Annotations: 4WWU

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E	SCOP2B Superfamily	NTF2-like	8034031	3000472	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	NTF2-like	8034031	3000472	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	NTF2-like	8034031	3000472	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	NTF2-like	8034031	3000472	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	NTF2-like	8034032	3000472	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	NTF2-like	8034032	3000472	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	NTF2-like	8034032	3000472	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	NTF2-like	8034032	3000472	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	PF18444	e4wwuD1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF18444	ECOD (1.6)
E	F_UNCLASSIFIED	e4wwuE2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: F_UNCLASSIFIED	ECOD (1.6)
E	PF22602	e4wwuE1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF22602	ECOD (1.6)
A	PF18444	e4wwuA1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF18444	ECOD (1.6)
B	F_UNCLASSIFIED	e4wwuB2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF22602	e4wwuB1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF22602	ECOD (1.6)
G	PF18444	e4wwuG1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF18444	ECOD (1.6)
H	F_UNCLASSIFIED	e4wwuH2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: F_UNCLASSIFIED	ECOD (1.6)
H	PF22602	e4wwuH1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF22602	ECOD (1.6)
J	PF18444	e4wwuJ1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: PF18444	ECOD (1.6)
K	F_UNCLASSIFIED	e4wwuK1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: F_UNCLASSIFIED	ECOD (1.6)
K	PF22602	e4wwuK2	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF22602	ECOD (1.6)
C	PF10429	e4wwuC1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF10429	ECOD (1.6)
F	PF10429	e4wwuF1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF10429	ECOD (1.6)
I	PF10429	e4wwuI1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF10429	ECOD (1.6)
L	PF10429	e4wwuL1	A: a+b two layers	X: Cystatin-like	H: NTF2-like (From Topology)	T: NTF2-like	F: PF10429	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)
E	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
B	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)
B	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
H	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)
H	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
K	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)
K	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
C	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
F	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
I	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
L	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, D, E, G A, B, D, E, G, H, J, K	PF18444	RNA recognition motif (RRM_9)	RNA recognition motif	The Mex67-Mtr2 complex (TAP-p15 or NXF1-NXT1 in metazoans) is the principal mRNA export factor in Saccharomyces cerevisiae. Mex67 is a member of the NXF family of proteins and has conserved homologs through eukaryotes from yeast to humans. Although s ...	The Mex67-Mtr2 complex (TAP-p15 or NXF1-NXT1 in metazoans) is the principal mRNA export factor in Saccharomyces cerevisiae. Mex67 is a member of the NXF family of proteins and has conserved homologs through eukaryotes from yeast to humans. Although sequence conservation is poor between S. cerevisiae Mex67 and Homo sapiens NXF1, they do show functional complementarity. Mex67 and TAP/NXF1 are modular proteins that contain four structural domains: an N-terminal RNA recognition motif (RRM), a leucine rich repeat (LRR) domain, a nuclear transport factor 2-like domain (NTF2L) and an ubiquitin-associated domain (UBA). This entry describes the N-terminal RNA recognition motif (RRM) found in Mex67 proteins [1].	Domain
C, F, I, L	PF10429	Nuclear pore RNA shuttling protein Mtr2 (Mtr2)	Nuclear pore RNA shuttling protein Mtr2	Mtr2 is a monomeric, dual-action, RNA-shuttle protein found in yeasts. Transport across the nuclear-cytoplasmic membrane is via the macro-molecular membrane-spanning nuclear pore complex, NPC. The pore is lined by a subset of NPC members called nucle ...	Mtr2 is a monomeric, dual-action, RNA-shuttle protein found in yeasts. Transport across the nuclear-cytoplasmic membrane is via the macro-molecular membrane-spanning nuclear pore complex, NPC. The pore is lined by a subset of NPC members called nucleoporins that present FG (Phe-Gly) receptors, characteristically GLFG and FXFG motifs, for shuttling RNAs and proteins. RNA cargo is bound to soluble transport proteins (nuclear export factors) such as Mex67 in yeasts, and TAP in metazoa, which pass along the pore by binding to successive FG receptors. Mtr2 when bound to Mex67 maximises this FG-binding. Mtr2 also acts independently of Mex67 in transporting the large ribosomal RNA subunit through the pore [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, D, E, G A, B, D, E, G, H, J, K	mRNA export factor MEX67	wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding snRNA binding U1 snRNA binding U6 snRNA binding wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding snRNA binding U1 snRNA binding U6 snRNA binding U5 snRNA binding U4 snRNA binding U2 snRNA binding	cellular localization nitrogen compound transport nucleocytoplasmic transport transport cellular biosynthetic process nuclear transport mRNA transport localization organic substance metabolic process mRNA export from nucleus establishment of localization in cell organic substance biosynthetic process RNA localization nuclear export cellular localization nitrogen compound transport nucleocytoplasmic transport transport cellular biosynthetic process nuclear transport mRNA transport localization organic substance metabolic process mRNA export from nucleus establishment of localization in cell organic substance biosynthetic process RNA localization nuclear export nucleobase-containing compound transport RNA transport organic substance transport cellular metabolic process nucleic acid transport poly(A)+ mRNA export from nucleus intracellular transport gene expression establishment of localization macromolecule biosynthetic process RNA export from nucleus establishment of RNA localization biosynthetic process macromolecule localization cellular process metabolic process macromolecule metabolic process establishment of organelle localization ribonucleoprotein complex biogenesis ribosomal subunit export from nucleus protein-containing complex localization cellular component biogenesis ribosome biogenesis ribosomal small subunit export from nucleus organelle localization cellular component organization or biogenesis ribosome localization ribosomal large subunit export from nucleus	membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope organelle nuclear envelope nuclear pore nuclear RNA export factor complex membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope organelle nuclear envelope nuclear pore nuclear RNA export factor complex cytoplasm
C, F, I, L	mRNA transport regulator MTR2	-	cellular localization nitrogen compound transport nucleocytoplasmic transport transport cellular biosynthetic process nuclear transport mRNA transport localization organic substance metabolic process mRNA export from nucleus establishment of localization in cell organic substance biosynthetic process RNA localization nuclear export cellular localization nitrogen compound transport nucleocytoplasmic transport transport cellular biosynthetic process nuclear transport mRNA transport localization organic substance metabolic process mRNA export from nucleus establishment of localization in cell organic substance biosynthetic process RNA localization nuclear export nucleobase-containing compound transport RNA transport organic substance transport cellular metabolic process nucleic acid transport poly(A)+ mRNA export from nucleus intracellular transport gene expression establishment of localization macromolecule biosynthetic process RNA export from nucleus establishment of RNA localization biosynthetic process macromolecule localization cellular process metabolic process macromolecule metabolic process establishment of organelle localization ribonucleoprotein complex biogenesis ribosomal subunit export from nucleus ribosomal large subunit export from nucleus protein-containing complex localization cellular component biogenesis ribosome biogenesis organelle localization cellular component organization or biogenesis ribosome localization ribosomal small subunit export from nucleus	membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure nuclear RNA export factor complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity endomembrane system organelle envelope nuclear envelope nuclear pore membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure nuclear RNA export factor complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity endomembrane system organelle envelope nuclear envelope nuclear pore nuclear pore central transport channel

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, D, E, G A, B, D, E, G, H, J, K	IPR030217	Nuclear RNA export factor	Family
A, B, D, E, G A, B, D, E, G, H, J, K	IPR032710	NTF2-like domain superfamily	Homologous Superfamily
A, B, D, E, G A, B, D, E, G, H, J, K	IPR001611	Leucine-rich repeat	Repeat
A, B, D, E, G A, B, D, E, G, H, J, K	IPR018222	Nuclear transport factor 2, eukaryote	Domain
A, B, D, E, G A, B, D, E, G, H, J, K	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
A, B, D, E, G A, B, D, E, G, H, J, K	IPR040736	Mex67, RNA recognition motif	Domain
A, B, D, E, G A, B, D, E, G, H, J, K	IPR009060	UBA-like superfamily	Homologous Superfamily
A, B, D, E, G A, B, D, E, G, H, J, K	IPR005637	TAP C-terminal (TAP-C) domain	Domain
C, F, I, L	IPR032710	NTF2-like domain superfamily	Homologous Superfamily
C, F, I, L	IPR045875	Nuclear transport factor 2	Family
C, F, I, L	IPR019488	Nuclear pore RNA shuttling protein Mtr2	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 R01GM133198.