Genetic Variant NM_014889.4:c.2612G>C (chr10-3143422-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_014889.4(PITRM1):c.2612G>C(p.Arg871Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,864 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R871Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PITRM1
NM_014889.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.46

Publications

0 publications found

Variant links:

Genes affected

PITRM1 (HGNC:17663): (pitrilysin metallopeptidase 1) The protein encoded by this gene is an ATP-dependent metalloprotease that degrades post-cleavage mitochondrial transit peptides. The encoded protein binds zinc and can also degrade amyloid beta A4 protein, suggesting a possible role in Alzheimer's disease. [provided by RefSeq, Dec 2016]

PITRM1 links:

PITRM1-AS1 (HGNC:44675): (PITRM1 antisense RNA 1)

PITRM1-AS1 links:

ENSG00000278419 (HGNC:):

ENSG00000278419 links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014889.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PITRM1	NM_014889.4	MANE Select	c.2612G>C	p.Arg871Pro	missense	Exon 23 of 27	NP_055704.2
PITRM1	NM_001242307.2		c.2615G>C	p.Arg872Pro	missense	Exon 23 of 27	NP_001229236.1	Q5JRX3-2
PITRM1	NM_001347729.1		c.2588G>C	p.Arg863Pro	missense	Exon 23 of 27	NP_001334658.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PITRM1	ENST00000224949.9	TSL:1 MANE Select	c.2612G>C	p.Arg871Pro	missense	Exon 23 of 27	ENSP00000224949.4	Q5JRX3-1
PITRM1	ENST00000380989.6	TSL:1	c.2615G>C	p.Arg872Pro	missense	Exon 23 of 27	ENSP00000370377.2	Q5JRX3-2
PITRM1	ENST00000464395.1	TSL:1	n.2435G>C		non_coding_transcript_exon	Exon 5 of 9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460864

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726794

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33462

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111118

Other (OTH)

AF:

0.00

AC:

AN:

60334

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.52

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Benign

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.026

Eigen

Benign

-0.35

Eigen_PC

Benign

-0.25

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.012

MetaRNN

Uncertain

0.53

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

PhyloP100

7.5

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.6

REVEL

Uncertain

0.37

Sift

Benign

0.18

Sift4G

Benign

0.23

Polyphen

0.029

Vest4

0.95

MutPred

0.57

Gain of glycosylation at T872 (P = 0.0201)

MVP

0.40

MPC

0.099

ClinPred

0.69

GERP RS

5.0

Varity_R

0.82

gMVP

0.89

Mutation Taster

=19/81

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over