7-138798119-C-G

Variant names:

• chr7-138798119-C-G
• rs746508351
• NM_001085429.2:c.15C>G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001085429.2(TMEM213):​c.15C>G​(p.Pro5Pro) variant causes a synonymous 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P5P) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 30)
• Consequence: TMEM213 NM_001085429.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.999
• Publications: 1 publications found

Genes affected

TMEM213 (HGNC:27220): (transmembrane protein 213) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ATP6V0A4 (HGNC:866): (ATPase H+ transporting V0 subunit a4) This gene encodes a component of vacuolar ATPase (V-ATPase), a multisubunit enzyme that mediates acidification of intracellular compartments of eukaryotic cells. V-ATPase dependent acidification is necessary for such intracellular processes as protein sorting, zymogen activation, receptor-mediated endocytosis, and synaptic vesicle proton gradient generation. V-ATPase is composed of a cytosolic V1 domain and a transmembrane V0 domain. The V1 domain consists of three A and three B subunits, two G subunits plus the C, D, E, F, and H subunits. The V1 domain contains the ATP catalytic site. The V0 domain consists of five different subunits: a, c, c', c'', and d. This gene is one of four genes in man and mouse that encode different isoforms of the a subunit. Alternatively spliced transcript variants encoding the same protein have been described. Mutations in this gene are associated with renal tubular acidosis associated with preserved hearing. [provided by RefSeq, Jul 2008]

ATP6V0A4 Gene-Disease associations (from GenCC):

• renal tubular acidosis, distal, 3, with or without sensorineural hearing loss

  Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• autosomal recessive distal renal tubular acidosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.69).
• BP7: Synonymous conserved (PhyloP=0.999 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001085429.2. 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
	TMEM213	NM_001085429.2	MANE Select	c.15C>G	p.Pro5Pro	synonymous	Exon 1 of 3	NP_001078898.1	A2RRL7-1
	ATP6V0A4	NM_020632.3	MANE Select	c.-206G>C		5_prime_UTR	Exon 1 of 22	NP_065683.2	Q9HBG4
	ATP6V0A4	NM_130840.3		c.-103G>C		5_prime_UTR	Exon 1 of 21	NP_570855.2	Q9HBG4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMEM213	ENST00000442682.7	TSL:1 MANE Select	c.15C>G	p.Pro5Pro	synonymous	Exon 1 of 3	ENSP00000390407.2	A2RRL7-1
	TMEM213	ENST00000397602.7	TSL:1	c.15C>G	p.Pro5Pro	synonymous	Exon 1 of 3	ENSP00000380727.3	A2RRL7-3
	ATP6V0A4	ENST00000310018.7	TSL:1 MANE Select	c.-206G>C		5_prime_UTR	Exon 1 of 22	ENSP00000308122.2	Q9HBG4

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 30

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.69
CADD	Benign	7.4
DANN	Benign	0.60
PhyloP100		1.0
PromoterAI		0.0052	Neutral

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: rs746508351; hg19: chr7-138482864;