3-46701539-CTC-TTA

Variant names:

• chr3-46701539-CTC-TTA
• NM_147196.3:c.52_54delCTCinsTTA
• TMIE p.19

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP7

The NM_147196.3(TMIE):​c.52_54delCTCinsTTA​(p.19) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L18L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TMIE NM_147196.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.29
• Publications: 0 publications found

Genes affected

TMIE (HGNC:30800): (transmembrane inner ear) This gene encodes a transmembrane inner ear protein. Studies in mouse suggest that this gene is required for normal postnatal maturation of sensory hair cells in the cochlea, including correct development of stereocilia bundles. This gene is one of multiple genes responsible for recessive non-syndromic deafness (DFNB), also known as autosomal recessive nonsyndromic hearing loss (ARNSHL), the most common form of congenitally acquired inherited hearing impairment. [provided by RefSeq, Mar 2009]

TMIE Gene-Disease associations (from GenCC):

• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• autosomal recessive nonsyndromic hearing loss 6

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

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• BP7: Synonymous conserved (PhyloP=1.29 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_147196.3. 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
	TMIE	NM_147196.3	MANE Select	c.52_54delCTCinsTTA	p.19	synonymous	N/A	NP_671729.2	Q8NEW7
	TMIE	NM_001370524.1		c.-66-4251_-66-4249delCTCinsTTA		intron	N/A	NP_001357453.1	A0A2R8YDZ8
	TMIE	NM_001370525.1		c.-66-4251_-66-4249delCTCinsTTA		intron	N/A	NP_001357454.1	A0A2R8YDZ8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMIE	ENST00000643606.3	MANE Select	c.52_54delCTCinsTTA	p.19	synonymous	N/A	ENSP00000494576.2	Q8NEW7
	TMIE	ENST00000644830.1		c.-66-4251_-66-4249delCTCinsTTA		intron	N/A	ENSP00000495111.1	A0A2R8YDZ8

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr3-46743029;