ISDA

Deposition Date 2011-10-25

Release Date 2012-04-11

Last Version Date 2025-03-26

Entry Detail

PDB ID:

3UBU

Keywords:

TOXIN

Title:

Crystal structure of agkisacucetin, a GpIb-binding snaclec (snake C-type lectin) that inhibits platelet

Biological Source:

Source Organism:

Deinagkistrodon acutus (Taxon ID: 36307)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.91 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Agglucetin subunit alpha-1
Chain IDs:A
Chain Length:131
Number of Molecules:1
Biological Source:Deinagkistrodon acutus

UniProt ID:Q8JIV9 Pfam ID:PF00059

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Agglucetin subunit beta-2
Chain IDs:B
Chain Length:126
Number of Molecules:1
Biological Source:Deinagkistrodon acutus

UniProt ID:Q8AYA3 Pfam ID:PF00059

Primary Citation

Crystal structure of agkisacucetin, a Gpib-binding snake C-type lectin that inhibits platelet adhesion and aggregation.

Gao, Y, Ge, H, Chen, H, Li, H, Liu, Y, Chen, L, Li, X, Liu, J, Niu, L, Teng, M.Show

Proteins ? ? ? (2012)

PMID: 22447656 DOI: 10.1002/prot.24060

Abstact

Agkisacucetin is a snake C-type lectin isolated from the venom of Agkistrodon acutus (A. acutus). It binds specifically to the platelet glycoprotein (GP) Ib and prevents the von Willebrand factor (VWF) accessing it. We determined the crystal structure of agkisacucetin to 1.9Å resolution. The structure of agkisacucetin has an (αβ) fold similar to another GPIb-binding protein, flavocetin-A, but lacks the C-terminal cysteine in the β-subunit, does not form (βα)(4) tetramers, and does not cluster GPIbs, like flavocetin-A.

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Primary Citation of related structures