20-33099326-C-G

Position:

• chr20-33099326-C-G

Variant summary

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

The NM_182519.3(BPIFB4):​c.1570-1100C>G 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: 31)
• Consequence: BPIFB4 NM_182519.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.118

Genes affected

BPIFB4 (HGNC:16179): (BPI fold containing family B member 4) Predicted to enable lipid binding activity. Predicted to be located in cytoplasm and extracellular region. [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/exons	MANE	Protein	UniProt
BPIFB4	NM_182519.3	c.1570-1100C>G		intron_variant		ENST00000375483.4	NP_872325.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BPIFB4	ENST00000375483.4	c.1570-1100C>G		intron_variant		5	NM_182519.3	ENSP00000364632.3
BPIFB4	ENST00000674031.1	c.1936-1100C>G		intron_variant				ENSP00000501266.1

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.91
DANN	Benign	0.070

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: rs2057262; hg19: chr20-31687132;