FAME2 STARD7

Disease ID
FAME2
Gene ID
STARD7

Disease

Name
Familial adult myoclonic epilepsy 2
Inheritance
Autosomal dominant
Description
Finger, hand tremor with later-onset myoclonus and generalised tonic-clonic seizures1 .
Prevalence
This repeat expansion is typically found in individuals of European ancestry2 .
Age of Onset(Typical)Years4  6012  30
Age of Onset Details
Typical: 12-30; Range: 4-603 .

Locus

Details
Disease caused by novel insertion of pathogenic motif (not found in any controls); size of pathogenic motif observed in two probands ranged from ~274-558 repeats, while the expanded reference motif ranged from 340-3903 .
Mechanism
GoF?
RNA toxicity theorized3,4 .
Year
20193
Location in Gene
Intron 1
Gene Strand

Alleles

Ref. Motif
AAAAT
Pathogenic (ref.)
AAATG
Pathogenic (gene)
ATTTC
Unknown (ref.)
AAAAA, AAAAC, AAACC, AAACG, AAACT, AACTC, AACTG, AATAC, AATAG, ATAAC
Unknown (gene)
TTTTT, GTTTT, GGTTT, CGTTT, AGTTT, AGTTG, AGTTC, ATTGT, ATTCT, ATGTT
PathogenicUnits274  558

gnomAD

References

Direct supporting references for info on this page.

1
Repeat expansion disorders.
Zhongbo,Chen, Huw R,Morris, James,Polke, Nicholas W,Wood, Sonia,Gandhi, Mina,Ryten, Henry,Houlden, Arianna,Tucci
Practical neurology · 2024-09-30
pmid:39349043
2
Neurological disorders caused by novel non-coding repeat expansions: clinical features and differential diagnosis.
Elisa,Vegezzi, Hiroyuki,Ishiura, D Cristopher,Bragg, David,Pellerin, Francesca,Magrinelli, Riccardo,Currò, Stefano,Facchini, Arianna,Tucci, John,Hardy, Nutan,Sharma, Matt C,Danzi, Stephan,Zuchner, Bernard,Brais, Mary M,Reilly, Shoji,Tsuji, Henry,Houlden, Andrea,Cortese
The Lancet. Neurology · 2024-07-01
pmid:38876750
3
Intronic ATTTC repeat expansions in STARD7 in familial adult myoclonic epilepsy linked to chromosome 2.
Mark A,Corbett, Thessa,Kroes, Liana,Veneziano, Mark F,Bennett, Rahel,Florian, Amy L,Schneider, Antonietta,Coppola, Laura,Licchetta, Silvana,Franceschetti, Antonio,Suppa, Aaron,Wenger, Davide,Mei, Manuela,Pendziwiat, Sabine,Kaya, Massimo,Delledonne, Rachel,Straussberg, Luciano,Xumerle, Brigid,Regan, Douglas,Crompton, Anne-Fleur,van Rootselaar, Anthony,Correll, Rachael,Catford, Francesca,Bisulli, Shreyasee,Chakraborty, Sara,Baldassari, Paolo,Tinuper, Kirston,Barton, Shaun,Carswell, Martin,Smith, Alfredo,Berardelli, Renee,Carroll, Alison,Gardner, Kathryn L,Friend, Ilan,Blatt, Michele,Iacomino, Carlo,Di Bonaventura, Salvatore,Striano, Julien,Buratti, Boris,Keren, Caroline,Nava, Sylvie,Forlani, Gabrielle,Rudolf, Edouard,Hirsch, Eric,Leguern, Pierre,Labauge, Simona,Balestrini, Josemir W,Sander, Zaid,Afawi, Ingo,Helbig, Hiroyuki,Ishiura, Shoji,Tsuji, Sanjay M,Sisodiya, Giorgio,Casari, Lynette G,Sadleir, Riaan,van Coller, Marina A J,Tijssen, Karl Martin,Klein, Arn M J M,van den Maagdenberg, Federico,Zara, Renzo,Guerrini, Samuel F,Berkovic, Tommaso,Pippucci, Laura,Canafoglia, Melanie,Bahlo, Pasquale,Striano, Ingrid E,Scheffer, Francesco,Brancati, Christel,Depienne, Jozef,Gecz
Nature communications · 2019-10-29
pmid:31664034
4
Sequence composition changes in short tandem repeats: heterogeneity, detection, mechanisms and clinical implications.
Indhu-Shree,Rajan-Babu, Egor,Dolzhenko, Michael A,Eberle, Jan M,Friedman
Nature reviews. Genetics · 2024-03-11
pmid:38467784

Additional Literature

Additional literature related to this locus.

Raw PubMed search results
(All PubMed results returned by searching for this gene, tandem repeats, and disease, in medline format)

DNA analysis of benign adult familial myoclonic epilepsy reveals associations between the pathogenic TTTCA repeat insertion in SAMD12 and the nonpathogenic TTTTA repeat expansion in TNRC6A.
Akane,Terasaki, Masayuki,Nakamura, Yuka,Urata, Hanae,Hiwatashi, Izumi,Yokoyama, Takeshi,Yasuda, Teiichi,Onuma, Kazumaru,Wada, Sunao,Kaneko, Rumiko,Kan, Shin-Ichi,Niwa, Ohiko,Hashimoto, Osamu,Komure, Yu-Ichi,Goto, Yuko,Yamagishi, Misa,Nakano, Yoshihiko,Furusawa, Akira,Sano
Journal of human genetics · 2020-10-10
pmid:33040085