1-161784012-T-A

Variant names:

• chr1-161784012-T-A
• rs2271013
• NM_007348.4:c.270T>A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_007348.4(ATF6):​c.270T>A​(p.Pro90Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,180 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P90P) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ATF6 NM_007348.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.840
• Publications: 0 publications found

Genes affected

ATF6 (HGNC:791): (activating transcription factor 6) This gene encodes a transcription factor that activates target genes for the unfolded protein response (UPR) during endoplasmic reticulum (ER) stress. Although it is a transcription factor, this protein is unusual in that it is synthesized as a transmembrane protein that is embedded in the ER. It functions as an ER stress sensor/transducer, and following ER stress-induced proteolysis, it functions as a nuclear transcription factor via a cis-acting ER stress response element (ERSE) that is present in the promoters of genes encoding ER chaperones. This protein has been identified as a survival factor for quiescent but not proliferative squamous carcinoma cells. There have been conflicting reports about the association of polymorphisms in this gene with diabetes in different populations, but another polymorphism has been associated with increased plasma cholesterol levels. This gene is also thought to be a potential therapeutic target for cystic fibrosis. [provided by RefSeq, Aug 2011]

ATF6 Gene-Disease associations (from GenCC):

• achromatopsia 7

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• ATF6-related retinopathy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• achromatopsia

  Inheritance: Unknown, AR Classification: STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet
• cone-rod dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.46).
• BP7: Synonymous conserved (PhyloP=0.84 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007348.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATF6	NM_007348.4	MANE Select	c.270T>A	p.Pro90Pro	synonymous	Exon 4 of 16	NP_031374.2	P18850
	ATF6	NM_001437597.1		c.270T>A	p.Pro90Pro	synonymous	Exon 4 of 16	NP_001424526.1	A0A7P0Z421
	ATF6	NM_001410890.1		c.270T>A	p.Pro90Pro	synonymous	Exon 4 of 16	NP_001397819.1	A0A7P0TAF2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATF6	ENST00000367942.4	TSL:1 MANE Select	c.270T>A	p.Pro90Pro	synonymous	Exon 4 of 16	ENSP00000356919.3	P18850
	ATF6	ENST00000681492.1		c.270T>A	p.Pro90Pro	synonymous	Exon 4 of 17	ENSP00000506139.1	A0A7P0TAH1
	ATF6	ENST00000951832.1		c.270T>A	p.Pro90Pro	synonymous	Exon 4 of 17	ENSP00000621891.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460180 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 726486

African (AFR) AF: 0.00 AC: 0 AN: 33442

American (AMR) AF: 0.00 AC: 0 AN: 44698

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39622

South Asian (SAS) AF: 0.00 AC: 0 AN: 86208

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53396

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1110606

Other (OTH) AF: 0.0000166 AC: 1 AN: 60330

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.46
CADD	Benign	9.3
DANN	Benign	0.78
PhyloP100		0.84
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs2271013; hg19: chr1-161753802;