5-137887292-G-C

Variant names:

• chr5-137887292-G-C
• rs200075800
• NM_006790.3:c.1404G>C

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_Strong BP6_Moderate BP7 BS1 BS2

The NM_006790.3(MYOT):​c.1404G>C​(p.Gly468Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: MYOT NM_006790.3 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0440
• Publications: 0 publications found

Genes affected

MYOT (HGNC:12399): (myotilin) This gene encodes a cystoskeletal protein which plays a significant role in the stability of thin filaments during muscle contraction. This protein binds F-actin, crosslinks actin filaments, and prevents latrunculin A-induced filament disassembly. Mutations in this gene have been associated with limb-girdle muscular dystrophy and myofibrillar myopathies. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined.[provided by RefSeq, Oct 2008]

PKD2L2-DT (HGNC:55557): (PKD2L2 divergent transcript)

ACMG classification

Our verdict: Benign. The variant received -15 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.63).
• BP6: Variant 5-137887292-G-C is Benign according to our data. Variant chr5-137887292-G-C is described in ClinVar as Likely_benign. ClinVar VariationId is 464367.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-0.044 with no splicing effect.
• BS1: Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.00000684 (10/1461762) while in subpopulation AMR AF = 0.000201 (9/44724). AF 95% confidence interval is 0.000104. There are 0 homozygotes in GnomAdExome4. There are 6 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.
• BS2: High AC in GnomAdExome4 at 10 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006790.3. 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
	MYOT	NM_006790.3	MANE Select	c.1404G>C	p.Gly468Gly	synonymous	Exon 10 of 10	NP_006781.1
	MYOT	NM_001300911.2		c.1059G>C	p.Gly353Gly	synonymous	Exon 11 of 11	NP_001287840.1
	MYOT	NM_001135940.2		c.852G>C	p.Gly284Gly	synonymous	Exon 10 of 10	NP_001129412.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYOT	ENST00000239926.9	TSL:1 MANE Select	c.1404G>C	p.Gly468Gly	synonymous	Exon 10 of 10	ENSP00000239926.4
	MYOT	ENST00000515645.1	TSL:2	c.1059G>C	p.Gly353Gly	synonymous	Exon 11 of 11	ENSP00000426281.1
	MYOT	ENST00000421631.6	TSL:2	c.852G>C	p.Gly284Gly	synonymous	Exon 10 of 10	ENSP00000391185.2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152154 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.00000795 AC: 2 AN: 251440 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000578

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: 0.00000684 AC: 10 AN: 1461762 Hom.: 0 Cov.: 31 AF XY: 0.00000825 AC XY: 6 AN XY: 727178

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000201 AC: 9 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39668

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111942

Other (OTH) AF: 0.0000166 AC: 1 AN: 60392

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152272 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74482

African (AFR) AF: 0.00 AC: 0 AN: 41546

American (AMR) AF: 0.0000654 AC: 1 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Myofibrillar myopathy 3 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	5.0
DANN	Benign	0.67
PhyloP100		-0.044

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: rs200075800; hg19: chr5-137222981;