Full Text Journal Articles by
Author Susmitnarayan Chaudhury

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Discovery of iron-sensing bacterial riboswitches.

Siladitya Bandyopadhyay, Susmitnarayan Chaudhury, Dolly Mehta, Arati Ramesh,

Despite the central role of iron in biology, our understanding of how cells sense iron is limited to protein-dependent mechanisms. Here, we report the discovery of iron-sensing riboswitches (named Sensei). Present across bacterial phyla, these RNAs reside in the 5' untranslated regions or within coding regions of messenger RNAs (mRNAs) ... Read more >>

Nat Chem Biol (Nature chemical biology)
[2020, :]

Cited: 0 times

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Tuning the mechanical and physicochemical properties of cross-linked protein films.

Sultana Parveen, Susmitnarayan Chaudhury, Swagata Dasgupta,

Films derived from natural sources such as proteins provide an advantage over synthetic films due to their noncytotoxicity, biodegradability, and vast functionality. A new protein source gained from the cataractous eye protein isolate (CEPI) obtained after surgery has been investigated for this purpose. Glycerol has been employed as the plasticizer ... Read more >>

Biopolymers (Biopolymers)
[2019, 110(10):e23321]

Cited: 0 times

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Probing the inhibitory potency of epigallocatechin gallate against human γB-crystallin aggregation: Spectroscopic, microscopic and simulation studies.

Susmitnarayan Chaudhury, Anirudha Dutta, Sudipta Bag, Pranandita Biswas, Amit Kumar Das, Swagata Dasgupta,

Aggregation of human ocular lens proteins, the crystallins is believed to be one of the key reasons for age-onset cataract. Previous studies have shown that human γD-crystallin forms amyloid like fibres under conditions of low pH and elevated temperature. In this article, we have investigated the aggregation propensity of human ... Read more >>

Spectrochim Acta A Mol Biomol Spectrosc (Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy)
[2018, 192:318-327]

Cited: 1 time

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β-cyclodextrin encapsulated polyphenols as effective antioxidants.

Pritam Roy, Amit Kumar Dinda, Susmitnarayan Chaudhury, Swagata Dasgupta,

Formation of dityrosine (DT) cross-linkages in proteins is one of the most widely used markers of oxidative stress. Ribonuclease A (RNase A) has 6 Tyr residues and shows a characteristic DT fluorescence peak upon oxidation in addition to major changes in its secondary structure. DT formation can be prevented by ... Read more >>

Biopolymers (Biopolymers)
[2018, 109(1):]

Cited: 4 times

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Green tea flavanols protect human γB-crystallin from oxidative photodamage.

Susmitnarayan Chaudhury, Pritam Roy, Swagata Dasgupta,

Age related cataract is a major cause of visual loss worldwide that is a result of opacification of the eye lens proteins. One of the major reasons behind this deterioration is UV induced oxidative damage. The study reported here is focused on an investigation of the oxidative stress induced damage ... Read more >>

Biochimie (Biochimie)
[2017, 137:46-55]

Cited: 3 times

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Glycation of human γB-crystallin: A biophysical investigation.

Susmitnarayan Chaudhury, Pooja Ghosh, Sultana Parveen, Swagata Dasgupta,

Glycation of ocular lens proteins plays a vital role in the development of diabetic cataract. In order to investigate the role of glycation in cataractogenesis, the extent of glycation of human γB-crystallin was determined by an in vitro glycation study in a solution of high glucose content for upto 28days. ... Read more >>

Int. J. Biol. Macromol. (International journal of biological macromolecules)
[2017, 96:392-402]

Cited: 3 times

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Protection of human γB-crystallin from UV-induced damage by epigallocatechin gallate: spectroscopic and docking studies.

Susmitnarayan Chaudhury, Sudipta Bag, Madhuparna Bose, Amit Kumar Das, Ananta Kumar Ghosh, Swagata Dasgupta,

The transparency of the human eye lens depends on the solubility and stability of the structural proteins of the eye lens, the crystallins. Although the mechanism of cataract formation is still unclear, it is believed to involve protein misfolding and/or aggregation of proteins due to the influence of several external ... Read more >>

Mol Biosyst (Molecular bioSystems)
[2016, 12(9):2901-2909]

Cited: 3 times

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Hydrophobic tail length plays a pivotal role in amyloid beta (25-35) fibril-surfactant interactions.

Sudipta Bag, Susmitnarayan Chaudhury, Dibyendu Pramanik, Sunando DasGupta, Swagata Dasgupta,

The amyloid β-peptide fragment comprising residues 25-35 (Aβ25-35 ) is known to be the most toxic fragment of the full length Aβ peptide which undergoes fibrillation very rapidly. In the present work, we have investigated the effects of the micellar environment (cationic, anionic, and nonionic) on preformed Aβ25-35 fibrils. The ... Read more >>

Proteins (Proteins)
[2016, 84(9):1213-1223]

Cited: 2 times

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EGCG prevents tryptophan oxidation of cataractous ocular lens human γ-crystallin in presence of H2O2.

Susmitnarayan Chaudhury, Ishita Ghosh, Gautam Saha, Swagata Dasgupta,

Disruption of the short range order of proteins present in the ocular lens leads to cataract resulting in a loss of transparency. Human γ-crystallin (HGC), a water soluble protein present in the lens is known to aggregate with aging. A modified form of HGC (HGC(c)) was isolated from cataractous human ... Read more >>

Int. J. Biol. Macromol. (International journal of biological macromolecules)
[2015, 77:287-292]

Cited: 2 times

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Distribution of protein Ramachandran psi (ψ) angle using non-resonance visible raman scattering measurements.

Susmita Bhattacharya, Sudeshna Ghosh, Nitin Kumar Pandey, Susmitnarayan Chaudhury, Swagata Dasgupta, Anushree Roy,

Knowing the distribution of Ramachandran angles helps in understanding peptide and protein backbone conformation. Empirical relations are proposed to correlate the spectral profile of the amide III3 band, obtained from ultraviolet resonance Raman measurements (UVRR), with the Ramachandran dihedral psi angle distribution in small peptide and protein molecules, in different ... Read more >>

J Phys Chem B (The journal of physical chemistry. B)
[2013, 117(45):13993-14000]

Cited: 2 times

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