Peptide Database

Peptide NameRat α1- proteinase inhibitor

Function Ontology

Protelytic activities regulating peptide

Standard StatusStandard

Sequence Length59 amino acids

Chemical FormulaC277H451N85O88S3

DescriptionStandard

        PSSSLHLHRRITHHRRLGCFRSSGSLLNNAMKGGVDDEITLSAYITMALLESSLPDTDP
    

Molecular Weight6476.26 Da

Isoelectric Point (pI)7.44

Net Charge (pH 7.0)0.31

Net Charge (pH 7.4) 0.02

Charge Density (pH 7.0) 0.0052

GRAVY Index-0.31

Hydrophobic Moment 0.53

Boman Index-0.04

Instability Index59.18

Aliphatic Index 89.32

Aromaticity 0.0339

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 2762.99

LogP -33.48

H-bond Donors 101.0

H-bond Acceptors 95.0

Rotatable Bonds 214.0

Heavy Atoms 453.0

Ring Count 9.0

Amide Bonds 60.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0351102 VERIFIED: YES

Provenance & Taxonomy

OrganismRattus norvegicus [Animal]

Tax ID10116

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-TermNone

C-TermNone

Other ModsGlycosylation

Bio-Activity Profile

Function

Protelytic activities regulating peptide

Targetproteolytic attack by leukocyte elastase

MethodRadioimmunoassay

Half-LifeWistar rats, in vivo; 10200 s

RECORD: Rec_0362433 VERIFIED: YES

Provenance & Taxonomy

OrganismRattus norvegicus [Animal]

Tax ID10116

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-TermNone

C-TermNone

Bio-Activity Profile

Function

Protelytic activities regulating peptide

Targetproteolytic attack by leukocyte elastase

MethodRadioimmunoassay

Half-LifeWistar rats, in vivo; 1800 s