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Updated: Oct 4, 2026

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
Published on: February 9, 2021
Are bacterial proteins part of the matrix of kidney stones?
S Daskalova1, S Kostadinova, D Gauster
1Department of Biochemistry and Microbiology, University of Plovdiv, 24 Tsar Assen Street, Plovdiv, 4 000, Bulgaria.
Abstract:
An extracellular protein, produced from Pseudomonas fluorescens strain D with molecular mass of 41.5 kDa was partially purified. Its first 12 amino acid sequence shows strong similarity to a sequence reported to belong to a protein isolated from a urate-calcium oxalate stone (Binnette & Binnette, Scan Microsc1994; 2: 233-239). A possible involvement of bacterial proteins in stone matrix is discussed.
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