Top Level Name

  ⌊ Superfamily (core) Radical SAM

    ⌊ Subgroup AviX12-like

     ⌊ Family avilamycin epimerase

Total 100% <100%
Functional domains 3 3 0
UniProtKB 3 3 0
GI 7 7 0
Structures 0
Reactions 1
Functional domains of this family were last updated on June 10, 2017
New functional domains were last added to this family on July 5, 2014

The biosynthesis of avilamycin, an oligosaccharide antibiotic, starts with the formation of a disaccharide synthesised from d-glucose. AviX12 is involved in C-2 epimerization of the glucose moiety after the whole avilamycin molecule has been formed to form the d-mannose stereoisomer. Unusually, the C-2 carbon is an uncativated centre, and it is thought that AviX12 generates the 5'deoxyadenosyl radical, which abstracts a hydrogen atom a position C-2 of the mannose moiety to form a radical intermediate. This intermediate undergoes epimerization by an unknown mechanism.

Boll R, Hofmann C, Heitmann B, Hauser G, Glaser S, Koslowski T, Friedrich T, Bechthold A

The active conformation of avilamycin A is conferred by AviX12, a radical AdoMet enzyme

▸ Abstract

J Biol Chem 2006;281(21):14756-14763 | PubMed ID: 16537546

No notes.

Static File Downloads

File Name Description Parameters Stats
network.fam421.bs60.mek250K.xgmml One node per sequence network min bit score = 60
max edge count = 250K
size = 6.4K
num_edges = 3
num_nodes = 3
sfld_alignment_fam421.msa Annotated Sequence Alignment, Stockholm format 2 sequences
size: 2.1K

Total number of functional domains in this group.
Number of Functional Domains that have been manually or automatically been assigned to a family.
Number of Functional Domains that have not been assigned to a family.
Number of structures available from the PDB for members of this group.
Number of Functional Domains with 100% of Conserved Residues
Number of Functional Domains with less than 100% Conserved Residues

Catalyzed Reaction(s)

avilamycin A epimerase

+ + +
avilamycin A precursor
85647
S-adenosyl-L-methionine zwitterion
59789
avilamycin A
85646
5'-deoxyadenosine
17319
L-methionine zwitterion
57844

EC: 5.1.3.- | IntEnz: 5.1.3.- | Kegg: 5.1.3.- | BioCyc: 5.1.3.- | BRENDA: 5.1.3.- |