chr2-73449482-T-TCTATTCTGGACTG

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_001378454.1(ALMS1):​c.2955_2956insCTATTCTGGACTG​(p.Gly986LeufsTer8) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)

Consequence

ALMS1
NM_001378454.1 frameshift

Scores

Not classified

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: -0.113
Variant links:
Genes affected
ALMS1 (HGNC:428): (ALMS1 centrosome and basal body associated protein) This gene encodes a protein containing a large tandem-repeat domain as well as additional low complexity regions. The encoded protein functions in microtubule organization, particularly in the formation and maintanance of cilia. Mutations in this gene cause Alstrom syndrome. There is a pseudogene for this gene located adjacent in the same region of chromosome 2. Alternative splice variants have been described but their full length nature has not been determined. [provided by RefSeq, Apr 2014]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 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;
PP5
Variant 2-73449482-T-TCTATTCTGGACTG is Pathogenic according to our data. Variant chr2-73449482-T-TCTATTCTGGACTG is described in ClinVar as [Likely_pathogenic]. Clinvar id is 437990.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALMS1NM_001378454.1 linkuse as main transcriptc.2955_2956insCTATTCTGGACTG p.Gly986LeufsTer8 frameshift_variant 8/23 ENST00000613296.6 NP_001365383.1
ALMS1NM_015120.4 linkuse as main transcriptc.2958_2959insCTATTCTGGACTG p.Gly987LeufsTer8 frameshift_variant 8/23 NP_055935.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALMS1ENST00000613296.6 linkuse as main transcriptc.2955_2956insCTATTCTGGACTG p.Gly986LeufsTer8 frameshift_variant 8/231 NM_001378454.1 ENSP00000482968 P3Q8TCU4-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
39
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Retinal dystrophy Pathogenic:1
Likely pathogenic, no assertion criteria providedresearchNIHR Bioresource Rare Diseases, University of CambridgeJan 01, 2015- -

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: rs1553403585; hg19: chr2-73676609; API