5-110625311-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001039763.4(TMEM232):c.724C>T(p.Pro242Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000718 in 1,393,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: TMEM232 NM_001039763.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.138

Genes affected

TMEM232 (HGNC:37270): (transmembrane protein 232) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04720941).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMEM232	NM_001039763.4	c.724C>T	p.Pro242Ser	missense_variant	7/14	ENST00000455884.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMEM232	ENST00000455884.7	c.724C>T	p.Pro242Ser	missense_variant	7/14	2	NM_001039763.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.18e-7 AC: 1 AN: 1393192 Hom.: 0 Cov.: 30 AF XY: 0.00000146 AC XY: 1 AN XY: 687012

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: 9.30e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 18, 2023

The c.724C>T (p.P242S) alteration is located in exon 7 (coding exon 6) of the TMEM232 gene. This alteration results from a C to T substitution at nucleotide position 724, causing the proline (P) at amino acid position 242 to be replaced by a serine (S). 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	0.11
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
Cadd	Benign	3.8
Dann	Benign	0.54
DEOGEN2	Benign	0.022	T;.
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.052	N
LIST_S2	Benign	0.60	T;T
M_CAP	Benign	0.0046	T
MetaRNN	Benign	0.047	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	L;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.23	T
PROVEAN	Uncertain	-2.5	N;N
REVEL	Benign	0.029
Sift	Benign	0.65	T;T
Sift4G	Benign	0.21	T;.
Polyphen		0.0090	B;.
Vest4		0.052
MutPred		0.25		Gain of phosphorylation at P242 (P = 0.0209);Gain of phosphorylation at P242 (P = 0.0209);
MVP		0.014
ClinPred		0.077	T
GERP RS		-2.4
Varity_R		0.046
gMVP		0.10

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs1784279905; hg19: chr5-109961012;