Variant chr7-100893507-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000665.5(ACHE):c.726G>A(p.Met242Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ACHE
NM_000665.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.854

Variant links:

Genes affected

ACHE (HGNC:108): (acetylcholinesterase (Yt blood group)) Acetylcholinesterase hydrolyzes the neurotransmitter, acetylcholine at neuromuscular junctions and brain cholinergic synapses, and thus terminates signal transmission. It is also found on the red blood cell membranes, where it constitutes the Yt blood group antigen. Acetylcholinesterase exists in multiple molecular forms which possess similar catalytic properties, but differ in their oligomeric assembly and mode of cell attachment to the cell surface. It is encoded by the single ACHE gene, and the structural diversity in the gene products arises from alternative mRNA splicing, and post-translational associations of catalytic and structural subunits. The major form of acetylcholinesterase found in brain, muscle and other tissues is the hydrophilic species, which forms disulfide-linked oligomers with collagenous, or lipid-containing structural subunits. The other, alternatively spliced form, expressed primarily in the erythroid tissues, differs at the C-terminal end, and contains a cleavable hydrophobic peptide with a GPI-anchor site. It associates with the membranes through the phosphoinositide (PI) moieties added post-translationally. AChE activity may constitute a sensitive biomarker of RBC ageing in vivo, and thus, may be of aid in understanding the effects of transfusion[provided by RefSeq, Sep 2019]

ACHE links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3686986).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACHE	NM_000665.5 linkuse as main transcript	c.726G>A	p.Met242Ile	missense_variant	2/5	ENST00000241069.11	NP_000656.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACHE	ENST00000241069.11 linkuse as main transcript	c.726G>A	p.Met242Ile	missense_variant	2/5	1	NM_000665.5	ENSP00000241069	P1	P22303-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1455992

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724656

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 08, 2022

The c.726G>A (p.M242I) alteration is located in exon 2 (coding exon 1) of the ACHE gene. This alteration results from a G to A substitution at nucleotide position 726, causing the methionine (M) at amino acid position 242 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Benign

-0.054

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.24

T;.;T;.;T;T;T;.

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.064

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.88

.;D;.;D;D;D;D;.

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.37

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.86

MutationAssessor

Benign

0.47

N;N;N;N;N;.;.;N

MutationTaster

Benign

1.0

D;D;D;D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.4

N;N;N;N;N;N;N;N

REVEL

Benign

0.13

Sift

Uncertain

0.025

D;T;D;D;D;T;D;D

Sift4G

Uncertain

0.043

D;T;D;T;D;.;.;T

Polyphen

0.10

B;P;B;B;B;.;.;B

Vest4

0.42

MutPred

0.61

Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);Loss of disorder (P = 0.0611);

MVP

0.54

MPC

1.1

ClinPred

0.48

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.66

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over