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CATH Superfamily 3.80.30.20

tm_1862 like domain

The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
tm_1862 like domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 18: Anaerobic magnesium-protoporphyrin IX monomethyl e...

There are 1 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
Anaerobic magnesium-protoporphyrin IX monomethyl ester cyclase. [EC: 1.21.98.3]
Magnesium-protoporphyrin IX 13-monomethyl ester + 3 S-adenosyl-L- methionine + H(2)O = 3,8-divinyl protochlorophyllide a + 3 5'-deoxyadenosine + 3 L-methionine.
  • This radical AdoMet enzyme participates in the biosynthesis of chlorophyllide a in anaerobic bacteria, catalyzing the formation of an isocyclic ring.
  • The same transformation is achieved in aerobic organisms by the oxygen-dependent EC 1.14.13.81.
  • Some facultative phototrophic bacteria, such as Rubrivivax gelatinosus, possess both enzymes.
 4 A0A0E2PXX2 A0A0E2PXX2 P26168 P26168
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