chr2-19994286-C-T

Variant names:

• chr2-19994286-C-T
• NM_002381.5:c.1405+13G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_002381.5(MATN3):​c.1405+13G>A variant causes a intron 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. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MATN3 NM_002381.5 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.25
• Publications: 0 publications found

Genes affected

MATN3 (HGNC:6909): (matrilin 3) This gene encodes a member of von Willebrand factor A domain containing protein family. This family of proteins is thought to be involved in the formation of filamentous networks in the extracellular matrices of various tissues. This protein contains two von Willebrand factor A domains; it is present in the cartilage extracellular matrix and has a role in the development and homeostasis of cartilage and bone. Mutations in this gene result in multiple epiphyseal dysplasia. [provided by RefSeq, Jul 2008]

WDR35-DT (HGNC:55818): (WDR35 divergent transcript)

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.63).
• BP6: Variant 2-19994286-C-T is Benign according to our data. Variant chr2-19994286-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 2707688.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002381.5. 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
	MATN3	NM_002381.5	MANE Select	c.1405+13G>A		intron	N/A	NP_002372.1	O15232-1
	WDR35-DT	NR_110235.1		n.291+3792C>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MATN3	ENST00000407540.8	TSL:1 MANE Select	c.1405+13G>A		intron	N/A	ENSP00000383894.3	O15232-1
	MATN3	ENST00000421259.2	TSL:1	c.1279+13G>A		intron	N/A	ENSP00000398753.2	O15232-2
	MATN3	ENST00000856777.1		c.1399+13G>A		intron	N/A	ENSP00000526836.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1434402 Hom.: 0 Cov.: 27 AF XY: 0.00 AC XY: 0 AN XY: 714502

African (AFR) AF: 0.00 AC: 0 AN: 32928

American (AMR) AF: 0.00 AC: 0 AN: 44032

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25752

East Asian (EAS) AF: 0.00 AC: 0 AN: 39478

South Asian (SAS) AF: 0.00 AC: 0 AN: 84584

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53192

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5718

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1089224

Other (OTH) AF: 0.00 AC: 0 AN: 59494

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	20
DANN	Benign	0.72
PhyloP100		1.2

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.15		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

hg19: chr2-20194047;