7-872560-C-T

Position:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The ENST00000401592.6(SUN1):​c.2239C>T​(p.Leu747=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000302 in 1,578,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0015 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

SUN1
ENST00000401592.6 splice_region, synonymous

Scores

2
Splicing: ADA: 0.08896
2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.91
Variant links:
Genes affected
SUN1 (HGNC:18587): (Sad1 and UNC84 domain containing 1) This gene is a member of the unc-84 homolog family and encodes a nuclear envelope protein with an Unc84 (SUN) domain. The protein is involved in nuclear anchorage and migration. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2019]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 7-872560-C-T is Benign according to our data. Variant chr7-872560-C-T is described in ClinVar as [Benign]. Clinvar id is 461653.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=1.91 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SUN1NM_001130965.3 linkuse as main transcriptc.2239C>T p.Leu747= splice_region_variant, synonymous_variant 18/19 ENST00000401592.6 NP_001124437.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SUN1ENST00000401592.6 linkuse as main transcriptc.2239C>T p.Leu747= splice_region_variant, synonymous_variant 18/191 NM_001130965.3 ENSP00000384015 P3O94901-8

Frequencies

GnomAD3 genomes
AF:
0.00145
AC:
221
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00512
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.0000294
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.000417
AC:
78
AN:
186882
Hom.:
0
AF XY:
0.000340
AC XY:
34
AN XY:
99998
show subpopulations
Gnomad AFR exome
AF:
0.00629
Gnomad AMR exome
AF:
0.000326
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000126
Gnomad OTH exome
AF:
0.000202
GnomAD4 exome
AF:
0.000177
AC:
253
AN:
1426060
Hom.:
0
Cov.:
30
AF XY:
0.000149
AC XY:
105
AN XY:
705836
show subpopulations
Gnomad4 AFR exome
AF:
0.00633
Gnomad4 AMR exome
AF:
0.000333
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000123
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000640
Gnomad4 OTH exome
AF:
0.000389
GnomAD4 genome
AF:
0.00146
AC:
223
AN:
152282
Hom.:
0
Cov.:
32
AF XY:
0.00136
AC XY:
101
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00515
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.0000671
Hom.:
0
Bravo
AF:
0.00190
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Emery-Dreifuss muscular dystrophy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 13, 2024- -
SUN1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 02, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
5.3
DANN
Benign
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.089
dbscSNV1_RF
Benign
0.34
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: rs143543329; hg19: chr7-912197; API