Genetic Variant PLOD2:p.Gly622Asp (chr3-146071407-C-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_182943.3(PLOD2):c.1865G>A(p.Gly622Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,459,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. G622C) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PLOD2
NM_182943.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.91

Variant links:

Genes affected

PLOD2 (HGNC:9082): (procollagen-lysine,2-oxoglutarate 5-dioxygenase 2) The protein encoded by this gene is a membrane-bound homodimeric enzyme that is localized to the cisternae of the rough endoplasmic reticulum. The enzyme (cofactors iron and ascorbate) catalyzes the hydroxylation of lysyl residues in collagen-like peptides. The resultant hydroxylysyl groups are attachment sites for carbohydrates in collagen and thus are critical for the stability of intermolecular crosslinks. Some patients with Ehlers-Danlos syndrome type VIB have deficiencies in lysyl hydroxylase activity. Mutations in the coding region of this gene are associated with Bruck syndrome. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

PLOD2 links:

ENSG00000243415 (HGNC:):

ENSG00000243415 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr3-146071408-C-A is described in Lovd as [Pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.846

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLOD2	NM_182943.3 link	c.1865G>A	p.Gly622Asp	missense_variant	Exon 18 of 20	ENST00000282903.10	NP_891988.1	O00469-2
PLOD2	NM_000935.3 link	c.1802G>A	p.Gly601Asp	missense_variant	Exon 17 of 19		NP_000926.2	O00469-1
PLOD2	XM_017006625.3 link	c.1589G>A	p.Gly530Asp	missense_variant	Exon 19 of 21		XP_016862114.1
PLOD2	XM_047448319.1 link	c.1589G>A	p.Gly530Asp	missense_variant	Exon 18 of 20		XP_047304275.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLOD2	ENST00000282903.10 link	c.1865G>A	p.Gly622Asp	missense_variant	Exon 18 of 20	1	NM_182943.3	ENSP00000282903.5		O00469-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1459830

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726284

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.77

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.39

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

.;.;T;T

Eigen

Pathogenic

0.87

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

D;D;D;D

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.85

D;D;D;D

MetaSVM

Uncertain

0.69

MutationAssessor

Uncertain

2.8

.;.;M;.

PrimateAI

Pathogenic

0.82

PROVEAN

Pathogenic

-6.7

D;D;D;D

REVEL

Pathogenic

0.93

Sift

Uncertain

0.0050

D;D;D;D

Sift4G

Uncertain

0.0090

D;D;D;D

Polyphen

1.0

.;D;D;D

Vest4

0.84

MutPred

0.60

.;.;Gain of relative solvent accessibility (P = 0.0082);.;

MVP

0.93

MPC

0.46

ClinPred

0.99

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.85

gMVP

0.91

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over