Annotations: 4MUO

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Glycos_trans_3N	e4muoA1	A: alpha arrays	X: Nucleoside phosphorylase/phosphoribosyltransferase-N (From Topology)	H: Nucleoside phosphorylase/phosphoribosyltransferase-N (From Topology)	T: Nucleoside phosphorylase/phosphoribosyltransferase-N	F: Glycos_trans_3N	ECOD (1.6)
A	Glycos_transf_3	e4muoA2	A: a/b three-layered sandwiches	X: Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain (From Topology)	H: Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain (From Topology)	T: Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	F: Glycos_transf_3	ECOD (1.6)
B	Glycos_trans_3N	e4muoB1	A: alpha arrays	X: Nucleoside phosphorylase/phosphoribosyltransferase-N (From Topology)	H: Nucleoside phosphorylase/phosphoribosyltransferase-N (From Topology)	T: Nucleoside phosphorylase/phosphoribosyltransferase-N	F: Glycos_trans_3N	ECOD (1.6)
B	Glycos_transf_3	e4muoB2	A: a/b three-layered sandwiches	X: Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain (From Topology)	H: Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain (From Topology)	T: Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	F: Glycos_transf_3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.970.10	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
A	3.40.1030.10	Alpha Beta	3-Layer(aba) Sandwich	Pyrimidine Nucleoside Phosphorylase	Chain A, domain 2	CATH (4.3.0)
B	1.20.970.10	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
B	3.40.1030.10	Alpha Beta	3-Layer(aba) Sandwich	Pyrimidine Nucleoside Phosphorylase	Chain A, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02885	Glycosyl transferase family, helical bundle domain (Glycos_trans_3N)	Glycosyl transferase family, helical bundle domain	This family includes anthranilate phosphoribosyltransferase (TrpD), thymidine phosphorylase. All these proteins can transfer a phosphorylated ribose substrate.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Uncharacterized protein YbiB	DNA binding binding organic cyclic compound binding nucleic acid binding pentosyltransferase activity glycosyltransferase activity transferase activity anthranilate phosphoribosyltransferase activity catalytic activity identical protein binding protein binding protein homodimerization activity protein dimerization activity RNA binding	oxoacid metabolic process cellular biosynthetic process organonitrogen compound biosynthetic process indole-containing compound metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process biogenic amine biosynthetic process organic substance metabolic process tryptophan biosynthetic process indole-containing compound biosynthetic process organic substance biosynthetic process indolalkylamine metabolic process oxoacid metabolic process cellular biosynthetic process organonitrogen compound biosynthetic process indole-containing compound metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process biogenic amine biosynthetic process organic substance metabolic process tryptophan biosynthetic process indole-containing compound biosynthetic process organic substance biosynthetic process indolalkylamine metabolic process small molecule metabolic process indolalkylamine biosynthetic process organonitrogen compound metabolic process aromatic amino acid family biosynthetic process aromatic amino acid metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process primary metabolic process tryptophan metabolic process organic cyclic compound metabolic process amine metabolic process amino acid biosynthetic process biosynthetic process amine biosynthetic process organic cyclic compound biosynthetic process metabolic process cellular process biogenic amine metabolic process alpha-amino acid biosynthetic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR035902	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain superfamily	Homologous Superfamily
A, B	IPR036320	Glycosyl transferase family 3, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR005940	Anthranilate phosphoribosyl transferase	Family
A, B	IPR017459	Glycosyl transferase family 3, N-terminal domain	Domain

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