Peptide Database

Peptide NameCrystal structure of glucagon analog with selenomethionine substitutions at position 1 and 27 in space group I41 at 1.42 A resolution

Function Ontology

Hormonal / Endocrine

Standard StatusStandard

Sequence Length29 amino acids

Chemical FormulaC152H169N41O20S2

DescriptionPDB structure; X-ray @1.42Å

        MSQGTFTSDYSKYLDSRRAQDFVQWLMNT
    

Molecular Weight3476.80 Da

Isoelectric Point (pI)6.76

Net Charge (pH 7.0)-0.00

Net Charge (pH 7.4) -0.01

Charge Density (pH 7.0) -0.0001

GRAVY Index-0.81

Hydrophobic Moment 0.18

Boman Index-0.14

Instability Index71.18

Aliphatic Index 40.34

Aromaticity 0.1724

Extinction Coeff. Reduced 8480.00

Extinction Coeff. Oxidized 8480.00

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

Amino Acid Composition

TPSA 1272.73

LogP 1.93

H-bond Donors 27.0

H-bond Acceptors 51.0

Rotatable Bonds 60.0

Heavy Atoms 217.0

Ring Count 6.0

Amide Bonds 59.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0431308 VERIFIED: YES

Provenance & Taxonomy

OrganismHomo sapiens [other]

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-TermNone

C-TermNone

Bio-Activity Profile

Function

Hormonal / Endocrine

MethodX-ray