SUPERFAMILY 1.75 HMM library and genome assignments server

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Precorrin-8X methylmutase CbiC/CobH superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a/b) [ 51349] (147)
Fold:   Flavodoxin-like [ 52171] (15)
Superfamily:   Precorrin-8X methylmutase CbiC/CobH [ 63965]
Families:   Precorrin-8X methylmutase CbiC/CobH [ 63966] (2)

Superfamily statistics
Genomes (980) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 1,062 8,033 3
Proteins 1,061 8,026 3

Functional annotation
General category Metabolism
Detailed category Coenzyme metabolism and transport

Function annotation of SCOP domain superfamilies

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEC levelAnnotation (direct or inherited)
Enzyme Commission (EC)Isomerases0Moderately InformativeDirect
Enzyme Commission (EC)Intramolecular transferases0InformativeDirect

Document: EC annotation of SCOP domains

InterPro annotation
Cross references IPR003722 SSF63965 Protein matches

This entry represents CbiC and CobH precorrin-8X methylmutase (also known as precorrin isomerase, ), both as stand-alone enzymes and when CobJ forms part of a bifunctional enzyme. CobH and CbiC from the aerobic and anaerobic pathways, respectively, catalyse a methyl rearrangement in precorrin-8 that moves the methyl group from C-11 to C-12 to produce hydrogenobyrinic acid [PubMed11470433]. Hydrogenobyrinic acid now contains all the major framework alterations associated with corrin synthesis [PubMed11215515].

CobH and CbiC can sometimes be fused to other enzymes in the cobalamin pathway to make bifunctional enzymes: e.g., with CobJ/CibH (precorrin-3B C17-methylase/precorrin isomerase, ) and with CbiX (precorrin isomerase, ).

InterPro database

PDBeMotif information about ligands, sequence and structure motifs
Cross references PDB entries
Ligand binding statistics
Nucleic-acid binding statistics
Occurrence of secondary structure elements
Occurrence of small 3D structural motifs

PDBeMotif resource

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Enzyme Commission (EC) ]

Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.

Alignments of sequences to 5 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.

Browse and view proteins in genomes which have different domain combinations including a Precorrin-8X methylmutase CbiC/CobH domain.

Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.

Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 5 hidden Markov models representing the Precorrin-8X methylmutase CbiC/CobH superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Enzyme Commission (EC) · Internal database links ]