MOLF/EiJ, MOLD/RkJ and MOLG/DnJ were derived from wild mice trapped in Kyushu, Japan. MOLF carries a Tlr3 variant that results in hypo-responsiveness to poly(I:C) stimulation. Wild-derived mice are genetically distinct from common laboratory mice for a number of complex phenotypic characteristics and are valuable tools for genetic mapping, evolution and systematics research.Read More +
This strain is homozygous for the retinal degeneration allele Pde6brd1.
MOLF/EiJ, MOLD/RkJ and MOLG/DnJ were derived from wild mice trapped in Kyushu, Japan. Stephan et. al. reported that wild-derived strains, MOLF, CZECH (Stock No. 001144) and MSM (Stock No. 003719), exhibit decreased secretion of TNF in response to stimulation by poly(I:C) (a synthetic analog of double-stranded RNA), the result of a P369L substitution in Tlr3. Response to Tlr2, Tlr4 and Tlr7-agonists is normal.
A 7 base pair deletion was reported in the Cd4 5' untranslated region of MOLF/EiJ (Wade et al. 1993, Capparelli et al. 2004). Subsequent testing at The Jackson Laboratory indicated that MOLC/EiJ, MOLD/EiJ and MOLG/EiJ also carry the variant sequence. The deletion is not believed to affect gene expression.
Wild-derived mice are genetically distinct from common laboratory mice for a number of complex phenotypic characteristics and are valuable tools for genetic mapping, evolution and systematics research.
In 2019-2020, researchers at The Jackson Laboratory discovered this inbred strain contains the Trem2S148E allele - a naturally occurring variant at position 48351151-48351152 on Chr 17 (rs108080490 and rs107649577; Ensembl GRCm38.p6). This TC to GA transition results in a serine to glutamic acid substitution at amino acid 148 (S148E).
MOLC, MOLD, and MOLF were all independently inbred from single pairings of related molossinus mice held by M Potter, at NIH; sent to TH Roderick and EM Eicher at The Jackson Laboratory in 1969.
|Allele Name||retinal degeneration 1|
|Allele Synonym(s)||Pdebrd1; rd; rd1; rd-1; rodless retina|
|Gene Symbol and Name||Pde6b, phosphodiesterase 6B, cGMP, rod receptor, beta polypeptide|
|Strain of Origin||various|
|General Note||The following inbred strains are known to be homozygous for Pde6b |
|Molecular Note||Two mutations have been identified in rd1 mice. A murine leukimia virus (Xmv-28) insertion in reverse orientation in intron 1 is found in all mouse strains with the rd1 phenotype. Further, a nonsense mutation (C-to-A transversion) in codon 347 that results in a truncation eliminating more than half of the predicted encoded protein, including the catalytic domain, has been identified in all rd1 strains of mice. A specific degradation of mutant transcript during or after pre-mRNA splicing is suggested.|
|Allele Name||b-3 variant|
|Allele Type||Not Applicable|
|Gene Symbol and Name||Ahr, aryl-hydrocarbon receptor|
|Strain of Origin||M. spretus|
|General Note|| |
Strain of origin - this allele was found in M. caroli, M. spretus, MOLF/Ei strains
|Molecular Note||This allele encodes a high affinity, 105 kDa receptor with slightly more heat stability than the receptor encoded by the BALB/cBy allele.|
|Allele Synonym(s)||C5-; C5-d; C5-def; C5-deficient; HcHfib2; hco|
|Gene Symbol and Name||Hc, hemolytic complement|
|Strain of Origin||multiple strains|
|General Note|| |
This is an allele characteristic of various inbred mouse strains including the following: A/HeJ, A/J, AKR/J, DBA/2J, NZB/B1NJ, SWR/J, B10.D2/oSnJ
Hc was identified as a candidate gene for Abhr2 in a microarray analysis of lung mRNA from A/J, C3H/HeJ, and (A/J x C3H/HeJ)F1 x A/J backcross animals. Hc genotype shows statistically significant correlation to allergen-induced bronchial hyperresponsive phenotype. The A/J allele contains a 2 bp deletion resulting in deficient Hc mRNA and protein production and is associated with susceptibility to allergen-induced bronchial hyperresponsiveness. (J:108211)
|Molecular Note||A 2 base "TA" deletion at positions 62 and 63 of an 83 base pair exon near the 5' end of the gene is found in the following mouse strains: A/HeJ, A/J, AKR/J, DBA/2J, I/LnJ, KK/HlJ, MOLF/EiJ, NZB/B1NJ, RF/J, ST/bJ SWR/J, B10.D2/oSnJ. The consequence of this deletion is the creation of a stop codon starting four bases after the deletion. A truncated product of 216 amino acids is predicted as a result although contradictory reports exist that a larger pro-C5 protein may be synthesized. Nevertheless, macrophages from mouse strains carrying this allele do not secrete complement 5.|
|Allele Type||Not Applicable (Not Specified)|
|Gene Symbol and Name||Cox7a2l, cytochrome c oxidase subunit 7A2 like|
|Strain of Origin||multiple strains|
|General Note||Querying the sequences of the Sanger Mouse Genomes Project reveals that the short allele with its 6 bp deletion exists in C57BL/6J, C57BL/10J, C57BL/6NJ, C58/J, BALB/cJ, C3H/HeH, 129S5/SvEvBrd, NZW/LacZ, and SEA/GnJ, but the long allele lacking the deletion exists in 129S1/SvImJ, A/J, AKR/J, BTBR T+ Itpr3tf/J, BUB/BnJ, C3H/HeJ, C57BR/cdJ, C57L/J, CAST/EiJ, CBA/J, DBA/1J, DBA/2J, FVB/NJ, I/LnJ, KK/HiJ, LEWES/EiJ, LP/J, MOLF/EiJ, NOD/ShiLtJ, NZB/BlNJ, NZO/HlLtJ, PWK/PhJ, RF/J, SPRET/EiJ, ST/bJ, WSB/EiJ, ZALENDE/EiJ.|
|Molecular Note||This allele encodes the long isoform with 113 amino acids. It is found in 129S2/SvPasCrl, CBA/CaOlaHsd, Hsd:ICR, and NZB/OlaHsd.|
|Allele Name||M. m. molossinus|
|Allele Type||Spontaneous (Not Specified)|
|Gene Symbol and Name||a, nonagouti|
|Strain of Origin||MOLF/EiJ|
|Molecular Note||This allele contains an insertion of DNA comprised of a 5.5kb virus-like element, VL30, into the first intron of the agouti gene. The VL30 element does not contain the additional 5.5 kb sequence, flanked by 526 bp of direct repeats (beta4 retroviral sequence), found in a. This allele is present in MOLF/EiJ and MSM/Ms strains.|
These mice are small and often need to wait until 4 weeks of age to wean.
When using the MOLF/EiJ mouse strain in a publication, please include JAX stock #000550 in your Materials and Methods section.