rs4656345

Positions:

• chr1-162021447-G-A
• chr1-162021447-G-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_015441.3(OLFML2B):​c.175-1265C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0261 in 152,274 control chromosomes in the GnomAD database, including 87 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 0.026 (87 hom., cov: 33)
• Consequence: OLFML2B NM_015441.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.126

Genes affected

OLFML2B (HGNC:24558): (olfactomedin like 2B) This gene encodes an olfactomedin domain-containing protein. Most olfactomedin domain-containing proteins are secreted glycoproteins. [provided by RefSeq, Dec 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0261 (3981/152274) while in subpopulation NFE AF= 0.039 (2653/68016). AF 95% confidence interval is 0.0378. There are 87 homozygotes in gnomad4. There are 1960 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 87 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OLFML2B	NM_015441.3	c.175-1265C>T		intron_variant		ENST00000294794.8
OLFML2B	NM_001297713.2	c.175-1265C>T		intron_variant
OLFML2B	NM_001347700.2	c.175-1265C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OLFML2B	ENST00000294794.8	c.175-1265C>T		intron_variant		1	NM_015441.3	P3
OLFML2B	ENST00000367940.2	c.175-1265C>T		intron_variant		2		A2

Frequencies

GnomAD3 genomes AF: 0.0262 AC: 3980 AN: 152156 Hom.: 87 Cov.: 33

Gnomad AFR AF: 0.00794

Gnomad AMI AF: 0.00548

Gnomad AMR AF: 0.0296

Gnomad ASJ AF: 0.00806

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00394

Gnomad FIN AF: 0.0419

Gnomad MID AF: 0.00318

Gnomad NFE AF: 0.0390

Gnomad OTH AF: 0.0220

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

GnomAD4 genome AF: 0.0261 AC: 3981 AN: 152274 Hom.: 87 Cov.: 33 AF XY: 0.0263 AC XY: 1960 AN XY: 74482

Gnomad4 AFR AF: 0.00792

Gnomad4 AMR AF: 0.0297

Gnomad4 ASJ AF: 0.00806

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00394

Gnomad4 FIN AF: 0.0419

Gnomad4 NFE AF: 0.0390

Gnomad4 OTH AF: 0.0218

Alfa AF: 0.0338 Hom.: 20

Bravo AF: 0.0246

Asia WGS AF: 0.00462 AC: 17 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	1.9
DANN	Benign	0.32

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

LitVar

Other links and lift over

dbSNP: rs4656345; hg19: chr1-161991237;