20-38096226-C-A

Position:

• chr20-38096226-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000614670.1(RPRD1B):​c.175+29970C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000977 in 143,232 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.000098 (1 hom., cov: 27)
• Consequence: RPRD1B ENST00000614670.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.20

Genes affected

RPRD1B (HGNC:16209): (regulation of nuclear pre-mRNA domain containing 1B) Enables RNA polymerase II complex binding activity and identical protein binding activity. Involved in positive regulation of cell population proliferation; regulation of cell cycle process; and regulation of transcription by RNA polymerase II. Located in nucleoplasm. Part of RNA polymerase II, holoenzyme. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RPRD1B	ENST00000614670.1	c.175+29970C>A		intron_variant		3		ENSP00000484897
RPRD1B	ENST00000618318.1	n.256-28544C>A		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes AF: 0.0000977 AC: 14 AN: 143232 Hom.: 1 Cov.: 27

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000691

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000217

Gnomad SAS AF: 0.000948

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000123

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0000977 AC: 14 AN: 143232 Hom.: 1 Cov.: 27 AF XY: 0.0000862 AC XY: 6 AN XY: 69596

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000691

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000217

Gnomad4 SAS AF: 0.000948

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000123

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.089
DANN	Benign	0.12

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs6127096; hg19: chr20-36724628; COSMIC: COSV65032288;