rs1555364153

Variant names:

• chr14-50593886-A-G
• rs1555364153
• NM_015915.5:c.563A>G

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1 PM2 PP2 PP3_Moderate PP5_Moderate

The NM_015915.5(ATL1):​c.563A>G​(p.Gln188Arg) 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. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q188H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ATL1 NM_015915.5 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.23
• Publications: 0 publications found

Genes affected

ATL1 (HGNC:11231): (atlastin GTPase 1) The protein encoded by this gene is a GTPase and a Golgi body transmembrane protein. The encoded protein can form a homotetramer and has been shown to interact with spastin and with mitogen-activated protein kinase kinase kinase kinase 4. This protein may be involved in axonal maintenance as evidenced by the fact that defects in this gene are a cause of spastic paraplegia type 3. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ATL1 Gene-Disease associations (from GenCC):

• hereditary spastic paraplegia 3A

  Inheritance: AD, SD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• neuropathy, hereditary sensory, type 1D

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

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM1: In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_015915.5
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the ATL1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 60 curated pathogenic missense variants (we use a threshold of 10). The gene has 10 curated benign missense variants. Gene score misZ: 2.6313 (below the threshold of 3.09). Trascript score misZ: 3.8383 (above the threshold of 3.09). GenCC associations: The gene is linked to hereditary spastic paraplegia 3A, neuropathy, hereditary sensory, type 1D, hereditary sensory and autonomic neuropathy type 1.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.926
• PP5: Variant 14-50593886-A-G is Pathogenic according to our data. Variant chr14-50593886-A-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 446867.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015915.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATL1	NM_015915.5	MANE Select	c.563A>G	p.Gln188Arg	missense	Exon 5 of 14	NP_056999.2
	ATL1	NM_001127713.1		c.563A>G	p.Gln188Arg	missense	Exon 6 of 14	NP_001121185.1
	ATL1	NM_181598.4		c.563A>G	p.Gln188Arg	missense	Exon 5 of 13	NP_853629.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATL1	ENST00000358385.12	TSL:1 MANE Select	c.563A>G	p.Gln188Arg	missense	Exon 5 of 14	ENSP00000351155.7
	ATL1	ENST00000441560.6	TSL:1	c.563A>G	p.Gln188Arg	missense	Exon 6 of 14	ENSP00000413675.2
	ATL1	ENST00000682037.1		c.563A>G	p.Gln188Arg	missense	Exon 5 of 14	ENSP00000508289.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1454062 Hom.: 0 Cov.: 28 AF XY: 0.00 AC XY: 0 AN XY: 723824

African (AFR) AF: 0.00 AC: 0 AN: 33334

American (AMR) AF: 0.00 AC: 0 AN: 44704

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26074

East Asian (EAS) AF: 0.00 AC: 0 AN: 39592

South Asian (SAS) AF: 0.00 AC: 0 AN: 86100

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53018

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5670

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1105424

Other (OTH) AF: 0.00 AC: 0 AN: 60146

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.16
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.80	D
Eigen	Pathogenic	0.96
Eigen_PC	Pathogenic	0.90
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Uncertain	0.17	D
MetaRNN	Pathogenic	0.93	D
MetaSVM	Uncertain	0.53	D
MutationAssessor	Pathogenic	3.4	M
PhyloP100		9.2
PrimateAI	Pathogenic	0.87	D
PROVEAN	Uncertain	-3.6	D
REVEL	Pathogenic	0.86
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.76
MutPred		0.80		Loss of disorder (P = 0.1437)
MVP		0.91
MPC		1.6
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.93
gMVP		0.86
Mutation Taster		=2/98	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1555364153; hg19: chr14-51060604;