Annotations: 7S2I

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e7s2iA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: F_UNCLASSIFIED	ECOD (1.6)
B	F_UNCLASSIFIED	e7s2iB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: F_UNCLASSIFIED	ECOD (1.6)

AMR Gene: CARD Annotation CARD Database Homepage

Chains	Accession	Short Name	Description	Provenance Source (Version)
A, B	ARO:3000410	sul1	Sul1 is a sulfonamide resistant dihydropteroate synthase of Gram-negative bacteria. It is linked to other resistance genes of class 1 integrons.	CARD (3.3.0)

AMR Gene Family: CARD Annotation CARD Database Homepage

Chains	Accession	Gene Family	Drug Class	Resistance Machanism	Provenance Source (Version)
A, B	ARO:3004238	sulfonamide resistant sul	sulfonamide antibiotic	antibiotic target replacement	CARD (3.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	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, B	Sul1	dihydropteroate synthase activity transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity cation binding ion binding binding metal ion binding small molecule binding	oxoacid metabolic process cellular biosynthetic process vitamin biosynthetic process organic acid metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process small molecule metabolic process amide metabolic process water-soluble vitamin metabolic process folic acid metabolic process dicarboxylic acid biosynthetic process folic acid biosynthetic process folic acid-containing compound biosynthetic process water-soluble vitamin biosynthetic process oxoacid metabolic process cellular biosynthetic process vitamin biosynthetic process organic acid metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process small molecule metabolic process amide metabolic process water-soluble vitamin metabolic process folic acid metabolic process dicarboxylic acid biosynthetic process folic acid biosynthetic process folic acid-containing compound biosynthetic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular metabolic process dicarboxylic acid metabolic process carboxylic acid metabolic process amide biosynthetic process cellular modified amino acid metabolic process vitamin metabolic process biosynthetic process cellular modified amino acid biosynthetic process folic acid-containing compound metabolic process pteridine-containing compound biosynthetic process metabolic process cellular process pteridine-containing compound metabolic process tetrahydrofolate biosynthetic process tetrahydrofolate metabolic process response to stimulus response to chemical response to antibiotic	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011005	Dihydropteroate synthase-like superfamily	Homologous Superfamily
A, B	IPR045031	Dihydropteroate synthase-like	Family
A, B	IPR006390	Dihydropteroate synthase domain	Domain
A, B	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.