Peptide Database

Peptide NameCystatin-9 (Cystatin-like molecule)

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-negative

Enzyme modulation ▸ Enzyme inhibition ▸ Protease inhibition

Other / Curated residual function label ▸ Generic enzyme inhibition annotation

Toxicity / Safety ▸ Negative safety assay result ▸ Non-hemolytic

Standard StatusStandard

Sequence Length159 amino acids

Chemical FormulaC790H1246N226O232S16

DescriptionStandard

        MSSPQRRKAMPWALSLLLMGFQLLVTYAWCSEEEMGGNNKIVQDPMFLATVEFALNTFNVQSKEEHAYRLLRVLSSWREDSMDRKWRGKMVFSMNLQLRQTVCRKFEDDIDNCPFQESLELNNVRQGISFPQVHSCGCCMGCGVGTGAADKAIPRDKGK
    

Molecular Weight18134.76 Da

Isoelectric Point (pI)8.18

Net Charge (pH 7.0)1.63

Net Charge (pH 7.4) 1.17

Charge Density (pH 7.0) 0.0103

GRAVY Index-0.36

Hydrophobic Moment 0.70

Boman Index-0.05

Instability Index51.28

Aliphatic Index 70.50

Aromaticity 0.0881

Extinction Coeff. Reduced 24980.00

Extinction Coeff. Oxidized 25355.00

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

Amino Acid Composition

TPSA 7432.28

LogP -74.75

H-bond Donors 263.0

H-bond Acceptors 252.0

Rotatable Bonds 611.0

Heavy Atoms 1264.0

Ring Count 26.0

Amide Bonds 175.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0268093 VERIFIED: YES

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyCystatin

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Anti-Gram-negative Protease inhibitor Thiol protease inhibitor Enzyme inhibitory Non-hemolytic

TargetFrancisella tularensis