1NMR

Solution Structure of C-terminal Domain from Trypanosoma cruzi Poly(A)-Binding Protein

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1nmra1	All alpha proteins	PABP domain-like	PABC (PABP) domain	PABC (PABP) domain	poly(A) binding protein	(Trypanosoma cruzi ) [TaxId: 5693 ],	SCOPe (2.08)
A	d1nmra2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Trypanosoma cruzi ) [TaxId: 5693 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	PABC (PABP) domain	8024566	4003044	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PABC (PABP) domain	8036945	3000200	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)
A	PABP	e1nmrA1	A: alpha arrays	X: PABP domain-like	H: PABC(PABP) domain (From Topology)	T: PABC(PABP) domain	F: PABP	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	poly(A)-binding protein	RNA binding binding organic cyclic compound binding nucleic acid binding	-	protein-containing complex ribonucleoprotein complex cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

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

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.