Annotated protein:Calsyntenin-1 (Alcadein-alpha) (Alc-alpha) [Cleaved into: Soluble Alc-alpha (SAlc-alpha); CTF1-alpha (C-terminal fragment 1-alpha)]. Gene symbol: CLSTN1. Taxonomy: Mus musculus (Mouse). Uniprot ID: Q9EPL2
antibody wiki:
SynGO gene info:SynGO data @ CLSTN1
Ontology domain:Biological Process
SynGO term:neurotransmitter receptor transport to postsynaptic membrane (GO:0098969)
Synapse type(s):hippocampus, glutamatergic
Annotated paper:Ster J, et al. "Calsyntenin-1 regulates targeting of dendritic NMDA receptors and dendritic spine maturation in CA1 hippocampal pyramidal cells during postnatal development" J Neurosci. 2014 Jun 25;34(26):8716-27 PMID:24966372
Figure(s):Fig.3, 5-8
Annotation description:Fig.3: "Excitatory synaptic transmission is reduced in juvenile Cst-1 KO mice"

Figure 5: "Calsyntenin-1 colocalizes with dendritic endosomes that transport NMDA receptor subunits"
- "the considerable degree of colocalization of dendritic calsyntenin-1 puncta with both the transferrin receptor (TfR), a marker for recycling endosomes, as well as with APP, which is carried in early endosomal calsyntenin-1 vesicles (Steuble et al., 2012), indicates that dendritic calsyntenin-1-associated vesicles are involved in transport of both early and recycling endosomal organelles (Fig. 5A,B). Importantly, dendritic calsyntenin-1 also colocalizes with NMDA receptor subunits (Fig. 5C,D)."

Figure 6: "Levels of GluN2B subunit-containing NMDA receptors are increased in juvenile Cst-1 KO mice"
Figure 7: "Enhanced NMDA receptor-dependent LTP at Schaffer collateral-CA1 pyramidal cell synapses in juvenile Cst-1 KO mice"
Figure 8: "The spine-type distribution is altered in CA1 pyramidal cells from juvenile Cst-1 KO mice"

Note: the transport defect proposed by the authors is considered the primary function of the protein in this paper. The downstream functional consequence are not annotated separately.
Evidence tracking, Biological System:Intact tissue
Cultured neurons
Evidence tracking, Protein Targeting:Genetic transformation (eg; knockout, knockin, mutations)
Antibody (detection)
Evidence tracking, Experiment Assay:Confocal
Whole-cell patch clamp
Field recordings
Western blot
Annotator(s):Pim van Nierop (ORCID:0000-0003-0593-3443)
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:2828
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology