13-108666104-A-C

Variant names:

• chr13-108666104-A-C
• rs779520347
• NM_001198950.3:c.247A>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001198950.3(MYO16):​c.247A>C​(p.Thr83Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,530 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 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. T83A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MYO16 NM_001198950.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.75
• Publications: 0 publications found

Genes affected

MYO16 (HGNC:29822): (myosin XVI) This gene encodes an unconventional myosin protein. The encoded protein has been proposed to act as a serine/threonine phosphatase-1 targeting or regulatory subunit. Studies in a rat cell line suggest that this protein may regulate cell cycle progression. A variant within this gene may be associated with susceptibility to schizophrenia and elevated expression of this gene has been observed in the frontal cortex of human schizophrenia patients. [provided by RefSeq, Mar 2017]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.089113474).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001198950.3. 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
	MYO16	NM_001198950.3	MANE Select	c.247A>C	p.Thr83Pro	missense	Exon 2 of 35	NP_001185879.1	F8W883
	MYO16	NM_015011.3		c.181A>C	p.Thr61Pro	missense	Exon 2 of 35	NP_055826.1	Q9Y6X6-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO16	ENST00000457511.7	TSL:1 MANE Select	c.247A>C	p.Thr83Pro	missense	Exon 2 of 35	ENSP00000401633.3	F8W883
	MYO16	ENST00000356711.7	TSL:1	c.181A>C	p.Thr61Pro	missense	Exon 2 of 35	ENSP00000349145.2	Q9Y6X6-1
	MYO16	ENST00000251041.10	TSL:5	c.181A>C	p.Thr61Pro	missense	Exon 2 of 25	ENSP00000251041.5	Q9Y6X6-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461530 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727012

African (AFR) AF: 0.00 AC: 0 AN: 33468

American (AMR) AF: 0.00 AC: 0 AN: 44702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

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: 53396

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

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111754

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

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.081
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	14
DANN	Benign	0.92
DEOGEN2	Benign	0.0034	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.12	N
M_CAP	Benign	0.0056	T
MetaRNN	Benign	0.089	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PhyloP100		1.7
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-0.75	N
REVEL	Benign	0.038
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0050	D
Polyphen		0.0010	B
Vest4		0.34
MutPred		0.25		Gain of catalytic residue at N59 (P = 0.0487)
MVP		0.12
MPC		0.24
ClinPred		0.11	T
GERP RS		0.17
Varity_R		0.30
gMVP		0.71
Mutation Taster		=99/1	polymorphism

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: rs779520347; hg19: chr13-109318452;