About   Help   FAQ
Phenotype Image Detail
Image
Caption (A) Representative electron micrographs from transverse sciatic nerve ultrathin section from Sirt2tm1.1Auw/Sirt2tm1.1Auw Tg(Mpz-cre)26Mes/0 (Sirt2-SCKO) mutants and Sirt2tm1.1Auw/Sirt2tm1.1Auw (Sirt2fl/fl-control) mice at postnatal ages P1, P3, and P5. Note reduction in the number of myelinated fibers in Sirt2-SCKO preparations. (Scale bar: 10 um.) (B and C) Histomorphometric quantification of myelinated fiber numbers (B) and g-ratios (C) in transverse sciatic nerve sections from mutants and control mice at postnatal ages P1-P28 (n = 3-5 mice per group tested) (*P < 0.05). (D) Representative light (Upper) and electron (Lower) microscopy of distal sciatic nerve stumps 14 d after nerve crush injury. Red arrows point to regenerated fibers. Note thinner myelin sheaths or complete absence of compact myelin (asterisks) in axons from adult Sirt2-SCKO mutant mice compared with controls. Blue arrowheads point to macrophages with typical cytoplasmic vacuolation due to phagocytosis. [Scale bars: 20 um (light microscopy) and 2 um (electron microscopy).] (E and F) Quantification of g-ratios (E) and fiber numbers (F) in distal sciatic nerve stumps at different time points after nerve crush injury in Sirt2-SCKO mutant mice and controls (n = 7-8 mice per group tested) (*P < 0.05).
Copyright This image is from Beirowski B, Proc Natl Acad Sci U S A 2011 Oct 25;108(43):E952-61. Copyright 2011 National Academy of Sciences, U.S.A. J:177468
Associated
Alleles
Symbol Name
Sirt2tm1.1Auw sirtuin 2; targeted mutation 1.1, Johan Auwerx
Tg(Mpz-cre)26Mes transgene insertion 26, Albee Messing
Associated
Genotypes
Allelic Composition Genetic Background
Sirt2tm1.1Auw/Sirt2tm1.1Auw
Tg(Mpz-cre)26Mes/0
involves: 129 * C57BL/6J * FVB/N

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
06/12/2024
MGI 6.13
The Jackson Laboratory