rs199740488

Positions:

chr14-24241308-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001099274.3(TINF2):c.403C>T(p.Leu135Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00011 in 1,612,908 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

TINF2
NM_001099274.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 2.24

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]

TINF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21864802).

BS2

High AC in GnomAd4 at 18 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TINF2	NM_001099274.3 linkuse as main transcript	c.403C>T	p.Leu135Phe	missense_variant	4/9	ENST00000267415.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TINF2	ENST00000267415.12 linkuse as main transcript	c.403C>T	p.Leu135Phe	missense_variant	4/9	1	NM_001099274.3	P1	Q9BSI4-1

Frequencies

GnomAD3 genomes

AF:

0.000119

AC:

AN:

151030

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000124

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000191

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000521

AC:

AN:

249584

Hom.:

AF XY:

0.0000517

AC XY:

AN XY:

135410

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000109

AC:

159

AN:

1461878

Hom.:

Cov.:

AF XY:

0.000111

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

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:

0.000130

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000119

AC:

AN:

151030

Hom.:

Cov.:

AF XY:

0.000122

AC XY:

AN XY:

73794

show subpopulations

Gnomad4 AFR

AF:

0.000124

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.0000680

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000242

AC:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Feb 10, 2022	In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Oct 27, 2021	- -

Dyskeratosis congenita

Uncertain:2

Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Jun 25, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jan 01, 2024	This sequence change replaces leucine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 135 of the TINF2 protein (p.Leu135Phe). This variant is present in population databases (rs199740488, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with TINF2-related conditions. ClinVar contains an entry for this variant (Variation ID: 572348). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Revesz syndrome;C3151445:Dyskeratosis congenita, autosomal dominant 3;C4551974:Dyskeratosis congenita, autosomal dominant 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Jul 20, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.28

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.051

T;.;T;.

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Uncertain

0.85

M_CAP

Benign

0.023

MetaRNN

Benign

0.22

T;T;T;T

MetaSVM

Benign

-0.77

MutationAssessor

Uncertain

2.3

M;M;M;.

MutationTaster

Benign

0.99

D;D;D;D;D;D

PrimateAI

Benign

0.46

Polyphen

1.0

D;.;D;D

Vest4

0.35, 0.34

MVP

0.58

MPC

0.58

ClinPred

0.31

GERP RS

4.8

Varity_R

0.57

gMVP

0.10

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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