rs778706873

Variant names:

• chr1-52414787-C-A
• NM_032864.4:c.775C>A

Your query was ambiguous. Multiple possible variants found:

• chr1-52414787-C-A
• chr1-52414787-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4 BP7

The NM_032864.4(PRPF38A):​c.775C>A​(p.Arg259Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 6.8e-7 (0 hom.)
• Consequence: PRPF38A NM_032864.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.85

Genes affected

PRPF38A (HGNC:25930): (pre-mRNA processing factor 38A) Enables RNA binding activity. Involved in mRNA splicing, via spliceosome. Located in nucleoplasm. Part of U2-type precatalytic spliceosome. [provided by Alliance of Genome Resources, Apr 2022]

TUT4 (HGNC:28981): (terminal uridylyl transferase 4) Enables RNA uridylyltransferase activity. Involved in RNA metabolic process; negative regulation of transposition, RNA-mediated; and stem cell population maintenance. Located in cytoplasmic ribonucleoprotein granule; cytosol; and nucleolus. Implicated in liver benign neoplasm. Biomarker of breast cancer. [provided by Alliance of Genome Resources, Apr 2022]

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 (BayesDel_noAF=-0.17).
• BP7: Synonymous conserved (PhyloP=2.85 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRPF38A	NM_032864.4	c.775C>A	p.Arg259Arg	synonymous_variant	Exon 8 of 10	ENST00000257181.10	NP_116253.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRPF38A	ENST00000257181.10	c.775C>A	p.Arg259Arg	synonymous_variant	Exon 8 of 10	1	NM_032864.4	ENSP00000257181.8
PRPF38A	ENST00000474048.1	n.563C>A		non_coding_transcript_exon_variant	Exon 6 of 8	1
TUT4	ENST00000528457.5	c.374-6327G>T		intron_variant	Intron 2 of 2	3		ENSP00000432475.1
TUT4	ENST00000527941.5	n.*68-5181G>T		intron_variant	Intron 3 of 4	5		ENSP00000436810.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461888 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727244

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.17
CADD	Benign	13
DANN	Benign	0.90
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: chr1-52880459;