chr17-32659240-G-C

Position:

• chr17-32659240-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_015194.3(MYO1D):​c.2220C>G​(p.Ile740Met) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MYO1D NM_015194.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.11

Genes affected

MYO1D (HGNC:7598): (myosin ID) Enables protein domain specific binding activity. Predicted to be involved in actin filament organization; early endosome to recycling endosome transport; and vesicle transport along actin filament. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19872802).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO1D	NM_015194.3	c.2220C>G	p.Ile740Met	missense_variant	17/22	ENST00000318217.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO1D	ENST00000318217.10	c.2220C>G	p.Ile740Met	missense_variant	17/22	1	NM_015194.3	P1
	ENST00000582272.1	n.141+26761G>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461890 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 28, 2022

The c.2220C>G (p.I740M) alteration is located in exon 17 (coding exon 17) of the MYO1D gene. This alteration results from a C to G substitution at nucleotide position 2220, causing the isoleucine (I) at amino acid position 740 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.060	T
BayesDel_noAF	Benign	-0.15
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.11	T;T;T
Eigen	Benign	-0.12
Eigen_PC	Benign	0.010
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.95	D;D;D
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.20	T;T;T
MetaSVM	Benign	-0.75	T
MutationAssessor	Benign	1.8	L;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-1.0	N;.;.
REVEL	Benign	0.080
Sift	Benign	0.14	T;.;.
Sift4G	Benign	0.14	T;T;T
Polyphen		0.0080	B;.;.
Vest4		0.51
MutPred		0.42		Gain of phosphorylation at Y739 (P = 0.1069);.;Gain of phosphorylation at Y739 (P = 0.1069);
MVP		0.82
MPC		0.31
ClinPred		0.44	T
GERP RS		4.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.12
gMVP		0.57

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-30986258;