Variant chr12-25206418-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_004985.5(KRAS):c.*3377C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.509 in 203,408 control chromosomes in the GnomAD database, including 27,720 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.49 ( 19377 hom., cov: 32)

Exomes 𝑓: 0.56 ( 8343 hom. )

Consequence

KRAS
NM_004985.5 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.99

Variant links:

Genes affected

KRAS (HGNC:6407): (KRAS proto-oncogene, GTPase) This gene, a Kirsten ras oncogene homolog from the mammalian ras gene family, encodes a protein that is a member of the small GTPase superfamily. A single amino acid substitution is responsible for an activating mutation. The transforming protein that results is implicated in various malignancies, including lung adenocarcinoma, mucinous adenoma, ductal carcinoma of the pancreas and colorectal carcinoma. Alternative splicing leads to variants encoding two isoforms that differ in the C-terminal region. [provided by RefSeq, Jul 2008]

KRAS links:

ETFRF1 (HGNC:27052): (electron transfer flavoprotein regulatory factor 1) Involved in respiratory electron transport chain. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

ETFRF1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.59).

BP6

Variant 12-25206418-G-A is Benign according to our data. Variant chr12-25206418-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 308076.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.779 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KRAS	NM_004985.5 linkuse as main transcript	c.*3377C>T		3_prime_UTR_variant	5/5	ENST00000311936.8
KRAS	NM_033360.4 linkuse as main transcript	c.*3498C>T		3_prime_UTR_variant	6/6	ENST00000256078.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KRAS	ENST00000256078.10 linkuse as main transcript	c.*3498C>T		3_prime_UTR_variant	6/6	1	NM_033360.4	A1	P01116-1
KRAS	ENST00000311936.8 linkuse as main transcript	c.*3377C>T		3_prime_UTR_variant	5/5	1	NM_004985.5	P4	P01116-2

Frequencies

GnomAD3 genomes

AF:

0.493

AC:

74825

AN:

151788

Hom.:

19366

Cov.:

show subpopulations

Gnomad AFR

AF:

0.328

Gnomad AMI

AF:

0.401

Gnomad AMR

AF:

0.501

Gnomad ASJ

AF:

0.625

Gnomad EAS

AF:

0.800

Gnomad SAS

AF:

0.669

Gnomad FIN

AF:

0.544

Gnomad MID

AF:

0.535

Gnomad NFE

AF:

0.542

Gnomad OTH

AF:

0.506

GnomAD4 exome

AF:

0.557

AC:

28707

AN:

51502

Hom.:

8343

Cov.:

AF XY:

0.560

AC XY:

13379

AN XY:

23900

show subpopulations

Gnomad4 AFR exome

AF:

0.314

Gnomad4 AMR exome

AF:

0.468

Gnomad4 ASJ exome

AF:

0.631

Gnomad4 EAS exome

AF:

0.781

Gnomad4 SAS exome

AF:

0.662

Gnomad4 FIN exome

AF:

0.504

Gnomad4 NFE exome

AF:

0.522

Gnomad4 OTH exome

AF:

0.526

GnomAD4 genome

AF:

0.493

AC:

74866

AN:

151906

Hom.:

19377

Cov.:

AF XY:

0.499

AC XY:

37014

AN XY:

74238

show subpopulations

Gnomad4 AFR

AF:

0.328

Gnomad4 AMR

AF:

0.501

Gnomad4 ASJ

AF:

0.625

Gnomad4 EAS

AF:

0.799

Gnomad4 SAS

AF:

0.668

Gnomad4 FIN

AF:

0.544

Gnomad4 NFE

AF:

0.542

Gnomad4 OTH

AF:

0.507

Alfa

AF:

0.515

Hom.:

4206

Bravo

AF:

0.482

Asia WGS

AF:

0.689

AC:

2394

AN:

3472

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Noonan syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Benign

0.73

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over