16-3298997-T-C

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_033208.4(TIGD7):c.1618A>G(p.Ser540Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000121 in 1,324,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S540N) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TIGD7
NM_033208.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.91

Variant links:

Genes affected

TIGD7 (HGNC:18331): (tigger transposable element derived 7) The protein encoded by this gene belongs to the tigger subfamily of the pogo superfamily of DNA-mediated transposons in humans. These proteins are related to DNA transposons found in fungi and nematodes, and more distantly to the Tc1 and mariner transposases. They are also very similar to the major mammalian centromere protein B. The exact function of this gene is not known. [provided by RefSeq, Jul 2008]

TIGD7 links:

ZNF263 (HGNC:13056): (zinc finger protein 263) Enables DNA-binding transcription repressor activity, RNA polymerase II-specific and transcription cis-regulatory region binding activity. Involved in negative regulation of transcription by RNA polymerase II and positive regulation of transcription by RNA polymerase II. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF263 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.026043713).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TIGD7	NM_033208.4 link	c.1618A>G	p.Ser540Gly	missense_variant	Exon 2 of 2	ENST00000396862.2	NP_149985.2	Q6NT04-1
ZNF263	NM_001411015.1 link	c.2048-109T>C		intron_variant	Intron 6 of 7		NP_001397944.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TIGD7	ENST00000396862.2 link	c.1618A>G	p.Ser540Gly	missense_variant	Exon 2 of 2	2	NM_033208.4	ENSP00000380071.1	Q6NT04-1
ZNF263	ENST00000574674.2 link	c.2048-109T>C		intron_variant	Intron 6 of 7	2		ENSP00000461755.2	D3DUC1
ZNF263	ENST00000575332.2 link	c.2048-109T>C		intron_variant	Intron 6 of 6	3		ENSP00000461146.2	D3DUC1

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000480

AC:

AN:

125060

Hom.:

AF XY:

0.00

AC XY:

AN XY:

66692

show subpopulations

Gnomad AFR exome

AF:

0.000585

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:

0.00000341

AC:

AN:

1172562

Hom.:

Cov.:

AF XY:

0.00000178

AC XY:

AN XY:

563068

show subpopulations

Gnomad4 AFR exome

AF:

0.000121

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000324

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.000290

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.000683

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000267

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 19, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1618A>G (p.S540G) alteration is located in exon 2 (coding exon 1) of the TIGD7 gene. This alteration results from a A to G substitution at nucleotide position 1618, causing the serine (S) at amino acid position 540 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.018

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.10

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.45

M_CAP

Benign

0.0042

MetaRNN

Benign

0.026

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.51

REVEL

Benign

0.038

Sift

Benign

0.046

Sift4G

Benign

0.11

Polyphen

0.018

Vest4

0.12

MVP

0.055

MPC

0.060

ClinPred

0.044

GERP RS

4.8

Varity_R

0.087

gMVP

0.056

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