2LEH

Solution structure of the core SMN-Gemin2 complex

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	SMN protein Gemin2	8046710	4005254	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SMN protein Gemin2-like	8092161	3002565	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	PF04938	e2lehA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Survival of motor neuron protein-interacting protein 1 (From Topology)	T: Survival of motor neuron protein-interacting protein 1	F: PF04938	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.58.1070	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04938	Survival motor neuron (SMN) interacting protein 1 (SIP1) (SIP1)	Survival motor neuron (SMN) interacting protein 1 (SIP1)	-	Family
B	PF20636	Survival Motor Neuron, Gemin2-binding domain (SMN_G2-BD)	Survival Motor Neuron, Gemin2-binding domain	Survival Motor Neuron (SMN) protein forms the oligomeric core of a multi-protein complex that functions in spliceosomal snRNP biogenesis. It has three highly conserved domains: a short N-terminal segment responsible for binding with high affinity to ...	Survival Motor Neuron (SMN) protein forms the oligomeric core of a multi-protein complex that functions in spliceosomal snRNP biogenesis. It has three highly conserved domains: a short N-terminal segment responsible for binding with high affinity to Gemin2 (a protein involved in snRNP assembly), therefore, called Gemin2-binding domain (G2-BD), a central Tudor domain (Pfam:PF06003) that recognises symmetric dimethylarginine (sDMA) modifications in proteins involved in RNA processing, and a C-terminal domain, referred to as the 'YG-box' domain (Pfam:PF20635) [1,2]. This is the Gemin2-binding domain (G2-BD) of SMN proteins [1,2,3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Survival of motor neuron protein-interacting protein 1	-	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process ribonucleoprotein complex biogenesis mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile negative regulation of RNA binding regulation of molecular function negative regulation of binding regulation of binding biological regulation negative regulation of molecular function regulation of RNA binding spliceosomal snRNP assembly	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle nuclear body nucleoplasm Gemini of coiled bodies protein-containing complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex cytoplasm cytosol SMN-Sm protein complex SMN complex Sm-like protein family complex
B	Survival motor neuron protein	RNA binding binding organic cyclic compound binding nucleic acid binding identical protein binding protein binding	cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression DNA-templated transcription termination macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription organic cyclic compound metabolic process nucleic acid biosynthetic process organic substance metabolic process cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression DNA-templated transcription termination macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription organic cyclic compound metabolic process nucleic acid biosynthetic process organic substance metabolic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process metabolic process cellular process macromolecule metabolic process ribonucleoprotein complex biogenesis mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing RNA splicing protein-containing complex organization spliceosomal snRNP assembly mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile spliceosomal complex assembly developmental process multicellular organism development multicellular organismal process anatomical structure development nervous system development system development	somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen Gemini of coiled bodies Z disc sarcomere I band intracellular non-membrane-bounded organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex non-membrane-bounded organelle cytosol cell projection neuron projection plasma membrane bounded cell projection SMN-Sm protein complex protein-containing complex Sm-like protein family complex cytoplasmic ribonucleoprotein granule ribonucleoprotein granule Cajal body SMN complex axon

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017364	Gem-associated protein 2	Family
A	IPR035426	Gemin2/Brr1	Family
B	IPR002999	Tudor domain	Domain
B	IPR047313	Survival motor neuron protein, C-terminal oligomerization domain	Domain
B	IPR010304	Survival motor neuron, Tudor domain	Domain
B	IPR047298	Survival motor neuron protein, Tudor domain, eumetazoa	Domain
B	IPR040424	SMN complex subunit Smn1	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: O14893	IgA glomerulonephritis medulloblastoma lung cancer non-small cell lung carcinoma malignant mesothelioma psoriasis
B	Pharos: Q16637	spinal muscular atrophy, type III spinal muscular atrophy amyotrophic lateral sclerosis Spinal muscular atrophy 4 spinal muscular atrophy, type 1 spinal muscular atrophy, type IV neurodegenerative disease progressive muscular atrophy spinal muscular atrophy, type II muscular atrophy peripheral neuropathy Charcot-Marie-Tooth 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 R01GM133198.