2-108469069-G-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_001410194.1(GCC2):​c.3G>T​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,166 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

GCC2
NM_001410194.1 start_lost

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.673
Variant links:
Genes affected
GCC2 (HGNC:23218): (GRIP and coiled-coil domain containing 2) The protein encoded by this gene is a peripheral membrane protein localized to the trans-Golgi network. It is sensitive to brefeldin A. This encoded protein contains a GRIP domain which is thought to be used in targeting. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2009]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GCC2NM_181453.4 linkuse as main transcriptc.306G>T p.Met102Ile missense_variant 5/23 ENST00000309863.11 NP_852118.2 Q8IWJ2-1B3KR21

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GCC2ENST00000309863.11 linkuse as main transcriptc.306G>T p.Met102Ile missense_variant 5/235 NM_181453.4 ENSP00000307939.5 Q8IWJ2-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
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
GnomAD4 exome
Cov.:
27
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
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
Bravo
AF:
0.0000151

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 GeneticsApr 13, 2023The c.306G>T (p.M102I) alteration is located in exon 5 (coding exon 5) of the GCC2 gene. This alteration results from a G to T substitution at nucleotide position 306, causing the methionine (M) at amino acid position 102 to be replaced by an isoleucine (I). 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
Benign
-0.20
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
17
DANN
Benign
0.95
DEOGEN2
Benign
0.030
T;T;T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.21
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.75
T;T;T
M_CAP
Benign
0.0049
T
MetaRNN
Benign
0.057
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
L;.;.
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.43
N;N;N
REVEL
Benign
0.037
Sift
Benign
0.39
T;T;T
Sift4G
Benign
0.84
T;T;T
Polyphen
0.0
B;.;.
Vest4
0.15
MutPred
0.29
Gain of methylation at K103 (P = 0.0248);.;.;
MVP
0.37
MPC
0.060
ClinPred
0.26
T
GERP RS
3.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.046
gMVP
0.14

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

LitVar

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

Other links and lift over

dbSNP: rs1681050393; hg19: chr2-109085525; API