Genetic Variant NM_016134.4:c.108A>G (chr8-96785005-A-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016134.4(CPQ):c.108A>G(p.Ile36Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,518 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I36V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CPQ
NM_016134.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.262

Publications

0 publications found

Variant links:

Genes affected

CPQ (HGNC:16910): (carboxypeptidase Q) This gene encodes a metallopeptidase that belongs to the peptidase M28 family. The encoded protein may catalyze the cleavage of dipeptides with unsubstituted terminals into amino acids. [provided by RefSeq, Jul 2013]

CPQ links:

LOC124901985 (HGNC:):

LOC124901985 links:

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ACMG classification

Classification was made for transcript

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=0.16619197).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016134.4. 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
	CPQ	NM_016134.4	MANE Select	c.108A>G	p.Ile36Met	missense	Exon 2 of 8	NP_057218.1	Q9Y646

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CPQ	ENST00000220763.10	TSL:1 MANE Select	c.108A>G	p.Ile36Met	missense	Exon 2 of 8	ENSP00000220763.5	Q9Y646
CPQ	ENST00000960277.1		c.108A>G	p.Ile36Met	missense	Exon 2 of 9	ENSP00000630336.1
CPQ	ENST00000863818.1		c.108A>G	p.Ile36Met	missense	Exon 2 of 9	ENSP00000533877.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461518

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727074

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:

33458

American (AMR)

AF:

0.00

AC:

AN:

44684

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39656

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111790

Other (OTH)

AF:

0.0000166

AC:

AN:

60376

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

2.7

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0063

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.40

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.62

M_CAP

Benign

0.010

MetaRNN

Benign

0.17

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.6

PhyloP100

-0.26

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.69

REVEL

Benign

0.14

Sift

Uncertain

0.011

Sift4G

Uncertain

0.024

Polyphen

0.98

Vest4

0.21

MutPred

0.23

Loss of methylation at K37 (P = 0.0499)

MVP

0.38

MPC

0.13

ClinPred

0.79

GERP RS

-2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.096

gMVP

0.77

Mutation Taster

=75/25

polymorphism

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over