rs1020175450

Variant names:

• chr10-49131949-G-A
• NM_001164484.2:c.516C>T

Your query was ambiguous. Multiple possible variants found:

• chr10-49131949-G-A
• chr10-49131949-G-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001164484.2(FAM170B):​c.516C>T​(p.Asn172Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,398,768 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: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: FAM170B NM_001164484.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.174

Genes affected

FAM170B (HGNC:19736): (family with sequence similarity 170 member B) Predicted to be involved in fertilization; positive regulation of acrosome reaction; and regulation of fertilization. Located in acrosomal vesicle. [provided by Alliance of Genome Resources, Apr 2022]

FAM170B-AS1 (HGNC:45006): (FAM170B antisense RNA 1)

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BP7: Synonymous conserved (PhyloP=-0.174 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM170B	NM_001164484.2	c.516C>T	p.Asn172Asn	synonymous_variant	Exon 2 of 2	ENST00000311787.6	NP_001157956.1
FAM170B-AS1	NR_038973.1	n.439-3707G>A		intron_variant	Intron 1 of 5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM170B	ENST00000311787.6	c.516C>T	p.Asn172Asn	synonymous_variant	Exon 2 of 2	1	NM_001164484.2	ENSP00000308292.6
FAM170B-AS1	ENST00000435809.1	n.192-3928G>A		intron_variant	Intron 1 of 2	3
FAM170B-AS1	ENST00000442525.5	n.439-3707G>A		intron_variant	Intron 1 of 5	2
FAM170B-AS1	ENST00000443389.5	n.434-9304G>A		intron_variant	Intron 1 of 5	5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000143 AC: 2 AN: 1398768 Hom.: 0 Cov.: 39 AF XY: 0.00000290 AC XY: 2 AN XY: 689946

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: 0.0000252

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	1.2
DANN	Benign	0.54

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-50339994;