rs1565397250

Variant names:

• chr11-102609038-G-A
• rs1565397250
• NM_004771.4:c.710C>T

Your query was ambiguous. Multiple possible variants found:

• chr11-102609038-G-A
• chr11-102609038-G-T

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2 PM5 PP3_Strong

The NM_004771.4(MMP20):​c.710C>T​(p.Ser237Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. S237Y) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MMP20 NM_004771.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 10.0
• Publications: 0 publications found

Genes affected

MMP20 (HGNC:7167): (matrix metallopeptidase 20) Proteins of the matrix metalloproteinase (MMP) 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. Most MMP's are secreted as inactive proproteins which are activated when cleaved by extracellular proteinases. The protein encoded by this gene degrades amelogenin, the major protein component of dental enamel matrix, and thus thought to play a role in tooth enamel formation. A mutation in this gene, which alters the normal splice pattern and results in premature termination of the encoded protein, has been associated with amelogenesis imperfecta. This gene is part of a cluster of MMP genes located on chromosome 11q22.3. [provided by RefSeq, Aug 2011]

MMP20-AS1 (HGNC:56362): (MMP20 antisense RNA 1)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-102609038-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 917991.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.973

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004771.4. 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
	MMP20	NM_004771.4	MANE Select	c.710C>T	p.Ser237Phe	missense	Exon 5 of 10	NP_004762.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MMP20	ENST00000260228.3	TSL:1 MANE Select	c.710C>T	p.Ser237Phe	missense	Exon 5 of 10	ENSP00000260228.2	O60882
	MMP20-AS1	ENST00000542119.2	TSL:3	n.233+1586G>A		intron	N/A
	MMP20-AS1	ENST00000782665.1		n.233+1586G>A		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.32
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.37	T
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Uncertain	0.093	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Uncertain	0.37	D
MutationAssessor	Pathogenic	3.7	H
PhyloP100		10
PrimateAI	Uncertain	0.68	T
PROVEAN	Pathogenic	-5.8	D
REVEL	Pathogenic	0.76
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.95
MutPred		0.83		Loss of disorder (P = 0.0015)
MVP		0.90
MPC		0.27
ClinPred		1.0	D
GERP RS		5.4
Varity_R		0.99
gMVP		0.90
Mutation Taster		=36/64	disease causing

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: rs1565397250; hg19: chr11-102479769;