chr4-155697064-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001130682.3(GUCY1A1):​c.197G>A​(p.Arg66Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000205 in 1,613,016 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R66W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

GUCY1A1
NM_001130682.3 missense

Scores

6
7
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.77
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GUCY1A1NM_001130682.3 linkuse as main transcriptc.197G>A p.Arg66Gln missense_variant 3/10 ENST00000506455.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GUCY1A1ENST00000506455.6 linkuse as main transcriptc.197G>A p.Arg66Gln missense_variant 3/101 NM_001130682.3 P1Q02108-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152172
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
251166
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135730
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000199
AC:
29
AN:
1460844
Hom.:
0
Cov.:
30
AF XY:
0.0000193
AC XY:
14
AN XY:
726808
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152172
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 30, 2023The c.197G>A (p.R66Q) alteration is located in exon 3 (coding exon 1) of the GUCY1A3 gene. This alteration results from a G to A substitution at nucleotide position 197, causing the arginine (R) at amino acid position 66 to be replaced by a glutamine (Q). 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
0.12
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.21
T;T;T;.;T;T;T
Eigen
Pathogenic
0.88
Eigen_PC
Pathogenic
0.88
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
.;D;.;D;.;.;D
M_CAP
Uncertain
0.11
D
MetaRNN
Uncertain
0.69
D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.82
D
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.68
N;.;N;N;N;N;N
REVEL
Uncertain
0.54
Sift
Uncertain
0.011
D;.;D;D;D;D;D
Sift4G
Benign
0.073
T;D;T;T;T;T;T
Polyphen
1.0
D;.;D;.;D;D;D
Vest4
0.66
MutPred
0.44
Gain of glycosylation at S65 (P = 0.0048);Gain of glycosylation at S65 (P = 0.0048);Gain of glycosylation at S65 (P = 0.0048);Gain of glycosylation at S65 (P = 0.0048);Gain of glycosylation at S65 (P = 0.0048);Gain of glycosylation at S65 (P = 0.0048);Gain of glycosylation at S65 (P = 0.0048);
MVP
0.97
MPC
0.41
ClinPred
0.56
D
GERP RS
5.9
Varity_R
0.17
gMVP
0.58

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: rs773940788; hg19: chr4-156618216; API