Annotated protein:Neogenin. Gene symbol: NEO1. Taxonomy: Mus musculus (Mouse). Uniprot ID: P97798
antibody wiki:
SynGO gene info:SynGO data @ NEO1
Ontology domain:Cellular Component
SynGO term:integral component of postsynaptic density membrane (GO:0099061)
Synapse type(s):hippocampus, glutamatergic
Annotated paper:Liakath-Ali K, et al. "Transsynaptic cerebellin 4-neogenin 1 signaling mediates LTP in the mouse dentate gyrus" Proc Natl Acad Sci U S A. 2022 May 17;119(20):e2123421119 PMID:35544694
Figure(s):Figure 2, 4, 5
Annotation description:Figure 4: Neo1 binds in trans to Cbln4/Nrxn1α-SS4+ complexes, forming bona fide adhesion complexes.

Figure 2: Cbln4 deletion in the EC selectively blocks LTP at EC→DG synapses. (EC = entorhinal cortex, DG = dentate gyrus).

Figure 5: Postsynaptic deletion of Neo1 in the DG severely impaired LTP in EC→DG synapses of both MPP (Fig. 5 E-G) and LPP connections (Fig. 5 H-J), similar to the presynaptic deletion of Cbln4 in the EC (Fig. 1).

Taken together, authors concluded that Cbln4 connects presynaptic Neurexins with postsynaptic neogenin-1 (Neo1) into a transsynaptic complex (with Neo1 in the PSD membrane, Fig. 6).
Evidence tracking, Biological System:Cell-free system
Intact tissue
Evidence tracking, Protein Targeting:Genetic transformation (eg; knockout, knockin, mutations)
Over-expression
Evidence tracking, Experiment Assay:Electrophysiology (generic)
Confocal
Non-tracable Author Statement (NAS):This annotation required some inference over additional information/literature, and is not solely based on observations made in the annotated paper by its original authors.
Annotator(s):Frank Koopmans (ORCID:0000-0002-4973-5732)
Guus Smit (ORCID:0000-0002-2286-1587)
Matthijs Verhage (ORCID:0000-0002-2514-0216)
Lab:Department of Functional Genomics, Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
SynGO annotation ID:4991
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology