chr11-63631128-A-T

Variant names:

• chr11-63631128-A-T
• rs773136140
• NM_015459.5:c.1451T>A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_015459.5(ATL3):​c.1451T>A​(p.Leu484His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. L484P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ATL3 NM_015459.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.32
• Publications: 0 publications found

Genes affected

ATL3 (HGNC:24526): (atlastin GTPase 3) This gene encodes a member of a family of dynamin-like, integral membrane GTPases. The encoded protein is required for the proper formation of the network of interconnected tubules of the endoplasmic reticulum. Mutations in this gene may be associated with hereditary sensory neuropathy type IF. Alternatively spliced transcript variants that encode distinct isoforms have been described. [provided by RefSeq, Feb 2014]

ATL3 Gene-Disease associations (from GenCC):

• neuropathy, hereditary sensory, type 1F

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
• hereditary sensory and autonomic neuropathy type 1

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000256789 (HGNC:58146):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.872

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATL3	NM_015459.5	c.1451T>A	p.Leu484His	missense_variant	Exon 12 of 13	ENST00000398868.8	NP_056274.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATL3	ENST00000398868.8	c.1451T>A	p.Leu484His	missense_variant	Exon 12 of 13	1	NM_015459.5	ENSP00000381844.3
ATL3	ENST00000538786.1	c.1397T>A	p.Leu466His	missense_variant	Exon 12 of 13	2		ENSP00000437593.1
ENSG00000256789	ENST00000540307.2	n.121-6363A>T		intron_variant	Intron 1 of 3	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.48	D
BayesDel_noAF	Pathogenic	0.45
CADD	Pathogenic	26
DANN	Uncertain	0.98
DEOGEN2	Benign	0.28	T;.
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.94	D;D
M_CAP	Pathogenic	0.33	D
MetaRNN	Pathogenic	0.87	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.0	M;.
PhyloP100		9.3
PrimateAI	Uncertain	0.68	T
PROVEAN	Pathogenic	-6.2	D;D
REVEL	Pathogenic	0.89
Sift	Pathogenic	0.0	D;D
Sift4G	Benign	0.070	T;T
Polyphen		1.0	D;.
Vest4		0.80
MutPred		0.50		Loss of stability (P = 0.0024);.;
MVP		1.0
MPC		1.1
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.78
gMVP		0.69
Mutation Taster		=64/36	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: rs773136140; hg19: chr11-63398600;