chr1-32695137-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_030786.3(SYNC):ā€‹c.961A>Gā€‹(p.Ser321Gly) 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 1,455,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

SYNC
NM_030786.3 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.73
Variant links:
Genes affected
SYNC (HGNC:28897): (syncoilin, intermediate filament protein) This gene encodes a member of the intermediate filament family which contains an N-terminal head domain, followed by a central coiled-coil region and a short C-terminal tail. The protein is highly expressed in skeletal and cardiac muscle. The protein links the dystrophin associated protein complex (DAPC) to desmin filaments in muscle and may have a structural role in striated muscle. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30737036).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SYNCNM_030786.3 linkuse as main transcriptc.961A>G p.Ser321Gly missense_variant 2/5 ENST00000409190.8 NP_110413.3 Q9H7C4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SYNCENST00000409190.8 linkuse as main transcriptc.961A>G p.Ser321Gly missense_variant 2/52 NM_030786.3 ENSP00000386439.3 Q9H7C4-1
SYNCENST00000373484.4 linkuse as main transcriptc.961A>G p.Ser321Gly missense_variant 2/42 ENSP00000362583.3 Q9H7C4-2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000128
AC:
3
AN:
234492
Hom.:
0
AF XY:
0.0000157
AC XY:
2
AN XY:
127742
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000173
Gnomad SAS 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:
0.00000137
AC:
2
AN:
1455818
Hom.:
0
Cov.:
30
AF XY:
0.00000276
AC XY:
2
AN XY:
723924
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000506
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 26, 2024The c.961A>G (p.S321G) alteration is located in exon 2 (coding exon 2) of the SYNC gene. This alteration results from a A to G substitution at nucleotide position 961, causing the serine (S) at amino acid position 321 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.37
T;.
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.010
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.71
T;T
M_CAP
Benign
0.060
D
MetaRNN
Benign
0.31
T;T
MetaSVM
Uncertain
-0.10
T
MutationAssessor
Benign
0.34
N;N
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-1.4
N;N
REVEL
Uncertain
0.39
Sift
Benign
0.49
T;T
Sift4G
Benign
0.17
T;T
Polyphen
0.14
B;B
Vest4
0.51
MutPred
0.29
Loss of phosphorylation at S321 (P = 0.0229);Loss of phosphorylation at S321 (P = 0.0229);
MVP
0.59
MPC
0.40
ClinPred
0.18
T
GERP RS
4.4
Varity_R
0.18
gMVP
0.34

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1480411796; hg19: chr1-33160738; API