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Lss Gene Detail
Summary
  • Symbol
    Lss
  • Name
    lanosterol synthase
  • Synonyms
    2810025N20Rik, D10Ertd116e, MGC:27893, Osc
  • Feature Type
    protein coding gene
  • IDs
    MGI:1336155
    NCBI Gene: 16987
  • Alliance
    genome feature page
  • Transcription Start Sites
    2 TSS
Location &
Maps
more
  • Sequence Map
    Chr10:76367422-76392972 bp, + strand
    From Ensembl annotation of GRCm39
  • View this region in JBrowse
  • Genome Browsers
    Ensembl | UCSC | NCBI
  • Genetic Map
    Chromosome 10, 39.10 cM
  • Mapping Data
    6 experiments
Strain
Comparison
more
  • SNPs within 2kb
    762 from dbSNP Build 142
  • Strain Annotations
    19
For selected strains:
Strain Gene Model ID Feature Type Coordinates Select Strains
C57BL/6J MGI_C57BL6J_1336155
 protein coding gene Chr10:76367303-76392973 (+)
129S1/SvImJ ENSMUSG00200041473
 protein coding gene Chr10:73044489-73070531 (+)
A/J ENSMUSG00195042195
 protein coding gene Chr10:73381110-73407150 (+)
AKR/J ENSMUSG00220039400
 protein coding gene Chr10:73040822-73066859 (+)
BALB/cJ ENSMUSG00180052000
 protein coding gene Chr10:73395563-73421606 (+)
C3H/HeJ ENSMUSG00175042375
 protein coding gene Chr10:73266833-73292872 (+)
C57BL/6NJ ENSMUSG00215051614
 protein coding gene Chr10:73004477-73030520 (+)
CAROLI/EiJ MGP_CAROLIEiJ_G0015470
 protein coding gene Chr10:70571644-70597353 (+)
CAST/EiJ ENSTCUG00005047395
 protein coding gene Chr10:72886839-72919624 (+)
CBA/J ENSMUSG00210045802
 protein coding gene Chr10:73122985-73149445 (+)
DBA/2J ENSMUSG00185047111
 protein coding gene Chr10:73465290-73491331 (+)
FVB/NJ ENSMUSG00205048879
 protein coding gene Chr10:73157965-73184008 (+)
JF1/MsJ ENSUMUG00000039459
 protein coding gene Chr10:74615205-74641971 (+)
LP/J ENSMUSG00230043694
 protein coding gene Chr10:75234851-75260892 (+)
NOD/ShiLtJ ENSMUSG00190044946
 protein coding gene Chr10:73442751-73469214 (+)
NZO/HlLtJ ENSMUSG00225046094
 protein coding gene Chr10:79531495-79557957 (+)
PWK/PhJ ENSLUMG00010049651
 protein coding gene Chr10:73006472-73032544 (+)
SPRET/EiJ ENSMSPG00010040142
 protein coding gene Chr10:74796322-74822068 (+)
WSB/EiJ ENSIUOG00005043935
 protein coding gene Chr10:73047512-73073547 (+)



Homology
more
  • Human Ortholog
    LSS, lanosterol synthase
  • Vertebrate Orthologs
    3
Vertebrate Orthology Source
Alliance of Genome Resources
  • Human Ortholog
    LSS, lanosterol synthase
  • Synonyms
    APMR4, CTRCT44, HYPT14, OSC
  • Links
    NCBI Gene ID: 4047
    UniProt: P48449

  • Chr Location
    21q22.3; chr21:46188141-46228840 (-)  GRCh38
Human Diseases
more
  • Diseases
    1 with Lss mouse models; 4 with human LSS associations

Human Disease Mouse Models
      
IDs
 View 1 model
      
IDs
IDs
IDs
Click on a disease name to see all genes associated with that disease.

  • Mutations/Alleles
    1 with disease annotations
  • References
    3 with disease annotations
Mutations,
Alleles, and
Phenotypes
less
  • Phenotype Summary
    12 phenotypes from 2 alleles in 3 genetic backgrounds
    47 phenotype references
Phenotype Overview

adipose tissue
behavior/neurological
cardiovascular system
cellular
craniofacial
digestive/alimentary system
embryo
endocrine/exocrine glands
growth/size/body
hearing/vestibular/ear
hematopoietic system
homeostasis/metabolism
integument
immune system
limbs/digits/tail
liver/biliary system
mortality/aging
muscle
nervous system
pigmentation
renal/urinary system
reproductive system
respiratory system
skeleton
taste/olfaction
neoplasm
vision/eye

Click cells to view annotations.
Mice homozygous for a null allele exhibit neonatal lethality and congenital cataracts associated with incomplete lens fiber cell differentiation and disrupted cholesterol biosynthesis pathways.
Gene Ontology
(GO)
Classifications
less
  • All GO Annotations
    36
  • GO References
    13
Molecular Function

carbohydrate derivative binding
cytoskeletal protein binding
DNA binding
enzyme regulator
hydrolase
ligase
lipid binding
oxidoreductase
RNA binding
signaling receptor activity
signaling receptor binding
transcription
transferase
transporter
Biological Process

carbohydrate derivative metabolism
cell differentiation
cell population proliferation
cellular component organization
DNA-templated transcription
establishment of localization
homeostatic process
immune system process
lipid metabolic process
programmed cell death
protein metabolic process
response to stimulus
signaling
system development
Cellular Component

cell projection
cytoplasmic vesicle
cytoskeleton
cytosol
endoplasmic reticulum
endosome
extracellular region
Golgi apparatus
mitochondrion
membraneless organelle
nucleus
organelle envelope
organelle lumen
plasma membrane
protein-containing complex
synapse
vacuole
Click cells to view annotations.
Expression
less
Expression Overview

early conceptus
embryo ectoderm
embryo endoderm
embryo mesoderm
embryo mesenchyme
extraembryonic component
alimentary system
auditory system
branchial arches
cardiovascular system
connective tissue
endocrine system
exocrine system
hemolymphoid system
integumental system
limbs
liver and biliary system
musculoskeletal system
nervous system
olfactory system
reproductive system
respiratory system
urinary system
visual system
Click cells to view annotations.


  • Assay Results
    1011
  • Tissues
    227
  • cDNA Data
    98
  • Literature Summary
    13
  • Comparison Matrix
    Gene Expression + Phenotype
    • Sequences &
    Gene Models
    less
    Representative SequencesLengthStrain/SpeciesFlank
    genomic ENSMUSG00000033105 Ensembl Gene Model | MGI Sequence Detail 25551 C57BL/6J ±  kb
    transcript ENSMUST00000048678 Ensembl | MGI Sequence Detail 4667 Not Applicable  
    polypeptide ENSMUSP00000046856 Ensembl | MGI Sequence Detail 733 Not Applicable  
    For the selected sequence
    Protein
    Information
    less
    Molecular
    Reagents
    less
    • All nucleic 112
      Genomic 9
      cDNA 99
      Primer pair 4

      Microarray probesets 8
    Other
    Accession IDs
    less
    MGI:1098720, MGI:1914310, MGI:2384912
    References
    more
    • Summaries
      All 101
      Developmental Gene Expression 13
      Diseases 3
      Gene Ontology 13
      Phenotypes 47
    • Earliest
      J:137335 Roderick TH, Chromosomal inversions in studies of mammalian mutagenesis. Genetics. 1979 May;92(1 Pt 1 Suppl):s121-6
    • Latest
      J:361105 Tateossian H, et al., DYRK1A kinase triplication is the major cause of Otitis Media in Down Syndrome. Elife. 2025;
    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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    Funding Information
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    Send questions and comments to User Support.     		last database update
    09/08/2026
    MGI 6.24     		The Jackson Laboratory