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Tetrapyrrole methylase superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a/b) [ 51349] (147)
Fold:   Tetrapyrrole methylase [ 53789]
Superfamily:   Tetrapyrrole methylase [ 53790]
Families:   Tetrapyrrole methylase [ 53791] (7)


Superfamily statistics
Genomes (3,179) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 11,580 90,291 12
Proteins 11,368 88,892 12


Functional annotation
General category Metabolism
Detailed category Transferases

Document:
Function annotation of SCOP domain superfamilies

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEO levelAnnotation (direct or inherited)
Enzyme Commission (EC)Oxidoreductases0Least InformativeDirect
Enzyme Commission (EC)Lyases0Least InformativeDirect
Enzyme Commission (EC)Transferring one-carbon groups0Least InformativeDirect
Enzyme Commission (EC)Acting on the CH-CH group of donors0Moderately InformativeDirect
Enzyme Commission (EC)Methyltransferases0Moderately InformativeDirect
Enzyme Commission (EC)Sole sub-subclass for lyases that do not belong in1InformativeInherited
Enzyme Commission (EC)Sirohydrochlorin ferrochelatase0Highly InformativeDirect
Enzyme Commission (EC)Uroporphyrinogen-III C-methyltransferase0Highly InformativeDirect

Document: EC annotation of SCOP domains

Arabidopsis Plant Ontology (AP)

(show details)
AP termFDR (all)SDAP levelAnnotation (direct or inherited)
Plant ANatomical entity (PAN)whole plant0Least InformativeDirect
Plant ANatomical entity (PAN)guard cell0Least InformativeDirect
Plant ANatomical entity (PAN)seed0Least InformativeDirect
Plant ANatomical entity (PAN)microsporophyll0Least InformativeDirect
Plant ANatomical entity (PAN)flower0Least InformativeDirect
Plant ANatomical entity (PAN)inflorescence0Least InformativeDirect
Plant ANatomical entity (PAN)collective phyllome structure0Least InformativeDirect
Plant ANatomical entity (PAN)root system0Least InformativeDirect
Plant ANatomical entity (PAN)shoot axis0Least InformativeDirect
Plant ANatomical entity (PAN)leaf0Least InformativeDirect
Plant ANatomical entity (PAN)cardinal part of multi-tissue plant structure0Least InformativeDirect
Plant ANatomical entity (PAN)cotyledon0Moderately InformativeDirect
Plant structure DEvelopment stage (PDE)4 leaf senescence stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)E expanded cotyledon stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)F mature embryo stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)C globular stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)D bilateral stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.12 twelve leaves visible stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.02 two leaves visible stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.10 ten leaves visible stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.04 four leaves visible stage0Least InformativeDirect

Document: AP annotation of SCOP domains

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEC levelAnnotation (direct or inherited)
Enzyme Commission (EC)Oxidoreductases0Least InformativeDirect
Enzyme Commission (EC)Lyases0Least InformativeDirect
Enzyme Commission (EC)Transferring one-carbon groups0Moderately InformativeDirect
Enzyme Commission (EC)With NAD(+) or NADP(+) as acceptor0InformativeDirect
Enzyme Commission (EC)Other lyases1Highly InformativeInherited

Document: EC annotation of SCOP domains

InterPro annotation
Cross references IPR000878 SSF53790 Protein matches
Abstract

Tetrapyrroles are large macrocyclic compounds derived from a common biosynthetic pathway [PubMed11215515]. The end-product, uroporphyrinogen III, is used to synthesise a number of important molecules, including cobalamin (vitamin B12), haem, sirohaem, chlorophyll, coenzyme F430 and phytochromobilin [PubMed17227226].

This entry represents several tetrapyrrole methylases, which consist of two non-similar domains. These enzymes catalyse the methylation of their substrates using S-adenosyl-L-methionine as a methyl source. Enzymes in this family include:

  • Uroporphyrinogen III methyltransferase (SUMT), which catalyses the conversion of uroporphyrinogen III to precorrin-2 at the first branch-point of the tetrapyrrole synthesis pathway, directing the pathway towards cobalamin or sirohaem synthesis [PubMed15522295].
  • Precorrin-2 C20-methyltransferase CobI/CbiL , which introduces a methyl group at C-20 on precorrin-2 to produce precorrin-3A during cobalamin biosynthesis. This reaction is key to the conversion of a porphyrin-type tetrapyrrole ring to a corrin ring [PubMed17229157]. In some species, this enzyme is part of a bifunctional protein.
  • Precorrin-4 C11-methyltransferase CobM/CbiF , which introduces a methyl group at C-11 on precorrin-4 to produce precorrin-5 during cobalamin biosynthesis [PubMed16866557].
  • Sirohaem synthase CysG , domains 4 and 5, which synthesizes sirohaem from uroporphyrinogen III, at the first branch-point in the tetrapyrrole biosynthetic pathway, directing the pathway towards sirohaem synthesis [PubMed14595395].
  • Diphthine synthase , which carries out the methylation step during the modification of a specific histidine residue of elongation factor 2 (EF-2) during diphthine synthesis.

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) · Arabidopsis Plant Ontology (AP) · 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 10 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 Tetrapyrrole methylase 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 10 hidden Markov models representing the Tetrapyrrole methylase 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) · Arabidopsis Plant Ontology (AP) · Enzyme Commission (EC) · Internal database links ]