NM_001038603.3:c.1147-9T>C

Variant names:

• chr5-69424592-T-C
• rs299099
• NM_001038603.3:c.1147-9T>C

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_Strong BP6_Moderate BS1

The NM_001038603.3(MARVELD2):​c.1147-9T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000519 in 1,599,378 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.00013 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000044 (0 hom.)
• Consequence: MARVELD2 NM_001038603.3 intron
• Scores: Splicing: ADA: 0.0003877
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.160
• Publications: 18 publications found

Genes affected

MARVELD2 (HGNC:26401): (MARVEL domain containing 2) The protein encoded by this gene is a membrane protein found at the tight junctions between epithelial cells. The encoded protein helps establish epithelial barriers such as those in the organ of Corti, where these barriers are required for normal hearing. Defects in this gene are a cause of deafness autosomal recessive type 49 (DFNB49). Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

MARVELD2 Gene-Disease associations (from GenCC):

• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• autosomal recessive nonsyndromic hearing loss 49

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 5-69424592-T-C is Benign according to our data. Variant chr5-69424592-T-C is described in ClinVar as Benign. ClinVar VariationId is 2420742.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000131 (20/152176) while in subpopulation EAS AF = 0.00386 (20/5176). AF 95% confidence interval is 0.00256. There are 0 homozygotes in GnomAd4. There are 11 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MARVELD2	NM_001038603.3	c.1147-9T>C		intron_variant	Intron 2 of 6	ENST00000325631.10	NP_001033692.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MARVELD2	ENST00000325631.10	c.1147-9T>C		intron_variant	Intron 2 of 6	1	NM_001038603.3	ENSP00000323264.5

Frequencies

GnomAD3 genomes AF: 0.000132 AC: 20 AN: 152058 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00386

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000208 AC: 52 AN: 250384 AF XY: 0.000192

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00272

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000327

GnomAD4 exome AF: 0.0000435 AC: 63 AN: 1447202 Hom.: 0 Cov.: 30 AF XY: 0.0000416 AC XY: 30 AN XY: 720814

African (AFR) AF: 0.00 AC: 0 AN: 33398

American (AMR) AF: 0.00 AC: 0 AN: 44644

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26070

East Asian (EAS) AF: 0.00139 AC: 55 AN: 39610

South Asian (SAS) AF: 0.00 AC: 0 AN: 86044

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53290

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5736

European-Non Finnish (NFE) AF: 0.00000182 AC: 2 AN: 1098444

Other (OTH) AF: 0.000100 AC: 6 AN: 59966

GnomAD4 genome AF: 0.000131 AC: 20 AN: 152176 Hom.: 0 Cov.: 33 AF XY: 0.000148 AC XY: 11 AN XY: 74384

African (AFR) AF: 0.00 AC: 0 AN: 41552

American (AMR) AF: 0.00 AC: 0 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00386 AC: 20 AN: 5176

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10576

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67984

Other (OTH) AF: 0.00 AC: 0 AN: 2110

Alfa AF: 0.00 Hom.: 41333

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Dec 23, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	9.4
DANN	Benign	0.64
PhyloP100		0.16
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00039
dbscSNV1_RF	Benign	0.10
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: rs299099; hg19: chr5-68720419;