Annotations: 6LID

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PF13520	e6lidB1	A: alpha complex topology	X: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	T: Sodium:neurotransmitter symporter family (SNF)-like	F: PF13520	ECOD (1.6)
D	PF13520	e6lidD1	A: alpha complex topology	X: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	T: Sodium:neurotransmitter symporter family (SNF)-like	F: PF13520	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF00128	Alpha amylase, catalytic domain (Alpha-amylase)	Alpha amylase, catalytic domain	Alpha amylase is classified as family 13 of the glycosyl hydrolases. The structure is an 8 stranded alpha/beta barrel containing the active site, interrupted by a ~70 a.a. calcium-binding domain protruding between beta strand 3 and alpha helix 3, a ...	Alpha amylase is classified as family 13 of the glycosyl hydrolases. The structure is an 8 stranded alpha/beta barrel containing the active site, interrupted by a ~70 a.a. calcium-binding domain protruding between beta strand 3 and alpha helix 3, and a carboxyl-terminal Greek key beta-barrel domain.	Domain
B, D	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
A, C	Neutral and basic amino acid transport protein rBAT	amino acid transmembrane transporter activity transporter activity basic amino acid transmembrane transporter activity transmembrane transporter activity protein-containing complex binding binding protein heterodimerization activity protein binding protein dimerization activity L-amino acid transmembrane transporter activity sulfur amino acid transmembrane transporter activity sulfur compound transmembrane transporter activity carboxylic acid transmembrane transporter activity modified amino acid transmembrane transporter activity amino acid transmembrane transporter activity transporter activity basic amino acid transmembrane transporter activity transmembrane transporter activity protein-containing complex binding binding protein heterodimerization activity protein binding protein dimerization activity L-amino acid transmembrane transporter activity sulfur amino acid transmembrane transporter activity sulfur compound transmembrane transporter activity carboxylic acid transmembrane transporter activity modified amino acid transmembrane transporter activity L-cystine transmembrane transporter activity organic acid transmembrane transporter activity organic anion transmembrane transporter activity	nitrogen compound transport organic anion transport carboxylic acid transport transport organic substance transport L-cystine transport neutral amino acid transport L-amino acid transport establishment of localization organic acid transport amino acid transport localization sulfur amino acid transport sulfur compound transport nitrogen compound transport organic anion transport carboxylic acid transport transport organic substance transport L-cystine transport neutral amino acid transport L-amino acid transport establishment of localization organic acid transport amino acid transport localization sulfur amino acid transport sulfur compound transport modified amino acid transport organic acid transmembrane transport carboxylic acid transmembrane transport amino acid transmembrane transport L-glutamate import transmembrane transport acidic amino acid transport dicarboxylic acid transport L-alpha-amino acid transmembrane transport cellular process L-glutamate transmembrane transport organic substance metabolic process biosynthetic process cellular biosynthetic process cellular metabolic process organic substance biosynthetic process metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process carbohydrate metabolic process primary metabolic process basic amino acid transport aspartate transmembrane transport C4-dicarboxylate transport	membrane cellular anatomical entity cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space membrane cellular anatomical entity cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle brush border membrane cluster of actin-based cell projections plasma membrane bounded cell projection brush border cell projection cell projection membrane vacuolar membrane intracellular anatomical structure vacuole intracellular membrane-bounded organelle intracellular organelle bounding membrane of organelle cytoplasm organelle membrane
B, D	b(0,+)-type amino acid transporter 1	antiporter activity amino acid transmembrane transporter activity active transmembrane transporter activity neutral L-amino acid transmembrane transporter activity broad specificity neutral L-amino acid:basic L-amino acid antiporter activity transporter activity basic amino acid transmembrane transporter activity transmembrane transporter activity secondary active transmembrane transporter activity binding antigen binding peptide antigen binding peptide binding protein heterodimerization activity antiporter activity amino acid transmembrane transporter activity active transmembrane transporter activity neutral L-amino acid transmembrane transporter activity broad specificity neutral L-amino acid:basic L-amino acid antiporter activity transporter activity basic amino acid transmembrane transporter activity transmembrane transporter activity secondary active transmembrane transporter activity binding antigen binding peptide antigen binding peptide binding protein heterodimerization activity protein binding protein dimerization activity L-amino acid transmembrane transporter activity sulfur amino acid transmembrane transporter activity sulfur compound transmembrane transporter activity carboxylic acid transmembrane transporter activity modified amino acid transmembrane transporter activity L-cystine transmembrane transporter activity organic acid transmembrane transporter activity organic anion transmembrane transporter activity	nitrogen compound transport organic anion transport carboxylic acid transport transport organic substance transport L-cystine transport neutral amino acid transport L-amino acid transport establishment of localization organic acid transport amino acid transport localization sulfur amino acid transport sulfur compound transport nitrogen compound transport organic anion transport carboxylic acid transport transport organic substance transport L-cystine transport neutral amino acid transport L-amino acid transport establishment of localization organic acid transport amino acid transport localization sulfur amino acid transport sulfur compound transport modified amino acid transport cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis transmembrane transport amino acid transmembrane transport	cell periphery apical part of cell membrane plasma membrane plasma membrane region cellular anatomical entity apical plasma membrane brush border membrane cluster of actin-based cell projections plasma membrane bounded cell projection brush border cell projection cell projection membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR045857	Oligo-1,6-glucosidase, domain 2	Homologous Superfamily
A, C	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, C	IPR006047	Glycosyl hydrolase, family 13, catalytic domain	Domain
A, C	IPR013780	Glycosyl hydrolase, all-beta	Homologous Superfamily
B, D	IPR002293	Amino acid/polyamine transporter I	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, C	Pharos: Q07837	cystinuria hypotonia-cystinuria syndrome 2p21 microdeletion syndrome osteosarcoma psoriasis Barrett esophagus cystinuria type B facioscapulohumeral muscular dystrophy inborn errors of metabolism malignant glioma nephrosclerosis pancreatic intraductal papillary-mucinous carcinoma ulcerative colitis astrocytic tumor Crohn disease cystinuria hypotonia-cystinuria syndrome 2p21 microdeletion syndrome osteosarcoma psoriasis Barrett esophagus cystinuria type B facioscapulohumeral muscular dystrophy inborn errors of metabolism malignant glioma nephrosclerosis pancreatic intraductal papillary-mucinous carcinoma ulcerative colitis astrocytic tumor Crohn disease Cystinuria, Type A glioblastoma large cell medulloblastoma malignant pancreatic neoplasm oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atypical teratoid rhabdoid tumor malignant ependymoma medulloblastoma
B, D	Pharos: P82251	cystinuria kidney disease Cystinuria, Type A-B nephrosclerosis cystinuria type B inborn errors of metabolism

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier (SLC) Transporter Superfamily	SLC7A9 amino acid transporter b^0,+AT-rBAT complex with bound arginine

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.