4-99885627-G-C

Variant names:

• chr4-99885627-G-C
• rs1724908686
• NM_021970.4:c.152C>G

Variant summary

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

The NM_021970.4(LAMTOR3):​c.152C>G​(p.Ser51Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,106 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. S51Y) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: LAMTOR3 NM_021970.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.40
• Publications: 0 publications found

Genes affected

LAMTOR3 (HGNC:15606): (late endosomal/lysosomal adaptor, MAPK and MTOR activator 3) This gene encodes a scaffold protein that functions in the extracellular signal-regulated kinase (ERK) cascade. The protein is localized to late endosomes by the mitogen-activated protein-binding protein-interacting protein, and binds specifically to MAP kinase kinase MAP2K1/MEK1, MAP kinase MAPK3/ERK1, and MAP kinase MAPK1/ERK2. Studies of the orthologous gene in mouse indicate that it regulates late endosomal traffic and cell proliferation. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. A pseudogene of this gene is located on the long arm of chromosome 13. [provided by RefSeq, Aug 2011]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021970.4. 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
	LAMTOR3	NM_021970.4	MANE Select	c.152C>G	p.Ser51Cys	missense	Exon 5 of 7	NP_068805.1	Q9UHA4-1
	LAMTOR3	NM_001243736.1		c.131C>G	p.Ser44Cys	missense	Exon 5 of 7	NP_001230665.1	Q9UHA4-2
	LAMTOR3	NR_024170.1		n.355C>G		non_coding_transcript_exon	Exon 4 of 6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LAMTOR3	ENST00000499666.7	TSL:1 MANE Select	c.152C>G	p.Ser51Cys	missense	Exon 5 of 7	ENSP00000424183.1	Q9UHA4-1
	LAMTOR3	ENST00000515100.1	TSL:1	n.237C>G		non_coding_transcript_exon	Exon 4 of 6
	LAMTOR3	ENST00000871285.1		c.152C>G	p.Ser51Cys	missense	Exon 4 of 6	ENSP00000541344.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461106 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726892

African (AFR) AF: 0.0000299 AC: 1 AN: 33420

American (AMR) AF: 0.00 AC: 0 AN: 44576

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26118

East Asian (EAS) AF: 0.00 AC: 0 AN: 39638

South Asian (SAS) AF: 0.00 AC: 0 AN: 86198

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111632

Other (OTH) AF: 0.00 AC: 0 AN: 60356

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.62
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.18	T
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.032	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Uncertain	0.086	D
MutationAssessor	Uncertain	2.4	M
PhyloP100		9.4
PrimateAI	Pathogenic	0.90	D
PROVEAN	Uncertain	-2.8	D
REVEL	Uncertain	0.37
Sift	Uncertain	0.020	D
Sift4G	Uncertain	0.028	D
Polyphen		1.0	D
Vest4		0.84
MutPred		0.63		Loss of disorder (P = 0.0855)
MVP		0.44
MPC		0.64
ClinPred		0.99	D
GERP RS		5.4
Varity_R		0.61
gMVP		0.79
Mutation Taster		=34/66	disease causing

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: rs1724908686; hg19: chr4-100806784;