-0.28

Instability Index104.40

Aliphatic Index 17.50

Aromaticity 0.0536

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 2554.26

LogP -32.76

H-bond Donors 78.0

H-bond Acceptors 83.0

Rotatable Bonds 177.0

Heavy Atoms 425.0

Ring Count 19.0

Amide Bonds 60.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0274223 VERIFIED: YES

Provenance & Taxonomy

OrganismSus scrofa [Animal]

FamilyProline-rich peptide SP

Tax ID9823

Structure & Mods

Configlinear peptide [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

Other Mods12:Phosphoserine; 14:Phosphoserine

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 1 hour; Yeast: 2 min; E. coli: 2 min