rs876658699

chr1-45331709-G-Achr1-45331709-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1 PM2 BP4_Moderate

The NM_001048174.2(MUTYH):c.1054C>T(p.Pro352Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P352A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: MUTYH NM_001048174.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.93

Genes affected

MUTYH (HGNC:7527): (mutY DNA glycosylase) This gene encodes a DNA glycosylase involved in oxidative DNA damage repair. The enzyme excises adenine bases from the DNA backbone at sites where adenine is inappropriately paired with guanine, cytosine, or 8-oxo-7,8-dihydroguanine, a major oxidatively damaged DNA lesion. The protein is localized to the nucleus and mitochondria. This gene product is thought to play a role in signaling apoptosis by the introduction of single-strand breaks following oxidative damage. Mutations in this gene result in heritable predisposition to colorectal cancer, termed MUTYH-associated polyposis (MAP). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 16 uncertain in NM_001048174.2
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17390811).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MUTYH	NM_001128425.2	c.1138C>T	p.Pro380Ser	missense_variant	12/16	ENST00000710952.2
MUTYH	NM_001048174.2	c.1054C>T	p.Pro352Ser	missense_variant	12/16	ENST00000456914.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MUTYH	ENST00000710952.2	c.1138C>T	p.Pro380Ser	missense_variant	12/16		NM_001128425.2
MUTYH	ENST00000456914.7	c.1054C>T	p.Pro352Ser	missense_variant	12/16	1	NM_001048174.2	A1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.094
BayesDel_addAF	Benign	-0.0050	T
BayesDel_noAF	Benign	-0.24
Cadd	Benign	16
Dann	Benign	0.94
Eigen	Benign	-0.16
Eigen_PC	Benign	-0.054
FATHMM_MKL	Uncertain	0.97	D
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.17	T;T;T;T;T;T;T;T;T;T
MetaSVM	Uncertain	-0.22	T
MutationTaster	Benign	0.53	D;D;D;D;D;D;D;D;D;D;D;D;D;D
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-0.79	N;N;N;N;N;N;N;N;N;.
REVEL	Uncertain	0.34
Sift	Benign	0.58	T;T;T;T;T;T;T;T;T;.
Sift4G	Benign	0.73	T;T;T;T;T;T;T;T;T;T
Polyphen		0.0080, 0.014	.;.;.;.;.;B;B;.;B;.
Vest4		0.11
MutPred		0.41		.;.;.;.;.;.;.;.;Gain of relative solvent accessibility (P = 0.0249);.;
MVP		0.92
MPC		0.11
ClinPred		0.17	T
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.039
gMVP		0.42

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-45797381;