chr15-44598802-CTA-C

Variant names:

• chr15-44598802-CTA-C
• rs312262756
• NM_025137.4:c.3719_3720delTA

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_025137.4(SPG11):​c.3719_3720delTA​(p.Ile1240ArgfsTer24) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as not provided (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SPG11 NM_025137.4 frameshift
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 4.98
• Publications: 3 publications found

Genes affected

SPG11 (HGNC:11226): (SPG11 vesicle trafficking associated, spatacsin) The protein encoded by this gene is a potential transmembrane protein that is phosphorylated upon DNA damage. Defects in this gene are a cause of spastic paraplegia type 11 (SPG11). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

SPG11 Gene-Disease associations (from GenCC):

• hereditary spastic paraplegia 11

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Illumina, G2P
• amyotrophic lateral sclerosis type 5

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• Charcot-Marie-Tooth disease axonal type 2X

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
• juvenile amyotrophic lateral sclerosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025137.4. 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
	SPG11	NM_025137.4	MANE Select	c.3719_3720delTA	p.Ile1240ArgfsTer24	frameshift	Exon 22 of 40	NP_079413.3
	SPG11	NM_001411132.1		c.3719_3720delTA	p.Ile1240ArgfsTer24	frameshift	Exon 22 of 40	NP_001398061.1
	SPG11	NM_001160227.2		c.3719_3720delTA	p.Ile1240ArgfsTer24	frameshift	Exon 22 of 38	NP_001153699.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPG11	ENST00000261866.12	TSL:1 MANE Select	c.3719_3720delTA	p.Ile1240ArgfsTer24	frameshift	Exon 22 of 40	ENSP00000261866.7
	SPG11	ENST00000535302.6	TSL:1	c.3719_3720delTA	p.Ile1240ArgfsTer24	frameshift	Exon 22 of 38	ENSP00000445278.2
	SPG11	ENST00000427534.6	TSL:1	c.3719_3720delTA	p.Ile1240ArgfsTer24	frameshift	Exon 22 of 37	ENSP00000396110.2

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

Hereditary spastic paraplegia 11 Other:1

GeneReviews

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		5.0
Mutation Taster		=0/200	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs312262756; hg19: chr15-44891000;