2-48672377-C-G

Position:

• chr2-48672377-C-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_006872.5(GTF2A1L):​c.1329+697C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.166 in 152,042 control chromosomes in the GnomAD database, including 2,616 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.17 (2616 hom., cov: 32)
• Consequence: GTF2A1L NM_006872.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.273

Genes affected

GTF2A1L (HGNC:30727): (general transcription factor IIA subunit 1 like) The assembly and stability of the RNA polymerase II transcription pre-initiation complex on a eukaryotic core promoter involve the effects of transcription factor IIA (TFIIA) on the interaction between TATA-binding protein (TBP) and DNA. This gene encodes a germ cell-specific counterpart of the large (alpha/beta) subunit of general transcription factor TFIIA that is able to stabilize the binding of TBP to DNA and may be uniquely important to testis biology. Alternative splicing for this locus has been observed and two variants, encoding distinct isoforms, have been identified. Co-transcription of this gene and the neighboring upstream gene generates a rare transcript (SALF), which encodes a fusion protein comprised of sequence sharing identity with each individual gene product. [provided by RefSeq, Mar 2014]

STON1-GTF2A1L (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.23 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GTF2A1L	NM_006872.5	c.1329+697C>G		intron_variant		ENST00000403751.8	NP_006863.2
STON1-GTF2A1L	NM_001198593.2	c.3441+697C>G		intron_variant			NP_001185522.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GTF2A1L	ENST00000403751.8	c.1329+697C>G		intron_variant		1	NM_006872.5	ENSP00000384597	P1
GTF2A1L	ENST00000430487.6	c.1227+697C>G		intron_variant		2		ENSP00000387896
GTF2A1L	ENST00000508440.1	c.276+697C>G		intron_variant		2		ENSP00000421474

Frequencies

GnomAD3 genomes AF: 0.166 AC: 25262 AN: 151924 Hom.: 2614 Cov.: 32

Gnomad AFR AF: 0.0522

Gnomad AMI AF: 0.298

Gnomad AMR AF: 0.189

Gnomad ASJ AF: 0.142

Gnomad EAS AF: 0.0707

Gnomad SAS AF: 0.242

Gnomad FIN AF: 0.237

Gnomad MID AF: 0.136

Gnomad NFE AF: 0.221

Gnomad OTH AF: 0.161

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.166 AC: 25268 AN: 152042 Hom.: 2616 Cov.: 32 AF XY: 0.168 AC XY: 12484 AN XY: 74344

Gnomad4 AFR AF: 0.0520

Gnomad4 AMR AF: 0.189

Gnomad4 ASJ AF: 0.142

Gnomad4 EAS AF: 0.0704

Gnomad4 SAS AF: 0.241

Gnomad4 FIN AF: 0.237

Gnomad4 NFE AF: 0.221

Gnomad4 OTH AF: 0.164

Alfa AF: 0.187 Hom.: 374

Bravo AF: 0.154

Asia WGS AF: 0.193 AC: 668 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	4.2
DANN	Benign	0.64

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

Other links and lift over

dbSNP: rs13024367; hg19: chr2-48899516;