8-127324996-G-T

Position:

• chr8-127324996-G-T

Variant summary

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

The ENST00000645438.1(POU5F1B):​c.-715+2770G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.513 in 150,880 control chromosomes in the GnomAD database, including 20,096 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 0.51 (20096 hom., cov: 30)
• Consequence: POU5F1B ENST00000645438.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0630

Genes affected

CASC8 (HGNC:):

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.51).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.678 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CASC21	NR_117099.1	n.302+2770G>T		intron_variant
CASC8	NR_117100.1	n.1177-34936C>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CASC8	ENST00000501396.5	n.547-1842C>A		intron_variant		1
CASC8	ENST00000502082.5	n.1177-34936C>A		intron_variant		1
CASC8	ENST00000523825.2	n.547-34936C>A		intron_variant		1

Frequencies

GnomAD3 genomes AF: 0.513 AC: 77298 AN: 150764 Hom.: 20068 Cov.: 30

Gnomad AFR AF: 0.474

Gnomad AMI AF: 0.709

Gnomad AMR AF: 0.504

Gnomad ASJ AF: 0.493

Gnomad EAS AF: 0.698

Gnomad SAS AF: 0.675

Gnomad FIN AF: 0.582

Gnomad MID AF: 0.522

Gnomad NFE AF: 0.500

Gnomad OTH AF: 0.515

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

GnomAD4 genome AF: 0.513 AC: 77382 AN: 150880 Hom.: 20096 Cov.: 30 AF XY: 0.523 AC XY: 38536 AN XY: 73666

Gnomad4 AFR AF: 0.475

Gnomad4 AMR AF: 0.504

Gnomad4 ASJ AF: 0.493

Gnomad4 EAS AF: 0.697

Gnomad4 SAS AF: 0.674

Gnomad4 FIN AF: 0.582

Gnomad4 NFE AF: 0.500

Gnomad4 OTH AF: 0.518

Alfa AF: 0.508 Hom.: 8969

Bravo AF: 0.499

Asia WGS AF: 0.695 AC: 2411 AN: 3468

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.51
CADD	Benign	9.2
DANN	Benign	0.96

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs377649; hg19: chr8-128337241;