17-78146928-G-C

Variant names:

• chr17-78146928-G-C
• rs7217374
• NM_001163075.2:c.70+17G>C

Variant summary

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

The NM_001163075.2(C17orf99):​c.70+17G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 32)
• Consequence: C17orf99 NM_001163075.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -4.36

Genes affected

C17orf99 (HGNC:34490): (chromosome 17 open reading frame 99) Predicted to enable transmembrane signaling receptor activity. Predicted to be involved in cell surface receptor signaling pathway; mature B cell differentiation involved in immune response; and positive regulation of immunoglobulin production in mucosal tissue. Located in extracellular space. [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=-0.94).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
C17orf99	NM_001163075.2	c.70+17G>C		intron_variant	Intron 2 of 4	ENST00000340363.10	NP_001156547.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
C17orf99	ENST00000340363.10	c.70+17G>C		intron_variant	Intron 2 of 4	1	NM_001163075.2	ENSP00000343493.4
C17orf99	ENST00000591995.1	c.58+17G>C		intron_variant	Intron 1 of 2	4		ENSP00000466133.1
C17orf99	ENST00000586999.2	n.73+17G>C		intron_variant	Intron 2 of 2	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.0030
DANN	Benign	0.40

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: rs7217374; hg19: chr17-76143009;