chr17-32940889-G-C

Position:

• chr17-32940889-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP5

The NM_015544.3(TMEM98):​c.577G>C​(p.Ala193Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TMEM98 NM_015544.3 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.36

Genes affected

TMEM98 (HGNC:24529): (transmembrane protein 98) This gene encodes a transmembrane protein. A missense mutation in this gene result in Nanophthalmos 4 (NNO4). Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Sep 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 17-32940889-G-C is Pathogenic according to our data. Variant chr17-32940889-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 155721.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM98	NM_015544.3	c.577G>C	p.Ala193Pro	missense_variant	8/8	ENST00000579849.6	NP_056359.2
TMEM98	NM_001033504.2	c.577G>C	p.Ala193Pro	missense_variant	7/7		NP_001028676.1
TMEM98	NM_001301746.2	c.577G>C	p.Ala193Pro	missense_variant	9/9		NP_001288675.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMEM98	ENST00000579849.6	c.577G>C	p.Ala193Pro	missense_variant	8/8	1	NM_015544.3	ENSP00000463245	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461886 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727248

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Nanophthalmos 4 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Aug 01, 2014

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Pathogenic	0.14
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.10	T;T;T;T
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	.;D;D;D
M_CAP	Benign	0.021	T
MetaRNN	Uncertain	0.59	D;D;D;D
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	0.90	L;L;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.76	T
PROVEAN	Benign	-2.2	N;.;.;N
REVEL	Pathogenic	0.73
Sift	Benign	0.042	D;.;.;D
Sift4G	Benign	0.16	T;T;T;T
Polyphen		0.99	D;D;.;.
Vest4		0.88
MutPred		0.40		Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);.;Loss of helix (P = 0.0104);
MVP		0.67
MPC		1.1
ClinPred		0.92	D
GERP RS		5.8
Varity_R		0.68
gMVP		0.89

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

Publications

LitVar

Other links and lift over

dbSNP: rs587777690; hg19: chr17-31267907;