chr3-60517705-A-G

Position:

• chr3-60517705-A-G

Variant summary

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

The NM_002012.4(FHIT):​c.103+19155T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.138 in 152,258 control chromosomes in the GnomAD database, including 1,538 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 0.14 (1538 hom., cov: 33)
• Consequence: FHIT NM_002012.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0240

Genes affected

FHIT (HGNC:3701): (fragile histidine triad diadenosine triphosphatase) The protein encoded by this gene is a P1-P3-bis(5'-adenosyl) triphosphate hydrolase involved in purine metabolism. This gene encompasses the common fragile site FRA3B on chromosome 3, where carcinogen-induced damage can lead to translocations and aberrant transcripts. In fact, aberrant transcripts from this gene have been found in about half of all esophageal, stomach, and colon carcinomas. The encoded protein is also a tumor suppressor, as loss of its activity results in replication stress and DNA damage. [provided by RefSeq, Aug 2017]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.228 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FHIT	NM_002012.4	c.103+19155T>C		intron_variant		ENST00000492590.6	NP_002003.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FHIT	ENST00000492590.6	c.103+19155T>C		intron_variant		1	NM_002012.4	ENSP00000418582.1
FHIT	ENST00000476844.5	c.103+19155T>C		intron_variant		1		ENSP00000417557.1
FHIT	ENST00000468189.5	c.103+19155T>C		intron_variant		2		ENSP00000417480.1
FHIT	ENST00000488467.5	c.103+19155T>C		intron_variant		3		ENSP00000418596.1

Frequencies

GnomAD3 genomes AF: 0.137 AC: 20918 AN: 152140 Hom.: 1535 Cov.: 33

Gnomad AFR AF: 0.145

Gnomad AMI AF: 0.0760

Gnomad AMR AF: 0.185

Gnomad ASJ AF: 0.118

Gnomad EAS AF: 0.163

Gnomad SAS AF: 0.239

Gnomad FIN AF: 0.147

Gnomad MID AF: 0.158

Gnomad NFE AF: 0.113

Gnomad OTH AF: 0.130

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

GnomAD4 genome AF: 0.138 AC: 20937 AN: 152258 Hom.: 1538 Cov.: 33 AF XY: 0.144 AC XY: 10729 AN XY: 74444

Gnomad4 AFR AF: 0.145

Gnomad4 AMR AF: 0.185

Gnomad4 ASJ AF: 0.118

Gnomad4 EAS AF: 0.163

Gnomad4 SAS AF: 0.239

Gnomad4 FIN AF: 0.147

Gnomad4 NFE AF: 0.113

Gnomad4 OTH AF: 0.130

Alfa AF: 0.114 Hom.: 691

Bravo AF: 0.137

Asia WGS AF: 0.209 AC: 728 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.7
DANN	Benign	0.81

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: rs17063416; hg19: chr3-60503438;