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GeneBe

8-73026900-A-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_017489.3(TERF1):​c.775-40A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00291 in 1,483,748 control chromosomes in the GnomAD database, including 103 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.016 ( 60 hom., cov: 32)
Exomes 𝑓: 0.0015 ( 43 hom. )

Consequence

TERF1
NM_017489.3 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.391
Variant links:
Genes affected
TERF1 (HGNC:11728): (telomeric repeat binding factor 1) This gene encodes a telomere specific protein which is a component of the telomere nucleoprotein complex. This protein is present at telomeres throughout the cell cycle and functions as an inhibitor of telomerase, acting in cis to limit the elongation of individual chromosome ends. The protein structure contains a C-terminal Myb motif, a dimerization domain near its N-terminus and an acidic N-terminus. Multiple transcripts of this gene are alternatively spliced products. [provided by RefSeq, Aug 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
This place is a probable branch point but likely benign (scored 0 / 10). Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 8-73026900-A-G is Benign according to our data. Variant chr8-73026900-A-G is described in ClinVar as [Benign]. Clinvar id is 1294460.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0529 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TERF1NM_017489.3 linkuse as main transcriptc.775-40A>G intron_variant ENST00000276603.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TERF1ENST00000276603.10 linkuse as main transcriptc.775-40A>G intron_variant 1 NM_017489.3 P4P54274-1

Frequencies

GnomAD3 genomes
AF:
0.0157
AC:
2386
AN:
152178
Hom.:
60
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0549
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.0110
GnomAD3 exomes
AF:
0.00394
AC:
927
AN:
235558
Hom.:
25
AF XY:
0.00292
AC XY:
371
AN XY:
127206
show subpopulations
Gnomad AFR exome
AF:
0.0551
Gnomad AMR exome
AF:
0.00182
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000356
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000103
Gnomad OTH exome
AF:
0.000854
GnomAD4 exome
AF:
0.00145
AC:
1937
AN:
1331452
Hom.:
43
Cov.:
19
AF XY:
0.00123
AC XY:
820
AN XY:
669152
show subpopulations
Gnomad4 AFR exome
AF:
0.0543
Gnomad4 AMR exome
AF:
0.00241
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000368
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000270
Gnomad4 OTH exome
AF:
0.00275
GnomAD4 genome
AF:
0.0157
AC:
2384
AN:
152296
Hom.:
60
Cov.:
32
AF XY:
0.0151
AC XY:
1126
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.0547
Gnomad4 AMR
AF:
0.00523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.0109
Alfa
AF:
0.00346
Hom.:
10
Bravo
AF:
0.0180
Asia WGS
AF:
0.00346
AC:
14
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 21, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
3.7
DANN
Benign
0.63
BranchPoint Hunter
0.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs16938556; hg19: chr8-73939135; API