ISDA

Deposition Date 2019-03-25

Release Date 2020-02-12

Last Version Date 2024-11-06

Entry Detail

PDB ID:

6OCN

Keywords:

HYDROLASE

Title:

Montbretin A analogue M06-MbA in complex with Human pancreatic alpha-amylase

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Komagataella pastoris

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.15 Å

R-Value Free:

0.11

R-Value Work:

0.09

R-Value Observed:

0.09

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Pancreatic alpha-amylase
Gene (Uniprot):AMY2A
Chain IDs:A
Chain Length:496
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P04746 Pfam ID:PF00128, PF02806 EC:3.2.1.1

Ligand Molecules

NAG

ZXY

Primary Citation

Synthesis of montbretin A analogues yields potent competitive inhibitors of human pancreatic alpha-amylase.

Tysoe, C.R, Caner, S, Calvert, M.B, Win-Mason, A, Brayer, G.D, Withers, S.G.Show

Chem Sci 10 11073 11077 (2019)

PMID: 32206255 DOI: 10.1039/c9sc02610j

Abstact

Simplified analogues of the potent human amylase inhibitor montbretin A were synthesised and shown to bind tightly, K I = 60 and 70 nM, with improved specificity over medically relevant glycosidases, making them promising candidates for controlling blood glucose. Crystallographic analysis confirmed similar binding modes and identified new active site interactions.

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Primary Citation of related structures