Annotations: 3CSL

Structure of the Serratia marcescens hemophore receptor HasR in complex with its hemophore HasA and heme

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
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)
D	d3csld1	Alpha and beta proteins (a+b)	Heme-binding protein A (HasA)	Heme-binding protein A (HasA)	Heme-binding protein A (HasA)	Heme-binding protein A (HasA)	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)
D	d3csld2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)
C	d3cslc1	Alpha and beta proteins (a+b)	Heme-binding protein A (HasA)	Heme-binding protein A (HasA)	Heme-binding protein A (HasA)	Heme-binding protein A (HasA)	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)
C	d3cslc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Heme-binding protein A (HasA)	8034957	3000777	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Heme-binding protein A (HasA)	8034957	3000777	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)
D	IL7	e3cslD1	A: alpha arrays	X: HTH	H: Nudix	T: Nudix	F: IL7	ECOD (v295)
C	Pkinase	e3cslC1	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleic acid-binding protein	F: Pkinase	ECOD (v295)
B	Tor_FN3_2nd	e3cslB1	A: alpha arrays	X: Carbon-nitrogen hydrolase-like	H: HTH	T: winged helix domain	F: Tor_FN3_2nd	ECOD (v295)
A	HetR_C	e3cslA1	A: alpha arrays	X: Repetitive alpha hairpins	H: Dimerization domain of heterocyst differentiation protein HetR	T: Dimerization domain of heterocyst differentiation protein HetR	F: HetR_C	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.30.1500.10	Alpha Beta	2-Layer Sandwich	Heme-binding Protein A	Chain: A	CATH (4.3.0)
C	3.30.1500.10	Alpha Beta	2-Layer Sandwich	Heme-binding Protein A	Chain: A	CATH (4.3.0)
B	2.170.130.10	Mainly Beta	Beta Complex	Ferric Hydroxamate Uptake Protein	Chain A, domain 1	CATH (4.3.0)
B	2.40.170.20	Mainly Beta	Beta Barrel	Maltoporin	Chain A	CATH (4.3.0)
A	2.170.130.10	Mainly Beta	Beta Complex	Ferric Hydroxamate Uptake Protein	Chain A, domain 1	CATH (4.3.0)
A	2.40.170.20	Mainly Beta	Beta Barrel	Maltoporin	Chain A	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	Hemophore HasA	cation binding ion binding binding metal ion binding small molecule binding	-	cellular anatomical structure extracellular region
A, B	HasR protein	heme transmembrane transporter activity transporter activity transmembrane transporter activity siderophore-iron transmembrane transporter activity iron chelate transmembrane transporter activity siderophore uptake transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding	siderophore transport transport iron ion transport establishment of localization metal ion transport siderophore transmembrane transport localization transition metal ion transport monoatomic ion transport monoatomic cation transport iron coordination entity transport	cell outer membrane cellular anatomical structure external encapsulating structure extracellular region membrane cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR010495	Haem-binding HasA	Family
C, D	IPR036912	Haem-binding HasA superfamily	Homologous Superfamily
A, B	IPR039426	TonB-dependent receptor-like	Family
A, B	IPR037066	TonB-dependent receptor, plug domain superfamily	Homologous Superfamily
A, B	IPR010949	TonB-dependent haemoglobin/transferrin/lactoferrin receptor	Family
A, B	IPR011276	TonB-dependent haem/haemoglobin receptor	Family
A, B	IPR036942	TonB-dependent receptor-like, beta-barrel domain superfamily	Homologous Superfamily
A, B	IPR012910	TonB-dependent receptor, plug domain	Domain
A, B	IPR011662	Secretin/TonB, short N-terminal domain	Domain
A, B	IPR000531	TonB-dependent receptor-like, beta-barrel	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Beta-barrel transmembrane	Ligand-gated protein channels (n=22,S=24)	Outer Membrane Receptor (OMR)

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Beta-Barrel Membrane Proteins: Monomeric/Dimeric	HasR heme-uptake receptor in complex with HasA hemophore and heme

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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.