Homo sapiens Protein: LIN7B
Summary
InnateDB Protein IDBP-246829.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol LIN7B
Protein Name lin-7 homolog B (C. elegans)
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000375737
InnateDB Gene IDBG-62155 (LIN7B)
Protein Structure
UniProt Annotation
Function Plays a role in establishing and maintaining the asymmetric distribution of channels and receptors at the plasma membrane of polarized cells. Forms membrane-associated multiprotein complexes that may regulate delivery and recycling of proteins to the correct membrane domains. The tripartite complex composed of LIN7 (LIN7A, LIN7B or LIN7C), CASK and APBA1 may have the potential to couple synaptic vesicle exocytosis to cell adhesion in brain. Ensures the proper localization of GRIN2B (subunit 2B of the NMDA receptor) to neuronal postsynaptic density and may function in localizing synaptic vesicles at synapses where it is recruited by beta-catenin and cadherin. Required to localize Kir2 channels, GABA transporter (SLC6A12) and EGFR/ERBB1, ERBB2, ERBB3 and ERBB4 to the basolateral membrane of epithelial cells. May increase the amplitude of ASIC3 acid-evoked currents by stabilizing the channel at the cell surface (By similarity). {ECO:0000250}.
Subcellular Localization Cell membrane; Peripheral membrane protein. Basolateral cell membrane; Peripheral membrane protein. Cell junction {ECO:0000250}. Cell junction, synapse, postsynaptic cell membrane, postsynaptic density {ECO:0000250}; Peripheral membrane protein {ECO:0000250}. Cell junction, tight junction {ECO:0000250}. Cell junction, synapse, synaptosome {ECO:0000250}. Note=Enriched in synaptosomes and at epithelial cell-cell junctions (By similarity). Mainly basolateral in renal epithelial cells. {ECO:0000250}.
Disease Associations
Tissue Specificity
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 12 experimentally validated interaction(s) in this database.
They are also associated with 1 interaction(s) predicted by orthology.
Experimentally validated
Total 12 [view]
Protein-Protein 12 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 1 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005515 protein binding
GO:0019904 protein domain specific binding
Biological Process
GO:0006887 exocytosis
GO:0015031 protein transport
Cellular Component
GO:0005923 tight junction
GO:0014069 postsynaptic density
GO:0016323 basolateral plasma membrane
GO:0043005 neuron projection
GO:0045211 postsynaptic membrane
Protein Structure and Domains
PDB ID
InterPro IPR001478 PDZ domain
IPR004172 L27
IPR014775 L27, C-terminal
PFAM PF00595
PF13180
PF02828
PRINTS
PIRSF
SMART SM00228
SM00569
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9HAP6
PhosphoSite PhosphoSite-Q9HAP6
TrEMBL
UniProt Splice Variant
Entrez Gene 64130
UniGene
RefSeq XP_005259206
HUGO HGNC:17788
OMIM 612331
CCDS
HPRD 10040
IMGT
EMBL AF311862 AI826082 AY358744 BC027618
GenPept AAG34117 AAH27618 AAQ89104