rs200742772

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM1BP4_Moderate

The NM_032237.5(POMK):​c.704A>G​(p.Asn235Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000101 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

POMK
NM_032237.5 missense

Scores

1
2
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 8.78

Publications

0 publications found
Variant links:
Genes affected
POMK (HGNC:26267): (protein O-mannose kinase) This gene encodes a protein that may be involved in the presentation of the laminin-binding O-linked carbohydrate chain of alpha-dystroglycan (a-DG), which forms transmembrane linkages between the extracellular matrix and the exoskeleton. Some pathogens use this O-linked carbohydrate unit for host entry. Loss of function compound heterozygous mutations in this gene were found in a human patient affected by the Walker-Warburg syndrome (WWS) phenotype. Mice lacking this gene contain misplaced neurons (heterotopia) in some regions of the brain, possibly from defects in neuronal migration. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]
POMK Gene-Disease associations (from GenCC):
  • muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 12
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • congenital muscular dystrophy with cerebellar involvement
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • limb-girdle muscular dystrophy due to POMK deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • muscular dystrophy-dystroglycanopathy, type A
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM1
In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity SG196_HUMAN
BP4
Computational evidence support a benign effect (MetaRNN=0.06955159).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032237.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POMK
NM_032237.5
MANE Select
c.704A>Gp.Asn235Ser
missense
Exon 5 of 5NP_115613.1Q9H5K3
POMK
NM_001277971.2
c.704A>Gp.Asn235Ser
missense
Exon 4 of 4NP_001264900.1Q9H5K3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POMK
ENST00000331373.10
TSL:2 MANE Select
c.704A>Gp.Asn235Ser
missense
Exon 5 of 5ENSP00000331258.5Q9H5K3
POMK
ENST00000676193.1
c.704A>Gp.Asn235Ser
missense
Exon 4 of 4ENSP00000502774.1Q9H5K3
POMK
ENST00000936358.1
c.704A>Gp.Asn235Ser
missense
Exon 5 of 6ENSP00000606417.1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152202
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000865
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000147
AC:
37
AN:
251132
AF XY:
0.000125
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.000894
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000104
AC:
152
AN:
1461856
Hom.:
0
Cov.:
33
AF XY:
0.000105
AC XY:
76
AN XY:
727224
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00119
AC:
31
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.000278
AC:
24
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.000693
AC:
4
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000692
AC:
77
AN:
1111998
Other (OTH)
AF:
0.000166
AC:
10
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
11
21
32
42
53
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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
AF:
0.0000723
AC:
11
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.0000941
AC XY:
7
AN XY:
74350
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.000865
AC:
3
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000204
Hom.:
0
Bravo
AF:
0.0000907
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000157
AC:
19
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
not provided (3)
-
1
-
Inborn genetic diseases (1)
-
1
-
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 12 (1)
-
1
-
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 12;C4015184:Limb-girdle muscular dystrophy due to POMK deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.022
T
Eigen
Benign
0.17
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.0071
T
MetaRNN
Benign
0.070
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L
PhyloP100
8.8
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.12
Sift
Benign
0.056
T
Sift4G
Benign
0.19
T
Polyphen
0.022
B
Vest4
0.21
MVP
0.43
MPC
0.068
ClinPred
0.13
T
GERP RS
5.3
PromoterAI
0.017
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.090
gMVP
0.35
Mutation Taster
=78/22
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs200742772; hg19: chr8-42977671; API