19-33081201-C-T

Position:

• chr19-33081201-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_018025.3(GPATCH1):​c.8C>T​(p.Ala3Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000107 in 1,398,906 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: not found (cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: GPATCH1 NM_018025.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.70

Genes affected

GPATCH1 (HGNC:24658): (G-patch domain containing 1) Predicted to enable RNA binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Part of catalytic step 2 spliceosome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2918797).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GPATCH1	NM_018025.3	c.8C>T	p.Ala3Val	missense_variant	1/20	ENST00000170564.7	NP_060495.2
GPATCH1	XM_006723255.5	c.8C>T	p.Ala3Val	missense_variant	1/14		XP_006723318.1
GPATCH1	NR_135270.2	n.21C>T		non_coding_transcript_exon_variant	1/21

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GPATCH1	ENST00000170564.7	c.8C>T	p.Ala3Val	missense_variant	1/20	1	NM_018025.3	ENSP00000170564.1
GPATCH1	ENST00000592165.1	n.8C>T		non_coding_transcript_exon_variant	1/10	5		ENSP00000467632.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000107 AC: 15 AN: 1398906 Hom.: 0 Cov.: 31 AF XY: 0.00000870 AC XY: 6 AN XY: 689980

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000139

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 27, 2024

The c.8C>T (p.A3V) alteration is located in exon 1 (coding exon 1) of the GPATCH1 gene. This alteration results from a C to T substitution at nucleotide position 8, causing the alanine (A) at amino acid position 3 to be replaced by a valine (V). 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	Pathogenic	0.60
BayesDel_addAF	Benign	-0.043	T
BayesDel_noAF	Benign	-0.30
CADD	Pathogenic	27
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.013	T
Eigen	Uncertain	0.42
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M
PrimateAI	Benign	0.48	T
PROVEAN	Benign	-0.93	N
REVEL	Benign	0.096
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.39
MutPred		0.19		Gain of sheet (P = 0.0507);
MVP		0.36
MPC		0.23
ClinPred		0.99	D
GERP RS		4.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.40
gMVP		0.41

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: chr19-33572107;