Annotations: 8PNV

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
L	DNA_topoisoIV	e8pnvL1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
K	DNA_topoisoIV	e8pnvK1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
J	DNA_topoisoIV	e8pnvJ1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
F	DNA_topoisoIV	e8pnvF1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
E	DNA_topoisoIV	e8pnvE1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)
D	DNA_topoisoIV	e8pnvD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: DNA_topoisoIV	ECOD (v295)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D, E, F, J, K D, E, F, J, K, L	Heavy Chain	IGHV1	-	styrene oxide isomerase	SAbDab (2026-07-10)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, E, F, J, K D, E, F, J, K, L	Nanobody	-	-	-
A, B, C, G, H A, B, C, G, H, I	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	-

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