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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes FDA approved drug targets Human disease related genes
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
5
Cytoband
q13.2
Chromosome location (bp)
70925030 - 70953942
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
The SMN complex catalyzes the assembly of small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome, and thereby plays an important role in the splicing of cellular pre-mRNAs 1,2. Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP (Sm core) 3. In the cytosol, the Sm proteins SNRPD1, SNRPD2, SNRPE, SNRPF and SNRPG are trapped in an inactive 6S pICln-Sm complex by the chaperone CLNS1A that controls the assembly of the core snRNP 4. To assemble core snRNPs, the SMN complex accepts the trapped 5Sm proteins from CLNS1A forming an intermediate 5. Within the SMN complex, SMN1 acts as a structural backbone and together with GEMIN2 it gathers the Sm complex subunits 6,7,8. Binding of snRNA inside 5Sm ultimately triggers eviction of the SMN complex, thereby allowing binding of SNRPD3 and SNRPB to complete assembly of the core snRNP 9. Ensures the correct splicing of U12 intron-containing genes that may be important for normal motor and proprioceptive neurons development 10. Also required for resolving RNA-DNA hybrids created by RNA polymerase II, that form R-loop in transcription terminal regions, an important step in proper transcription termination 11. May also play a role in the metabolism of small nucleolar ribonucleoprotein (snoRNPs)....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
RNA-binding
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
mRNA processing, mRNA splicing, Neurogenesis
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene is part of a 500 kb inverted duplication on chromosome 5q13. This duplicated region contains at least four genes and repetitive elements which make it prone to rearrangements and deletions. The repetitiveness and complexity of the sequence have also caused difficulty in determining the organization of this genomic region. The telomeric and centromeric copies of this gene are nearly identical and encode the same protein. However, mutations in this gene, the telomeric copy, are associated with spinal muscular atrophy; mutations in the centromeric copy do not lead to disease. The centromeric copy may be a modifier of disease caused by mutation in the telomeric copy. The critical sequence difference between the two genes is a single nucleotide in exon 7, which is thought to be an exon splice enhancer. Note that the nine exons of both the telomeric and centromeric copies are designated historically as exon 1, 2a, 2b, and 3-8. It is thought that gene conversion events may involve the two genes, leading to varying copy numbers of each gene. The protein encoded by this gene localizes to both the cytoplasm and the nucleus. Within the nucleus, the protein localizes to subnuclear bodies called gems which are found near coiled bodies containing high concentrations of small ribonucleoproteins (snRNPs). This protein forms heteromeric complexes with proteins such as SIP1 and GEMIN4, and also interacts with several proteins known to be involved in the biogenesis of snRNPs, such as hnRNP U protein and the small nucleolar RNA binding protein. Multiple transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2014]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Q16637 [Direct mapping] Survival motor neuron protein
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Nervous system diseases Neurodegenerative diseases Mapped to neXtProt neXtProt - Evidence at protein level
Q16637 [Direct mapping] Survival motor neuron protein
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Nervous system diseases Neurodegenerative diseases Mapped to neXtProt neXtProt - Evidence at protein level
Q16637 [Direct mapping] Survival motor neuron protein
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Nervous system diseases Neurodegenerative diseases Mapped to neXtProt neXtProt - Evidence at protein level
Q16637 [Direct mapping] Survival motor neuron protein
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Nervous system diseases Neurodegenerative diseases Mapped to neXtProt neXtProt - Evidence at protein level
B4DP61 [Direct mapping] Survival motor neuron protein; cDNA FLJ60754, moderately similar to Survival motor neuron protein
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC FDA approved drug targets Biotech drugs Human disease related genes Nervous system diseases Neurodegenerative diseases
E7EQZ4 [Direct mapping] Survival motor neuron protein
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Nervous system diseases Neurodegenerative diseases
The Human Protein Atlas project is funded
