chr20-45909845-G-C

Variant names:

• chr20-45909845-G-C
• rs435306
• NM_006227.4:c.329+97C>G

Variant summary

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

The NM_006227.4(PLTP):​c.329+97C>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: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: PLTP NM_006227.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.768
• Publications: 20 publications found

Genes affected

PLTP (HGNC:9093): (phospholipid transfer protein) The protein encoded by this gene is one of at least two lipid transfer proteins found in human plasma. The encoded protein transfers phospholipids from triglyceride-rich lipoproteins to high density lipoprotein (HDL). In addition to regulating the size of HDL particles, this protein may be involved in cholesterol metabolism. At least two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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=-0.83).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006227.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLTP	NM_006227.4	MANE Select	c.329+97C>G		intron	N/A	NP_006218.1
	PLTP	NM_182676.3		c.329+97C>G		intron	N/A	NP_872617.1
	PLTP	NM_001242921.1		c.65+97C>G		intron	N/A	NP_001229850.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLTP	ENST00000372431.8	TSL:1 MANE Select	c.329+97C>G		intron	N/A	ENSP00000361508.3
	PLTP	ENST00000477313.5	TSL:1	c.329+97C>G		intron	N/A	ENSP00000417138.1
	PLTP	ENST00000354050.8	TSL:1	c.329+97C>G		intron	N/A	ENSP00000335290.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1369140 Hom.: 0 Cov.: 21 AF XY: 0.00 AC XY: 0 AN XY: 686024

African (AFR) AF: 0.00 AC: 0 AN: 31362

American (AMR) AF: 0.00 AC: 0 AN: 43868

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25412

East Asian (EAS) AF: 0.00 AC: 0 AN: 39198

South Asian (SAS) AF: 0.00 AC: 0 AN: 83622

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51674

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5410

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1031214

Other (OTH) AF: 0.00 AC: 0 AN: 57380

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	0.23
DANN	Benign	0.087
PhyloP100		-0.77

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

Other links and lift over

dbSNP: rs435306; hg19: chr20-44538484;