3GI8 | pdb_00003gi8

Crystal Structure of ApcT K158A Transporter Bound to 7F11 Monoclonal Fab Fragment

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth L]	d3gi8l2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth L]	d3gi8l1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth C]	d3gi8c_	Membrane and cell surface proteins and peptides	SNF-like	SNF-like	Amino acid antiporter-like	Amino acid, polyamine, and organocation (APC) transporter ApcT	Methanococcus jannaschii (Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth C]	SCOP2B Superfamily	SNF-like	8092928	3001654	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth H]		e3gi8H1	A: Spectrin repeat-like	X: SH3	H: SH3	T: Esterase	F:	ECOD (20:10:01)
B [auth L]		e3gi8L1	A: Spectrin repeat-like	X: SH3	H: SH3	T: Esterase	F:	ECOD (20:10:01)
A [auth C]		e3gi8C1	A: Spectrin repeat-like	X: SH3	H: SH3	T: Esterase	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth C]	1.20.1740.10	Mainly Alpha	Up-down Bundle	Amino acid/polyamine transporter I	Amino acid/polyamine transporter I	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
C [auth H]	7F11 mAb, anti-ApcT	VH-CH1	Mus musculus (house mouse)	IGHV1-6902, IGHJ401, IGHG2B*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2B_KAPPA	IMGT (202609-0)
B [auth L]	7F11 mAb, anti-ApcT	L-KAPPA	Mus musculus (house mouse)	IGKV8-2401, IGKJ102, IGKJ201, IGKC01, IGKC*02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2B_KAPPA	IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth H]	Heavy Chain	IGHV1	-	uncharacterized protein mj0609	SAbDab (2026-03-13)
B [auth L]	Light Chain	IGKV8	Kappa	uncharacterized protein mj0609	SAbDab (2026-03-13)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C]	PF13520	Amino acid permease (AA_permease_2)	Amino acid permease	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth H]	7F11 Anti-ApcT Monoclonal Fab Heavy Chain	-	-	-
B [auth L]	7F11 Anti-ApcT Monoclonal Fab Light Chain	-	-	-
A [auth C]	Uncharacterized protein MJ0609	transporter activity transmembrane transporter activity	-	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR002293	Amino acid/polyamine transporter I	Family
A [auth C]	IPR050367	Amino acid-polyamine-organocation superfamily	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth C]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Amino Acid/Polyamine/Organocation (APC) Superfamily	apo ApcT Na⁺-independent Amino Acid Transporter

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.