Genetic Variant OSMR:p.Pro694Gln (chr5-38925240-C-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PM5

The NM_003999.3(OSMR):c.2081C>A(p.Pro694Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,794 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P694L) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

OSMR
NM_003999.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.97

Publications

0 publications found

Variant links:

Genes affected

OSMR (HGNC:8507): (oncostatin M receptor) This gene encodes a member of the type I cytokine receptor family. The encoded protein heterodimerizes with interleukin 6 signal transducer to form the type II oncostatin M receptor and with interleukin 31 receptor A to form the interleukin 31 receptor, and thus transduces oncostatin M and interleukin 31 induced signaling events. Mutations in this gene have been associated with familial primary localized cutaneous amyloidosis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]

OSMR Gene-Disease associations (from GenCC):

amyloidosis, primary localized cutaneous, 1
Inheritance: SD, AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
familial primary localized cutaneous amyloidosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

OSMR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a domain Fibronectin type-III 4 (size 111) in uniprot entity OSMR_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_003999.3

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr5-38925240-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 30221.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OSMR	NM_003999.3 link	c.2081C>A	p.Pro694Gln	missense_variant	Exon 15 of 18	ENST00000274276.8	NP_003990.1	Q99650-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OSMR	ENST00000274276.8 link	c.2081C>A	p.Pro694Gln	missense_variant	Exon 15 of 18	1	NM_003999.3	ENSP00000274276.3		Q99650-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461794

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727218

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:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111934

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.029

BayesDel_noAF

Benign

-0.28

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Uncertain

0.50

Eigen

Benign

0.17

Eigen_PC

Benign

0.050

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.60

M_CAP

Benign

0.017

MetaRNN

Uncertain

0.63

MetaSVM

Benign

-0.75

MutationAssessor

Uncertain

2.7

PhyloP100

4.0

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-3.4

REVEL

Benign

0.25

Sift

Benign

0.11

Sift4G

Uncertain

0.012

Polyphen

1.0

Vest4

0.49

MutPred

0.37

Loss of ubiquitination at K690 (P = 0.1388);

MVP

0.75

MPC

0.45

ClinPred

0.90

GERP RS

5.8

Varity_R

0.14

gMVP

0.56

Mutation Taster

=37/63

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over