NM_000038.6:c.-19+141T>C

Variant names:

• chr5-112738066-T-C
• rs74393987
• NM_000038.6:c.-19+141T>C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000038.6(APC):​c.-19+141T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as other (no stars).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: APC NM_000038.6 intron
• Clinical Significance: other no assertion criteria provided O:1
• Conservation: PhyloP100: 0.567
• Publications: 1 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: 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

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APC	NM_000038.6	c.-19+141T>C		intron_variant	Intron 1 of 15	ENST00000257430.9	NP_000029.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APC	ENST00000257430.9	c.-19+141T>C		intron_variant	Intron 1 of 15	5	NM_000038.6	ENSP00000257430.4

Frequencies

GnomAD3 genomes AF: 0.00000664 AC: 1 AN: 150642 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: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000148

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 356958 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 168168

African (AFR) AF: 0.00 AC: 0 AN: 6774

American (AMR) AF: 0.00 AC: 0 AN: 416

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 2192

East Asian (EAS) AF: 0.00 AC: 0 AN: 1522

South Asian (SAS) AF: 0.00 AC: 0 AN: 7076

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 124

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 736

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 326442

Other (OTH) AF: 0.00 AC: 0 AN: 11676

GnomAD4 genome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000664 AC: 1 AN: 150642 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 73512

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 40810

American (AMR) AF: 0.00 AC: 0 AN: 15128

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5086

South Asian (SAS) AF: 0.00 AC: 0 AN: 4752

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 312

European-Non Finnish (NFE) AF: 0.0000148 AC: 1 AN: 67702

Other (OTH) AF: 0.00 AC: 0 AN: 2070

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: other

Submissions summary: Other:1

Revision: no assertion criteria provided

Submissions by phenotype

Familial colorectal cancer Other:1

-

Systems Biology Platform Zhejiang California International NanoSystems Institute

Significance: other

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	9.4
DANN	Benign	0.24
PhyloP100		0.57
PromoterAI		-0.060	Neutral

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

Other links and lift over

dbSNP: rs74393987; hg19: chr5-112073763;