Annotations: 1LDD

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d1lddd_	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	SCF ubiquitin ligase complex WHB domain	Anaphase promoting complex (APC)	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
C	d1lddc_	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	SCF ubiquitin ligase complex WHB domain	Anaphase promoting complex (APC)	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d1lddb_	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	SCF ubiquitin ligase complex WHB domain	Anaphase promoting complex (APC)	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d1ldda_	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	SCF ubiquitin ligase complex WHB domain	Anaphase promoting complex (APC)	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Winged helix DNA-binding domain	8057694	3000034	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Winged helix DNA-binding domain	8057694	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8057694	3000034	SCOP2B (2022-06-29)
A	SCOP2 Family	SCF complex WHB domain-like	8003466	4000322	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Winged helix DNA-binding domain	8057694	3000034	SCOP2 (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		e1lddD1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Fe_dep_repress	F:	ECOD (20:10:01)
C		e1lddC1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Fe_dep_repress	F:	ECOD (20:10:01)
B		e1lddB1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Fe_dep_repress	F:	ECOD (20:10:01)
A		e1lddA1	A: HTH	X: HTH	H: winged helix domain	T: ANAPC2	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
C	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF08672	Anaphase promoting complex (APC) subunit 2 (ANAPC2)	Anaphase promoting complex (APC) subunit 2	The anaphase promoting complex or cyclosome (APC2) is an E3 ubiquitin ligase which is part of the SCF family of ubiquitin ligases. Ubiquitin ligases catalyse the transfer of ubiquitin from the ubiquitin conjugating enzyme (E2), to the substrate prot ...	The anaphase promoting complex or cyclosome (APC2) is an E3 ubiquitin ligase which is part of the SCF family of ubiquitin ligases. Ubiquitin ligases catalyse the transfer of ubiquitin from the ubiquitin conjugating enzyme (E2), to the substrate protein.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Anaphase Promoting Complex	ubiquitin protein ligase binding protein binding binding ubiquitin-like protein ligase binding enzyme binding	regulation of mitotic cell cycle regulation of biological process regulation of cellular process biological regulation cellular process cell cycle regulation of cell cycle mitotic cell cycle regulation of chromosome segregation regulation of cellular component organization cell cycle phase transition cellular component organization cellular component organization or biogenesis chromosome segregation regulation of mitotic cell cycle regulation of biological process regulation of cellular process biological regulation cellular process cell cycle regulation of cell cycle mitotic cell cycle regulation of chromosome segregation regulation of cellular component organization cell cycle phase transition cellular component organization cellular component organization or biogenesis chromosome segregation cell cycle process regulation of cell cycle process chromosome organization sister chromatid segregation regulation of chromosome organization regulation of organelle organization organelle organization mitotic cell cycle process regulation of sister chromatid segregation nuclear chromosome segregation metaphase/anaphase transition of mitotic cell cycle metaphase/anaphase transition of cell cycle mitotic cell cycle phase transition catabolic process primary metabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process anaphase-promoting complex-dependent catabolic process ubiquitin-dependent protein catabolic process metabolic process protein metabolic process macromolecule metabolic process protein K11-linked ubiquitination protein polyubiquitination protein ubiquitination macromolecule modification post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal mitotic nuclear division organelle fission exit from mitosis nuclear division regulation of meiotic cell cycle sexual reproduction regulation of reproductive process reproductive process meiotic cell cycle positive regulation of organelle organization regulation of mitotic cytokinetic process regulation of mitotic actomyosin contractile ring contraction mitotic cytokinetic process regulation of mitotic cytokinesis positive regulation of cytokinesis cortical actin cytoskeleton organization actin filament-based process regulation of cytokinesis actomyosin structure organization cortical cytoskeleton organization positive regulation of cytoskeleton organization cytokinesis regulation of cytokinetic process actomyosin contractile ring contraction cell division regulation of cytoskeleton organization positive regulation of cellular component organization positive regulation of cell division cytoskeleton-dependent cytokinesis positive regulation of mitotic cytokinesis positive regulation of biological process mitotic cytokinesis regulation of actomyosin contractile ring contraction mitotic actomyosin contractile ring contraction regulation of cell division contractile ring contraction positive regulation of mitotic cytokinetic process positive regulation of cell cycle process positive regulation of cellular process actin cytoskeleton organization positive regulation of cell cycle cytokinetic process positive regulation of mitotic actomyosin contractile ring contraction actomyosin contractile ring organization cytoskeleton organization	membrane-bounded organelle protein-containing complex intracellular anatomical structure ubiquitin ligase complex catalytic complex nucleus nuclear protein-containing complex transferase complex intracellular membrane-bounded organelle anaphase-promoting complex intracellular organelle cullin-RING ubiquitin ligase complex cellular anatomical structure nuclear ubiquitin ligase complex membrane-bounded organelle protein-containing complex intracellular anatomical structure ubiquitin ligase complex catalytic complex nucleus nuclear protein-containing complex transferase complex intracellular membrane-bounded organelle anaphase-promoting complex intracellular organelle cullin-RING ubiquitin ligase complex cellular anatomical structure nuclear ubiquitin ligase complex organelle intracellular protein-containing complex cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR014786	Anaphase-promoting complex subunit 2, C-terminal	Domain
A, B, C, D	IPR016158	Cullin homology domain	Domain
A, B, C, D	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR059120	Cullin-like, alpha+beta domain	Domain
A, B, C, D	IPR036317	Cullin homology domain superfamily	Homologous Superfamily
A, B, C, D	IPR044554	Anaphase-promoting complex subunit 2	Family
A, B, C, D	IPR057975	Anaphase-promoting complex subunit 2, TPR repeats	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.