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Alignment of two parts of the lycopene cyclase domain of the CarRA protein from Phycomyces and proteins CrtYc and CrtYd from Brevibacterium linens (ref. 34; GenBank accession no. AF139916). CarRA(1) and CarRA(2) represent the 133-aa sequence that precedes the intron location and the next 128 aa, respectively. The black circles locate missense mutations in red mutants of Phycomyces.
