SMARCAL1

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SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A-like protein 1 is a protein that in humans is encoded by the SMARCAL1 gene.[5][6][7]

SMARCAL1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesSMARCAL1, HARP, HHARP, SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a like 1
External IDsOMIM: 606622; MGI: 1859183; HomoloGene: 8558; GeneCards: SMARCAL1; OMA:SMARCAL1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001127207
NM_014140

NM_018817

RefSeq (protein)

NP_001120679
NP_054859

NP_061287

Location (UCSC)Chr 2: 216.41 – 216.48 MbChr 1: 72.62 – 72.67 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Function

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The protein encoded by this gene is a member of the SWI/SNF family of proteins. Members of this family have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The SMARCAL1 protein convert RPA-bound, single stranded DNA into double-stranded DNA, an enzyme activity termed "annealing helicase".[8] This activity is important for two cellular functions: replication fork reversal,[9] and R-loop unwinding.[10]

The encoded protein shows sequence similarity to the E. coli RNA polymerase-binding protein HepA. Mutations in this gene are a cause of Schimke immunoosseous dysplasia (SIOD), an autosomal recessive disorder with the diagnostic features of spondyloepiphyseal dysplasia, renal dysfunction, and T-cell immunodeficiency.[7]

References

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000138375Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000039354Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Muthuswami R, Truman PA, Mesner LD, Hockensmith JW (Mar 2000). "A eukaryotic SWI2/SNF2 domain, an exquisite detector of double-stranded to single-stranded DNA transition elements". The Journal of Biological Chemistry. 275 (11): 7648–55. doi:10.1074/jbc.275.11.7648. PMID 10713074.
  6. ^ Coleman MA, Eisen JA, Mohrenweiser HW (May 2000). "Cloning and characterization of HARP/SMARCAL1: a prokaryotic HepA-related SNF2 helicase protein from human and mouse". Genomics. 65 (3): 274–82. CiteSeerX 10.1.1.186.4879. doi:10.1006/geno.2000.6174. PMID 10857751.
  7. ^ a b "Entrez Gene: SMARCAL1 SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a-like 1".
  8. ^ Yusufzai T, Kadonaga JT (Oct 2008). "HARP is an ATP-driven annealing helicase". Science. 322 (5902): 748–50. Bibcode:2008Sci...322..748Y. doi:10.1126/science.1161233. PMC 2587503. PMID 18974355.
  9. ^ Bétous, Rémy; Mason, Aaron C.; Rambo, Robert P.; Bansbach, Carol E.; Badu-Nkansah, Akosua; Sirbu, Bianca M.; Eichman, Brandt F.; Cortez, David (2012-01-15). "SMARCAL1 catalyzes fork regression and Holliday junction migration to maintain genome stability during DNA replication". Genes & Development. 26 (2): 151–162. doi:10.1101/gad.178459.111. ISSN 0890-9369. PMC 3273839. PMID 22279047.
  10. ^ Hodson, Charlotte; van Twest, Sylvie; Dylewska, Malgorzata; O’Rourke, Julienne J.; Tan, Winnie; Murphy, Vincent J.; Walia, Mannu; Abbouche, Lara; Nieminuszczy, Jadwiga; Dunn, Elyse; Bythell-Douglas, Rohan; Heierhorst, Jörg; Niedzwiedz, Wojciech; Deans, Andrew J. (2022). "Branchpoint translocation by fork remodelers as a general mechanism of R-loop removal". Cell Reports. 41 (10): 111749. doi:10.1016/j.celrep.2022.111749.

Further reading

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