rs554351451

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_001407446.1(APC):c.-204A>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000373 in 461,702 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00072 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

APC
NM_001407446.1 5_prime_UTR

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 2.17

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

APC links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.42).

BP6

Variant 5-112707514-A-G is Benign according to our data. Variant chr5-112707514-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 469859.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000716 (109/152196) while in subpopulation AMR AF = 0.0068 (104/15290). AF 95% confidence interval is 0.00574. There are 1 homozygotes in GnomAd4. There are 78 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

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

Gene	Transcript	HGVSc	Effect	Exon Rank	Protein
APC	NM_001407446.1	c.-204A>G	5_prime_UTR	Exon 1 of 16	NP_001394375.1
APC	NM_001407447.1	c.-387A>G	5_prime_UTR	Exon 1 of 17	NP_001394376.1
APC	NM_001407448.1	c.-154A>G	5_prime_UTR	Exon 1 of 17	NP_001394377.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
APC	ENST00000951167.1		c.-154A>G	5_prime_UTR	Exon 1 of 17	ENSP00000621226.1
APC	ENST00000509732.6	TSL:4	c.-154A>G	upstream_gene	N/A	ENSP00000426541.2
APC	ENST00000507379.6	TSL:2	c.-204A>G	upstream_gene	N/A	ENSP00000423224.2

Frequencies

GnomAD3 genomes

AF:

0.000717

AC:

109

AN:

152078

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00681

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000204

AC:

AN:

309506

Hom.:

Cov.:

AF XY:

0.000198

AC XY:

AN XY:

161262

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

9530

American (AMR)

AF:

0.00394

AC:

AN:

14458

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

9750

East Asian (EAS)

AF:

0.00

AC:

AN:

19638

South Asian (SAS)

AF:

0.0000221

AC:

AN:

45296

European-Finnish (FIN)

AF:

0.00

AC:

AN:

8944

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1356

European-Non Finnish (NFE)

AF:

0.0000273

AC:

AN:

183230

Other (OTH)

AF:

0.00

AC:

AN:

17304

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.000716

AC:

109

AN:

152196

Hom.:

Cov.:

AF XY:

0.00105

AC XY:

AN XY:

74402

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41528

American (AMR)

AF:

0.00680

AC:

104

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10592

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.528

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.000552

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

APC-related disorder (1)

Familial adenomatous polyposis 1 (1)

Neoplasm of stomach;C0699790:Carcinoma of colon;C1851124:Desmoid disease, hereditary;C2239176:Hepatocellular carcinoma;C2713442:Familial adenomatous polyposis 1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Benign

0.68

PhyloP100

2.2

PromoterAI

-0.093

Neutral

(source)

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over