rs774472068

Variant names:

• chr1-11213542-T-C
• rs774472068
• NM_004958.4:c.3142A>G

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_Moderate BP6_Moderate BS2

The NM_004958.4(MTOR):​c.3142A>G​(p.Ile1048Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: MTOR NM_004958.4 missense
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 7.55
• Publications: 1 publications found

Genes affected

MTOR (HGNC:3942): (mechanistic target of rapamycin kinase) The protein encoded by this gene belongs to a family of phosphatidylinositol kinase-related kinases. These kinases mediate cellular responses to stresses such as DNA damage and nutrient deprivation. This kinase is a component of two distinct complexes, mTORC1, which controls protein synthesis, cell growth and proliferation, and mTORC2, which is a regulator of the actin cytoskeleton, and promotes cell survival and cell cycle progression. This protein acts as the target for the cell-cycle arrest and immunosuppressive effects of the FKBP12-rapamycin complex. Inhibitors of mTOR are used in organ transplants as immunosuppressants, and are being evaluated for their therapeutic potential in SARS-CoV-2 infections. Mutations in this gene are associated with Smith-Kingsmore syndrome and somatic focal cortical dysplasia type II. The ANGPTL7 gene is located in an intron of this gene. [provided by RefSeq, Aug 2020]

MTOR Gene-Disease associations (from GenCC):

• macrocephaly-intellectual disability-neurodevelopmental disorder-small thorax syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, Orphanet, Labcorp Genetics (formerly Invitae), G2P
• overgrowth syndrome and/or cerebral malformations due to abnormalities in MTOR pathway genes

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -8 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.22325638).
• BP6: Variant 1-11213542-T-C is Benign according to our data. Variant chr1-11213542-T-C is described in ClinVar as [Benign]. Clinvar id is 240078.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MTOR	NM_004958.4	c.3142A>G	p.Ile1048Val	missense_variant	Exon 21 of 58	ENST00000361445.9	NP_004949.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MTOR	ENST00000361445.9	c.3142A>G	p.Ile1048Val	missense_variant	Exon 21 of 58	1	NM_004958.4	ENSP00000354558.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000159 AC: 4 AN: 251110 AF XY: 0.0000295

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461812 Hom.: 0 Cov.: 31 AF XY: 0.00000825 AC XY: 6 AN XY: 727222

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.0000224 AC: 1 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1111966

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

GnomAD4 genome Cov.: 32

ExAC AF: 0.0000330 AC: 4

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Mar 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.42
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.32	T
Eigen	Benign	-0.12
Eigen_PC	Benign	0.086
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.0040	T
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.65	N
PhyloP100		7.5
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-0.63	N
REVEL	Benign	0.080
Sift	Benign	0.25	T
Sift4G	Benign	0.23	T
Polyphen		0.0	B
Vest4		0.39
MutPred		0.38		Gain of glycosylation at S1050 (P = 0.1353);
MVP		0.54
MPC		0.67
ClinPred		0.42	T
GERP RS		4.7
Varity_R		0.12
gMVP		0.066
Mutation Taster		=88/12	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: rs774472068; hg19: chr1-11273599;