Annotations: 8PNU

Cryo-EM structure of styrene oxide isomerase bound to benzylamine inhibitor

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth J]	ubiquitin	e8pnuJ01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: ubiquitin	ECOD (v295)
E [auth K]	DNA_topoisoIV	e8pnuK1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
F [auth L]	DNA_topoisoIV	e8pnuL1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
J [auth D]	DNA_topoisoIV	e8pnuD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
K [auth E]	DNA_topoisoIV	e8pnuE1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
L [auth F]	DNA_topoisoIV	e8pnuF1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth J], E [auth K], F [auth L], J [auth D], K [auth E], D [auth J], E [auth K], F [auth L], J [auth D], K [auth E], L [auth F]	Heavy Chain	IGHV1	-	styrene oxide isomerase	SAbDab (2026-06-26)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], I [auth C]	Styrene oxide isomerase	styrene-oxide isomerase activity isomerase activity intramolecular oxidoreductase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	cellular response to stimulus catabolic process benzene-containing compound metabolic process response to stimulus hydrocarbon catabolic process cellular response to xenobiotic stimulus xenobiotic catabolic process hydrocarbon metabolic process xenobiotic metabolic process response to xenobiotic stimulus cellular response to chemical stimulus response to chemical olefinic compound catabolic process olefinic compound metabolic process cellular response to stimulus catabolic process benzene-containing compound metabolic process response to stimulus hydrocarbon catabolic process cellular response to xenobiotic stimulus xenobiotic catabolic process hydrocarbon metabolic process xenobiotic metabolic process response to xenobiotic stimulus cellular response to chemical stimulus response to chemical olefinic compound catabolic process olefinic compound metabolic process metabolic process cellular process styrene catabolic process styrene metabolic process	-
D [auth J], E [auth K], F [auth L], J [auth D], K [auth E], D [auth J], E [auth K], F [auth L], J [auth D], K [auth E], L [auth F]	Nanobody	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], I [auth C]	IPR054803	Styrene-oxide isomerase StyC	Family
A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], I [auth C]	IPR058965	Styrene oxide isomerase/Hydroxylaminobenzene mutase-like	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth G], B [auth H], C [auth I], G [auth A], H [auth B] A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], I [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth G], B [auth H], C [auth I], G [auth A], H [auth B] A [auth G], B [auth H], C [auth I], G [auth A], H [auth B], I [auth C]	MemProtMD	Annotated as membrane protein by MemProtMD

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.