Predicted alpha-1,6-mannanase, GH76 family [Carbohydrate transport and metabolism].

Glycosyl hydrolase family 76. Family of alpha-1,6-mannanases.

Cyclases involved in the biosynthesis of lantibiotics, and similar proteins. LanC is the cyclase enzyme of the lanthionine synthetase. Lanthionine is a lantibiotic, a unique class of peptide antibiotics. They are ribosomally synthesized as a precursor peptide and then post-translationally modified to contain thioether cross-links called lanthionines (Lans) or methyllanthionines (MeLans), in addition to 2,3-didehydroalanine (Dha) and (Z)-2,3-didehydrobutyrine (Dhb). These unusual amino acids are introduced by the dehydration of serine and threonine residues, followed by thioether formation via addition of cysteine thiols, catalysed by LanB and LanC or LanM. LanC, the cyclase component, is a zinc metalloprotein, whose bound metal has been proposed to activate the thiol substrate for nucleophilic addition. A related domain is also present in LanM and other pro- and eukaryotic proteins with poorly characterized functions.

Cyclases involved in the biosynthesis of lantibiotics, and similar proteins. LanC is the cyclase enzyme of the lanthionine synthetase. Lanthionine is a lantibiotic, a unique class of peptide antibiotics. They are ribosomally synthesized as a precursor peptide and then post-translationally modified to contain thioether cross-links called lanthionines (Lans) or methyllanthionines (MeLans), in addition to 2,3-didehydroalanine (Dha) and (Z)-2,3-didehydrobutyrine (Dhb). These unusual amino acids are introduced by the dehydration of serine and threonine residues, followed by thioether formation via addition of cysteine thiols, catalysed by LanB and LanC or LanM. LanC, the cyclase component, is a zinc metalloprotein, whose bound metal has been proposed to activate the thiol substrate for nucleophilic addition. A related domain is also present in LanM and other pro- and eukaryotic proteins with poorly characterized functions.

Cyclases involved in the biosynthesis of class II lantibiotics, and similar proteins. LanM-like proteins. LanM is a bifunctional enzyme, involved in the synthesis of class II lantibiotics. It is responsible for both the dehydration and the cyclization of the precursor-peptide during lantibiotic synthesis. The C-terminal domain shows similarity to LanC, the cyclase component of the lan operon, but the N terminus seems to be unrelated to the dehydratase, LanB.

Structureof the GH76A alpha-1,6-mannanase from Salegentibacter sp. HEL1_6 [Salegentibacter sp. Hel_I_6],6SHD_B Structure of the GH76A alpha-1,6-mannanase from Salegentibacter sp. HEL1_6 [Salegentibacter sp. Hel_I_6],6SHD_C Structure of the GH76A alpha-1,6-mannanase from Salegentibacter sp. HEL1_6 [Salegentibacter sp. Hel_I_6]

ChainA, Alpha-1,6-endo-mannanase GH76A mutant [Salegentibacter sp. Hel_I_6]

Aninactive (D136A and D137A) variant of alpha-1,6-mannanase, GH76A of Salegentibacter sp. HEL1_6 in complex with alpha-1,6-mannotetrose [Salegentibacter sp. Hel_I_6]

ChainA, Lin0763 protein [Listeria innocua]

ChainA, Alpha-1,6-mannanase [Niallia circulans]

Mannan endo-1,6-alpha-mannosidase DCW1 OS=Candida glabrata (strain ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL Y-65) OX=284593 GN=DCW1 PE=3 SV=1

Mannan endo-1,6-alpha-mannosidase DCW1 OS=Ashbya gossypii (strain ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056) OX=284811 GN=DCW1 PE=3 SV=2

Mannan endo-1,6-alpha-mannosidase DCW1 OS=Saccharomyces cerevisiae (strain ATCC 204508 / S288c) OX=559292 GN=DCW1 PE=1 SV=1

Putative mannan endo-1,6-alpha-mannosidase C1198.07c OS=Schizosaccharomyces pombe (strain 972 / ATCC 24843) OX=284812 GN=SPBC1198.07c PE=3 SV=2

Putative mannan endo-1,6-alpha-mannosidase C970.02 OS=Schizosaccharomyces pombe (strain 972 / ATCC 24843) OX=284812 GN=SPCC970.02 PE=3 SV=1