Peptide Database

Peptide NameSmall cardioactive peptide A

Function Ontology

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length11 amino acids

Chemical FormulaC59H91N17O13S

DescriptionStandard

        ARPGYLAFPRM
    

Molecular Weight1278.52 Da

Isoelectric Point (pI)10.84

Net Charge (pH 7.0)1.79

Net Charge (pH 7.4) 1.61

Charge Density (pH 7.0) 0.1632

GRAVY Index-0.16

Hydrophobic Moment 0.49

Boman Index0.00

Instability Index29.54

Aliphatic Index 53.64

Aromaticity 0.1818

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 480.77

LogP -2.55

H-bond Donors 17.0

H-bond Acceptors 16.0

Rotatable Bonds 36.0

Heavy Atoms 90.0

Ring Count 4.0

Amide Bonds 10.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0010070 VERIFIED: NO

Provenance & Taxonomy

OrganismAplysia californica [Animal]

FamilySCP

Tax ID6500

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide Cardioexcitatory peptide

RECORD: Rec_0198921 VERIFIED: YES

Provenance & Taxonomy

Organismnot reported [other]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide

Paper数据库级溯源文献：Wang Y, Wang M, Yin S, et al. NeuroPep: a comprehensive resource of neuropeptides. Database (Oxford). 2015:bav038. PMID 25931458; Bin Y, Zhang W, Tang W, et al. Prediction of Neuropeptides from Sequence Information Using Ensemble Classifier and Hybrid Features. J Proteome Res. 2020;19(9):3732-3740. PMID 32786686. PMID25931458;32786686 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/25931458/

RECORD: Rec_0401942 VERIFIED: YES

Provenance & Taxonomy

OrganismAplysia californica [Animal]

FamilySmall cardioactive peptide

Tax ID6500

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide Neuromodulator

Targetcontractile response of the radula closer muscle

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