4-55396229-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_018475.5(TMEM165):c.40C>T(p.Pro14Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000475 in 1,472,242 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P14L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000038 ( 0 hom. )

Consequence

TMEM165
NM_018475.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.0600

Publications

0 publications found

Variant links:

Genes affected

TMEM165 (HGNC:30760): (transmembrane protein 165) This gene encodes a predicted transmembrane protein with a perinuclear Golgi-like distribution in fibroblasts. Mutations in this gene are associated with the autosomal recessive disorder congenital disorder of glycosylation, type IIk. Knockdown of this gene's expression causes decreased sialylation in HEK cells and suggests this gene plays a role in terminal Golgi glycosylation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2012]

TMEM165 links:

SRD5A3-AS1 (HGNC:44138): (SRD5A3 antisense RNA 1)

SRD5A3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 2 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 1.3658 (below the threshold of 3.09). Trascript score misZ: 0.68834 (below the threshold of 3.09). GenCC associations: The gene is linked to TMEM165-congenital disorder of glycosylation.

BP4

Computational evidence support a benign effect (MetaRNN=0.1202167).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM165	NM_018475.5 link	c.40C>T	p.Pro14Ser	missense_variant	Exon 1 of 6	ENST00000381334.10	NP_060945.2	Q9HC07-1
TMEM165	XM_011534394.4 link	c.40C>T	p.Pro14Ser	missense_variant	Exon 1 of 6		XP_011532696.1
TMEM165	NR_073070.2 link	n.273C>T		non_coding_transcript_exon_variant	Exon 1 of 7
TMEM165	XM_017008412.2 link	c.-406C>T		5_prime_UTR_variant	Exon 1 of 8		XP_016863901.1	Q9HC07-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM165	ENST00000381334.10 link	c.40C>T	p.Pro14Ser	missense_variant	Exon 1 of 6	1	NM_018475.5	ENSP00000370736.5		Q9HC07-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000119

AC:

AN:

84308

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000646

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

AF:

0.00000379

AC:

AN:

1320202

Hom.:

Cov.:

AF XY:

0.00000307

AC XY:

AN XY:

651264

show subpopulations

African (AFR)

AF:

0.0000371

AC:

AN:

26966

American (AMR)

AF:

0.0000379

AC:

AN:

26354

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23352

East Asian (EAS)

AF:

0.00

AC:

AN:

28350

South Asian (SAS)

AF:

0.00

AC:

AN:

71648

European-Finnish (FIN)

AF:

0.00

AC:

AN:

34534

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5368

European-Non Finnish (NFE)

AF:

0.00000286

AC:

AN:

1048806

Other (OTH)

AF:

0.00

AC:

AN:

54824

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152040

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74272

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41442

American (AMR)

AF:

0.00

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10574

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67968

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 08, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.40C>T (p.P14S) alteration is located in exon 1 (coding exon 1) of the TMEM165 gene. This alteration results from a C to T substitution at nucleotide position 40, causing the proline (P) at amino acid position 14 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

TMEM165-congenital disorder of glycosylation

Uncertain:1

Sep 10, 2018

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.040

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Benign

0.87

DEOGEN2

Benign

0.021

.;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.050

LIST_S2

Benign

0.49

T;T

M_CAP

Pathogenic

0.76

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

0.69

.;N

PhyloP100

0.060

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-0.45

N;N

REVEL

Benign

0.15

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.023

D;T

Polyphen

0.0020

.;B

Vest4

0.11

MutPred

0.29

Gain of catalytic residue at P14 (P = 0.0179);Gain of catalytic residue at P14 (P = 0.0179);

MVP

0.17

MPC

0.63

ClinPred

0.053

GERP RS

0.30

PromoterAI

-0.013

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.026

gMVP

0.34

Mutation Taster

=86/14

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

4-55396229-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over