2-152717384-C-A

Variant summary

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

The NM_001365597.4(PRPF40A):c.56G>T(p.Gly19Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PRPF40A NM_001365597.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.77

Genes affected

PRPF40A (HGNC:16463): (pre-mRNA processing factor 40 homolog A) Enables RNA binding activity. Involved in several processes, including cytoskeleton organization; regulation of cell shape; and regulation of cytokinesis. Located in nuclear matrix and nuclear speck. [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=0.27502525).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRPF40A	NM_001365597.4	c.56G>T	p.Gly19Val	missense_variant	1/26	ENST00000545856.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRPF40A	ENST00000545856.8	c.56G>T	p.Gly19Val	missense_variant	1/26	1	NM_001365597.4	P3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

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

Oct 03, 2023

The c.56G>T (p.G19V) alteration is located in exon 1 (coding exon 1) of the PRPF40A gene. This alteration results from a G to T substitution at nucleotide position 56, causing the glycine (G) at amino acid position 19 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
BayesDel_addAF	Uncertain	0.069	T
BayesDel_noAF	Benign	-0.14
Cadd	Pathogenic	28
Dann	Uncertain	1.0
Eigen	Benign	0.12
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.84	T;T;T;T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.28	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-3.0	D;.;N;N
REVEL	Benign	0.20
Sift	Benign	0.24	T;.;D;D
MutPred		0.22		.;Loss of relative solvent accessibility (P = 0.0071);.;.;
MVP		0.68
MPC		1.8
ClinPred		0.93	D
GERP RS		4.8
RBP_binding_hub_radar		1.1
RBP_regulation_power_radar		2.9
gMVP		0.30

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-153573898;