Enables 3'-5' DNA helicase activity and enzyme binding activity. Involved in several processes, including determination of adult lifespan; meiotic nuclear division; and resolution of recombination intermediates. Located in chromosome and nucleus. Used to study Bloom syndrome. Human ortholog(s) of this gene implicated in Bloom syndrome. Is an ortholog of human BLM (BLM RecQ like helicase).
RecQ family nucleolar DNA helicase; role in genome integrity maintenance, chromosome synapsis, meiotic joint molecule/crossover formation; stimulates activity of Top3p; rapidly lost in response to rapamycin in Rrd1p-dependent manner; forms nuclear foci upon DNA replication stress; yeast SGS1 complements mutations in human homolog BLM implicated in Bloom syndrome; also similar to human WRN implicated in Werner syndrome; human BLM and WRN can each complement yeast null mutant
RMI2 is a component of the BLM (RECQL3; MIM 604610) complex, which plays a role in homologous recombination-dependent DNA repair and is essential for genome stability (Xu et al., 2008 [PubMed 18923082]).[supplied by OMIM, Nov 2008]
Topoisomerase 3alpha (Top3alpha) encodes a type IA topoisomerase that works with the helicase encoded by Blm to perform double Holliday junction dissolution during homologous recombination. It is also involved in DNA disentangling during chromosome segregation and mitochondrial DNA replication.
Bloom syndrome helicase (Blm) encodes a protein that plays important roles in repairing replication fork damage and double-strand breaks. It promotes repair through non-crossover mechanisms, though it also has roles in meiotic recombination.
Bleomycin hydrolase (BMH) is a cytoplasmic cysteine peptidase that is highly conserved through evolution; however, the only known activity of the enzyme is metabolic inactivation of the glycopeptide bleomycin (BLM), an essential component of combination chemotherapy regimens for cancer. The protein contains the signature active site residues of the cysteine protease papain superfamily. [provided by RefSeq, Jul 2008]
Predicted to enable several functions, including ATP binding activity; DNA binding activity; and DNA helicase activity. Predicted to be involved in several processes, including DNA geometric change; DNA metabolic process; and regulation of nucleobase-containing compound metabolic process. Predicted to act upstream of or within several processes, including T cell differentiation; positive regulation of T cell proliferation; and regulation of DNA recombination. Predicted to be located in cytosol; nucleus; and replication fork. Predicted to be part of RecQ family helicase-topoisomerase III complex. Predicted to colocalize with PML body and chromosome, telomeric region. Human ortholog(s) of this gene implicated in Bloom syndrome. Orthologous to human BLM (BLM RecQ like helicase); PARTICIPATES IN DNA replication pathway; homologous recombination pathway of double-strand break repair; INTERACTS WITH 17beta-estradiol; 2,3,7,8-tetrachlorodibenzodioxine; all-trans-retinoic acid.