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Perkin Elmer LLC Guanosine 5`-(γ-thio)triphosphate, [35S]-, 250µCi (9.25MBq), 10mM Tricine (pH 7.6), 10mM DTT 1.0mC/mL
Manufacturer: Perkin Elmer LLC NEG030X250UC

Guanosine triphosphate, labeled on the gamma phosphate group with 35S (GTP?S), is used in GTP binding assays with cell membrane preparations as a functional assay for certain classes of GPCRs. It is hydrolyzed slowly, and is considered a non-hydrolyzable analog for GTP binding assays.
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