RMI1

RecQ mediated genome instability 1

Rendering based on PDB 3MXN.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
Symbols RMI1 ; BLAP75; C9orf76; FAAP75
External IDs OMIM: 610404 MGI: 1921636 HomoloGene: 41601 GeneCards: RMI1 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 80010 74386
Ensembl ENSG00000178966 ENSMUSG00000035367
UniProt Q9H9A7 Q9D4G9
RefSeq (mRNA) NM_024945 NM_001168248
RefSeq (protein) NP_079221 NP_001161720
Location (UCSC) Chr 9:
83.98 – 84 Mb
Chr 13:
58.4 – 58.41 Mb
PubMed search

RecQ-mediated genome instability protein 1 is a protein that in humans is encoded by the RMI1 gene.[1][2]

Meiosis

During meiosis in budding yeast Saccharomyces cerevisiae, TOP3 (a type I topoisomerase) and its accessory factor RMI1 form a heterodimer that functions to allow passage of one DNA single strand through another. The TOP3-RMI1 heterodimer associates with Sgs1 (Bloom helicase ortholog) to form a complex that catalyzes dissolution of double Holliday junctions.[3] Furthermore, the TOP3-RMI1 heterodimer participates in all meiotic recombination functions associated with Sgs1, most significantly as an early recombination intermediate chaperone, promoting regulated crossover and non-crossover recombination and preventing accumulation of aberrant recombination intermediates.[4] In particular, the TOP3-RMI1–SGS1 complex promotes early formation of non-crossover recombinants during meiosis.[4]

References

  1. Yin J, Sobeck A, Xu C, Meetei AR, Hoatlin M, Li L, Wang W (May 2005). "BLAP75, an essential component of Bloom's syndrome protein complexes that maintain genome integrity". EMBO J 24 (7): 1465–76. doi:10.1038/sj.emboj.7600622. PMC 1142546. PMID 15775963.
  2. "Entrez Gene: RMI1 RMI1, RecQ mediated genome instability 1, homolog (S. cerevisiae)".
  3. Bizard AH, Hickson ID (2014). "The dissolution of double Holliday junctions". Cold Spring Harb Perspect Biol 6 (7): a016477. doi:10.1101/cshperspect.a016477. PMID 24984776.
  4. 1 2 Kaur H, De Muyt A, Lichten M (2015). "Top3-Rmi1 DNA single-strand decatenase is integral to the formation and resolution of meiotic recombination intermediates". Mol. Cell 57 (4): 583–94. doi:10.1016/j.molcel.2015.01.020. PMID 25699707.

Further reading

This article is issued from Wikipedia - version of the Wednesday, September 02, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.