14-45112432-A-G

Position:

• chr14-45112432-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_017922.4(PRPF39):​c.1687A>G​(p.Ile563Val) 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. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: PRPF39 NM_017922.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.32

Genes affected

PRPF39 (HGNC:20314): (pre-mRNA processing factor 39) Predicted to be involved in mRNA 5'-splice site recognition. Predicted to be part of U1 snRNP; U2-type prespliceosome; and commitment complex. [provided by Alliance of Genome Resources, Apr 2022]

PRPF39 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08997491).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PRPF39	NM_017922.4	c.1687A>G	p.Ile563Val	missense_variant	11/14	ENST00000355765.11	NP_060392.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PRPF39	ENST00000355765.11	c.1687A>G	p.Ile563Val	missense_variant	11/14	1	NM_017922.4	ENSP00000348010.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1391188 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 689760

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: 0.00

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 14, 2024

The c.1687A>G (p.I563V) alteration is located in exon 11 (coding exon 10) of the PRPF39 gene. This alteration results from a A to G substitution at nucleotide position 1687, causing the isoleucine (I) at amino acid position 563 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	Benign	0.056
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	18
DANN	Benign	0.86
DEOGEN2	Benign	0.0044	T
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.11
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.77	T
M_CAP	Benign	0.0066	T
MetaRNN	Benign	0.090	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.6	L
PrimateAI	Benign	0.32	T
PROVEAN	Benign	0.20	N
REVEL	Benign	0.040
Sift	Benign	0.41	T
Sift4G	Benign	0.29	T
Polyphen		0.0010	B
Vest4		0.14
MutPred		0.38		Gain of catalytic residue at K564 (P = 0);
MVP		0.47
MPC		0.38
ClinPred		0.50	T
GERP RS		3.3
Varity_R		0.025
gMVP		0.054

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-45581635;