8-127395871-C-T

Position:

• chr8-127395871-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NR_117100.1(CASC8):​n.1176+24958G>A variant causes a intron, non coding transcript change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.366 in 152,028 control chromosomes in the GnomAD database, including 12,973 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 0.37 (12973 hom., cov: 32)
• Consequence: CASC8 NR_117100.1 intron, non_coding_transcript
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.08

Genes affected

CASC8 (HGNC:45129): (cancer susceptibility 8)

POU5F1B (HGNC:9223): (POU class 5 homeobox 1B) This intronless gene was thought to be a transcribed pseudogene of POU class 5 homeobox 1, however, it has been reported that this gene can encode a functional protein. The encoded protein is nearly the same length as and highly similar to the POU class 5 homeobox 1 transcription factor, has been shown to be a weak transcriptional activator and may play a role in carcinogenesis and eye development. [provided by RefSeq, Apr 2009]

PCAT1 (HGNC:43022): (prostate cancer associated transcript 1) This gene produces a long non-coding RNA that promotes cell proliferation and is upregulated in prostate, colorectal, and other cancers. This RNA negatively regulates the BRCA2 tumor suppressor protein and positively regulates Myc oncoprotein. It contains binding sites for microRNAs, and may act as a sponge for microRNAs that regulate cell growth pathways. [provided by RefSeq, Dec 2017]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.662 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CASC8	NR_117100.1	n.1176+24958G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CASC8	ENST00000502082.5	n.1176+24958G>A		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.366 AC: 55626 AN: 151910 Hom.: 12938 Cov.: 32

Gnomad AFR AF: 0.668

Gnomad AMI AF: 0.366

Gnomad AMR AF: 0.211

Gnomad ASJ AF: 0.306

Gnomad EAS AF: 0.211

Gnomad SAS AF: 0.166

Gnomad FIN AF: 0.317

Gnomad MID AF: 0.323

Gnomad NFE AF: 0.255

Gnomad OTH AF: 0.330

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

GnomAD4 genome AF: 0.366 AC: 55706 AN: 152028 Hom.: 12973 Cov.: 32 AF XY: 0.361 AC XY: 26849 AN XY: 74310

Gnomad4 AFR AF: 0.669

Gnomad4 AMR AF: 0.210

Gnomad4 ASJ AF: 0.306

Gnomad4 EAS AF: 0.211

Gnomad4 SAS AF: 0.165

Gnomad4 FIN AF: 0.317

Gnomad4 NFE AF: 0.255

Gnomad4 OTH AF: 0.327

Alfa AF: 0.269 Hom.: 9199

Bravo AF: 0.374

Asia WGS AF: 0.208 AC: 726 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	1.1
DANN	Benign	0.50

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs10505476; hg19: chr8-128408116;