SSR4

Signal sequence receptor, delta (translocon-associated protein delta)
Identifiers
Symbols	SSR4 ; TRAPD
External IDs	Template:OMIM5 Template:MGI HomoloGene: 4573
Gene ontology Molecular function Template:GNF GO Cellular component Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Biological process Template:GNF GO
RNA expression pattern
File:PBB GE SSR4 201004 at tn.png
More reference expression data
Orthologs
Template:GNF Ortholog box
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a

Signal sequence receptor, delta (translocon-associated protein delta), also known as SSR4, is a human gene.

SSR4, also called TRAPD, is assumed to be involved in protein secretion. It is located in the Xq28 region, arranged in a compact head-to-head manner with the IDH3G gene. These two genes are driven by a bidirectional promoter located between them, and encode proteins involved in unrelated biochemical pathways located in different compartments of the cell. The nontranscribed intergenic region represents only 133 bp and is embedded in a CpG island. The CpG island functions as a bidirectional promoter to initiate the transcription of both functionally unrelated genes with distinct expression patterns. SSR4 consists of six exons and is approximately 70 kb telomeric to the ALD gene. Although alternative splicing of exon 5 has not been detected in human SSR4, transcript variants missing the region homologous to human exon 5 have been detected in both Xenopus laevis and Mus musculus.

Further reading

• Holthuis JC, van Riel MC, Martens GJ (1996). "Translocon-associated protein TRAP delta and a novel TRAP-like protein are coordinately expressed with pro-opiomelanocortin in Xenopus intermediate pituitary". Biochem. J. 312 ( Pt 1): 205–13. PMID 7492314.CS1 maint: Multiple names: authors list (link)
• Hartmann E, Görlich D, Kostka S; et al. (1993). "A tetrameric complex of membrane proteins in the endoplasmic reticulum". Eur. J. Biochem. 214 (2): 375–81. PMID 7916687.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Brenner V, Nyakatura G, Rosenthal A, Platzer M (1997). "Genomic organization of two novel genes on human Xq28: compact head to head arrangement of IDH gamma and TRAP delta is conserved in rat and mouse". Genomics. 44 (1): 8–14. doi:10.1006/geno.1997.4822. PMID 9286695.CS1 maint: Multiple names: authors list (link)
• Wang L, Dobberstein B (1999). "Oligomeric complexes involved in translocation of proteins across the membrane of the endoplasmic reticulum". FEBS Lett. 457 (3): 316–22. PMID 10471800.
• Hartley JL, Temple GF, Brasch MA (2001). "DNA cloning using in vitro site-specific recombination". Genome Res. 10 (11): 1788–95. PMID 11076863.CS1 maint: Multiple names: authors list (link)
• Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMID 12477932.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Miyazaki K, Fujita T, Ozaki T; et al. (2004). "NEDL1, a novel ubiquitin-protein isopeptide ligase for dishevelled-1, targets mutant superoxide dismutase-1". J. Biol. Chem. 279 (12): 11327–35. doi:10.1074/jbc.M312389200. PMID 14684739.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Ota T, Suzuki Y, Nishikawa T; et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Wang Z, VandeBerg JL (2005). "Cloning and molecular characterization of a human ortholog of Monodelphis TRAPD in ultraviolet B-induced melanoma". Melanoma Res. 14 (2): 107–14. PMID 15057039.
• Gerhard DS, Wagner L, Feingold EA; et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMID 15489334.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Wiemann S, Arlt D, Huber W; et al. (2004). "From ORFeome to biology: a functional genomics pipeline". Genome Res. 14 (10B): 2136–44. doi:10.1101/gr.2576704. PMID 15489336.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Mehrle A, Rosenfelder H, Schupp I; et al. (2006). "The LIFEdb database in 2006". Nucleic Acids Res. 34 (Database issue): D415–8. doi:10.1093/nar/gkj139. PMID 16381901.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Ewing RM, Chu P, Elisma F; et al. (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Mol. Syst. Biol. 3: 89. doi:10.1038/msb4100134. PMID 17353931.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)