5-176296267-G-A

Variant names:

• chr5-176296267-G-A
• rs763476126
• NM_001308195.2:c.1681G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001308195.2(SIMC1):​c.1681G>A​(p.Ala561Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,250 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: SIMC1 NM_001308195.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.724
• Publications: 0 publications found

Genes affected

SIMC1 (HGNC:24779): (SUMO interacting motifs containing 1) Enables SUMO polymer binding activity and peptidase inhibitor activity. Predicted to be involved in negative regulation of peptidase activity. Located in sarcomere. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11822167).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001308195.2. 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
	SIMC1	NM_001308195.2	MANE Select	c.1681G>A	p.Ala561Thr	missense	Exon 4 of 10	NP_001295124.1	Q8NDZ2-5
	SIMC1	NM_001308196.2		c.1624G>A	p.Ala542Thr	missense	Exon 6 of 12	NP_001295125.1	Q8NDZ2-1
	SIMC1	NM_198567.6		c.379G>A	p.Ala127Thr	missense	Exon 3 of 9	NP_940969.3	Q8NDZ2-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIMC1	ENST00000429602.7	TSL:1 MANE Select	c.1681G>A	p.Ala561Thr	missense	Exon 4 of 10	ENSP00000410552.3	Q8NDZ2-5
	SIMC1	ENST00000443967.5	TSL:1	c.1624G>A	p.Ala542Thr	missense	Exon 6 of 12	ENSP00000406571.1	Q8NDZ2-1
	SIMC1	ENST00000938813.1		c.1681G>A	p.Ala561Thr	missense	Exon 4 of 11	ENSP00000608872.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152188 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00000810 AC: 2 AN: 246768 AF XY: 0.0000149

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

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: 0.00000274 AC: 4 AN: 1461062 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 726784

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33454

American (AMR) AF: 0.00 AC: 0 AN: 44654

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26118

East Asian (EAS) AF: 0.00 AC: 0 AN: 39688

South Asian (SAS) AF: 0.0000464 AC: 4 AN: 86220

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53388

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111428

Other (OTH) AF: 0.00 AC: 0 AN: 60352

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000000000000666134), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152188 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74336

African (AFR) AF: 0.0000241 AC: 1 AN: 41440

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.088
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.011	T
Eigen	Uncertain	0.19
Eigen_PC	Benign	0.22
FATHMM_MKL	Benign	0.56	D
LIST_S2	Benign	0.83	T
M_CAP	Benign	0.0081	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.0	L
PhyloP100		0.72
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.070
Sift	Benign	0.37	T
Sift4G	Benign	0.33	T
Polyphen		0.78	P
Vest4		0.13
MutPred		0.21		Gain of sheet (P = 0.0344)
MVP		0.53
MPC		1.0
ClinPred		0.49	T
GERP RS		3.5
Varity_R		0.066
gMVP		0.12
Mutation Taster		=82/18	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs763476126; hg19: chr5-175723270;