Peptide Database

Peptide NameCystatin-S (Cystatin-4), (Cystatin-SA-III), (Salivary acidic protein 1)

Function Ontology

Antimicrobial

Standard StatusStandard

Sequence Length141 amino acids

Chemical FormulaC715H1112N196O219S8

DescriptionStandard

        MARPLCTLLLLMATLAGALASSSKEENRIIPGGIYDADLNDEWVQRALHFAISEYNKATEDEYYRRPLQVLRAREQTFGGVNYFFDVEVGRTICTKSQPNLDTCAFHEQPELQKKQLCSFEIYEVPWEDRMSLVNSRCQEA
    

Molecular Weight16214.18 Da

Isoelectric Point (pI)4.95

Net Charge (pH 7.0)-6.34

Net Charge (pH 7.4) -6.77

Charge Density (pH 7.0) -0.0450

GRAVY Index-0.40

Hydrophobic Moment 0.72

Boman Index-0.05

Instability Index56.02

Aliphatic Index 80.99

Aromaticity 0.0993

Extinction Coeff. Reduced 19940.00

Extinction Coeff. Oxidized 20190.00

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

Amino Acid Composition

TPSA 6734.01

LogP -63.98

H-bond Donors 236.0

H-bond Acceptors 223.0

Rotatable Bonds 537.0

Heavy Atoms 1138.0

Ring Count 24.0

Amide Bonds 154.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0066709 VERIFIED: NO

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyCystatin

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial