1.0 2011-09-21 00:26:41 UTC 2015-07-21 06:57:36 UTC FDB023234 Phosphoroselenoic acid Phosphoroselenoic acid, H3SePO3, is the activated selenium donor compound required for the biosynthesis of selenocysteyl-tRNA, the precursor of specific selenocysteine residues in bacterial and mammalian selenoproteins. Selenocysteine is the 21st amino acid, because Sec has a specific tRNA and codon UGA, and shares a major stop codon UGA. A number of enzymes have selenocysteine, residues and in some cases at their active sites. Proteins containing the 21st amino acid, selenocysteine (Sec), have been described in all three domains of life. (PMID: 18156471) [HMDB] [P(OH)3Se] Monoselenooric acid Monoselenophosphoric acid Selenoate Selenoic acid Selenooric acid Selenophosphoric acid SePO3 Trihydroxidoselenidoorus trihydroxidoselenidophosphorus H3O3PSe 160.96 161.898502302 hydroxy(selanylidene)phosphonous acid selenophosphoric acid 25758-66-1 OP(O)(O)=[Se] InChI=1S/H3O3PSe/c1-4(2,3)5/h(H3,1,2,3,5) JRPHGDYSKGJTKZ-UHFFFAOYSA-N belongs to the class of inorganic compounds known as non-metal selenophosphates. These are inorganic compounds in which the largest oxoanion is selenophosphate, and in which the heaviest atom not in an oxoanion is a non-metal element. Non-metal selenophosphates Inorganic compounds Mixed metal/non-metal compounds Other mixed metal/non-metal oxoanionic compounds Non-metal selenophosphates Non-metal selenophosphate phosphoric acid derivative Solid logp -1.1 ChemAxon pka_strongest_acidic -6.3 ChemAxon iupac hydroxy(selanylidene)phosphonous acid ChemAxon average_mass 160.96 ChemAxon mono_mass 161.898502302 ChemAxon smiles OP(O)(O)=[Se] ChemAxon formula H3O3PSe ChemAxon inchi InChI=1S/H3O3PSe/c1-4(2,3)5/h(H3,1,2,3,5) ChemAxon inchikey JRPHGDYSKGJTKZ-UHFFFAOYSA-N ChemAxon polar_surface_area 60.69 ChemAxon refractivity 26.32 ChemAxon polarizability 7.23 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 4 ChemAxon donor_count 3 ChemAxon physiological_charge -3 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 15002 Specdb::CMs 136167 Specdb::CMs 143901 Specdb::MsIr 2070 Specdb::MsMs 23129 Specdb::MsMs 23130 Specdb::MsMs 23131 Specdb::MsMs 29927 Specdb::MsMs 29928 Specdb::MsMs 29929 Specdb::MsMs 2733900 Specdb::MsMs 2733901 Specdb::MsMs 2733902 Specdb::MsMs 2971608 Specdb::MsMs 2971609 Specdb::MsMs 2971610 HMDB03840 #<Reference:0x00007f090597cba0> Anatidae Type 1 specific Anatidae 8830 Beefalo Type 1 specific Bos taurus X Bison bison 297284 Bison Type 1 specific Bison bison 9901 Buffalo Type 1 specific Bubalus bubalis 89462 Cattle (Beef, Veal) Type 1 specific Bos taurus 9913 Chicken Type 1 specific Gallus gallus 9031 Columbidae (Dove, Pigeon) Type 1 specific Columbidae 8930 Deer Type 1 specific Cervidae 9850 Domestic goat Type 1 specific Capra aegagrus hircus 9925 Domestic pig Type 1 specific Sus scrofa domestica 9825 Elk Type 1 specific Cervus canadensis 1574408 Emu Type 1 specific Dromaius novaehollandiae 8790 European rabbit Type 1 specific Oryctolagus 9984 Greylag goose Type 1 specific Anser anser 8843 Guinea hen Type 1 specific Numida meleagris 8996 Horse Type 1 specific Equus caballus 9796 Mallard duck Type 1 specific Anas platyrhynchos 8839 Mountain hare Type 1 specific Lepus timidus 62621 Mule deer Type 1 specific Odocoileus 9871 Ostrich Type 1 specific Struthio camelus 8801 Pheasant Type 1 specific Phasianus colchicus 9054 Quail Type 1 specific Phasianidae 9005 Rabbit Type 1 specific Leporidae 9979 Rock ptarmigan Type 1 specific Lagopus muta 64668 Sheep (Mutton, Lamb) Type 1 specific Ovis aries 9940 Squab Type 1 specific Columba 8931 Turkey Type 1 specific Meleagris gallopavo 9103 Velvet duck Type 1 specific Melanitta fusca 371864 Wild boar Type 1 specific Sus scrofa 9823 O-phosphoseryl-tRNA(Sec) selenium transferase Q9HD40 SEPSECS Selenide, water dikinase 1 P49903 SEPHS1 Selenide, water dikinase 2 Q99611 SEPHS2