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- *******************************************
- * Dihydroorotate dehydrogenase signatures *
- *******************************************
-
- Dihydroorotate dehydrogenase (EC 1.3.3.1) (DHOdehase) catalyzes the fourth
- step in the de novo biosynthesis of pyrimidine, the conversion of
- dihydroorotate into orotate. DHOdehase is a ubiquitous FAD flavoprotein.
-
- In bacteria (gene pyrD), DHOdease is located on the inner side of the
- cytosolic membrane. In some yeasts, such as in Saccharomyces cerevisiae (gene
- URA1), it is a cytosolic protein while in other eukaryotes it is found in the
- mitochondria [1].
-
- The sequence of DHOdease is rather well conserved and we have developed two
- signature patterns specific to this enzyme. The first corresponds to a region
- in the N-terminal section of the enzyme while the second is located in the C-
- terminal section and seems to be part of the FAD-binding domain.
-
- -Consensus pattern: [STA]-[LIVMSTA]-T-x(3)-[QR]-x-G-N-[PD]-x-P-R-[LIVMFYW]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Consensus pattern: [LIVM](2)-G-x-G-G-[LIVM]-x-[ST]-x(3)-A-x(6)-G-A
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Last update: October 1993 / First entry.
-
- [ 1] Nagy M., Lacroute F., Thomas D.
- Proc. Natl. Acad. Sci. U.S.A. 89:8966-8970(1992).
-