Genetic Variant TMEM245:p.Ser607Cys (chr9-109057225-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_032012.4(TMEM245):c.1820C>G(p.Ser607Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,722 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TMEM245
NM_032012.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.77

Variant links:

Genes affected

TMEM245 (HGNC:1363): (transmembrane protein 245) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM245 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM245	NM_032012.4 link	c.1820C>G	p.Ser607Cys	missense_variant	Exon 12 of 18	ENST00000374586.8	NP_114401.2	Q9H330-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TMEM245	ENST00000374586.8 link	c.1820C>G	p.Ser607Cys	missense_variant	Exon 12 of 18	1	NM_032012.4	ENSP00000363714.3	Q9H330-2
TMEM245	ENST00000413712.7 link	c.1796C>G	p.Ser599Cys	missense_variant	Exon 11 of 17	2		ENSP00000394798.3	H7C0G1
TMEM245	ENST00000491854.1 link	n.*392C>G		non_coding_transcript_exon_variant	Exon 10 of 16	2		ENSP00000417842.1	F8WBJ7
TMEM245	ENST00000491854.1 link	n.*392C>G		3_prime_UTR_variant	Exon 10 of 16	2		ENSP00000417842.1	F8WBJ7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461722

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727154

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.0000224

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111898

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 29, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1820C>G (p.S607C) alteration is located in exon 12 (coding exon 12) of the TMEM245 gene. This alteration results from a C to G substitution at nucleotide position 1820, causing the serine (S) at amino acid position 607 to be replaced by a cysteine (C). 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

0.22

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.42

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.037

MetaRNN

Uncertain

0.74

MetaSVM

Benign

-0.71

MutationAssessor

Benign

1.8

PhyloP100

9.8

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-3.2

REVEL

Uncertain

0.37

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.030

Polyphen

1.0

Vest4

0.84

MutPred

0.38

Loss of helix (P = 0.0138);

MVP

0.50

MPC

0.60

ClinPred

0.98

GERP RS

5.5

Varity_R

0.40

gMVP

0.63

Mutation Taster

=80/20

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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9-109057225-G-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over