17-63931394-T-G

Variant names:

• chr17-63931394-T-G
• rs374896622
• NM_000626.4:c.68-9A>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000626.4(CD79B):​c.68-9A>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: 33)
• Consequence: CD79B NM_000626.4 intron
• Scores: Splicing: ADA: 0.00002435
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.100
• Publications: 0 publications found

Genes affected

CD79B (HGNC:1699): (CD79b molecule) The B lymphocyte antigen receptor is a multimeric complex that includes the antigen-specific component, surface immunoglobulin (Ig). Surface Ig non-covalently associates with two other proteins, Ig-alpha and Ig-beta, which are necessary for expression and function of the B-cell antigen receptor. This gene encodes the Ig-beta protein of the B-cell antigen component. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

CD79B Gene-Disease associations (from GenCC):

• agammaglobulinemia 6, autosomal recessive

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
• autosomal agammaglobulinemia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000285947 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CD79B	NM_000626.4	c.68-9A>C		intron_variant	Intron 1 of 5	ENST00000006750.8	NP_000617.1
CD79B	NM_001039933.3	c.68-6A>C		splice_region_variant, intron_variant	Intron 1 of 5		NP_001035022.1
CD79B	NM_001329050.2	c.68-6A>C		splice_region_variant, intron_variant	Intron 1 of 4		NP_001315979.1
CD79B	NM_021602.4	c.68-9A>C		intron_variant	Intron 1 of 4		NP_067613.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CD79B	ENST00000006750.8	c.68-9A>C		intron_variant	Intron 1 of 5	1	NM_000626.4	ENSP00000006750.4
ENSG00000285947	ENST00000647774.1	c.-11A>C		upstream_gene_variant				ENSP00000497443.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	6.2
DANN	Benign	0.56
PhyloP100		-0.10
PromoterAI		0.045	Neutral

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000024
dbscSNV1_RF	Benign	0.0040
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs374896622; hg19: chr17-62008754;