rs7612462

Variant names:

• chr3-61185014-G-A
• rs7612462
• NM_002012.4:c.-164+15603C>T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_Moderate BA1

The NM_002012.4(FHIT):​c.-164+15603C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0379 in 152,224 control chromosomes in the GnomAD database, including 359 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 0.038 (359 hom., cov: 32)
• Consequence: FHIT NM_002012.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.12

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 -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.34).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.127 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FHIT	NM_002012.4	c.-164+15603C>T		intron_variant	Intron 2 of 9	ENST00000492590.6	NP_002003.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FHIT	ENST00000492590.6	c.-164+15603C>T		intron_variant	Intron 2 of 9	1	NM_002012.4	ENSP00000418582.1

Frequencies

GnomAD3 genomes AF: 0.0378 AC: 5756 AN: 152106 Hom.: 358 Cov.: 32

Gnomad AFR AF: 0.130

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0162

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0158

Gnomad NFE AF: 0.000617

Gnomad OTH AF: 0.0302

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

GnomAD4 genome AF: 0.0379 AC: 5771 AN: 152224 Hom.: 359 Cov.: 32 AF XY: 0.0367 AC XY: 2733 AN XY: 74430

Gnomad4 AFR AF: 0.130

Gnomad4 AMR AF: 0.0162

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000830

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000618

Gnomad4 OTH AF: 0.0299

Alfa AF: 0.0208 Hom.: 26

Bravo AF: 0.0433

Asia WGS AF: 0.00779 AC: 28 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.34
CADD	Benign	16
DANN	Benign	0.65

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: rs7612462; hg19: chr3-61170688;