Annotations: 3KUF

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF05641	e3kufA1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF05641	ECOD (1.6)
A	PF18336	e3kufA2	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF18336	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.30.140	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18336	Fragile X messenger ribonucleoprotein 1, Tudor domain (Tudor_FRX1)	Fragile X messenger ribonucleoprotein 1, Tudor domain	This is the N-terminal Tudor domain (Tud1) found in Fragile X messenger ribonucleoprotein 1 (FMR1) and its paralogues, RNA-binding proteins FXR1/2. The Tud1 domain forms a canonical Tudor barrel [1]. It is usually found in tandem with Agenet domain P ...	This is the N-terminal Tudor domain (Tud1) found in Fragile X messenger ribonucleoprotein 1 (FMR1) and its paralogues, RNA-binding proteins FXR1/2. The Tud1 domain forms a canonical Tudor barrel [1]. It is usually found in tandem with Agenet domain Pfam:PF05641.	Domain
A	PF05641	Agenet domain (Agenet)	Agenet domain	This domain is related to the TUDOR domain Pfam:PF00567 [1]. The function of the agenet domain is unknown. This family now matches both the two Agenet domains in the FMR proteins [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Fragile X mental retardation syndrome-related protein 1	mRNA 3'-UTR binding RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding RNA strand annealing activity annealing activity single-stranded RNA binding translation regulator activity protein heterodimerization activity protein binding protein dimerization activity molecular condensate scaffold activity mRNA 3'-UTR binding RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding RNA strand annealing activity annealing activity single-stranded RNA binding translation regulator activity protein heterodimerization activity protein binding protein dimerization activity molecular condensate scaffold activity protein-macromolecule adaptor activity molecular adaptor activity mRNA 3'-UTR AU-rich region binding identical protein binding protein homodimerization activity	negative regulation of long-term synaptic potentiation positive regulation of cell communication regulation of cellular process modulation of chemical synaptic transmission signaling positive regulation of biological process negative regulation of biological process cell communication long-term synaptic potentiation synaptic signaling regulation of biological quality positive regulation of cellular process regulation of synaptic plasticity trans-synaptic signaling negative regulation of long-term synaptic potentiation positive regulation of cell communication regulation of cellular process modulation of chemical synaptic transmission signaling positive regulation of biological process negative regulation of biological process cell communication long-term synaptic potentiation synaptic signaling regulation of biological quality positive regulation of cellular process regulation of synaptic plasticity trans-synaptic signaling regulation of biological process regulation of signaling biological regulation cell-cell signaling positive regulation of synaptic transmission chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of long-term synaptic potentiation regulation of cell communication cellular process positive regulation of signaling cellular component organization localization nuclear pore localization cellular localization nucleus organization organelle organization localization within membrane cellular component organization or biogenesis protein-containing complex localization developmental process multicellular organismal process regulation of multicellular organismal development regulation of developmental process cellular developmental process cell development regulation of neurogenesis regulation of cell differentiation nervous system development regulation of cell development regulation of nervous system development multicellular organism development neurogenesis cell differentiation anatomical structure development regulation of multicellular organismal process system development regulation of tumor necrosis factor production cellular biosynthetic process negative regulation of cellular metabolic process negative regulation of tumor necrosis factor production organic substance metabolic process cytokine production organic substance biosynthetic process regulation of cytokine production negative regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process cellular metabolic process negative regulation of metabolic process tumor necrosis factor superfamily cytokine production regulation of cellular metabolic process negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process tumor necrosis factor production negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression regulation of tumor necrosis factor superfamily cytokine production biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of tumor necrosis factor superfamily cytokine production metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process negative regulation of multicellular organismal process regulation of metabolic process rhythmic process circadian sleep/wake cycle, sleep circadian sleep/wake cycle rhythmic behavior regulation of circadian sleep/wake cycle circadian rhythm regulation of circadian rhythm regulation of behavior behavior circadian behavior sleep regulation of circadian sleep/wake cycle, sleep circadian sleep/wake cycle process apoptotic process cell death programmed cell death muscle structure development animal organ development muscle organ development spermatid development spermatid differentiation sexual reproduction spermatogenesis reproductive process multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation male gamete generation germ cell development regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process RNA catabolic process mRNA catabolic process positive regulation of nucleobase-containing compound metabolic process positive regulation of mRNA metabolic process primary metabolic process nucleobase-containing compound catabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process nucleic acid catabolic process catabolic process RNA metabolic process mRNA destabilization macromolecule catabolic process regulation of mRNA catabolic process RNA destabilization regulation of catabolic process mRNA metabolic process nucleic acid metabolic process organic cyclic compound catabolic process positive regulation of catabolic process regulation of mRNA stability positive regulation of mRNA catabolic process regulation of RNA stability regulation of mRNA metabolic process organic substance catabolic process organonitrogen compound biosynthetic process negative regulation of translation protein metabolic process negative regulation of protein metabolic process organonitrogen compound metabolic process regulation of protein metabolic process translation regulation of translation regulation of miRNA-mediated gene silencing positive regulation of post-transcriptional gene silencing positive regulation of miRNA-mediated gene silencing regulation of gene silencing by regulatory ncRNA positive regulation of post-transcriptional gene silencing by RNA regulation of post-transcriptional gene silencing by regulatory ncRNA regulatory ncRNA-mediated post-transcriptional gene silencing regulatory ncRNA-mediated gene silencing miRNA-mediated post-transcriptional gene silencing regulation of post-transcriptional gene silencing post-transcriptional gene silencing cellular component biogenesis cellular component assembly organelle assembly non-membrane-bounded organelle assembly alternative mRNA splicing, via spliceosome regulation of mRNA splicing, via spliceosome mRNA processing RNA processing regulation of mRNA processing RNA splicing regulation of RNA splicing RNA splicing, via transesterification reactions regulation of alternative mRNA splicing, via spliceosome mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile regulation of defense response response to stimulus regulation of response to external stimulus negative regulation of inflammatory response defense response negative regulation of response to stimulus response to external stimulus regulation of inflammatory response regulation of response to stimulus response to stress negative regulation of response to external stimulus regulation of response to stress negative regulation of defense response inflammatory response positive regulation of protein metabolic process positive regulation of translation positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of biosynthetic process positive regulation of gene expression positive regulation of cellular biosynthetic process skeletal muscle organ development head development forebrain development brain development dentate gyrus development pallium development central nervous system development telencephalon development hippocampus development limbic system development positive regulation of phosphorylation regulation of protein modification process regulation of protein phosphorylation positive regulation of phosphate metabolic process positive regulation of protein modification process regulation of phosphate metabolic process phosphate-containing compound metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein modification process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation macromolecule modification regulation of phosphorus metabolic process regulation of phosphorylation synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic filopodium assembly regulation of cellular component organization plasma membrane bounded cell projection organization cell projection organization regulation of cell projection organization regulation of cell projection assembly regulation of filopodium assembly plasma membrane bounded cell projection assembly regulation of cellular component biogenesis regulation of plasma membrane bounded cell projection assembly cell projection assembly regulation of plasma membrane bounded cell projection organization nuclear pore organization protein-containing complex organization pore complex assembly nuclear pore complex assembly protein-containing complex assembly	membrane cellular anatomical entity membrane-bounded organelle intracellular organelle organelle envelope intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system cytoplasm cytosol costamere membrane cellular anatomical entity membrane-bounded organelle intracellular organelle organelle envelope intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system cytoplasm cytosol costamere intracellular non-membrane-bounded organelle contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex non-membrane-bounded organelle synapse cell junction glutamatergic synapse somatodendritic compartment cell projection actin-based cell projection dendritic filopodium dendrite dendritic tree filopodium neuron projection plasma membrane bounded cell projection neuron spine dendritic spine postsynapse perinuclear region of cytoplasm cell body neuronal cell body axon dendritic spine neck membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen nuclear lumen cytoplasmic ribonucleoprotein granule ribonucleoprotein granule cytoplasmic stress granule presynapse growth cone distal axon site of polarized growth ribosome postsynaptic density neuron to neuron synapse postsynaptic specialization asymmetric synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR047495	RNA-binding protein FXR1, second type I K homology domain	Domain
A	IPR047496	RNA-binding protein FXR2, third type I K homology domain	Domain
A	IPR032172	Fragile X-related protein 1, C-terminal region 1	Domain
A	IPR041560	FMR1, tudor domain	Domain
A	IPR022034	Fragile X messenger ribonucleoprotein 1-like, C-terminal core	Domain
A	IPR047494	RNA-binding protein FXR1, first type I K homology domain	Domain
A	IPR047425	RNA-binding protein FXR1, first Tudor-like Agenet domain	Domain
A	IPR004088	K Homology domain, type 1	Domain
A	IPR040148	Fragile X messenger ribonucleoprotein 1	Family
A	IPR008395	Agenet-like domain	Domain
A	IPR047427	RNA-binding protein FXR1, second Tudor-like Agenet domain	Domain
A	IPR004087	K Homology domain	Domain
A	IPR036612	K Homology domain, type 1 superfamily	Homologous Superfamily
A	IPR040472	Synaptic functional regulator FMRP, KH0 domain	Domain
A	IPR032177	Fragile X-related 1 protein, C-terminal region 3	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P51114	pancreatic intraductal papillary-mucinous neoplasm Sjogren syndrome anorexia nervosa autism spectrum disorder Gaucher disease lung adenocarcinoma malignant ependymoma nasopharyngeal carcinoma ovarian cancer pituitary cancer tuberculosis attention deficit hyperactivity disorder, inattentive type breast cancer glioblastoma lung cancer pancreatic intraductal papillary-mucinous neoplasm Sjogren syndrome anorexia nervosa autism spectrum disorder Gaucher disease lung adenocarcinoma malignant ependymoma nasopharyngeal carcinoma ovarian cancer pituitary cancer tuberculosis attention deficit hyperactivity disorder, inattentive type breast cancer glioblastoma lung cancer malignant glioma non-small cell lung carcinoma pancreatic ductal adenocarcinoma plasma cell myeloma atypical teratoid rhabdoid tumor fragile X syndrome large cell medulloblastoma lymphoplasmacytic lymphoma Malignant neoplasm of breast osteosarcoma

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.