rs147406419

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS1

This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.24A>G (p.Val8=) variant in the KRAS gene is 0.0499% (35/51828) of European chromosomes by the Exome Aggregation Consortium, which is a high enough frequency to be classified as likely benign based on thresholds defined by the ClinGen RASopathy Expert Panel (BS1; PMID:29493581) LINK:https://erepo.genome.network/evrepo/ui/classification/CA135558/MONDO:0021060/004

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00048 ( 0 hom. )

Consequence

KRAS
NM_004985.5 synonymous

Scores

2

Clinical Significance

Likely benign reviewed by expert panel B:15

Conservation

PhyloP100: 0.144

Publications

13 publications found
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 Gene-Disease associations (from GenCC):
  • cardiofaciocutaneous syndrome 2
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • Noonan syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Noonan syndrome 3
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp, G2P
  • cardiofaciocutaneous syndrome
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • linear nevus sebaceous syndrome
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Costello syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome with multiple lentigines
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome-like disorder with loose anagen hair
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS1
For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004985.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRAS
NM_033360.4
MANE Plus Clinical
c.24A>Gp.Val8Val
synonymous
Exon 2 of 6NP_203524.1P01116-1
KRAS
NM_004985.5
MANE Select
c.24A>Gp.Val8Val
synonymous
Exon 2 of 5NP_004976.2
KRAS
NM_001369786.1
c.24A>Gp.Val8Val
synonymous
Exon 2 of 6NP_001356715.1P01116-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRAS
ENST00000256078.10
TSL:1 MANE Plus Clinical
c.24A>Gp.Val8Val
synonymous
Exon 2 of 6ENSP00000256078.5P01116-1
KRAS
ENST00000311936.8
TSL:1 MANE Select
c.24A>Gp.Val8Val
synonymous
Exon 2 of 5ENSP00000308495.3P01116-2
KRAS
ENST00000556131.2
TSL:1
c.24A>Gp.Val8Val
synonymous
Exon 2 of 3ENSP00000451856.1G3V4K2

Frequencies

GnomAD3 genomes
AF:
0.000230
AC:
35
AN:
152242
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000470
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000245
AC:
61
AN:
248556
AF XY:
0.000238
show subpopulations
Gnomad AFR exome
AF:
0.000125
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000508
Gnomad OTH exome
AF:
0.000329
GnomAD4 exome
AF:
0.000484
AC:
707
AN:
1460222
Hom.:
0
Cov.:
31
AF XY:
0.000435
AC XY:
316
AN XY:
726306
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33464
American (AMR)
AF:
0.0000224
AC:
1
AN:
44612
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26050
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85898
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53366
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000612
AC:
680
AN:
1111088
Other (OTH)
AF:
0.000365
AC:
22
AN:
60312
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
34
68
103
137
171
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
34
68
102
136
170
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.000202
AC XY:
15
AN XY:
74380
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000470
AC:
32
AN:
68044
Other (OTH)
AF:
0.000478
AC:
1
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000507
Hom.:
0
Bravo
AF:
0.000230

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
7
not provided (7)
-
-
4
not specified (4)
-
-
2
RASopathy (2)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Malignant tumor of urinary bladder;C0023467:Acute myeloid leukemia;C0024623:Gastric cancer;C0235974:Carcinoma of pancreas;C0242379:Lung cancer;C0346153:Familial cancer of breast;C0917804:Cerebral arteriovenous malformation;C1838329:Toriello-Lacassie-Droste syndrome;C1860991:Noonan syndrome 3;C2674723:Autoimmune lymphoproliferative syndrome type 4;C3809005:Cardiofaciocutaneous syndrome 2;C4552097:Linear nevus sebaceous syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
9.2
DANN
Benign
0.75
PhyloP100
0.14
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Mutation Taster
=81/19
polymorphism

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

Other links and lift over

dbSNP: rs147406419; hg19: chr12-25398295; API
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