12-14506965-G-T

Variant names:

• chr12-14506965-G-T
• rs143522122
• NM_024829.6:c.1340C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_024829.6(PLBD1):​c.1340C>A​(p.Thr447Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,780 control chromosomes in the GnomAD database, with no homozygous occurrence. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T447M) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PLBD1 NM_024829.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.78
• Publications: 0 publications found

Genes affected

PLBD1 (HGNC:26215): (phospholipase B domain containing 1) Predicted to enable phospholipase activity. Predicted to be involved in phospholipid catabolic process. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLBD1	NM_024829.6	c.1340C>A	p.Thr447Lys	missense_variant	Exon 9 of 11	ENST00000240617.10	NP_079105.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLBD1	ENST00000240617.10	c.1340C>A	p.Thr447Lys	missense_variant	Exon 9 of 11	1	NM_024829.6	ENSP00000240617.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461780 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727180

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111934

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.086
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	17
DANN	Benign	0.95
DEOGEN2	Benign	0.0036	T
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.50
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.39	T
M_CAP	Benign	0.018	T
MetaRNN	Uncertain	0.45	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.97	L
PhyloP100		5.8
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.95	N
REVEL	Benign	0.16
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.0050	D
Polyphen		0.20	B
Vest4		0.38
MutPred		0.76		Gain of MoRF binding (P = 0.0264);
MVP		0.095
MPC		0.44
ClinPred		0.79	D
GERP RS		4.3
Varity_R		0.091
gMVP		0.80
Mutation Taster		=99/1	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs143522122; hg19: chr12-14659899;