Biology:DNM2

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Dynamin-2 is a protein that in humans is encoded by the DNM2 gene.[1][2]

Function

Dynamins represent one of the subfamilies of GTP-binding proteins. These proteins share considerable sequence similarity over the N-terminal portion of the molecule, which contains the GTPase domain. Dynamins are associated with microtubules. They have been implicated in cell processes such as endocytosis and cell motility, and in alterations of the membrane that accompany certain activities such as bone resorption by osteoclasts. Dynamins bind many proteins that bind actin and other cytoskeletal proteins. Dynamins can also self-assemble, a process that stimulates GTPase activity. Four alternatively spliced transcripts encoding different proteins have been described. Additional alternatively spliced transcripts may exist, but their full-length nature has not been determined.[3]

Interactions

DNM2 has been shown to interact with:

Clinical relevance

Mutations in this gene have been associated to cases of acute lymphoblastic leukaemia,[6] or congenital myopathy (centronuclear type).[7]

References

  1. "Isolation of an ubiquitously expressed cDNA encoding human dynamin II, a member of the large GTP-binding protein family". Gene 163 (2): 301–6. Nov 1995. doi:10.1016/0378-1119(95)00275-B. PMID 7590285. 
  2. "Dynamin genes Dnm1 and Dnm2 are located on proximal mouse chromosomes 2 and 9, respectively". Genomics 41 (2): 290–2. Jul 1997. doi:10.1006/geno.1997.4634. PMID 9143510. 
  3. "Entrez Gene: DNM2 dynamin 2". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1785. 
  4. 4.0 4.1 "Dynamin isoform-specific interaction with the shank/ProSAP scaffolding proteins of the postsynaptic density and actin cytoskeleton". J. Biol. Chem. 276 (51): 48458–65. Dec 2001. doi:10.1074/jbc.M104927200. PMID 11583995. 
  5. "Sorting nexin 9 participates in clathrin-mediated endocytosis through interactions with the core components". J. Biol. Chem. 278 (47): 46772–81. Nov 2003. doi:10.1074/jbc.M307334200. PMID 12952949. 
  6. "The genetic basis of early T-cell precursor acute lymphoblastic leukaemia". Nature 481 (7380): 157–63. 2012. doi:10.1038/nature10725. PMID 22237106. 
  7. Jungbluth, H (2014). "Pathogenic mechanisms in centronuclear myopathies.". Front Aging Neurosci 6: 339. doi:10.3389/fnagi.2014.00339. PMID 25566070. 

Further reading

External links