chr17-1781371-G-A

Variant names:

• chr17-1781371-G-A
• rs770179582
• NM_052928.3:c.2330C>T

Variant summary

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

The NM_052928.3(SMYD4):​c.2330C>T​(p.Pro777Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,846 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P777R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SMYD4 NM_052928.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.93
• Publications: 0 publications found

Genes affected

SMYD4 (HGNC:21067): (SET and MYND domain containing 4) Predicted to enable metal ion binding activity and methyltransferase activity. Involved in heart development. Predicted to be located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_052928.3. 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
	SMYD4	NM_052928.3	MANE Select	c.2330C>T	p.Pro777Leu	missense	Exon 11 of 11	NP_443160.2	Q8IYR2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SMYD4	ENST00000305513.12	TSL:1 MANE Select	c.2330C>T	p.Pro777Leu	missense	Exon 11 of 11	ENSP00000304360.7	Q8IYR2
	SMYD4	ENST00000954772.1		c.2330C>T	p.Pro777Leu	missense	Exon 11 of 11	ENSP00000624831.1
	SMYD4	ENST00000954774.1		c.2330C>T	p.Pro777Leu	missense	Exon 11 of 11	ENSP00000624833.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251458 AF XY: 0.00

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461846 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727228

African (AFR) AF: 0.00 AC: 0 AN: 33478

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: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5736

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

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 31

Alfa AF: 0.0000205 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.097
BayesDel_addAF	Benign	-0.059	T
BayesDel_noAF	Benign	-0.32
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.049	T
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.65	T
M_CAP	Benign	0.053	D
MetaRNN	Uncertain	0.60	D
MetaSVM	Benign	-0.98	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		4.9
PrimateAI	Benign	0.38	T
PROVEAN	Pathogenic	-5.9	D
REVEL	Benign	0.27
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.46
MutPred		0.57		Loss of disorder (P = 0.0707)
MVP		0.67
MPC		0.42
ClinPred		0.99	D
GERP RS		4.0
Varity_R		0.63
gMVP		0.49

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

Other links and lift over

dbSNP: rs770179582; hg19: chr17-1684665;