Annotated protein:Proline-rich transmembrane protein 1 (Dispanin subfamily D member 1) (DSPD1) (Synapse differentiation-induced protein 4) (SynDIG4). Gene symbol: PRRT1. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: Q6MG82
antibody wiki:
SynGO gene info:SynGO data @ PRRT1
Ontology domain:Cellular Component
SynGO term:integral component of postsynaptic membrane (GO:0099055)
Synapse type(s):hippocampus, glutamatergic
Annotated paper:Kirk LM, et al. "Distribution of the SynDIG4/proline-rich transmembrane protein 1 in rat brain" J Comp Neurol. 2016 Aug 1;524(11):2266-80 PMID:26660156
Figure(s):Figure 8-9
Annotation description:PRRT1/SynDIG4 is a brain-specific type II transmembrane protein (extracellular C-terminus and intracellular N-terminus, Figure 2-3). Biochemical fractionation from adult rat brain tissue shows SynDIG4 is enriched in synaptosomes but not the postsynaptic density (Figure 8). Immunostaining in culture hippocampal neurons shows endogenous SynDIG4 protein is enriched at extrasynaptic sites along neuronal processes where is co-localizes with GluA1-AMPA receptors (Figure 9).

Figure 1 demonstrates the specificity of the SynDIG4 antibody used in this study using COS cells and brain tissue. Table 1 describes conditions used for SynDIG4 antibodies and other antibodies used in this paper.
Evidence tracking, Biological System:Intact tissue
Cultured neurons
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Confocal
Western blot
Biochemical fractionation (generic)
Annotator(s):Hana Goldschmidt (ORCID:0000-0002-5676-366X)
Richard Huganir (ORCID:0000-0001-9783-5183)
Lab:Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA and Kavli Neuroscience Discovery Institute, Johns Hopkins University, Baltimore, MD 21205, USA
SynGO annotation ID:2181
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology