4FIL

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4fila_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	automated matches	automated matches	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)
B	d4filb_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	automated matches	automated matches	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)
C	d4filc_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	automated matches	automated matches	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)
D	d4fild_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	automated matches	automated matches	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF01497	e4filA1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: PF01497	ECOD (1.6)
B	PF01497	e4filB1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: PF01497	ECOD (1.6)
C	PF01497	e4filC1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: PF01497	ECOD (1.6)
D	PF01497	e4filD1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: PF01497	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
B	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
C	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
D	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01497	Periplasmic binding protein (Peripla_BP_2)	Periplasmic binding protein	This is sensor domain found in bacterial periplasmic binding proteins, several of which are involved in iron and cobalamin transport [1,2,3]. Among its ligands are siderophores bacillibactin, enterobactin and iron(III)-hydroxamates (Matilla et. al., ...	This is sensor domain found in bacterial periplasmic binding proteins, several of which are involved in iron and cobalamin transport [1,2,3]. Among its ligands are siderophores bacillibactin, enterobactin and iron(III)-hydroxamates (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1 https://doi.org/10.1093/femsre/fuab043).	Domain