About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:4360218
Allelic
Composition		 Fcgr2btm1Ttk/Fcgr2b+
X/Yaa
Genetic
Background		 involves: 129S4/SvJae * C57BL/6 * SB/Le
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fcgr2btm1Ttk mutation (7 available); any Fcgr2b mutation (49 available)
Yaa mutation (23 available); any Yaa mutation (27 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
increased monocyte cell number ( J:129409 )
• 58% of mice display monocytosis by 10 months of age with a Gr-1- subset predominating

hematopoietic system
increased monocyte cell number ( J:129409 )
• 58% of mice display monocytosis by 10 months of age with a Gr-1- subset predominating

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
03/25/2025
MGI 6.24 		The Jackson Laboratory