Annotations: 2YCI

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth X]	d2ycix1	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Dihydropteroate synthetase-like	Methyltetrahydrofolate-utiluzing methyltransferases	automated matches	(Carboxydothermus hydrogenoformans Z-2901 ) [TaxId: 246194 ],	SCOPe (2.08)
A [auth X]	d2ycix2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Carboxydothermus hydrogenoformans Z-2901 ) [TaxId: 246194 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth X]	SCOP2 Family	Methyltetrahydrofolate-utiluzing methyltransferases	8085428	4003343	SCOP2 (2022-06-29)
A [auth X]	SCOP2 Superfamily	Dihydropteroate synthetase-like	8085429	3000643	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	Pterin_bind	e2yciX1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Pterin_bind	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	3.20.20.20	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Dihydropteroate synthase-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF00809	Pterin binding enzyme (Pterin_bind)	Pterin binding enzyme	This family includes a variety of pterin binding enzymes that all adopt a TIM barrel fold. The family includes dihydropteroate synthase EC:2.5.1.15 as well as a group methyltransferase enzymes including methyltetrahydrofolate, corrinoid iron-sulfur p ...	This family includes a variety of pterin binding enzymes that all adopt a TIM barrel fold. The family includes dihydropteroate synthase EC:2.5.1.15 as well as a group methyltransferase enzymes including methyltetrahydrofolate, corrinoid iron-sulfur protein methyltransferase (MeTr) Swiss:Q46389 that catalyses a key step in the Wood-Ljungdahl pathway of carbon dioxide fixation. It transfers the N5-methyl group from methyltetrahydrofolate (CH3-H4folate) to a cob(I)amide centre in another protein, the corrinoid iron-sulfur protein. MeTr is a member of a family of proteins that includes methionine synthase and methanogenic enzymes that activate the methyl group of methyltetra-hydromethano(or -sarcino)pterin [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	5-METHYLTETRAHYDROFOLATE CORRINOID/IRON SULFUR PROTEIN METHYLTRANSFERASE	transferase activity, transferring one-carbon groups transferase activity methyltransferase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	methylation metabolic process pteridine-containing compound metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR050554	Methionine Synthase/Corrinoid	Family
A [auth X]	IPR011005	Dihydropteroate synthase-like superfamily	Homologous Superfamily
A [auth X]	IPR000489	Pterin-binding domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.