SV2A

Last updated
SV2A
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases SV2A , SV2, synaptic vesicle glycoprotein 2A
External IDs OMIM: 185860; MGI: 1927139; HomoloGene: 32237; GeneCards: SV2A; OMA:SV2A - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_014849
NM_001278719
NM_001328674
NM_001328675

NM_022030

RefSeq (protein)

NP_001265648
NP_001315603
NP_001315604
NP_055664

NP_071313

Location (UCSC) Chr 1: 149.9 – 149.92 Mb Chr 3: 96.09 – 96.1 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Synaptic vesicle glycoprotein 2A (SV2A) is a transmembrane protein belonging to a family of keratan sulfate proteoglycans, located on the synaptic vesicles of mammalian neuronal and endocrine cells. It's encoded by the SV2A gene. [5] [6] [7]

Contents

SV2A is the most widely expressed isoform of the SV2 family (which also includes the SV2B and SV2C proteins) found in all brain regions. [8] The role of the SV2 proteins is not well understood, however they are thought to be involved in regulating vesicular processes. [8]

The SV2A protein is a target of the anti-epileptic drugs (anticonvulsants) levetiracetam and brivaracetam [9] but it is not clear how these drug affect SV2A activity. [10]

Localisation

SV2A is differentially expressed in both inhibitory GABA ergic and excitatory glutamatergic terminals [11] however it is not expressed in all synapses [12] as was previously thought. [13] There is a slightly stronger colocalisation between SV2A and GABA than glutamate [14] and the association differs across brain regions and changes with developmental stages. [15]

SV2A PET

Several PET radiotracers targeting SV2A have been developed, allowing for measuring SV2A density in-vivo: [11C]LEV, [11C]UCB-A, [11C]-UCB-H, [18F]UCB-J, [18F]Syn-VesT-1, [18F]Syn-VesT-2, and [18F]SDM-16. SV2A density has been used as a proxy for measuring in vivo synaptic density. [16] [17] [18] [19]

See also

Related Research Articles

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References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000159164 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000038486 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Bajjalieh SM, Peterson K, Linial M, Scheller RH (Mar 1993). "Brain contains two forms of synaptic vesicle protein 2". Proceedings of the National Academy of Sciences of the United States of America. 90 (6): 2150–4. Bibcode:1993PNAS...90.2150B. doi: 10.1073/pnas.90.6.2150 . PMC   46043 . PMID   7681585.
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  7. "Entrez Gene: SV2A synaptic vesicle glycoprotein 2A".
  8. 1 2 Rossi, Rachele; Arjmand, Shokouh; Bærentzen, Simone Larsen; Gjedde, Albert; Landau, Anne M. (2022-04-28). "Synaptic Vesicle Glycoprotein 2A: Features and Functions". Frontiers in Neuroscience. 16: 864514. doi: 10.3389/fnins.2022.864514 . ISSN   1662-4548. PMC   9096842 . PMID   35573314.
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  12. Wong, Theresa; Qiu, Zhen; Notman, Beverly; Tavares, Adriana; Smith, Colin; Grant, Seth G. N. (2024-07-18), SV2A is expressed in synapse subpopulations in mouse and human brain: implications for PET radiotracer studies, doi:10.1101/2024.07.15.603608 , retrieved 2024-10-02
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  15. Vanoye-Carlo, América; Gómez-Lira, Gisela (July 2019). "Differential expression of SV2A in hippocampal glutamatergic and GABAergic terminals during postnatal development". Brain Research. 1715: 73–83. doi:10.1016/j.brainres.2019.03.021. PMID   30905653.
  16. Onwordi, Ellis Chika; Halff, Els F.; Whitehurst, Thomas; Mansur, Ayla; Cotel, Marie-Caroline; Wells, Lisa; Creeney, Hannah; Bonsall, David; Rogdaki, Maria; Shatalina, Ekaterina; Reis Marques, Tiago; Rabiner, Eugenii A.; Gunn, Roger N.; Natesan, Sridhar; Vernon, Anthony C. (2020-01-14). "Synaptic density marker SV2A is reduced in schizophrenia patients and unaffected by antipsychotics in rats". Nature Communications. 11 (1): 246. Bibcode:2020NatCo..11..246O. doi:10.1038/s41467-019-14122-0. ISSN   2041-1723. PMC   6959348 . PMID   31937764.
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  18. Yoon, Jong H.; Zhang, Zhener; Mormino, Elizabeth; Davidzon, Guido; Minzenberg, Michael J.; Ballon, Jacob; Kalinowski, Agnieszka; Hardy, Kate; Naganawa, Mika; Carson, Richard E.; Khalighi, Mehdi; Park, Jun Hyung; Levinson, Douglas F.; Chin, Frederick T. (May 2023). "Reductions in synaptic marker SV2A in early-course Schizophrenia". Journal of Psychiatric Research. 161: 213–217. doi:10.1016/j.jpsychires.2023.02.026. PMID   36934603.
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Further reading