11-6390705-TGCTGGCGCTGGCGCTGGCGCTGGC-TGCTGGCGCTGGCGCTGGCGCTGGCGCTGGCGCTGGCGCTGGCGCTGGCGCTGGC

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP3

The NM_000543.5(SMPD1):​c.114_143dupGCTGGCGCTGGCGCTGGCGCTGGCGCTGGC​(p.Ala48_Leu49insLeuAlaLeuAlaLeuAlaLeuAlaLeuAla) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000068 ( 0 hom., cov: 0)

Consequence

SMPD1
NM_000543.5 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.158
Variant links:
Genes affected
SMPD1 (HGNC:11120): (sphingomyelin phosphodiesterase 1) The protein encoded by this gene is a lysosomal acid sphingomyelinase that converts sphingomyelin to ceramide. The encoded protein also has phospholipase C activity. Defects in this gene are a cause of Niemann-Pick disease type A (NPA) and Niemann-Pick disease type B (NPB). Multiple transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP3
Nonframeshift variant in repetitive region in NM_000543.5

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMPD1NM_000543.5 linkc.114_143dupGCTGGCGCTGGCGCTGGCGCTGGCGCTGGC p.Ala48_Leu49insLeuAlaLeuAlaLeuAlaLeuAlaLeuAla disruptive_inframe_insertion Exon 1 of 6 ENST00000342245.9 NP_000534.3 P17405-1Q59EN6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMPD1ENST00000342245.9 linkc.114_143dupGCTGGCGCTGGCGCTGGCGCTGGCGCTGGC p.Ala48_Leu49insLeuAlaLeuAlaLeuAlaLeuAlaLeuAla disruptive_inframe_insertion Exon 1 of 6 1 NM_000543.5 ENSP00000340409.4 P17405-1

Frequencies

GnomAD3 genomes
AF:
0.00000679
AC:
1
AN:
147228
Hom.:
0
Cov.:
0
show subpopulations
Gnomad AFR
AF:
0.0000249
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
0
GnomAD4 genome
AF:
0.00000679
AC:
1
AN:
147228
Hom.:
0
Cov.:
0
AF XY:
0.0000139
AC XY:
1
AN XY:
71866
show subpopulations
Gnomad4 AFR
AF:
0.0000249
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs3838786; hg19: chr11-6411935; API