Results 31 to 40 of about 7,539 (175)
Lack of an efficient endoplasmic reticulum-localized recycling system protects peroxiredoxin IV from hyperoxidation [PDF]
, 2014 Typical 2-cys peroxiredoxins are required to remove hydrogen peroxide from several different cellular compartments. Their activity can be regulated by hyperoxidation and consequent inactivation of the active site peroxidatic cysteine.
Bulleid, Neil J. +2 more
core +1 more source
Changes in the Conformational State of Hemoglobin in Hemodialysed Patients with Chronic Renal Failure [PDF]
, 2015 The aim of this study was to evaluate the properties of internal components of erythrocytes in chronic renal failure (CRF) patients undergoing hemodialysis (HD) in comparison to control subjects.
Gwozdzinski, Krzysztof +1 more
core +7 more sources
Ferroptosis: The Demise of Cells Through Phospholipid Peroxidation
Advanced Science, EarlyView.The relative abundance of peroxidation‐resistant monounsaturated fatty acids (MUFAs) vs. peroxidation‐sensitive polyunsaturated fatty acids (PUFAs) incorporated into phospholipid (PL) is a key determinant of ferroptosis sensitivity, as the peroxidation of PL PUFA acyl chains (PUFA‐PL) disrupts membrane integrity, causing ferroptotic cell death ...
Shaojie Cui, Jin Ye
wiley +1 more source
Memory of Chirality in Radical Addition–Translocation–Cyclization Cascades
Helvetica Chimica Acta, EarlyView.Radical addition–translocation–cyclization cascades of chiral alkynes show striking memory of chirality (MoC), with strong retention of configuration when fast, polarity favored cyclization are involved. The most effective system employs a highly electron‐poor pentafluorobenzenesulfonyl group.
Christian Simon Gloor +3 more
wiley +1 more source
Examining the PM6 semiempirical method for pKa prediction across a wide range of oxyacids [PDF]
, 2009 The pK~a~ estimation ability of the semiempirical PM6 method was evaluated across a broad range of oxyacids and compared to results obtained using the SPARC software program.
Kaya Forest +2 more
core +1 more source
The FEBS Journal, EarlyView.Quinolones are valuable scaffolds for drug discovery but are rare in nature. Here, we show that two fungal enzymes, AthePKS and FerePKS, can generate 2‐quinolones and two additional heteroaromatic scaffolds. Using AthePKS, we designed an artificial enzymatic cascade towards an antimicrobial quinolone from a simple precursor and implemented it in E ...
Nika Sokolova +5 more
wiley +1 more source
The role of peroxiredoxins in cancer [PDF]
, 2017 Peroxiredoxins (PRDXs) are a ubiquitously expressed family of small (22-27 kDa) non-seleno peroxidases that catalyze the peroxide reduction of H2O2, organic hydroperoxides and peroxynitrite.
CAPALBO, CARLO +4 more
core +1 more source
Plant, Cell &Environment, EarlyView.ABSTRACT In plants, iron homeostasis and oxygen metabolism are strictly related, indeed several Fe‐requiring enzymes catalyze reactions that also involve O2 as a reagent, product, entry or end point of the pathway. Oxygen sensing itself relies on the Fe‐dependent enzymes Plant cysteine oxidases.
Yuri Telara +9 more
wiley +1 more source
Analyzing the Catalytic Mechanism of the Fe-Type Nitrile Hydratase from \u3cem\u3eComamonas testosteroni\u3c/em\u3e Ni1 [PDF]
, 2008 In order to gain insight into the catalytic mechanism of Fe-type nitrile hydratases (NHase), the pH and temperature dependence of the kinetic parameters kcat, Km, and kcat/Km along with the solvent isotope effect were examined for the Fe-type NHase from ...
Holz, Richard C., Rao, Saroja
core +1 more source
Direct evidence of singlet molecular oxygen [O2 (1Δg)] production from UVA excited 6‐thioguanine
Photochemistry and Photobiology, EarlyView.6‐Thioguanine (6‐TGua) is incorporated into DNA as a purine analogue, inhibiting cell replication. Patients treated with 6‐TGua are more prone to developing skin cancer due to the photoexcitation of 6‐TGua by UVA radiation (as illustrated in the Jablonski diagram). Upon exposure to UVA, the excited 6‐TGua generates 1O2.
André L. Lopes +6 more
wiley +1 more source