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Gene Detail
proteoglycan 4 (megakaryocyte stimulating factor, articular superficial zone protein)
Synonyms DOL54, lubricin, MSF, SZP
Feature Type protein coding gene
Genetic Map
Chromosome 1
63.84 cM, cytoband G
Detailed Genetic Map ± 1 cM

Mapping data(2)
Sequence Map
Chr1:150449816-150466165 bp, - strand
From VEGA annotation of GRCm38

  16350 bp   ±  kb flank

VEGA Genome Browser | Ensembl Genome Browser | UCSC Browser | NCBI Map Viewer

Mouse Genome Browser
HomoloGene:137352  Vertebrate Homology Class
1 mouse; 1 dog

Gene Tree: Prg4

alleles, and
All mutations/alleles(4) : Targeted(4)
Incidental mutations (data from Mutagenetix , APF )
Aging homozygous null mice develop a hopping gait, irregular endochondral growth plates, altered cartilage surface, camptodactyly, progressive synovial hyperplasia and, ultimately, joint failure.
Human Diseases Modeled Using Mouse Prg4 (1)    Alleles Annotated to Human Diseases(1)    Phenotype Images(3)
Prg4 interacts with 144 markers (Mir9-1, Mir9-2, Mir9-3, ...)
Gene Ontology
All GO classifications: (8 annotations)
Process hematopoietic stem cell proliferation, immune response, ...
Component extracellular region, extracellular space
Function polysaccharide binding, scavenger receptor activity
External Resources: FuncBase
Literature Summary: (12 records)
Data Summary: Results (36)    Tissues (10)    Images (25)
Theiler Stages: 23, 26
Assay TypeResults
RNA in situ 36
cDNA source data(6)
External Resources: Allen Institute   GEO   Expression Atlas
All nucleic(7) cDNA(6) Other(1)
Microarray probesets(3)
Other database
VEGA Gene ModelOTTMUSG00000033522 (Evidence)
Ensembl Gene ModelENSMUSG00000006014 (Evidence)
Entrez Gene96875 (Evidence)
DFCITC1588613, TC1665832
DoTSDT.101135951, DT.101394913, DT.40184387, DT.99854578
NIA Mouse Gene IndexU021875
Consensus CDS ProjectCCDS48391.1, CCDS48392.1
International Mouse Knockout Project StatusPrg4
Representative SequencesLengthStrain/SpeciesFlank
genomic OTTMUSG00000033522 VEGA Gene Model | MGI Sequence Detail 16350 C57BL/6J ±  kb
transcript OTTMUST00000084349 VEGA | MGI Sequence Detail 3821 Not Applicable 
polypeptide OTTMUSP00000045445 VEGA | MGI Sequence Detail 1221 Not Applicable 

For the selected sequences
All sequences(62) RefSeq(14) UniProt(7)
Polymorphisms SNPs within 2kb(223 from dbSNP Build 137)
InterPro IPR003302 Cornifin (SPRR1)
InterPro IPR018486 Hemopexin, conserved site
InterPro IPR000585 Hemopexin-like domain
InterPro IPR018487 Hemopexin-like repeats
InterPro IPR020436 Somatomedin B, chordata
InterPro IPR001212 Somatomedin B domain
Protein Ontology PR:000013208 proteoglycan 4
References (Earliest) J:75732 Kuroda M, et al., Induction of a secreted protein by the myxoid liposarcoma oncogene. Proc Natl Acad Sci U S A. 1999 Apr 27;96(9):5025-30
(Latest) J:207489 Ogawa H, et al., Mechanical motion promotes expression of Prg4 in articular cartilage via multiple CREB-dependent, fluid flow shear stress-induced signaling pathways. Genes Dev. 2014 Jan 15;28(2):127-39
All references(45)
Disease annotation references (1)

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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last database update
MGI 5.19
The Jackson Laboratory