5-112707853-A-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001407446.1(APC):ā€‹c.136A>Cā€‹(p.Thr46Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000493 in 1,217,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/12 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000049 ( 0 hom. )

Consequence

APC
NM_001407446.1 missense

Scores

2
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.413
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11718443).
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
APCNM_001407446.1 linkuse as main transcriptc.136A>C p.Thr46Pro missense_variant 1/16 NP_001394375.1
APCNM_001354897.2 linkuse as main transcriptc.136A>C p.Thr46Pro missense_variant 1/15 NP_001341826.1
APCNM_001127511.3 linkuse as main transcriptc.136A>C p.Thr46Pro missense_variant 1/14 NP_001120983.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
APCENST00000507379.6 linkuse as main transcriptc.136A>C p.Thr46Pro missense_variant 1/142 ENSP00000423224
APCENST00000509732.6 linkuse as main transcriptc.-19+204A>C intron_variant 4 ENSP00000426541 P1
APCENST00000505350.2 linkuse as main transcriptc.136A>C p.Thr46Pro missense_variant, NMD_transcript_variant 1/163 ENSP00000481752

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000745
AC:
1
AN:
134162
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
73038
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000445
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000493
AC:
6
AN:
1217700
Hom.:
0
Cov.:
31
AF XY:
0.00000504
AC XY:
3
AN XY:
594864
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000781
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000567
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Familial adenomatous polyposis 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 13, 2020This variant has not been reported in the literature in individuals with APC-related disease. ClinVar contains an entry for this variant (Variation ID:Ā¬ā€ 537610). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies and prediction algorithms are not available for this variant, and the functional significance of this non-coding change is currently unknown. While this variant is present in population databases (rs766151900), the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant occurs in a non-coding region of the APC gene. It does not change the encoded amino acid sequence of the APC protein. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Benign
-0.090
CADD
Benign
14
DANN
Benign
0.59
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.038
N
LIST_S2
Benign
0.24
T
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-0.46
T
MutationTaster
Benign
1.0
N
PROVEAN
Benign
-2.0
N
REVEL
Benign
0.24
Sift
Benign
0.034
D
Sift4G
Uncertain
0.0070
D
MutPred
0.22
Loss of phosphorylation at T46 (P = 0.0217);
MVP
0.65
ClinPred
0.094
T
GERP RS
-1.1

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs766151900; hg19: chr5-112043550; API