Annotations: 2FSI

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e2fsiB1	A: jelly-roll	X: Double-stranded beta-helix	H: Double-stranded beta-helix	T: RhaA	F:	ECOD (20:10:01)
A		e2fsiA1	A: Four-helical up-and-down bundle	X: Glycosyl hydrolase domain	H: Glycosyl hydrolase domain	T: IQ	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	1.10.3060.10	Mainly Alpha	Orthogonal Bundle	Helical scaffold and wing domains of SecA	Helical scaffold and wing domains of SecA	CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01043	SecA preprotein cross-linking domain (SecA_PP_bind)	SecA preprotein cross-linking domain	The SecA ATPase is involved in the insertion and retraction of preproteins through the plasma membrane. This domain has been found to cross-link to preproteins, thought to indicate a role in preprotein binding. The pre-protein cross-linking domai ...	The SecA ATPase is involved in the insertion and retraction of preproteins through the plasma membrane. This domain has been found to cross-link to preproteins, thought to indicate a role in preprotein binding. The pre-protein cross-linking domain is comprised of two sub domains that are inserted within the ATPase domain [1].	Domain
A, B	PF07516	SecA Wing and Scaffold domain (SecA_SW)	SecA Wing and Scaffold domain	-	Family
A, B	PF21090	SecA P-loop domain (P-loop_SecA)	SecA P-loop domain	SecA is the preprotein translocase ATPase subunit and a superfamily 2 (SF2) RNA helicase [4]. This entry corresponds to the second P-loop domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Preprotein translocase secA subunit	protein binding binding preprotein binding protein transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity protein transmembrane transporter activity protein-transporting ATPase activity protein-exporting ATPase activity ATP-dependent activity macromolecule transmembrane transporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity protein binding binding preprotein binding protein transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity protein transmembrane transporter activity protein-transporting ATPase activity protein-exporting ATPase activity ATP-dependent activity macromolecule transmembrane transporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity ribonucleoprotein complex binding protein-containing complex binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding ribosome binding cation binding transition metal ion binding zinc ion binding metal ion binding identical protein binding	establishment of protein localization cellular localization transport intracellular protein transmembrane transport intracellular transport establishment of localization transmembrane transport localization protein transmembrane transport protein transport macromolecule localization establishment of localization in cell cellular process intracellular protein localization establishment of protein localization cellular localization transport intracellular protein transmembrane transport intracellular transport establishment of localization transmembrane transport localization protein transmembrane transport protein transport macromolecule localization establishment of localization in cell cellular process intracellular protein localization intracellular protein transport protein transport by the Sec complex establishment of protein localization to membrane protein targeting localization within membrane protein targeting to membrane protein import secretion establishment of protein localization to extracellular region export from cell protein secretion protein localization to extracellular region secretion by cell	cell periphery cellular anatomical structure plasma membrane membrane intracellular anatomical structure cytoplasm protein-containing complex cell envelope Sec protein transport complex intracellular protein-containing complex cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011130	SecA, preprotein cross-linking domain	Domain
A, B	IPR011116	SecA Wing/Scaffold	Domain
A, B	IPR014018	SecA motor DEAD	Domain
A, B	IPR020937	SecA conserved site	Conserved Site
A, B	IPR044722	SecA, C-terminal helicase domain	Domain
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B	IPR036670	SecA, preprotein cross-linking domain superfamily	Homologous Superfamily
A, B	IPR036266	SecA, Wing/Scaffold superfamily	Homologous Superfamily
A, B	IPR001650	Helicase, C-terminal domain-like	Domain
A, B	IPR000185	Protein translocase subunit SecA	Family
A, B	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A, B	IPR004027	SEC-C motif	Conserved Site
A, B	IPR011115	SecA DEAD-like, N-terminal	Domain

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.