5-112792515-G-C

Variant names:

• chr5-112792515-G-C
• rs777760565
• NM_000038.6:c.715G>C

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BS1 BS2 BP1

This summary comes from the ClinGen Evidence Repository: The c.715G>C variant in APC is a missense variant predicted to cause substitution of alanine by proline at amino acid 239 (p.Ala239Pro). This variant has been observed in ≥ 35 heterozygous individuals with no features or family history of FAP, worth ≥ 10 healthy individual points (BS2; Ambry, Invitae internal data). The highest allele frequency of this variant in gnomAD v2.1.1 (non-cancer) is 0.0002269 in East Asian population, which is higher than the ClinGen InSiGHT Hereditary Colorectal Cancer/Polyposis Variant Curation Expert Panel (HCCP VCEP) threshold (≥ 0.00001) for BS1 (BS1). Finally, APC is defined by the HCCP VCEP as a gene for which primarily truncating variants are known to cause disease (BP1). In summary, this variant meets the criteria to be classified as Benign for FAP based on the ACMG/AMP criteria applied, as specified by the HCCP VCEP: BS1, BS2, BP1. (VCEP specifications version 1; date of approval 12/12/2022). LINK:https://erepo.genome.network/evrepo/ui/classification/CA047113/MONDO:0021056/089

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: APC NM_000038.6 missense
• Clinical Significance: Benign reviewed by expert panel U:5 B:3
• Conservation: PhyloP100: 3.93
• Publications: 11 publications found

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: Orphanet, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
• 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

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• BP1: For more information check the summary or visit ClinGen Evidence Repository.
• BS1: For more information check the summary or visit ClinGen Evidence Repository.
• BS2: For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000038.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APC	NM_000038.6	MANE Select	c.715G>C	p.Ala239Pro	missense	Exon 7 of 16	NP_000029.2
	APC	NM_001407446.1		c.745G>C	p.Ala249Pro	missense	Exon 6 of 16	NP_001394375.1
	APC	NM_001354896.2		c.715G>C	p.Ala239Pro	missense	Exon 7 of 17	NP_001341825.1	R4GMU6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APC	ENST00000257430.9	TSL:5 MANE Select	c.715G>C	p.Ala239Pro	missense	Exon 7 of 16	ENSP00000257430.4	P25054-1
	APC	ENST00000508376.6	TSL:1	c.715G>C	p.Ala239Pro	missense	Exon 8 of 17	ENSP00000427089.2	P25054-1
	APC	ENST00000502371.3	TSL:1	n.715G>C		non_coding_transcript_exon	Exon 6 of 12	ENSP00000484935.2	A0A087X2F3

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000159 AC: 4 AN: 251184 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000218

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1460092 Hom.: 0 Cov.: 29 AF XY: 0.00000551 AC XY: 4 AN XY: 726434

African (AFR) AF: 0.00 AC: 0 AN: 33410

American (AMR) AF: 0.00 AC: 0 AN: 44692

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26088

East Asian (EAS) AF: 0.000127 AC: 5 AN: 39484

South Asian (SAS) AF: 0.00 AC: 0 AN: 86204

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53260

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5750

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110902

Other (OTH) AF: 0.00 AC: 0 AN: 60302

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152294 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74476

African (AFR) AF: 0.00 AC: 0 AN: 41568

American (AMR) AF: 0.00 AC: 0 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

Asia WGS AF: 0.000289 AC: 1 AN: 3474

ClinVar

ClinVar submissions

Significance: Benign

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
-	3	1	Familial adenomatous polyposis 1 (4)
-	1	1	Hereditary cancer-predisposing syndrome (2)
-	1	-	Classic or attenuated familial adenomatous polyposis (1)
-	-	1	Ovarian cancer (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.081
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.16
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.36	T
Eigen	Benign	-0.084
Eigen_PC	Benign	0.10
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.034	D
MetaRNN	Benign	0.19	T
MetaSVM	Uncertain	-0.097	T
MutationAssessor	Benign	0.81	L
PhyloP100		3.9
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-0.71	N
REVEL	Benign	0.18
Sift	Benign	0.080	T
Sift4G	Benign	0.27	T
Polyphen		0.0	B
Vest4		0.38
MutPred		0.22		Gain of sheet (P = 0.0036)
MVP		0.84
ClinPred		0.14	T
GERP RS		4.2
Varity_R		0.56
gMVP		0.40
Mutation Taster		=67/33	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
Splicevardb		2.0
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

Other links and lift over

dbSNP: rs777760565; hg19: chr5-112128212;