chr16-67658269-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001082486.2(ACD):c.923G>A(p.Gly308Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00122 in 1,613,710 control chromosomes in the GnomAD database, including 19 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. G308G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0063 ( 5 hom., cov: 33)

Exomes 𝑓: 0.00069 ( 14 hom. )

Consequence

ACD
NM_001082486.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -1.31

Variant links:

Genes affected

ACD (HGNC:25070): (ACD shelterin complex subunit and telomerase recruitment factor) This gene encodes a protein that is involved in telomere function. This protein is one of six core proteins in the telosome/shelterin telomeric complex, which functions to maintain telomere length and to protect telomere ends. Through its interaction with other components, this protein plays a key role in the assembly and stabilization of this complex, and it mediates the access of telomerase to the telomere. Multiple transcript variants encoding different isoforms have been found for this gene. This gene, which is also referred to as TPP1, is distinct from the unrelated TPP1 gene on chromosome 11, which encodes tripeptidyl-peptidase I. [provided by RefSeq, Jul 2008]

ACD links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0036298037).

BP6

Variant 16-67658269-C-T is Benign according to our data. Variant chr16-67658269-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 475764.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00626 (953/152246) while in subpopulation AFR AF = 0.0214 (888/41540). AF 95% confidence interval is 0.0202. There are 5 homozygotes in GnomAd4. There are 443 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position FAILED quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACD	NM_001082486.2 link	c.923G>A	p.Gly308Glu	missense_variant	Exon 10 of 12	ENST00000620761.6	NP_001075955.2	Q96AP0-3
ACD	NM_022914.3 link	c.914G>A	p.Gly305Glu	missense_variant	Exon 10 of 12		NP_075065.3	Q96AP0-2
ACD	NM_001410884.1 link	c.836G>A	p.Gly279Glu	missense_variant	Exon 9 of 11		NP_001397813.1
ACD	XR_429728.4 link	n.*1G>A		downstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACD	ENST00000620761.6 link	c.923G>A	p.Gly308Glu	missense_variant	Exon 10 of 12	1	NM_001082486.2	ENSP00000478084.1		Q96AP0-3

Frequencies

GnomAD3 genomes

AF:

0.00626

AC:

953

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0215

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00288

Gnomad ASJ

AF:

0.000289

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00622

GnomAD2 exomes

AF:

0.00147

AC:

367

AN:

250392

AF XY:

0.00104

show subpopulations

Gnomad AFR exome

AF:

0.0206

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.000398

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000884

Gnomad OTH exome

AF:

0.000979

GnomAD4 exome

AF:

0.000690

AC:

1008

AN:

1461464

Hom.:

Cov.:

AF XY:

0.000615

AC XY:

447

AN XY:

727026

show subpopulations

Gnomad4 AFR exome

AF:

0.0237

AC:

793

AN:

33480

Gnomad4 AMR exome

AF:

0.000693

AC:

AN:

44722

Gnomad4 ASJ exome

AF:

0.000383

AC:

AN:

26136

Gnomad4 EAS exome

AF:

0.00

AC:

AN:

39700

Gnomad4 SAS exome

AF:

0.0000348

AC:

AN:

86258

Gnomad4 FIN exome

AF:

0.00

AC:

AN:

53006

Gnomad4 NFE exome

AF:

0.0000674

AC:

AN:

1112002

Gnomad4 Remaining exome

AF:

0.00142

AC:

AN:

60394

Heterozygous variant carriers

139

208

278

347

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Exome Het

Exome Hom

Variant carriers

112

140

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00626

AC:

953

AN:

152246

Hom.:

Cov.:

AF XY:

0.00595

AC XY:

443

AN XY:

74438

show subpopulations

Gnomad4 AFR

AF:

0.0214

AC:

0.021377

AN:

0.021377

Gnomad4 AMR

AF:

0.00288

AC:

0.00287657

AN:

0.00287657

Gnomad4 ASJ

AF:

0.000289

AC:

0.000288517

AN:

0.000288517

Gnomad4 EAS

AF:

0.00

AC:

AN:

Gnomad4 SAS

AF:

0.00

AC:

AN:

Gnomad4 FIN

AF:

0.00

AC:

AN:

Gnomad4 NFE

AF:

0.0000882

AC:

0.0000882353

AN:

0.0000882353

Gnomad4 OTH

AF:

0.00616

AC:

0.0061553

AN:

0.0061553

Heterozygous variant carriers

129

172

215

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00365

Hom.:

Bravo

AF:

0.00752

ESP6500AA

AF:

0.0196

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.00186

AC:

226

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Oct 31, 2018

Genetic Services Laboratory, University of Chicago

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dyskeratosis congenita, autosomal dominant 6

Benign:2

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Benign:1

Jun 30, 2021

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. -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.69

BayesDel_noAF

Benign

-0.75

CADD

Benign

0.10

DANN

Benign

0.85

DEOGEN2

Benign

0.22

.;T;T;T;T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.053

LIST_S2

Benign

0.56

T;T;.;T;T;.

MetaRNN

Benign

0.0036

T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

.;L;.;.;.;.

PrimateAI

Benign

0.32

REVEL

Benign

0.080

Sift4G

Benign

0.19

.;T;T;.;T;.

Polyphen

0.92, 0.95

.;P;.;.;.;P

Vest4

0.065, 0.088, 0.078

MVP

0.31

MPC

0.12

ClinPred

0.013

GERP RS

-5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.028

gMVP

0.19

Mutation Taster

=100/0

polymorphism

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

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