7-843397-G-A

Variant names:

• chr7-843397-G-A
• rs200430189
• NM_001130965.3:c.535G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001367651.1(SUN1):​c.754G>A​(p.Ala252Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000282 in 1,612,664 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign 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. A252V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.00017 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00029 (0 hom.)
• Consequence: SUN1 NM_001367651.1 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: -1.21
• Publications: 3 publications found

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]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.049177527).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001367651.1. 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
	SUN1	NM_001130965.3	MANE Select	c.535G>A	p.Ala179Thr	missense	Exon 5 of 19	NP_001124437.1
	SUN1	NM_001367651.1		c.754G>A	p.Ala252Thr	missense	Exon 6 of 22	NP_001354580.1
	SUN1	NM_001367705.1		c.535G>A	p.Ala179Thr	missense	Exon 6 of 23	NP_001354634.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SUN1	ENST00000401592.6	TSL:1 MANE Select	c.535G>A	p.Ala179Thr	missense	Exon 5 of 19	ENSP00000384015.1
	SUN1	ENST00000429178.5	TSL:1	c.28G>A	p.Ala10Thr	missense	Exon 1 of 17	ENSP00000409909.1
	SUN1	ENST00000457378.6	TSL:1	c.598G>A	p.Ala200Thr	missense	Exon 7 of 7	ENSP00000395952.2

Frequencies

GnomAD3 genomes AF: 0.000171 AC: 26 AN: 152244 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000965

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000576

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000265

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.000182 AC: 45 AN: 247794 AF XY: 0.000141

Gnomad AFR exome AF: 0.0000657

Gnomad AMR exome AF: 0.0000874

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000506

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000284

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000293 AC: 428 AN: 1460302 Hom.: 0 Cov.: 33 AF XY: 0.000293 AC XY: 213 AN XY: 726176

African (AFR) AF: 0.0000299 AC: 1 AN: 33462

American (AMR) AF: 0.0000897 AC: 4 AN: 44612

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

East Asian (EAS) AF: 0.000252 AC: 10 AN: 39678

South Asian (SAS) AF: 0.00 AC: 0 AN: 86086

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53244

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.000355 AC: 394 AN: 1110990

Other (OTH) AF: 0.000315 AC: 19 AN: 60352

GnomAD4 genome AF: 0.000171 AC: 26 AN: 152362 Hom.: 0 Cov.: 33 AF XY: 0.000121 AC XY: 9 AN XY: 74510

African (AFR) AF: 0.0000962 AC: 4 AN: 41584

American (AMR) AF: 0.00 AC: 0 AN: 15310

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000578 AC: 3 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000265 AC: 18 AN: 68032

Other (OTH) AF: 0.000473 AC: 1 AN: 2114

Alfa AF: 0.000362 Hom.: 1

Bravo AF: 0.000204

ESP6500AA AF: 0.000248 AC: 1

ESP6500EA AF: 0.000361 AC: 3

ExAC AF: 0.000165 AC: 20

EpiCase AF: 0.000327

EpiControl AF: 0.000356

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Emery-Dreifuss muscular dystrophy (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.50	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	0.16
DANN	Benign	0.96
DEOGEN2	Benign	0.0034	T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.6
FATHMM_MKL	Benign	0.022	N
LIST_S2	Benign	0.59	T
M_CAP	Benign	0.0078	T
MetaRNN	Benign	0.049	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	N
PhyloP100		-1.2
PrimateAI	Benign	0.21	T
PROVEAN	Benign	-0.90	N
REVEL	Benign	0.18
Sift	Benign	0.95	T
Sift4G	Benign	0.42	T
Polyphen		0.23	B
Vest4		0.060
MVP		0.42
MPC		0.098
ClinPred		0.015	T
GERP RS		-8.8
PromoterAI		0.025	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
gMVP		0.071
Mutation Taster		=98/2	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs200430189; hg19: chr7-883034; COSMIC: COSV61778831; COSMIC: COSV61778831;