Genetic Variant NM_004963.4:c.3151G>A (chr12-14613188-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004963.4(GUCY2C):c.3151G>A(p.Ala1051Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,278 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GUCY2C
NM_004963.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.23

Publications

0 publications found

Variant links:

Genes affected

GUCY2C (HGNC:4688): (guanylate cyclase 2C) This gene encodes a transmembrane protein that functions as a receptor for endogenous peptides guanylin and uroguanylin, and the heat-stable E. coli enterotoxin. The encoded protein activates the cystic fibrosis transmembrane conductance regulator. Mutations in this gene are associated with familial diarrhea (autosomal dominant) and meconium ileus (autosomal recessive). [provided by RefSeq, Nov 2016]

GUCY2C links:

PLBD1-AS1 (HGNC:51143): (PLBD1 antisense RNA 1)

PLBD1-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1940619).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GUCY2C	NM_004963.4 link	c.3151G>A	p.Ala1051Thr	missense_variant	Exon 27 of 27	ENST00000261170.5	NP_004954.2	P25092
GUCY2C	XM_011520631.3 link	c.2905G>A	p.Ala969Thr	missense_variant	Exon 27 of 27		XP_011518933.1
PLBD1-AS1	NR_120465.1 link	n.297+262C>T		intron_variant	Intron 3 of 5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GUCY2C	ENST00000261170.5 link	c.3151G>A	p.Ala1051Thr	missense_variant	Exon 27 of 27	1	NM_004963.4	ENSP00000261170.3		P25092

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461278

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726970

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33436

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111554

Other (OTH)

AF:

0.00

AC:

AN:

60350

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

May 07, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.3151G>A (p.A1051T) alteration is located in exon 27 (coding exon 27) of the GUCY2C gene. This alteration results from a G to A substitution at nucleotide position 3151, causing the alanine (A) at amino acid position 1051 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.0094

BayesDel_noAF

Benign

-0.25

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

Eigen

Benign

0.049

Eigen_PC

Benign

0.13

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.71

M_CAP

Uncertain

0.096

MetaRNN

Benign

0.19

MetaSVM

Uncertain

-0.14

MutationAssessor

Uncertain

2.4

PhyloP100

1.2

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.86

REVEL

Benign

0.27

Sift

Benign

0.035

Sift4G

Uncertain

0.051

Polyphen

0.47

Vest4

0.032

MutPred

0.42

Gain of catalytic residue at K1046 (P = 0.0026);

MVP

0.83

MPC

0.20

ClinPred

0.80

GERP RS

4.9

Varity_R

0.15

gMVP

0.35

Mutation Taster

=79/21

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over