chr14-24241772-T-C

Position:

chr14-24241772-T-C

Variant summary

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

The NM_001099274.3(TINF2):c.302A>G(p.Lys101Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,613,774 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

TINF2
NM_001099274.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.720

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=0.10295552).

BS2

High AC in GnomAdExome4 at 18 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
TINF2	NM_001099274.3 linkuse as main transcript	c.302A>G	p.Lys101Arg	missense_variant	3/9	ENST00000267415.12	NP_001092744.1
TINF2	NM_001363668.2 linkuse as main transcript	c.197A>G	p.Lys66Arg	missense_variant	2/8		NP_001350597.1
TINF2	NM_012461.3 linkuse as main transcript	c.302A>G	p.Lys101Arg	missense_variant	3/6		NP_036593.2
TINF2	XM_011536642.3 linkuse as main transcript	c.302A>G	p.Lys101Arg	missense_variant	3/5		XP_011534944.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TINF2	ENST00000267415.12 linkuse as main transcript	c.302A>G	p.Lys101Arg	missense_variant	3/9	1	NM_001099274.3	ENSP00000267415	P1	Q9BSI4-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

248818

Hom.:

AF XY:

0.00000741

AC XY:

AN XY:

134960

show subpopulations

Gnomad AFR exome

AF:

0.0000650

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1461558

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727030

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000144

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

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	Sep 21, 2023	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	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2024	TINF2: PM2:Supporting, BP4 -

Dyskeratosis congenita

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	May 25, 2022	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: 529182). This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 101 of the TINF2 protein (p.Lys101Arg). This variant is present in population databases (no rsID available, gnomAD 0.007%). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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. -
Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Jul 16, 2021	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.091

T;.;T;.;.;.;.

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.22

FATHMM_MKL

Benign

0.099

M_CAP

Benign

0.011

MetaRNN

Benign

0.10

T;T;T;T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Uncertain

2.2

M;M;M;.;.;.;.

MutationTaster

Benign

1.0

D;D;N;N;N;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.2

.;N;N;.;.;N;.

REVEL

Benign

0.053

Sift

Benign

0.092

.;T;T;.;.;D;.

Sift4G

Benign

0.40

.;T;T;.;T;T;.

Polyphen

0.20

B;B;B;P;.;.;.

Vest4

0.071, 0.058, 0.072

MutPred

0.41

Loss of methylation at K101 (P = 0.0548);Loss of methylation at K101 (P = 0.0548);Loss of methylation at K101 (P = 0.0548);.;Loss of methylation at K101 (P = 0.0548);Loss of methylation at K101 (P = 0.0548);Loss of methylation at K101 (P = 0.0548);

MVP

0.45

MPC

0.34

ClinPred

0.20

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.38

gMVP

0.079

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