12-53299749-A-T

Position:

• chr12-53299749-A-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_021640.4(MYG1):​c.12A>T​(p.Gln4His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: MYG1 NM_021640.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.15

Genes affected

MYG1 (HGNC:17590): (MYG1 exonuclease) Predicted to enable nuclease activity. Predicted to be involved in nucleic acid phosphodiester bond hydrolysis. Predicted to act upstream of or within locomotory exploration behavior. Located in mitochondrion and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MYG1-AS1 (HGNC:54810): (MYG1 antisense RNA 1)

(HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05026284).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYG1	NM_021640.4	c.12A>T	p.Gln4His	missense_variant	1/7	ENST00000267103.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYG1	ENST00000267103.10	c.12A>T	p.Gln4His	missense_variant	1/7	1	NM_021640.4	P1
MYG1-AS1	ENST00000550263.4	n.233+394T>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 59

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.089
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.80
CADD	Benign	4.7
DANN	Benign	0.75
DEOGEN2	Benign	0.053	T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.0033	N
LIST_S2	Benign	0.24	T
M_CAP	Benign	0.0025	T
MetaRNN	Benign	0.050	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.0	N
MutationTaster	Benign	1.0	P
PROVEAN	Benign	0.38	N
REVEL	Benign	0.026
Sift	Benign	0.11	T
Sift4G	Benign	0.13	T
Polyphen		0.0	B
Vest4		0.027
MutPred		0.22		Gain of catalytic residue at M1 (P = 0.034);
MVP		0.040
MPC		0.14
ClinPred		0.084	T
GERP RS		-4.5
Varity_R		0.053
gMVP		0.44

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

Publications

LitVar

Other links and lift over

dbSNP: rs1534283; hg19: chr12-53693533;