8S6N | pdb_00008s6n

Chains	Accession	Name	Description	Comments	Source
A, C [auth B], E [auth D], G	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
B [auth E], D [auth C], F, H	PAMPL1	-	-	-
A, C [auth B], E [auth D], G	RNA-binding protein RRM4	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	RNA transport nitrogen compound transport transport nucleic acid transport mRNA transport establishment of localization localization establishment of RNA localization macromolecule localization RNA localization nucleobase-containing compound transport	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 cytoskeleton membrane-bounded organelle endosome 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 cytoskeleton membrane-bounded organelle endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system cytoplasmic vesicle vesicle cytosol protein-containing complex ribonucleoprotein complex nucleus

Chains	Accession	Name	Type
A, C [auth B], E [auth D], G	IPR002004	Polyadenylate-binding protein/Hyperplastic disc protein, C-terminal	Domain
A, C [auth B], E [auth D], G	IPR000504	RNA recognition motif domain	Domain
A, C [auth B], E [auth D], G	IPR012677	Nucleotide-binding alpha-beta plait domain superfamily	Homologous Superfamily
A, C [auth B], E [auth D], G	IPR036053	PABC (PABP) domain	Homologous Superfamily
A, C [auth B], E [auth D], G	IPR035979	RNA-binding domain superfamily	Homologous Superfamily