rs1057517567

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PM2

The NM_001407446.1(APC):​c.3G>A​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000146 in 1,370,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 8.2e-7 ( 0 hom. )

Consequence

APC
NM_001407446.1 start_lost

Scores

4
7
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 3.45

Publications

1 publications found
Variant links:
Genes affected
APC (HGNC:583): (APC regulator of WNT signaling pathway) This gene encodes a tumor suppressor protein that acts as an antagonist of the Wnt signaling pathway. It is also involved in other processes including cell migration and adhesion, transcriptional activation, and apoptosis. Defects in this gene cause familial adenomatous polyposis (FAP), an autosomal dominant pre-malignant disease that usually progresses to malignancy. Mutations in the APC gene have been found to occur in most colorectal cancers, where disease-associated mutations tend to be clustered in a small region designated the mutation cluster region (MCR) and result in a truncated protein product. [provided by RefSeq, Jun 2022]
APC Gene-Disease associations (from GenCC):
  • classic or attenuated familial adenomatous polyposis
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • desmoid tumor
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
  • familial adenomatous polyposis 1
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • gastric adenocarcinoma and proximal polyposis of the stomach
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
  • sarcoma
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • APC-related attenuated familial adenomatous polyposis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Turcot syndrome with polyposis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Cenani-Lenz syndactyly syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1
Start lost variant, next in-frame start position is after 16 pathogenic variants. Next in-frame start position is after 70 codons. Genomic position: 112766368. Lost 0.024 part of the original CDS.
PM2
Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001407446.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
APC
NM_001407446.1
c.3G>Ap.Met1?
start_lost
Exon 1 of 16NP_001394375.1
APC
NM_001354897.2
c.3G>Ap.Met1?
start_lost
Exon 1 of 15NP_001341826.1
APC
NM_001127511.3
c.3G>Ap.Met1?
start_lost
Exon 1 of 14NP_001120983.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
APC
ENST00000507379.6
TSL:2
c.3G>Ap.Met1?
start_lost
Exon 1 of 14ENSP00000423224.2
APC
ENST00000505350.2
TSL:3
n.3G>A
non_coding_transcript_exon
Exon 1 of 16ENSP00000481752.1
APC
ENST00000713636.1
n.-181G>A
non_coding_transcript_exon
Exon 1 of 17ENSP00000518937.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
8.21e-7
AC:
1
AN:
1218380
Hom.:
0
Cov.:
31
AF XY:
0.00000168
AC XY:
1
AN XY:
595230
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
28306
American (AMR)
AF:
0.00
AC:
0
AN:
30764
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21056
East Asian (EAS)
AF:
0.00
AC:
0
AN:
24242
South Asian (SAS)
AF:
0.00
AC:
0
AN:
76906
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
13132
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4894
European-Non Finnish (NFE)
AF:
0.00000103
AC:
1
AN:
970780
Other (OTH)
AF:
0.00
AC:
0
AN:
48300
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Familial adenomatous polyposis 1 (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.26
CADD
Benign
20
DANN
Uncertain
0.99
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.90
D
MetaRNN
Pathogenic
0.97
D
MetaSVM
Uncertain
0.73
D
PhyloP100
3.5
PROVEAN
Benign
-0.060
N
REVEL
Uncertain
0.59
Sift
Pathogenic
0.0
D
MutPred
0.90
Gain of sheet (P = 0.039)
MVP
0.90
ClinPred
0.97
D
GERP RS
4.0
PromoterAI
-0.017
Neutral
Mutation Taster
=279/21
polymorphism

Splicing

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

Publications

Other links and lift over

dbSNP: rs1057517567; hg19: chr5-112043417; API