6xk0

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Albumin-dexamethasone complexAlbumin-dexamethasone complex

Structural highlights

6xk0 is a 1 chain structure with sequence from Equus caballus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.4Å
Ligands:, , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ALBU_HORSE

Publication Abstract from PubMed

Dexamethasone, a widely used corticosteroid, has recently been reported as the first drug to increase the survival chances of patients with severe COVID-19. Therapeutic agents, including dexamethasone, are mostly transported through the body by binding to serum albumin. Here, the first structure of serum albumin in complex with dexamethasone is reported. Dexamethasone binds to drug site 7, which is also the binding site for commonly used nonsteroidal anti-inflammatory drugs and testosterone, suggesting potentially problematic binding competition. This study bridges structural findings with an analysis of publicly available clinical data from Wuhan and suggests that an adjustment of the dexamethasone regimen should be further investigated as a strategy for patients affected by two major COVID-19 risk factors: low albumin levels and diabetes.

Molecular determinants of vascular transport of dexamethasone in COVID-19 therapy.,Shabalin IG, Czub MP, Majorek KA, Brzezinski D, Grabowski M, Cooper DR, Panasiuk M, Chruszcz M, Minor W IUCrJ. 2020 Sep 29;7(Pt 6). pii: S2052252520012944. doi:, 10.1107/S2052252520012944. PMID:33063792[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Shabalin IG, Czub MP, Majorek KA, Brzezinski D, Grabowski M, Cooper DR, Panasiuk M, Chruszcz M, Minor W. Molecular determinants of vascular transport of dexamethasone in COVID-19 therapy. IUCrJ. 2020 Sep 29;7(Pt 6). pii: S2052252520012944. doi:, 10.1107/S2052252520012944. PMID:33063792 doi:http://dx.doi.org/10.1107/S2052252520012944

6xk0, resolution 2.40Å

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OCA