NM_000285.4:c.1442G>A

Variant names:

• chr19-33387384-C-T
• rs144944440
• NM_000285.4:c.1442G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000285.4(PEPD):​c.1442G>A​(p.Gly481Asp) variant causes a missense 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. 17/21 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. G481V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: PEPD NM_000285.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.27
• Publications: 2 publications found

Genes affected

PEPD (HGNC:8840): (peptidase D) This gene encodes a member of the peptidase family. The protein forms a homodimer that hydrolyzes dipeptides or tripeptides with C-terminal proline or hydroxyproline residues. The enzyme serves an important role in the recycling of proline, and may be rate limiting for the production of collagen. Mutations in this gene result in prolidase deficiency, which is characterized by the excretion of large amount of di- and tri-peptides containing proline. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2009]

PEPD Gene-Disease associations (from GenCC):

• prolidase deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen, Labcorp Genetics (formerly Invitae), G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13644046).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000285.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PEPD	NM_000285.4	MANE Select	c.1442G>A	p.Gly481Asp	missense	Exon 15 of 15	NP_000276.2	A0A140VJR2
	PEPD	NM_001166056.2		c.1319G>A	p.Gly440Asp	missense	Exon 13 of 13	NP_001159528.1	P12955-2
	PEPD	NM_001166057.2		c.1250G>A	p.Gly417Asp	missense	Exon 13 of 13	NP_001159529.1	P12955-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PEPD	ENST00000244137.12	TSL:1 MANE Select	c.1442G>A	p.Gly481Asp	missense	Exon 15 of 15	ENSP00000244137.5	P12955-1
	PEPD	ENST00000651901.2		c.1532G>A	p.Gly511Asp	missense	Exon 16 of 16	ENSP00000498922.2	A0A494C165
	PEPD	ENST00000588328.7	TSL:3	c.1508G>A	p.Gly503Asp	missense	Exon 16 of 16	ENSP00000468516.4	K7ES25

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.080	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	18
DANN	Benign	0.94
DEOGEN2	Benign	0.22	T
Eigen	Benign	-0.47
Eigen_PC	Benign	-0.37
FATHMM_MKL	Benign	0.65	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.052	D
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-0.47	T
MutationAssessor	Benign	0.38	N
PhyloP100		3.3
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-1.0	N
REVEL	Benign	0.28
Sift	Benign	0.038	D
Sift4G	Uncertain	0.038	D
Polyphen		0.0	B
Vest4		0.13
MutPred		0.52		Loss of helix (P = 0.0376)
MVP		0.82
MPC		0.15
ClinPred		0.29	T
GERP RS		3.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.14
Mutation Taster		=62/38	polymorphism

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: rs144944440; hg19: chr19-33878290;