PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12731842-4 2003 We found that, without any oxidant scavenger, OH and NO3 concentrations in the sampler can be kept high even when wall loss processes of radicals are taken into account The relatively high concentration of OH is mainly due to the production of HO(x) in the sample air via the decomposition of HO2NO2 and O3-olefin reactions, whereas NO3 is produced by the decomposition of N2O5. nitrogen pentoxide 373-377 NBL1, DAN family BMP antagonist Homo sapiens 53-56