Gene Information
Gene NameIMPG2
OrganismHomo sapiens (Human)
Gene Length1241
Protein NamesInterphotoreceptor matrix proteoglycan 2 (Interphotoreceptor matrix proteoglycan of 200 kDa) (IPM 200) (Sialoprotein associated with cones and rods proteoglycan) (Spacrcan)
Target Nameinterphotoreceptor matrix proteoglycan 2
Target TypeNA
Gene Age645 ( ENSG00000081148 )
Evolutionary StageVertebrata
AlphaFoldDBQ9BZV3
Gene CardIMPG2
Uniprot IDQ9BZV3
PfamPF01390
In ASDno
Allosteric Predictionno (-1.442753384)
Ortholog in AnimalsAlpaca_ IMPG2 ( ortholog_one2one )
Dog_ IMPG2 ( ortholog_one2one )
GuineaPig_ IMPG2 ( ortholog_one2one )
Macaque_ IMPG2 ( ortholog_one2one )
Mouse_ Impg2 ( ortholog_one2one )
Pig_ IMPG2 ( ortholog_one2one )
Rat_ Impg2 ( ortholog_one2one )
Rabbit_ IMPG2 ( ortholog_one2one )
OhnologsNA
ParalogsIMPG1
Tissueoviduct, pineal.gland
Tissue SpecificityExpressed in the retina (at protein level) (PubMed:10702256, PubMed:29777959). Expressed by photoreceptors of the interphotoreceptor matrix (IPM) surrounding both rods and cones (at protein level) (PubMed:10542133, PubMed:29777959). IPM occupies the subretinal space between the apices of the retinal pigment epithelium and the neural retina (PubMed:10542133). Expressed in the pineal gland (at protein level) (PubMed:10702256). {ECO:0000269|PubMed:10542133, ECO:0000269|PubMed:10702256, ECO:0000269|PubMed:29777959}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs201893545  rs1706811719  rs34375459  rs571391  rs116450347  rs713993049 
Subcellular location [CC]Photoreceptor outer segment membrane {ECO:0000269|PubMed:29777959};
Single-pass type I membrane protein {ECO:0000255}. Photoreceptor inner segment membrane {ECO:0000250|UniProtKB:Q80XH2};
Single-pass type I membrane protein {ECO:0000255}. Secreted, extracellular space, extracellular matrix, interphotoreceptor matrix {ECO:0000269|PubMed:10702256}.
Mouse PG classificationNA
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