14-24239917-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001099274.3(TINF2):​c.1236C>T​(p.Asn412=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00487 in 1,614,208 control chromosomes in the GnomAD database, including 44 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0036 ( 4 hom., cov: 32)
Exomes 𝑓: 0.0050 ( 40 hom. )

Consequence

TINF2
NM_001099274.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 1.15
Variant links:
Genes affected
TINF2 (HGNC:11824): (TERF1 interacting nuclear factor 2) This gene encodes one of the proteins of the shelterin, or telosome, complex which protects telomeres by allowing the cell to distinguish between telomeres and regions of DNA damage. The protein encoded by this gene is a critical part of shelterin; it interacts with the three DNA-binding proteins of the shelterin complex, and it is important for assembly of the complex. Mutations in this gene cause dyskeratosis congenita (DKC), an inherited bone marrow failure syndrome. [provided by RefSeq, Mar 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 14-24239917-G-A is Benign according to our data. Variant chr14-24239917-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 238288.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.15 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00355 (541/152318) while in subpopulation SAS AF= 0.0116 (56/4822). AF 95% confidence interval is 0.00918. There are 4 homozygotes in gnomad4. There are 265 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 541 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TINF2NM_001099274.3 linkuse as main transcriptc.1236C>T p.Asn412= synonymous_variant 9/9 ENST00000267415.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TINF2ENST00000267415.12 linkuse as main transcriptc.1236C>T p.Asn412= synonymous_variant 9/91 NM_001099274.3 P1Q9BSI4-1

Frequencies

GnomAD3 genomes
AF:
0.00355
AC:
541
AN:
152200
Hom.:
4
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00183
Gnomad ASJ
AF:
0.00576
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.0116
Gnomad FIN
AF:
0.000941
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00541
Gnomad OTH
AF:
0.00334
GnomAD3 exomes
AF:
0.00470
AC:
1172
AN:
249564
Hom.:
10
AF XY:
0.00518
AC XY:
701
AN XY:
135408
show subpopulations
Gnomad AFR exome
AF:
0.00110
Gnomad AMR exome
AF:
0.00301
Gnomad ASJ exome
AF:
0.00914
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.0112
Gnomad FIN exome
AF:
0.00111
Gnomad NFE exome
AF:
0.00482
Gnomad OTH exome
AF:
0.00726
GnomAD4 exome
AF:
0.00500
AC:
7315
AN:
1461890
Hom.:
40
Cov.:
32
AF XY:
0.00530
AC XY:
3858
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.000747
Gnomad4 AMR exome
AF:
0.00302
Gnomad4 ASJ exome
AF:
0.0103
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0112
Gnomad4 FIN exome
AF:
0.00122
Gnomad4 NFE exome
AF:
0.00501
Gnomad4 OTH exome
AF:
0.00432
GnomAD4 genome
AF:
0.00355
AC:
541
AN:
152318
Hom.:
4
Cov.:
32
AF XY:
0.00356
AC XY:
265
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00120
Gnomad4 AMR
AF:
0.00183
Gnomad4 ASJ
AF:
0.00576
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0116
Gnomad4 FIN
AF:
0.000941
Gnomad4 NFE
AF:
0.00541
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00482
Hom.:
1
Bravo
AF:
0.00325
Asia WGS
AF:
0.00404
AC:
15
AN:
3478
EpiCase
AF:
0.00540
EpiControl
AF:
0.00409

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenFeb 01, 2024TINF2: BP4, BP7, BS1, BS2 -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 07, 2021- -
Revesz syndrome;C3151445:Dyskeratosis congenita, autosomal dominant 3;C4551974:Dyskeratosis congenita, autosomal dominant 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMay 19, 2022- -
Dyskeratosis congenita, autosomal dominant 3 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Revesz syndrome Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Dyskeratosis congenita Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
TINF2-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 29, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
5.8
DANN
Benign
0.77

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.

Other links and lift over

dbSNP: rs117234138; hg19: chr14-24709123; API