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Targeted Allele Detail
Symbol: Icam1tm1Bay
Name: intercellular adhesion molecule 1; targeted mutation 1, Baylor College of Medicine
MGI ID: MGI:1857183
Synonyms: CD54-, ICAM-1-
Gene: Icam1  Location: Chr9:21015985-21028817 bp, + strand  Genetic Position: Chr9, 7.69 cM
Germline Transmission:  Earliest citation of germline transmission: J:14565
Parent Cell Line:  AB1 (ES Cell)
Strain of Origin:  129S7/SvEvBrd-Hprt+
Allele Type:    Targeted (Null/knockout)
Mutation:    Insertion
Mutation detailsA neomycin resistance cassette was inserted into exon 5 of the gene. Subsequent analysis reported by King, et. al. (J:25530) revealed the presence of alternatively spliced transcripts in both wild-type and homozygous mutant mice. Protein expression was detected in mutant mice in medullary stromal cells of the thymus, as well as in the lung and spleen. Variable splicing of exons 2 through 6, encoding extracellular Ig domains, results in the production of 3 isoforms (2-6, 3-6, 4-6, where the numbers refer to spliced exons) in mutant mice. In addition to the 3 found in mutant mice, 2 other alternative splice forms including exon 5 were identified in wild-type mice. The reading frame and exons 1 and 7, encoding the signal sequence and both the transmembrane and cytosolic domains, are left intact in each isoform. (J:14565, J:25530)
View phenotypes and curated references for all genotypes (concatenated display).
Disease models
In Structures Affected by this Mutation: 6 anatomical structures
Find Mice (IMSR)
Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
Carrying this Mutation:  Mouse Strains: 2 strains available      Cell Lines: 0 lines available
Carrying any Icam1 Mutation:  17 strains or lines available
Original:  J:14565 Sligh JE Jr, et al., Inflammatory and immune responses are impaired in mice deficient in intercellular adhesion molecule 1. Proc Natl Acad Sci U S A. 1993 Sep 15;90(18):8529-33
All:  114 reference(s)

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)
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last database update
MGI 6.16
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