Annotations: 8DN7

The crystal structure of the Pisum sativum Toc75 POTRA domains in complex with fab ax9

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F [auth H]	Ion_trans	e8dn7H1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ion_trans	ECOD (v294.2)
E [auth B]	Ion_trans	e8dn7B1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ion_trans	ECOD (v294.2)
D [auth A]	Ion_trans	e8dn7A1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ion_trans	ECOD (v294.2)
C [auth D]	Ion_trans	e8dn7D1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ion_trans	ECOD (v294.2)
B [auth C]	Ion_trans	e8dn7C1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ion_trans	ECOD (v294.2)
A [auth E]	Ion_trans	e8dn7E1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ion_trans	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
E [auth B], F [auth H]	Light Chain	IGKV1	Kappa	protein toc75, chloroplastic	SAbDab (2026-05-08)
C [auth D], D [auth A]	Heavy Chain	IGHV3	-	protein toc75, chloroplastic	SAbDab (2026-05-08)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth B], F [auth H]	fabax9 Light Chain	-	-	-
C [auth D], D [auth A]	fabax9 Heavy Chain	-	-	-
A [auth E], B [auth C]	Protein TOC75, chloroplastic	macromolecule transmembrane transporter activity active transmembrane transporter activity protein transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity protein-transporting ATPase activity transmembrane protein transporter activity transporter activity transmembrane transporter activity ATP-dependent activity	cellular localization establishment of protein localization transport intracellular transport establishment of localization localization protein transport establishment of localization in cell macromolecule localization cellular process intracellular protein localization intracellular protein transport transmembrane transport establishment of protein localization to chloroplast cellular localization establishment of protein localization transport intracellular transport establishment of localization localization protein transport establishment of localization in cell macromolecule localization cellular process intracellular protein localization intracellular protein transport transmembrane transport establishment of protein localization to chloroplast protein localization to chloroplast establishment of protein localization to organelle protein transmembrane transport protein localization to organelle protein import into chloroplast stroma protein targeting protein targeting to chloroplast cellular component organization organelle organization plastid organization chloroplast organization cellular component organization or biogenesis	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid membrane chloroplast envelope organelle outer membrane intracellular membrane-bounded organelle plastid outer membrane chloroplast outer membrane intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membrane-bounded organelle plastid membrane intracellular anatomical structure plastid membrane chloroplast envelope organelle outer membrane intracellular membrane-bounded organelle plastid outer membrane chloroplast outer membrane intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle chloroplast membrane organelle outer membrane cytoplasm organelle membrane plastid envelope chloroplast

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth E], B [auth C]	IPR039910	Surface antigen D15-like	Family
A [auth E], B [auth C]	IPR057355	Toc75-like, second POTRA domain	Domain
A [auth E], B [auth C]	IPR005689	Chloroplast envelope protein translocase, IAP75	Family
A [auth E], B [auth C]	IPR057354	Toc75-like, POTRA domain	Domain
A [auth E], B [auth C]	IPR000184	Bacterial surface antigen (D15)	Domain

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