Understanding the regulation of Group B Streptococcal virulence factors

L Rajagopal - Future microbiology, 2009 - Taylor & Francis
Bacterial infections remain a significant threat to the health of newborns and adults. Group B
Streptococci (GBS) are Gram-positive bacteria that are common asymptomatic colonizers of …

Hyaluronidases, a group of glycosidases: Current and future perspectives

NS El-Safory, AE Fazary, CK Lee - Carbohydrate polymers, 2010 - Elsevier
Given the constant synthesis and degradation of hyaluronan (hyaluronic acid, HA) in tissues,
it is remarkable that the human body maintains precise levels of hyaluronan as tightly as it …

A halotolerant hyaluronidase from newly isolated Brevibacterium halotolerans DC1: Purification and characterization

SP Patil, LP Shirsath, BL Chaudhari - International Journal of Biological …, 2021 - Elsevier
An enzyme hyaluronidase (hyase) producing halotolerant bacterium was isolated from
dental caries and identified as Brevibacterium halotolerans DC1. Higher growth and hyase …

The prophage-encoded hyaluronate lyase has broad substrate specificity and is regulated by the N-terminal domain

SK Singh, AP Bharati, N Singh, P Pandey… - Journal of Biological …, 2014 - ASBMB
Streptococcus equi is the causative agent of the highly contagious disease" strangles" in
equines and zoonotic meningitis in human. Spreading of infection in host tissues is thought …

Characterization of hyaluronic acid specific hyaluronate lyase (HylP) from Streptococcus pyogenes

SK Singh, S Malhotra, MS Akhtar - Biochimie, 2014 - Elsevier
Streptococcus pyogenes is associated with a wide variety of mucosal and invasive infections
that claim human life. The conversion from non pathogenic to toxigenic strain of S. pyogenes …

Cytotoxic and antioxidant effects of unsaturated hyaluronic acid oligomers

NS El-Safory, CK Lee - Carbohydrate polymers, 2010 - Elsevier
Hyaluronate lyase cleaves hyaluronan chains at a β-d-GalNAc-(1→ 4)-β-d-GlcA bond,
ultimately breaking the polysaccharide down to 3-(4-deoxy-β-d-gluc-4-enuronosyl)-N-acetyl …

Characterization of hyaluronate lyase from Streptococcus pyogenes bacteriophage H4489A

NS El-Safory, GC Lee, CK Lee - Carbohydrate polymers, 2011 - Elsevier
Hyaluronate (HA) lyase of Streptococcus pyogenes bacteriophage H4489A, was expressed
in Escherichia coli, purified, and characterized. The purified homogeneous preparation of …

Catalytic Mechanism of Hyaluronate Lyase from Spectrococcus pneumonia: Quantum Mechanical/Molecular Mechanical and Density Functional Theory Studies

M Zheng, D Xu - The Journal of Physical Chemistry B, 2013 - ACS Publications
Hyaluronate lyase from Spectrococcus pneumonia can degrade hyaluronic acid, which is
one of the major components in the extracellular matrix. The major functions of hyaluronan …

Cation induced differential effect on structural and functional properties of Mycobacterium tuberculosis α-Isopropylmalate synthase

K Singh, V Bhakuni - BMC Structural Biology, 2007 - Springer
Background α-isopropylmalate synthase (MtαIPMS), an enzyme that catalyzes the first
committed step of the leucine biosynthetic pathway of Mycobacterium tuberculosis is a …

[PDF][PDF] Presence of collagen-like repeats in bacteriophage–encoded hyaluronate lyase

SK Singh, T Tripathi - Journal of Scientific Research, 2020 - academia.edu
Gly-XY (Gly represents glycine) motif is a collagen-like repeat present at the N-terminal
domain of bacteriophage hyaluronate lyase (Phage HL). It addition in providing …