1-27547429-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_001371928.1(AHDC1):c.4687G>A(p.Ala1563Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000145 in 1,583,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

AHDC1
NM_001371928.1 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 1.20

Variant links:

Genes affected

AHDC1 (HGNC:25230): (AT-hook DNA binding motif containing 1) This gene encodes a protein containing two AT-hooks, which likely function in DNA binding. Mutations in this gene were found in individuals with Xia-Gibbs syndrome. [provided by RefSeq, Jun 2014]

AHDC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.081703454).

BP6

Variant 1-27547429-C-T is Benign according to our data. Variant chr1-27547429-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1463597.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

BS2

High AC in GnomAdExome4 at 21 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AHDC1	NM_001371928.1 link	c.4687G>A	p.Ala1563Thr	missense_variant	Exon 8 of 9	ENST00000673934.1	NP_001358857.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AHDC1	ENST00000673934.1 link	c.4687G>A	p.Ala1563Thr	missense_variant	Exon 8 of 9		NM_001371928.1	ENSP00000501218.1		Q5TGY3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000212

AC:

AN:

235554

Hom.:

AF XY:

0.00

AC XY:

AN XY:

126940

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000364

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000378

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000147

AC:

AN:

1431520

Hom.:

Cov.:

AF XY:

0.0000184

AC XY:

AN XY:

707078

show subpopulations

Gnomad4 AFR exome

AF:

0.0000606

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000241

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000147

Gnomad4 OTH exome

AF:

0.0000169

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152346

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74494

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000391

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Nov 05, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 1563 of the AHDC1 protein (p.Ala1563Thr). This variant is present in population databases (rs539447084, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with AHDC1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1463597). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Possibly Damaging". The threonine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Inborn genetic diseases

Benign:1

Jan 21, 2025

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.024

T;T;T;T;T

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.11

FATHMM_MKL

Benign

0.60

LIST_S2

Benign

0.67

.;.;T;.;.

M_CAP

Benign

0.080

MetaRNN

Benign

0.082

T;T;T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.34

N;N;N;N;N

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-0.38

N;.;N;.;.

REVEL

Benign

0.095

Sift

Uncertain

0.0040

D;.;D;.;.

Sift4G

Uncertain

0.045

D;.;D;.;.

Polyphen

0.0020

B;B;B;B;B

Vest4

0.19

MutPred

0.25

Gain of phosphorylation at A1563 (P = 0.0227);Gain of phosphorylation at A1563 (P = 0.0227);Gain of phosphorylation at A1563 (P = 0.0227);Gain of phosphorylation at A1563 (P = 0.0227);Gain of phosphorylation at A1563 (P = 0.0227);

MVP

0.23

MPC

1.2

ClinPred

0.22

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.095

gMVP

0.16

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over