4-186588700-G-T

Variant names:

• chr4-186588700-G-T
• NM_005245.4:c.13659C>A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PVS1_Moderate PM2

The NM_005245.4(FAT1):​c.13659C>A​(p.Cys4553*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: FAT1 NM_005245.4 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.389

Genes affected

FAT1 (HGNC:3595): (FAT atypical cadherin 1) This gene is an ortholog of the Drosophila fat gene, which encodes a tumor suppressor essential for controlling cell proliferation during Drosophila development. The gene product is a member of the cadherin superfamily, a group of integral membrane proteins characterized by the presence of cadherin-type repeats. In addition to containing 34 tandem cadherin-type repeats, the gene product has five epidermal growth factor (EGF)-like repeats and one laminin A-G domain. This gene is expressed at high levels in a number of fetal epithelia. Its product probably functions as an adhesion molecule and/or signaling receptor, and is likely to be important in developmental processes and cell communication. Transcript variants derived from alternative splicing and/or alternative promoter usage exist, but they have not been fully described. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.00784 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAT1	NM_005245.4	c.13659C>A	p.Cys4553*	stop_gained	Exon 27 of 27	ENST00000441802.7	NP_005236.2
FAT1	XM_005262834.4	c.13695C>A	p.Cys4565*	stop_gained	Exon 28 of 28		XP_005262891.1
FAT1	XM_005262835.3	c.13695C>A	p.Cys4565*	stop_gained	Exon 28 of 28		XP_005262892.1
FAT1	XM_006714139.4	c.13659C>A	p.Cys4553*	stop_gained	Exon 27 of 27		XP_006714202.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAT1	ENST00000441802.7	c.13659C>A	p.Cys4553*	stop_gained	Exon 27 of 27	5	NM_005245.4	ENSP00000406229.2
FAT1	ENST00000512772.5	c.996C>A	p.Cys332*	stop_gained	Exon 4 of 4	2		ENSP00000424157.1
FAT1	ENST00000500085.2	n.1351C>A		non_coding_transcript_exon_variant	Exon 3 of 3	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.32
CADD	Pathogenic	35
DANN	Benign	0.95
Eigen	Benign	-0.16
Eigen_PC	Benign	-0.47
FATHMM_MKL	Benign	0.72	D
Vest4		0.75
GERP RS		-8.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-187509854;