1-46673388-C-T

Variant names:

• chr1-46673388-C-T
• rs1373135133
• NM_001145474.4:c.553C>T

Variant summary

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

The NM_001145474.4(TEX38):​c.553C>T​(p.His185Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TEX38 NM_001145474.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.391
• Publications: 0 publications found

Genes affected

TEX38 (HGNC:29589): (testis expressed 38) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ATPAF1 (HGNC:18803): (ATP synthase mitochondrial F1 complex assembly factor 1) This gene encodes an assembly factor for the F(1) component of the mitochondrial ATP synthase. This protein binds specifically to the F1 beta subunit and is thought to prevent this subunit from forming nonproductive homooligomers during enzyme assembly. Alternatively spliced transcript variants have been identified. [provided by RefSeq, Aug 2011]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0678626).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TEX38	NM_001145474.4	c.553C>T	p.His185Tyr	missense_variant	Exon 2 of 2	ENST00000334122.5	NP_001138946.1
TEX38	NM_001300863.2	c.391C>T	p.His131Tyr	missense_variant	Exon 2 of 2		NP_001287792.1
TEX38	NM_001300864.2	c.325C>T	p.His109Tyr	missense_variant	Exon 2 of 2		NP_001287793.1
TEX38	XM_011541421.4	c.556C>T	p.His186Tyr	missense_variant	Exon 2 of 2		XP_011539723.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TEX38	ENST00000334122.5	c.553C>T	p.His185Tyr	missense_variant	Exon 2 of 2	1	NM_001145474.4	ENSP00000455854.1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152190 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

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: 0.00000634 AC: 1 AN: 157702 AF XY: 0.00

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1399652 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 690314

African (AFR) AF: 0.00 AC: 0 AN: 31598

American (AMR) AF: 0.00 AC: 0 AN: 35704

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25182

East Asian (EAS) AF: 0.00 AC: 0 AN: 35740

South Asian (SAS) AF: 0.00 AC: 0 AN: 79236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49388

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5698

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1079024

Other (OTH) AF: 0.00 AC: 0 AN: 58082

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152190 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74358

African (AFR) AF: 0.0000724 AC: 3 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jul 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.553C>T (p.H185Y) alteration is located in exon 2 (coding exon 2) of the TEX38 gene. This alteration results from a C to T substitution at nucleotide position 553, causing the histidine (H) at amino acid position 185 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	0.87
DANN	Benign	0.52
DEOGEN2	Benign	0.032	T;T;T
FATHMM_MKL	Benign	0.073	N
LIST_S2	Benign	0.43	T;T;T
M_CAP	Benign	0.059	D
MetaRNN	Benign	0.068	T;T;T
MutationAssessor	Benign	1.2	L;.;.
PhyloP100		-0.39
PrimateAI	Benign	0.27	T
PROVEAN	Uncertain	-3.5	D;D;D
Sift	Benign	0.47	T;T;T
Sift4G	Benign	0.41	T;T;T
Polyphen		0.0090	B;.;.
Vest4		0.068
MVP		0.65
GERP RS		-0.52
Varity_R		0.11
gMVP		0.23
Mutation Taster		=94/6	polymorphism

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: rs1373135133; hg19: chr1-47139060;