12-50809577-A-G

Position:

• chr12-50809577-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005171.5(ATF1):​c.316A>G​(p.Ser106Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ATF1 NM_005171.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.68

Genes affected

ATF1 (HGNC:783): (activating transcription factor 1) This gene encodes an activating transcription factor, which belongs to the ATF subfamily and bZIP (basic-region leucine zipper) family. It influences cellular physiologic processes by regulating the expression of downstream target genes, which are related to growth, survival, and other cellular activities. This protein is phosphorylated at serine 63 in its kinase-inducible domain by serine/threonine kinases, cAMP-dependent protein kinase A, calmodulin-dependent protein kinase I/II, mitogen- and stress-activated protein kinase and cyclin-dependent kinase 3 (cdk-3). Its phosphorylation enhances its transactivation and transcriptional activities, and enhances cell transformation. Fusion of this gene and FUS on chromosome 16 or EWSR1 on chromosome 22 induced by translocation generates chimeric proteins in angiomatoid fibrous histiocytoma and clear cell sarcoma. This gene has a pseudogene on chromosome 6. [provided by RefSeq, Aug 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2883072).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ATF1	NM_005171.5	c.316A>G	p.Ser106Gly	missense_variant	4/7	ENST00000262053.8	NP_005162.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ATF1	ENST00000262053.8	c.316A>G	p.Ser106Gly	missense_variant	4/7	1	NM_005171.5	ENSP00000262053.3
ATF1	ENST00000552487.1	c.316A>G	p.Ser106Gly	missense_variant	4/6	5		ENSP00000448921.1
ATF1	ENST00000552510.5	c.316A>G	p.Ser106Gly	missense_variant	4/5	5		ENSP00000448592.1
ATF1	ENST00000551831.5	n.94-4433A>G		intron_variant		2		ENSP00000448987.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 27, 2024

The c.316A>G (p.S106G) alteration is located in exon 4 (coding exon 3) of the ATF1 gene. This alteration results from a A to G substitution at nucleotide position 316, causing the serine (S) at amino acid position 106 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	0.12
BayesDel_addAF	Uncertain	0.018	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.082	T;T;T
Eigen	Benign	0.12
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.93	D;D;D
M_CAP	Benign	0.033	D
MetaRNN	Benign	0.29	T;T;T
MetaSVM	Benign	-0.46	T
MutationAssessor	Uncertain	2.1	.;M;.
PrimateAI	Uncertain	0.56	T
PROVEAN	Uncertain	-2.5	N;N;D
REVEL	Benign	0.14
Sift	Benign	0.063	T;T;D
Sift4G	Uncertain	0.0050	D;T;D
Polyphen		0.12	.;B;.
Vest4		0.21
MutPred		0.38		Gain of catalytic residue at Q108 (P = 6e-04);Gain of catalytic residue at Q108 (P = 6e-04);Gain of catalytic residue at Q108 (P = 6e-04);
MVP		0.77
MPC		0.28
ClinPred		0.95	D
GERP RS		4.6
Varity_R		0.087
gMVP		0.21

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: rs1941691636; hg19: chr12-51203360;