Genetic Variant NM_006690.4:c.362C>A (chr20-35246955-C-A) – 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_006690.4(MMP24):c.362C>A(p.Pro121Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,710 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. P121L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

MMP24
NM_006690.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.14

Publications

0 publications found

Variant links:

Genes affected

MMP24 (HGNC:7172): (matrix metallopeptidase 24) This gene encodes a member of the peptidase M10 family of matrix metalloproteinases (MMPs). Proteins in this family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. The encoded preproprotein is proteolytically processed to generate the mature protease. Unlike most MMPs, which are secreted, this protease is a member of the membrane-type MMP (MT-MMP) subfamily, contains a transmembrane domain and is expressed at the cell surface. Substrates of this protease include the proteins cadherin 2 and matrix metallopeptidase 2 (also known as 72 kDa type IV collagenase). The gene has previously been referred to as MMP25 but has been renamed matrix metallopeptidase 24 (MMP24). [provided by RefSeq, Oct 2019]

MMP24 links:

MMP24-AS1-EDEM2 (HGNC:):

MMP24-AS1-EDEM2 links:

MMP24OS (HGNC:44421): (MMP24 opposite strand)

MMP24OS 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_006690.4. 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
	MMP24	NM_006690.4	MANE Select	c.362C>A	p.Pro121Gln	missense	Exon 2 of 9	NP_006681.1	Q9Y5R2
	MMP24-AS1-EDEM2	NM_001355008.2		c.-462-10764G>T		intron	N/A	NP_001341937.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MMP24	ENST00000246186.8	TSL:1 MANE Select	c.362C>A	p.Pro121Gln	missense	Exon 2 of 9	ENSP00000246186.6	Q9Y5R2
MMP24	ENST00000927316.1		c.362C>A	p.Pro121Gln	missense	Exon 2 of 8	ENSP00000597375.1
MMP24	ENST00000927315.1		c.362C>A	p.Pro121Gln	missense	Exon 2 of 8	ENSP00000597374.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461710

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727138

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000450

AC:

AN:

1111870

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.455

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

Benign

0.12

BayesDel_addAF

Uncertain

0.013

BayesDel_noAF

Benign

-0.22

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.11

Eigen

Benign

0.13

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.86

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.46

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

PhyloP100

3.1

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-1.2

REVEL

Benign

0.11

Sift

Benign

0.32

Sift4G

Benign

0.62

Polyphen

0.28

Vest4

0.62

MutPred

0.48

Gain of catalytic residue at P121 (P = 0.1285)

MVP

0.71

MPC

1.4

ClinPred

0.92

GERP RS

5.5

Varity_R

0.16

gMVP

0.71

Mutation Taster

=20/80

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