Annotations: 6ZY9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth D]	MlaD	e6zy9D1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Mammalian cell entry (MCE) domain	F: MlaD	ECOD (1.6)
G [auth B]	STAS	e6zy9B1	A: a/b three-layered sandwiches	X: SpoIIaa-like (From Topology)	H: SpoIIaa-like (From Topology)	T: SpoIIaa-like	F: STAS	ECOD (1.6)
H [auth C]	STAS	e6zy9C1	A: a/b three-layered sandwiches	X: SpoIIaa-like (From Topology)	H: SpoIIaa-like (From Topology)	T: SpoIIaa-like	F: STAS	ECOD (1.6)
I [auth F]	ABC_tran	e6zy9F1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: ABC_tran	ECOD (1.6)
J [auth G]	ABC_tran	e6zy9G1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: ABC_tran	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H [auth C]	3.30.750.24	Alpha Beta	2-Layer Sandwich	Transcription Regulator spoIIAA	STAS domain	CATH (utative)
I [auth F]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (utative)
J [auth G]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth D], C [auth I], D [auth J], E [auth K], A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	PF02470	MlaD protein (MlaD)	MlaD protein	This family of proteins contains MlaD, which is a component of the Mla pathway, an ABC transport system that functions to maintain the asymmetry of the outer membrane [1]. The family also contains the mce (mammalian cell entry) proteins from Mycobact ...	This family of proteins contains MlaD, which is a component of the Mla pathway, an ABC transport system that functions to maintain the asymmetry of the outer membrane [1]. The family also contains the mce (mammalian cell entry) proteins from Mycobacterium tuberculosis. The archetype (Rv0169), was isolated as being necessary for colonisation of, and survival within, the macrophage [2]. This family contains proteins of unknown function from other bacteria.	Domain
G [auth B], H [auth C]	PF13466	STAS domain (STAS_2)	STAS domain	The STAS (after Sulphate Transporter and AntiSigma factor antagonist) domain is found in the C-terminal region of Sulphate transporters and bacterial antisigma factor antagonists. It has been suggested that this domain may have a general NTP binding ...	The STAS (after Sulphate Transporter and AntiSigma factor antagonist) domain is found in the C-terminal region of Sulphate transporters and bacterial antisigma factor antagonists. It has been suggested that this domain may have a general NTP binding function [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth D], C [auth I], D [auth J], E [auth K], A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	YrbD protein	phospholipid transfer activity lipid transporter activity lipid transfer activity transporter activity phospholipid transporter activity binding phospholipid binding lipid binding	localization transport macromolecule localization phospholipid transport lipid localization lipid transport establishment of localization organophosphate ester transport membrane organization intermembrane lipid transfer cellular component organization intermembrane phospholipid transfer cellular process cellular component organization or biogenesis	cell periphery cellular anatomical structure plasma membrane membrane phospholipid-translocating ATPase complex protein-containing complex transporter complex
G [auth B], H [auth C]	ABC transporter maintaining OM lipid asymmetry, cytoplasmic STAS component	phospholipid transfer activity lipid transporter activity lipid transfer activity transporter activity phospholipid transporter activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process localization transport macromolecule localization phospholipid transport lipid localization lipid transport establishment of localization organophosphate ester transport cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process localization transport macromolecule localization phospholipid transport lipid localization lipid transport establishment of localization organophosphate ester transport response to chemical response to antibiotic membrane organization intermembrane lipid transfer cellular component organization intermembrane phospholipid transfer cellular component organization or biogenesis	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol phospholipid-translocating ATPase complex protein-containing complex transporter complex membrane
I [auth F], J [auth G]	Toluene tolerance protein Ttg2A	-	-	-
K [auth E], L [auth H]	Uncharacterized protein	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth D], C [auth I], D [auth J], E [auth K], A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	IPR003399	Mce/MlaD	Domain
A, B [auth D], C [auth I], D [auth J], E [auth K], A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	IPR052336	MlaD Inter-membrane Phospholipid Transporter	Family
A, B [auth D], C [auth I], D [auth J], E [auth K], A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	IPR030970	Probable phospholipid ABC transporter-binding protein MlaD	Family
G [auth B], H [auth C]	IPR036513	STAS domain superfamily	Homologous Superfamily
G [auth B], H [auth C]	IPR002645	STAS domain	Domain
G [auth B], H [auth C]	IPR049743	Intermembrane phospholipid transport system binding protein MlaB	Family
G [auth B], H [auth C]	IPR052746	MlaB ABC Transporter Complex Protein	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B [auth D], C [auth I], D [auth J], E [auth K] A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	OPM	Transmembrane	Alpha-helical polytopic	ABC transporters	MlaD/MlaE transporter

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B [auth D], C [auth I], D [auth J], E [auth K] A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B [auth D], C [auth I], D [auth J], E [auth K] A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B [auth D], C [auth I], D [auth J], E [auth K] A, B [auth D], C [auth I], D [auth J], E [auth K], F [auth L]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Mammalian Cell Entry (MCE) Proteins	MlaFEDB phospholipid transport system, apo protein

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.