Annotations: 3EF1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	A2M_BRD	e3ef1A2	A: a/b three-layered sandwiches	X: Transmembrane heme-binding four-helical bundle	H: Anticodon-binding domain of Class II aaRS	T: Anticodon-binding domain of Class II aaRS	F: A2M_BRD	ECOD (v294.1)
A	E1_FCCH	e3ef1A3	A: a/b three-layered sandwiches	X: Transmembrane heme-binding four-helical bundle	H: Anticodon-binding domain of Class II aaRS	T: Anticodon-binding domain of Class II aaRS	F: E1_FCCH	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1000	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HAD superfamily/HAD-like	CATH (4.3.0)
A	1.10.287.10	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	S15/NS1, RNA-binding	CATH (4.3.0)
A	3.40.50.10190	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	BRCT domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03031	NLI interacting factor-like phosphatase (NIF)	NLI interacting factor-like phosphatase	-	Family
A	PF12738	twin BRCT domain (PTCB-BRCT)	twin BRCT domain	This is a BRCT domain that appears in duplicate in most member sequences. BRCT domains are peptide- and phosphopeptide-binding modules. BRCT domains are present in a number of proteins involved in DNA checkpoint controls and DNA repair [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RNA polymerase II subunit A C-terminal domain phosphatase	phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity RNA polymerase II CTD heptapeptide repeat modifying activity catalytic activity, acting on a protein RNA polymerase II CTD heptapeptide repeat phosphatase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity cation binding ion binding binding metal ion binding phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity RNA polymerase II CTD heptapeptide repeat modifying activity catalytic activity, acting on a protein RNA polymerase II CTD heptapeptide repeat phosphatase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	regulation of biological process signaling biological regulation	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004274	FCP1 homology domain	Domain
A	IPR040078	CTD small RNA polymerase II polypeptide A phosphatase-like	Family
A	IPR001357	BRCT domain	Domain
A	IPR011947	FCP1-like phosphatase, phosphatase domain	Domain
A	IPR036412	HAD-like superfamily	Homologous Superfamily
A	IPR023214	HAD superfamily	Homologous Superfamily
A	IPR036420	BRCT domain superfamily	Homologous Superfamily
A	IPR039189	CTD phosphatase Fcp1	Family

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.