4-55411783-G-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PM5PP2PP3_ModeratePP5

The NM_018475.5(TMEM165):c.377G>A(p.Arg126His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R126C) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

TMEM165
NM_018475.5 missense

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.33

Publications

12 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 Gene-Disease associations (from GenCC):

TMEM165-congenital disorder of glycosylation
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics

TMEM165 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr4-55411782-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 35520.

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.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.923

PP5

Variant 4-55411783-G-A is Pathogenic according to our data. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr4-55411783-G-A is described in CliVar as Pathogenic. Clinvar id is 35519.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM165	NM_018475.5 link	c.377G>A	p.Arg126His	missense_variant	Exon 2 of 6	ENST00000381334.10	NP_060945.2	Q9HC07-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM165	ENST00000381334.10 link	c.377G>A	p.Arg126His	missense_variant	Exon 2 of 6	1	NM_018475.5	ENSP00000370736.5		Q9HC07-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112010

Other (OTH)

AF:

0.0000331

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

TMEM165-congenital disorder of glycosylation

Pathogenic:1

Jul 13, 2012

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.33

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.79

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.92

MetaSVM

Uncertain

0.73

MutationAssessor

Pathogenic

3.1

PhyloP100

9.3

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-4.9

REVEL

Pathogenic

0.80

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.79

MutPred

0.71

Loss of methylation at R126 (P = 0.0284);

MVP

0.72

MPC

1.8

ClinPred

1.0

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.81

gMVP

0.85

Mutation Taster

=6/94

disease causing (ClinVar)

(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

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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