SAMM50

Sorting and assembly machinery component 50 homolog is a protein that in humans is encoded by the SAMM50 gene.[4][5]

SAMM50
Identifiers
Aliases	SAMM50, OMP85, SAM50, TOB55, TRG-3, YNL026W, CGI-51, SAMM50 sorting and assembly machinery component
External IDs	OMIM: 612058 MGI: 1915903 HomoloGene: 41034 GeneCards: SAMM50
Gene location (Human) Chr. Chromosome 22 (human)[1] Band 22q13.31 Start 43,955,442 bp[1] End 44,010,531 bp[1]
RNA expression pattern More reference expression data
Gene ontology Molecular function • GO:0001948 protein binding Cellular component • cytoplasm • integral component of membrane • mitochondrial inner membrane • outer membrane • mitochondrial outer membrane • extracellular exosome • membrane • mitochondrion • mitochondrial sorting and assembly machinery complex Biological process • cristae formation • protein import into mitochondrial outer membrane • mitochondrial respiratory chain complex assembly • cellular macromolecular complex assembly Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	25813	68653
Ensembl	ENSG00000100347	ENSMUSG00000022437
UniProt	Q9Y512	Q8BGH2
RefSeq (mRNA)	NM_015380	NM_178614
RefSeq (protein)	NP_056195	NP_848729
Location (UCSC)	Chr 22: 43.96 – 44.01 Mb	n/a
PubMed search	[2]	[3]
Wikidata
View/Edit Human View/Edit Mouse

Clinical significance

By means of exome sequencing, two variants - P377A and V231I on the SAMM50 gene were determined to have a potential relationship to the disease phenotype of Ezra, 7 year old male with clinical diagnosis of Alternating Hemiplegia of Childhood, Hemiplegic Migraine, Abdominal Migraines/atypical Cyclic Vomiting, Exocrine Pancreatic Disorder. (Mild) Dystonia, developmental regressions, Global Apraxia/Dyspraxic. History of torticollis, psychomotor regression and colitis as well as Carnitine Deficiency. These variants have not been reported previously, making Ezra the only person known to have these variants. If you are reading this and have a child/patient/loved one with any of these variants or another variant on SAMM50 with any similarities in phenotype, please edit this form so that we can connect.

References

1. GRCh38: Ensembl release 89: ENSG00000100347 - Ensembl, May 2017
2. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
3. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
4. Humphries AD, Streimann IC, Stojanovski D, Johnston AJ, Yano M, Hoogenraad NJ, Ryan MT (Mar 2005). "Dissection of the mitochondrial import and assembly pathway for human Tom40". The Journal of Biological Chemistry. 280 (12): 11535–43. doi:10.1074/jbc.M413816200. PMID 15644312.
5. "Entrez Gene: SAMM50 sorting and assembly machinery component 50 homolog (S. cerevisiae)".

Further reading

• Maruyama K, Sugano S (Jan 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
• Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (Oct 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
• Lai CH, Chou CY, Ch'ang LY, Liu CS, Lin W (May 2000). "Identification of novel human genes evolutionarily conserved in Caenorhabditis elegans by comparative proteomics". Genome Research. 10 (5): 703–13. doi:10.1101/gr.10.5.703. PMC 310876. PMID 10810093.
• Collins JE, Wright CL, Edwards CA, Davis MP, Grinham JA, Cole CG, Goward ME, Aguado B, Mallya M, Mokrab Y, Huckle EJ, Beare DM, Dunham I (2005). "A genome annotation-driven approach to cloning the human ORFeome". Genome Biology. 5 (10): R84. doi:10.1186/gb-2004-5-10-r84. PMC 545604. PMID 15461802.
• Kozjak-Pavlovic V, Ross K, Benlasfer N, Kimmig S, Karlas A, Rudel T (Jun 2007). "Conserved roles of Sam50 and metaxins in VDAC biogenesis". EMBO Reports. 8 (6): 576–82. doi:10.1038/sj.embor.7400982. PMC 2002532. PMID 17510655.
• Xie J, Marusich MF, Souda P, Whitelegge J, Capaldi RA (Jul 2007). "The mitochondrial inner membrane protein mitofilin exists as a complex with SAM50, metaxins 1 and 2, coiled-coil-helix coiled-coil-helix domain-containing protein 3 and 6 and DnaJC11". FEBS Letters. 581 (18): 3545–9. doi:10.1016/j.febslet.2007.06.052. PMID 17624330.