PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17728871-8 2007 The nucleosides 3a-d exist predominantly in the keto (lactam) form with K(TAUT) (keto/enol) values of 400-1200 compared to 10(3)-10(4) for pyrrolo[2,3-d]pyrimidine isoguanosine derivatives 4a-c and 10 for isoguanosine itself, which will reduce RNA mispairing with U. Nucleosides 4-15 solute carrier family 6 member 6 Homo sapiens 74-78 15913364-4 2005 Moreover, the halogenated nucleosides shift the tautomeric keto-enol equilibrium strongly toward the keto form, with K(TAUT) [keto]/[enol] approximately 10(4) coming close to that of 2"-deoxyguanosine (10(4)-10(5)), while the nonhalogenated 7-deaza-2"-deoxyisoguanosine 2 shows a K(TAUT) of around 2000 and the enol concentration of 1 is 10% in aqueous solution. Nucleosides 26-37 solute carrier family 6 member 6 Homo sapiens 119-123 15913364-4 2005 Moreover, the halogenated nucleosides shift the tautomeric keto-enol equilibrium strongly toward the keto form, with K(TAUT) [keto]/[enol] approximately 10(4) coming close to that of 2"-deoxyguanosine (10(4)-10(5)), while the nonhalogenated 7-deaza-2"-deoxyisoguanosine 2 shows a K(TAUT) of around 2000 and the enol concentration of 1 is 10% in aqueous solution. Nucleosides 26-37 solute carrier family 6 member 6 Homo sapiens 282-286