4-950422-A-T

Variant names:

• chr4-950422-A-T
• ENST00000622959:c.-191A>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001297423.2(TMEM175):​c.-53A>T variant causes a 5 prime UTR premature start codon gain change. The variant allele was found at a frequency of 0.000000685 in 1,459,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TMEM175 NM_001297423.2 5_prime_UTR_premature_start_codon_gain
• Scores: Splicing: ADA: 0.000009458
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.96

Genes affected

TMEM175 (HGNC:28709): (transmembrane protein 175) Enables potassium ion leak channel activity. Involved in potassium ion transmembrane transport. Located in endosome and lysosome. Is integral component of endosome membrane and integral component of lysosomal membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_addAF=-0.21335).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM175	NM_032326.4	c.194A>T	p.Gln65Leu	missense_variant, splice_region_variant	Exon 4 of 11	ENST00000264771.9	NP_115702.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM175	ENST00000264771.9	c.194A>T	p.Gln65Leu	missense_variant, splice_region_variant	Exon 4 of 11	1	NM_032326.4	ENSP00000264771.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459882 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726434

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.01e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	21
DANN	Benign	0.48
Eigen	Benign	-0.79
Eigen_PC	Benign	-0.76
FATHMM_MKL	Uncertain	0.97	D
M_CAP	Benign	0.0097	T
ClinPred		0.62	D
GERP RS		0.56
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0000095
dbscSNV1_RF	Benign	0.0020
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-944210;