4IVE | pdb_00004ive

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d4ived_	All alpha proteins	PABP domain-like	PABC (PABP) domain	PABC (PABP) domain	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d4ivec_	All alpha proteins	PABP domain-like	PABC (PABP) domain	PABC (PABP) domain	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4iveb_	All alpha proteins	PABP domain-like	PABC (PABP) domain	PABC (PABP) domain	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4ivea_	All alpha proteins	PABP domain-like	PABC (PABP) domain	PABC (PABP) domain	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	PABC (PABP) domain	8068214	3000200	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PABC (PABP) domain	8068214	3000200	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PABC (PABP) domain	8068214	3000200	SCOP2B (2022-06-29)
A	SCOP2 Family	PABC (PABP) domain	8068213	4003044	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PABC (PABP) domain	8068214	3000200	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	Rrf2	e4iveD1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (v294.2)
C	Rrf2	e4iveC1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (v294.2)
B	Ribosomal_S7	e4iveB1	A: beta barrels	X: Ribonuclease H-like	H: Ribonuclease H-like	T: Ribonuclease H-like	F: Ribosomal_S7	ECOD (v294.2)
A	Rrf2	e4iveA1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (v294.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.10.1900.10	Mainly Alpha	Orthogonal Bundle	c-terminal domain of poly(a) binding protein	c-terminal domain of poly(a) binding protein	CATH (4.3.0)
C	1.10.1900.10	Mainly Alpha	Orthogonal Bundle	c-terminal domain of poly(a) binding protein	c-terminal domain of poly(a) binding protein	CATH (4.3.0)
B	1.10.1900.10	Mainly Alpha	Orthogonal Bundle	c-terminal domain of poly(a) binding protein	c-terminal domain of poly(a) binding protein	CATH (4.3.0)
A	1.10.1900.10	Mainly Alpha	Orthogonal Bundle	c-terminal domain of poly(a) binding protein	c-terminal domain of poly(a) binding protein	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00658	MLLE domain (MLLE)	MLLE domain	The MLLE domain, also known as the PABC or CTC domain, is found at the C-terminus of cytoplasmic poly(A)-binding proteins (PABPs). It consists of a bundle of 4-5 alpha helices and contains a conserved KITGMLLE signature motif. The MLLE domain functio ...	The MLLE domain, also known as the PABC or CTC domain, is found at the C-terminus of cytoplasmic poly(A)-binding proteins (PABPs). It consists of a bundle of 4-5 alpha helices and contains a conserved KITGMLLE signature motif. The MLLE domain functions as a peptide-binding domain that interacts with PAM2 (PABP-interacting motif 2) sequences found in various PABP regulatory proteins involved in translation and mRNA decay. Key conserved residues in the MLLE domain form binding pockets that accommodate an invariant phenylalanine and other residues in the PAM2 motif. Besides PABPs, the MLLE domain is also found in the E3 ubiquitin ligase UBR5 where it serves as a protein interaction module. In some fungi, Rrm4 RNA-binding proteins contain a binding platform of 2-3 divergent MLLE domains that interact with PAM2-like motifs in the Upa1 protein to mediate attachment of mRNA-protein particles to endosomes for transport and localized translation.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Polyadenylate-binding protein 3	RNA binding binding poly(A) binding poly-purine tract binding nucleic acid binding single-stranded RNA binding mRNA 3'-UTR binding mRNA binding poly-pyrimidine tract binding poly(U) RNA binding	nucleobase-containing compound metabolic process RNA metabolic process metabolic process cellular process primary metabolic process macromolecule metabolic process mRNA metabolic process nucleic acid metabolic process	intracellular anatomical structure cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle cellular anatomical structure organelle membraneless organelle cytoplasm supramolecular complex cytoplasmic stress granule extracellular exosome membrane-bounded organelle extracellular vesicle intracellular anatomical structure cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle cellular anatomical structure organelle membraneless organelle cytoplasm supramolecular complex cytoplasmic stress granule extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle cytosol protein-containing complex ribonucleoprotein complex nucleus intracellular membrane-bounded organelle

Chains	Accession	Name	Type
A, B, C, D	IPR002004	Polyadenylate-binding protein/Hyperplastic disc protein, C-terminal	Domain
A, B, C, D	IPR000504	RNA recognition motif domain	Domain
A, B, C, D	IPR006515	Polyadenylate binding protein, human types 1, 2, 3, 4	Family
A, B, C, D	IPR012677	Nucleotide-binding alpha-beta plait domain superfamily	Homologous Superfamily
A, B, C, D	IPR003954	RNA recognition motif domain, eukaryotic-type	Domain
A, B, C, D	IPR036053	PABC (PABP) domain	Homologous Superfamily
A, B, C, D	IPR034364	PABP, RNA recognition motif 1	Domain
A, B, C, D	IPR035979	RNA-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR045305	PABP, RNA recognition motif 2	Domain

Chains	Drug Target	Associated Disease
A, B, C, D	: Q9H361	astrocytic tumor lung cancer osteosarcoma spina bifida Duchenne muscular dystrophy myopathy ovarian cancer lung adenocarcinoma oligodendroglioma Pick disease

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.