Genetic Variant GSAP:c.577-26_577-11dupTTTTTTTTTTTTTTTT (chr7-77377400-C-CAAAAAAAAAAAAAAAA) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_017439.4(GSAP):c.577-26_577-11dupTTTTTTTTTTTTTTTT variant causes a intron change involving the alteration of a non-conserved nucleotide. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 0)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

GSAP
NM_017439.4 intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.00

Publications

0 publications found

Variant links:

Genes affected

GSAP (HGNC:28042): (gamma-secretase activating protein) Accumulation of neurotoxic amyloid-beta is a major hallmark of Alzheimer disease (AD; MIM 104300). Formation of amyloid-beta is catalyzed by gamma-secretase (see PSEN1; MIM 104311), a protease with numerous substrates. PION, or GSAP, selectively increases amyloid-beta production through a mechanism involving its interaction with both gamma-secretase and its substrate, the amyloid-beta precursor protein (APP; MIM 104760) C-terminal fragment (APP-CTF) (He et al., 2010 [PubMed 20811458]).[supplied by OMIM, Nov 2010]

GSAP links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GSAP	NM_017439.4 link	c.577-26_577-11dupTTTTTTTTTTTTTTTT		intron_variant	Intron 8 of 30	ENST00000257626.12	NP_059135.2	A4D1B5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GSAP	ENST00000257626.12 link	c.577-11_577-10insTTTTTTTTTTTTTTTT		intron_variant	Intron 8 of 30	1	NM_017439.4	ENSP00000257626.7		A4D1B5-1
GSAP	ENST00000334003.11 link	n.468-11_468-10insTTTTTTTTTTTTTTTT		intron_variant	Intron 7 of 18	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000276

AC:

AN:

1086470

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

534570

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

22962

American (AMR)

AF:

0.0000957

AC:

AN:

20908

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

14920

East Asian (EAS)

AF:

0.00

AC:

AN:

24036

South Asian (SAS)

AF:

0.00

AC:

AN:

52472

European-Finnish (FIN)

AF:

0.00

AC:

AN:

24172

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3056

European-Non Finnish (NFE)

AF:

0.00000113

AC:

AN:

881266

Other (OTH)

AF:

0.00

AC:

AN:

42678

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.408

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.0

Splicing

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

Publications

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7-77377400-CAAAAAAAAAAAAA-CAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over