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| PR:Q9VS60 | ceramide phosphoethanolamine synthase SMSr (fruit fly) | | |  | | |
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| PR:Q20696 | sphingomyelin synthase-related 1 (worm) | | |  | | |
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| PR:Q96LT4 | sphingomyelin synthase-related protein 1 (human) | | |  | | |
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| PR:Q96LT4-1 | sphingomyelin synthase-related protein 1 isoform h1 (human) | | |  | | |
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| PR:Q96LT4-2 | sphingomyelin synthase-related protein 1 isoform h2 (human) | | |  | | |
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| PR:Q9DA37 | sphingomyelin synthase-related protein 1 (mouse) | | |  | | |