chr18-3451541-GA-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBA1

The NM_003244.4(TGIF1):​c.16+1037del variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0898 in 1,008,350 control chromosomes in the GnomAD database, including 4,204 homozygotes. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.074 ( 443 hom., cov: 31)
Exomes 𝑓: 0.093 ( 3761 hom. )

Consequence

TGIF1
NM_003244.4 intron

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.211
Variant links:
Genes affected
TGIF1 (HGNC:11776): (TGFB induced factor homeobox 1) The protein encoded by this gene is a member of the three-amino acid loop extension (TALE) superclass of atypical homeodomains. TALE homeobox proteins are highly conserved transcription regulators. This particular homeodomain binds to a previously characterized retinoid X receptor responsive element from the cellular retinol-binding protein II promoter. In addition to its role in inhibiting 9-cis-retinoic acid-dependent RXR alpha transcription activation of the retinoic acid responsive element, the protein is an active transcriptional co-repressor of SMAD2 and may participate in the transmission of nuclear signals during development and in the adult. Mutations in this gene are associated with holoprosencephaly type 4, which is a structural anomaly of the brain. Alternative splicing has been observed at this locus and multiple splice variants encoding distinct isoforms are described. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant 18-3451541-GA-G is Benign according to our data. Variant chr18-3451541-GA-G is described in ClinVar as [Benign]. Clinvar id is 674962.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0885 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TGIF1NM_003244.4 linkuse as main transcriptc.16+1037del intron_variant ENST00000343820.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TGIF1ENST00000343820.10 linkuse as main transcriptc.16+1037del intron_variant 1 NM_003244.4 P1Q15583-2

Frequencies

GnomAD3 genomes
AF:
0.0744
AC:
11325
AN:
152150
Hom.:
440
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0576
Gnomad AMI
AF:
0.0757
Gnomad AMR
AF:
0.0656
Gnomad ASJ
AF:
0.158
Gnomad EAS
AF:
0.0139
Gnomad SAS
AF:
0.0771
Gnomad FIN
AF:
0.0518
Gnomad MID
AF:
0.0759
Gnomad NFE
AF:
0.0903
Gnomad OTH
AF:
0.0755
GnomAD4 exome
AF:
0.0926
AC:
79256
AN:
856082
Hom.:
3761
Cov.:
7
AF XY:
0.0925
AC XY:
36655
AN XY:
396266
show subpopulations
Gnomad4 AFR exome
AF:
0.0524
Gnomad4 AMR exome
AF:
0.0353
Gnomad4 ASJ exome
AF:
0.138
Gnomad4 EAS exome
AF:
0.0118
Gnomad4 SAS exome
AF:
0.0782
Gnomad4 FIN exome
AF:
0.0481
Gnomad4 NFE exome
AF:
0.0942
Gnomad4 OTH exome
AF:
0.0934
GnomAD4 genome
AF:
0.0745
AC:
11338
AN:
152268
Hom.:
443
Cov.:
31
AF XY:
0.0719
AC XY:
5355
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.0576
Gnomad4 AMR
AF:
0.0655
Gnomad4 ASJ
AF:
0.158
Gnomad4 EAS
AF:
0.0139
Gnomad4 SAS
AF:
0.0766
Gnomad4 FIN
AF:
0.0518
Gnomad4 NFE
AF:
0.0904
Gnomad4 OTH
AF:
0.0790
Bravo
AF:
0.0740
Asia WGS
AF:
0.0710
AC:
247
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 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs150513143; hg19: chr18-3451539; API