Annotations: 2YKO

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	L1 transposable element RRM domain-like	8051106	4007201	SCOP2 (2022-06-29)
A	SCOP2 Family	L1 transposable element C-terminal dsRBD domain-like	8047047	4005420	SCOP2 (2022-06-29)
A	SCOP2 Family	L1 transposable element trimerization domain-like	8047046	4005419	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	RNA-binding domain RBD	8052166	3000110	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	L1ORF1p CTD-like	8052163	3002096	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	L1 transposable element trimerization domain-like	8052169	3002097	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	L1 transposable element trimerization domain-like	8052169	3002097	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	RNA-binding domain RBD	8052166	3000110	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	L1ORF1p CTD-like	8052163	3002096	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	L1 transposable element trimerization domain-like	8052169	3002097	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	RNA-binding domain RBD	8052166	3000110	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	L1ORF1p CTD-like	8052163	3002096	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)
A	PF02994	e2ykoA2	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF02994	ECOD (1.6)
A	PF17490	e2ykoA3	A: a+b two layers	X: dsRBD-like	H: C-terminal domain in LINE-1 ORF1p (From Topology)	T: C-terminal domain in LINE-1 ORF1p	F: PF17490	ECOD (1.6)
B	PF02994	e2ykoB2	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF02994	ECOD (1.6)
B	PF17490	e2ykoB3	A: a+b two layers	X: dsRBD-like	H: C-terminal domain in LINE-1 ORF1p (From Topology)	T: C-terminal domain in LINE-1 ORF1p	F: PF17490	ECOD (1.6)
C	PF02994	e2ykoC2	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF02994	ECOD (1.6)
C	PF17490	e2ykoC3	A: a+b two layers	X: dsRBD-like	H: C-terminal domain in LINE-1 ORF1p (From Topology)	T: C-terminal domain in LINE-1 ORF1p	F: PF17490	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.390	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	L1 transposable element, trimerization domain	CATH (4.3.0)
A	3.30.70.1820	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	L1 transposable element, RRM domain	CATH (4.3.0)
A	3.30.250.20	Alpha Beta	2-Layer Sandwich	Rec A Protein	domain 2	CATH (4.3.0)
B	1.20.5.390	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	L1 transposable element, trimerization domain	CATH (4.3.0)
B	3.30.70.1820	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	L1 transposable element, RRM domain	CATH (4.3.0)
B	3.30.250.20	Alpha Beta	2-Layer Sandwich	Rec A Protein	domain 2	CATH (4.3.0)
C	1.20.5.390	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	L1 transposable element, trimerization domain	CATH (4.3.0)
C	3.30.70.1820	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	L1 transposable element, RRM domain	CATH (4.3.0)
C	3.30.250.20	Alpha Beta	2-Layer Sandwich	Rec A Protein	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF17489	L1 transposable element trimerization domain (Tnp_22_trimer)	L1 transposable element trimerization domain	-	Coiled-coil
A, B, C	PF17490	L1 transposable element dsRBD-like domain (Tnp_22_dsRBD)	L1 transposable element dsRBD-like domain	This entry represents the double stranded RNA-binding-like domain.	Domain
A, B, C	PF02994	L1 transposable element RBD-like domain (Transposase_22)	L1 transposable element RBD-like domain	This entry represents the RBD-like domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	LINE-1 ORF1P	binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding RNA binding nucleic acid binding single-stranded RNA binding identical protein binding protein binding DNA binding single-stranded DNA binding	cellular process transposition retrotransposition	intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle cytoplasmic ribonucleoprotein granule cellular anatomical entity cytoplasm supramolecular complex non-membrane-bounded organelle ribonucleoprotein granule membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle cytoplasmic ribonucleoprotein granule cellular anatomical entity cytoplasm supramolecular complex non-membrane-bounded organelle ribonucleoprotein granule membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen organelle lumen nuclear lumen cytoplasmic stress granule protein-containing complex ribonucleoprotein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR035301	L1 transposable element, trimerization domain	Domain
A, B, C	IPR043636	L1 transposable element, RRM domain	Domain
A, B, C	IPR004244	Transposase, L1	Family
A, B, C	IPR042566	L1 transposable element, C-terminal domain	Homologous Superfamily
A, B, C	IPR035300	L1 transposable element, dsRBD-like domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.