chr4-155697063-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001130682.3(GUCY1A1):​c.196C>T​(p.Arg66Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,613,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R66Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

GUCY1A1
NM_001130682.3 missense

Scores

6
10
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.19
Variant links:
Genes affected
GUCY1A1 (HGNC:4685): (guanylate cyclase 1 soluble subunit alpha 1) Soluble guanylate cyclases are heterodimeric proteins that catalyze the conversion of GTP to 3',5'-cyclic GMP and pyrophosphate. The protein encoded by this gene is an alpha subunit of this complex and it interacts with a beta subunit to form the guanylate cyclase enzyme, which is activated by nitric oxide. Several transcript variants encoding a few different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.768

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GUCY1A1NM_001130682.3 linkuse as main transcriptc.196C>T p.Arg66Trp missense_variant 3/10 ENST00000506455.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GUCY1A1ENST00000506455.6 linkuse as main transcriptc.196C>T p.Arg66Trp missense_variant 3/101 NM_001130682.3 P1Q02108-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
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:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251164
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135722
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1460800
Hom.:
0
Cov.:
30
AF XY:
0.0000110
AC XY:
8
AN XY:
726796
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:
0.0000812
Gnomad4 FIN exome
AF:
0.0000374
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152296
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000330
AC:
4
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 12, 2023The c.196C>T (p.R66W) alteration is located in exon 3 (coding exon 1) of the GUCY1A3 gene. This alteration results from a C to T substitution at nucleotide position 196, causing the arginine (R) at amino acid position 66 to be replaced by a tryptophan (W). 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
0.20
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.34
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.49
T;T;T;.;T;T;T
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Uncertain
0.97
.;D;.;D;.;.;D
M_CAP
Pathogenic
0.30
D
MetaRNN
Pathogenic
0.77
D;D;D;D;D;D;D
MetaSVM
Uncertain
0.78
D
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-2.6
D;.;D;D;D;D;D
REVEL
Pathogenic
0.67
Sift
Uncertain
0.0010
D;.;D;D;D;D;D
Sift4G
Uncertain
0.0070
D;D;D;D;D;D;D
Polyphen
1.0
D;.;D;.;D;D;D
Vest4
0.72
MVP
0.97
MPC
0.44
ClinPred
0.92
D
GERP RS
1.9
Varity_R
0.26
gMVP
0.69

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

LitVar

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

Other links and lift over

dbSNP: rs143862431; hg19: chr4-156618215; COSMIC: COSV56648831; API