NM_005920.4:c.54+297A>C

Variant names:

• chr1-156482942-T-G
• rs6666307
• NM_005920.4:c.54+297A>C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PM2 BP4_Strong BS2

The NM_005920.4(MEF2D):​c.54+297A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 152,270 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000033 (0 hom., cov: 33)
• Consequence: MEF2D NM_005920.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.817
• Publications: 4 publications found

Genes affected

MEF2D (HGNC:6997): (myocyte enhancer factor 2D) This gene is a member of the myocyte-specific enhancer factor 2 (MEF2) family of transcription factors. Members of this family are involved in control of muscle and neuronal cell differentiation and development, and are regulated by class II histone deacetylases. Fusions of the encoded protein with Deleted in Azoospermia-Associated Protein 1 (DAZAP1) due to a translocation have been found in an acute lymphoblastic leukemia cell line, suggesting a role in leukemogenesis. The encoded protein may also be involved in Parkinson disease and myotonic dystrophy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2012]

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BS2: High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEF2D	NM_005920.4	c.54+297A>C		intron_variant	Intron 2 of 11	ENST00000348159.9	NP_005911.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MEF2D	ENST00000348159.9	c.54+297A>C		intron_variant	Intron 2 of 11	1	NM_005920.4	ENSP00000271555.5
MEF2D	ENST00000360595.7	c.54+297A>C		intron_variant	Intron 2 of 10	1		ENSP00000353803.3
MEF2D	ENST00000464356.6	c.54+297A>C		intron_variant	Intron 1 of 9	5		ENSP00000476788.1
MEF2D	ENST00000475587.2	n.54+297A>C		intron_variant	Intron 2 of 8	5		ENSP00000477413.1

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152270 Hom.: 0 Cov.: 33 AF XY: 0.0000671 AC XY: 5 AN XY: 74466

African (AFR) AF: 0.000120 AC: 5 AN: 41546

American (AMR) AF: 0.00 AC: 0 AN: 15302

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

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

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.00 Hom.: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.18
DANN	Benign	0.69
PhyloP100		-0.82
PromoterAI		-0.014	Neutral

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: rs6666307; hg19: chr1-156452734;