s mutans ua159 wild type strain (ATCC)
Structured Review

S Mutans Ua159 Wild Type Strain, supplied by ATCC, used in various techniques. Bioz Stars score: 95/100, based on 660 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 95 stars, based on 660 article reviews
Images
1) Product Images from "L-serine-O-sulfate alters cellular ultrastructure and mitigates the capacity of biofilm formation in Streptococcus mutans UA159 via interfering with glutamate racemase"
Article Title: L-serine-O-sulfate alters cellular ultrastructure and mitigates the capacity of biofilm formation in Streptococcus mutans UA159 via interfering with glutamate racemase
Journal: Current Research in Microbial Sciences
doi: 10.1016/j.crmicr.2025.100427
Figure Legend Snippet: Computational and experimental analysis of LSOS-MurI interaction. (a) Amino acid sequence alignment of S. mutans MurI and S. pyogenes MurI across 264 residues. Key pocket residues Ser11, Thr75, and Thr117 are highlighted in red boxes. Alignment color intensity reflects sequence similarity, with deeper purple indicating higher conservation. (b) Structural visualization of S. pyogenes MurI (PDB ID: 2OHV ) in complex with γ−2-naphthylmethyl- d -glutamate. Gray dashed lines represent hydrophobic interactions, yellow dashed lines indicate π-π stacking interactions, and blue solid lines denote hydrogen bonds interactions. (c) Docking interaction diagram of S. mutans MurI with LSOS. Yellow dashed lines indicate π-π stacking interactions, and blue solid lines represent hydrogen bond interactions. (d) Structural superposition of S. mutans MurI (blue) and S. pyogenes MurI (pink). γ−2-naphthylmethyl- d -glutamate is shown in yellow, and LSOS is shown in cyan. (e) Docking interaction diagram of S. mutans MurI with l -glutamate. Blue solid lines represent hydrogen bond interactions. (f) Docking interaction diagram of S. mutans MurI with d -glutamate. Blue solid lines represent hydrogen bond interactions. (g) Structural comparison of LSOS (right) with natural substrates l -glutamate (left) and d -glutamate (middle). (h) Circular dichroism spectra of MurI (6.25 μg/mL in 10 mM potassium phosphate, pH 7.8) after 2-hour pre-incubation with LSOS, using 5 mM l -glutamate as substrate. Based on standard CD principles, L/D-glutamate are expected to exhibit positive (L) and negative (D) ellipticity near 200–205 nm . LSOS, similar to L‑serine, is likely to show a positive band . Colored lines represent LSOS concentrations: green (0 mM), orange (1 mM), blue (2 mM), and red (5 mM). The red arrow indicates reduced ellipticity at 200–205 nm.
Techniques Used: Sequencing, Comparison, Circular Dichroism, Incubation
Figure Legend Snippet: LSOS impairs growth and induces cytoplasmic vacuolization in S. mutans UA159. (a) Growth curves of S. mutans UA159 under LSOS treatment ( n = 3). (b) Doubling time calculations from exponential growth phases. (c) Representative TEM images (× 59,000): top-left: untreated control; top-right: 2.5 mM LSOS (red stars indicate membrane blebs); bottom-left: 5.0 mM LSOS (arrows indicate cell lysis); bottom-right: penicillin control (0.04 μg/ml). Scale bars: 200 nm. (d) Violin plot of bleb-containing cells per field ( n = 10 images). * p -value compares 2.5 vs 5.0 mM groups.
Techniques Used: Control, Membrane, Lysis
Figure Legend Snippet: LSOS impairs biofilm formation and extracellular matrix organization in S. mutans UA159. (a) CLSM images (20 ×) of 24-h biofilms: Viable bacteria (green), α-glucans (red), β-glucans (blue). Scale bar: 100 μm. (b) COMSTAT 2 quantification of bio-volume (left axis) and average thickness (right axis). Data: mean ± SD ( n = 3). (c) Left: Crystal violet absorbance at OD595nm; Right: Estimation plot of mean differences. Data: mean ± SD ( n = 3). (d) SEM micrographs (500 ×): untreated (left) vs 2.5 mM LSOS-treated (right) biofilms. Scale bars: 50 μm.
Techniques Used: Bacteria

