A hot oxygen stream is fed into a catalyst regenerator flue gas stream that contains carbon monoxide to remove carbon monoxide. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing 38692 or 21117 nucleic acid molecules, host cells into which the expression vectors have been introduced, and nonhuman transgenic animals in which a 38692 or 21117 gene has been introduced or disrupted. A cache controller 11 determines whether the target data corresponding to the read requests are present in a cache memory 4 in the order of serialized read requests and, if present, receives the target data from the cache memory 4 via a memory controller 12.