chr6-152233801-C-A

Variant names:

• chr6-152233801-C-A
• rs769943110
• NM_182961.4:c.20692G>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_182961.4(SYNE1):​c.20692G>T​(p.Val6898Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V6898I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: SYNE1 NM_182961.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.58
• 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: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Ambry Genetics, Orphanet, PanelApp Australia, G2P
• Emery-Dreifuss muscular dystrophy 4, autosomal dominant

  Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: Illumina, Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• arthrogryposis multiplex congenita 3, myogenic type

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae)
• 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: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.778

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNE1	NM_182961.4	MANE Select	c.20692G>T	p.Val6898Phe	missense	Exon 112 of 146	NP_892006.3	Q8NF91-1
	SYNE1	NM_033071.5		c.20479G>T	p.Val6827Phe	missense	Exon 111 of 146	NP_149062.2	Q8NF91-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNE1	ENST00000367255.10	TSL:1 MANE Select	c.20692G>T	p.Val6898Phe	missense	Exon 112 of 146	ENSP00000356224.5	Q8NF91-1
	SYNE1	ENST00000423061.6	TSL:1	c.20479G>T	p.Val6827Phe	missense	Exon 111 of 146	ENSP00000396024.1	A0A0C4DG40
	SYNE1	ENST00000367256.9	TSL:1	n.4384G>T		non_coding_transcript_exon	Exon 27 of 61

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461880 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.0000187 AC: 1 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.57
BayesDel_addAF	Uncertain	0.075	D
BayesDel_noAF	Benign	-0.13
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.78	D
Eigen	Benign	0.15
Eigen_PC	Benign	0.027
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.097	D
MetaRNN	Pathogenic	0.78	D
MetaSVM	Benign	-0.71	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		2.6
PrimateAI	Benign	0.45	T
PROVEAN	Uncertain	-4.0	D
REVEL	Uncertain	0.33
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.75
MutPred		0.50		Gain of ubiquitination at K6901 (P = 0.1797)
MVP		0.60
MPC		0.20
ClinPred		0.99	D
GERP RS		3.3
Varity_R		0.45
gMVP		0.60
Mutation Taster		=89/11	polymorphism

Splicing

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

Other links and lift over

dbSNP: rs769943110; hg19: chr6-152554936;