PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20919747-8 2010 A putative binding model was proposed based on CoMFA and CoMSIA contour maps and docking simulations; formation of pi-stacking, water bridge and specific hydrogen bonding were deemed important interactions between ligands and PDE-5. Water 128-133 phosphodiesterase 5A Homo sapiens 226-231 33947926-12 2021 Considering that they are pharmaceutically active and resistant to treatment processes within an STP, it is advised that a regular monitoring and management program for PDE-5i should be developed to prevent the discharge of the pharmaceuticals into the water environment. Water 253-258 phosphodiesterase 5A Homo sapiens 169-174 30394213-10 2019 While in absence of water molecule its binding affinity has decreased (-7.3 Kcal/mol with PDE4B enzyme and -5.17 Kcal/mol with PDE4D enzyme) as well as no H-bond interactions were observed. Water 20-25 phosphodiesterase 5A Homo sapiens 90-109 29743519-7 2018 The water-in-oil NEs can be a promising non-invasive medication for ED patients with low response to a phosphodiesterase type 5 (PDE5) inhibitor, thus increasing quality of life in the aging society. Water 4-9 phosphodiesterase 5A Homo sapiens 103-127 29743519-7 2018 The water-in-oil NEs can be a promising non-invasive medication for ED patients with low response to a phosphodiesterase type 5 (PDE5) inhibitor, thus increasing quality of life in the aging society. Water 4-9 phosphodiesterase 5A Homo sapiens 129-133 26846459-2 2016 PDE5 inhibitors were extracted from the samples using a 50:50 (v/v) mixture of acetonitrile and water and centrifuged. Water 96-101 phosphodiesterase 5A Homo sapiens 0-4 16281046-2 2006 In co-crystals with PDE5, one of the rings of vardenafil or sildenafil interacts with Tyr(612), a catalytic site AA, via (1) a hydrogen bond with a water molecule and (2) hydrophobic bonds. Water 148-153 phosphodiesterase 5A Homo sapiens 20-24 18161687-2 2008 The only difference between the two PDE5 structures exists in the catalytic, second bridging ligand (BL2) which is HO- or H2O. Water 122-125 phosphodiesterase 5A Homo sapiens 36-40 18161687-3 2008 It has been shown that, whereas BL2 (i.e. HO-) in the PDE5(BL2 = HO-) structure can really bridge the two positively charged metal ions (Zn2+ and Mg2+), BL2 (i.e. H2O) in the PDE5(BL2 = H2O) structure can only coordinate Mg2+. Water 163-166 phosphodiesterase 5A Homo sapiens 54-58 18161687-3 2008 It has been shown that, whereas BL2 (i.e. HO-) in the PDE5(BL2 = HO-) structure can really bridge the two positively charged metal ions (Zn2+ and Mg2+), BL2 (i.e. H2O) in the PDE5(BL2 = H2O) structure can only coordinate Mg2+. Water 163-166 phosphodiesterase 5A Homo sapiens 175-179 18161687-3 2008 It has been shown that, whereas BL2 (i.e. HO-) in the PDE5(BL2 = HO-) structure can really bridge the two positively charged metal ions (Zn2+ and Mg2+), BL2 (i.e. H2O) in the PDE5(BL2 = H2O) structure can only coordinate Mg2+. Water 186-189 phosphodiesterase 5A Homo sapiens 54-58 18161687-3 2008 It has been shown that, whereas BL2 (i.e. HO-) in the PDE5(BL2 = HO-) structure can really bridge the two positively charged metal ions (Zn2+ and Mg2+), BL2 (i.e. H2O) in the PDE5(BL2 = H2O) structure can only coordinate Mg2+. Water 186-189 phosphodiesterase 5A Homo sapiens 175-179 18161687-5 2008 The PDE5(BL2 = H2O) geometries optimized by using the QM/MM method in different ways show strong couplings between these important factors. Water 15-18 phosphodiesterase 5A Homo sapiens 4-8 18161687-6 2008 It is interesting to note that the PDE5(BL2 = HO-) and PDE5(BL2 = H2O) geometries determined by the QM/MM calculations neglecting these three factors are all consistent with the corresponding geometries determined by the QM/MM calculations that account for all of these three factors. Water 66-69 phosphodiesterase 5A Homo sapiens 35-39 18161687-6 2008 It is interesting to note that the PDE5(BL2 = HO-) and PDE5(BL2 = H2O) geometries determined by the QM/MM calculations neglecting these three factors are all consistent with the corresponding geometries determined by the QM/MM calculations that account for all of these three factors. Water 66-69 phosphodiesterase 5A Homo sapiens 55-59 16912214-5 2006 The molecular dynamics simulations and QM/MM calculations on PDE5 demonstrate for the first time that the BL2 in PDE5 should also be HO- rather than H2O as proposed in recently published reports on the x-ray crystal structures, which serves as the nucleophile to initialize the PDE5-catalyzed hydrolysis of cGMP. Water 149-152 phosphodiesterase 5A Homo sapiens 113-117 16912214-5 2006 The molecular dynamics simulations and QM/MM calculations on PDE5 demonstrate for the first time that the BL2 in PDE5 should also be HO- rather than H2O as proposed in recently published reports on the x-ray crystal structures, which serves as the nucleophile to initialize the PDE5-catalyzed hydrolysis of cGMP. Water 149-152 phosphodiesterase 5A Homo sapiens 113-117