rs758756977

Variant names:

• chr6-152471591-A-G
• rs758756977
• NM_182961.4:c.1632+6T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BP6_Very_Strong

The NM_182961.4(SYNE1):​c.1632+6T>C variant causes a splice region, intron change. The variant allele was found at a frequency of 0.000049 in 1,613,378 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000050 (0 hom.)
• Consequence: SYNE1 NM_182961.4 splice_region, intron
• Scores: Splicing: ADA: 0.6365
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 5.76
• Publications: 0 publications found

Genes affected

SYNE1 (HGNC:17089): (spectrin repeat containing nuclear envelope protein 1) This gene encodes a spectrin repeat containing protein expressed in skeletal and smooth muscle, and peripheral blood lymphocytes, that localizes to the nuclear membrane. Mutations in this gene have been associated with autosomal recessive spinocerebellar ataxia 8, also referred to as autosomal recessive cerebellar ataxia type 1 or recessive ataxia of Beauce. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

SYNE1 Gene-Disease associations (from GenCC):

• autosomal recessive ataxia, Beauce type

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Orphanet, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
• arthrogryposis multiplex congenita 3, myogenic type

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• Emery-Dreifuss muscular dystrophy 4, autosomal dominant

  Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Illumina
• autosomal dominant Emery-Dreifuss muscular dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• autosomal recessive myogenic arthrogryposis multiplex congenita

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.5).
• BP6: Variant 6-152471591-A-G is Benign according to our data. Variant chr6-152471591-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 386893.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182961.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNE1	NM_182961.4	MANE Select	c.1632+6T>C		splice_region intron	N/A	NP_892006.3
	SYNE1	NM_033071.5		c.1653+6T>C		splice_region intron	N/A	NP_149062.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNE1	ENST00000367255.10	TSL:1 MANE Select	c.1632+6T>C		splice_region intron	N/A	ENSP00000356224.5
	SYNE1	ENST00000423061.6	TSL:1	c.1653+6T>C		splice_region intron	N/A	ENSP00000396024.1
	SYNE1	ENST00000466159.6	TSL:1	c.1632+6T>C		splice_region intron	N/A	ENSP00000446021.1

Frequencies

GnomAD3 genomes AF: 0.0000395 AC: 6 AN: 152054 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000393

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000271 AC: 68 AN: 251248 AF XY: 0.000155

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00197

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000500 AC: 73 AN: 1461324 Hom.: 0 Cov.: 31 AF XY: 0.0000358 AC XY: 26 AN XY: 726976

African (AFR) AF: 0.00 AC: 0 AN: 33458

American (AMR) AF: 0.00161 AC: 72 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26112

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111560

Other (OTH) AF: 0.00 AC: 0 AN: 60366

GnomAD4 genome AF: 0.0000395 AC: 6 AN: 152054 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74268

African (AFR) AF: 0.00 AC: 0 AN: 41410

American (AMR) AF: 0.000393 AC: 6 AN: 15248

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10590

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2086

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000907

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	1	Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant (1)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	20
DANN	Benign	0.86
PhyloP100		5.8

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.64
dbscSNV1_RF	Benign	0.55

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs758756977; hg19: chr6-152792726;