rs121434272

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP5

The NM_001126128.2(PROK2):​c.217C>T​(p.Arg73Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000514 in 1,613,836 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R73H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

PROK2
NM_001126128.2 missense

Scores

5
11
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:6U:2

Conservation

PhyloP100: 6.30

Publications

18 publications found
Variant links:
Genes affected
PROK2 (HGNC:18455): (prokineticin 2) This gene encodes a protein expressed in the suprachiasmatic nucleus (SCN) circadian clock that may function as the output component of the circadian clock. The secreted form of the encoded protein may also serve as a chemoattractant for neuronal precursor cells in the olfactory bulb. Proteins from other vertebrates which are similar to this gene product were isolated based on homology to snake venom and secretions from frog skin, and have been shown to have diverse functions. Mutations in this gene are associated with Kallmann syndrome 4. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PROK2 Gene-Disease associations (from GenCC):
  • hypogonadotropic hypogonadism 4 with or without anosmia
    Inheritance: SD, AD, AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
  • hypogonadotropic hypogonadism
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Kallmann syndrome
    Inheritance: AD 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 1 ACMG points.

PP5
Variant 3-71781472-G-A is Pathogenic according to our data. Variant chr3-71781472-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 3604.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001126128.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PROK2
NM_001126128.2
MANE Select
c.217C>Tp.Arg73Cys
missense
Exon 2 of 4NP_001119600.1Q9HC23-1
PROK2
NM_021935.4
c.217C>Tp.Arg73Cys
missense
Exon 2 of 3NP_068754.1Q9HC23-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PROK2
ENST00000295619.4
TSL:1 MANE Select
c.217C>Tp.Arg73Cys
missense
Exon 2 of 4ENSP00000295619.3Q9HC23-1
PROK2
ENST00000353065.7
TSL:1
c.217C>Tp.Arg73Cys
missense
Exon 2 of 3ENSP00000295618.3Q9HC23-2

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152074
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.000284
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000716
AC:
18
AN:
251420
AF XY:
0.0000883
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000506
AC:
74
AN:
1461762
Hom.:
0
Cov.:
30
AF XY:
0.0000674
AC XY:
49
AN XY:
727192
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.000522
AC:
45
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000198
AC:
22
AN:
1111916
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000592
AC:
9
AN:
152074
Hom.:
0
Cov.:
32
AF XY:
0.0000808
AC XY:
6
AN XY:
74286
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41408
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4824
European-Finnish (FIN)
AF:
0.000284
AC:
3
AN:
10574
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.519
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:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000659
AC:
8
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
4
-
-
Hypogonadotropic hypogonadism 4 with or without anosmia (4)
1
1
-
not provided (2)
-
1
-
Hypogonadotropic hypogonadism (1)
1
-
-
PROK2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Pathogenic
0.23
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.79
D
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D
M_CAP
Uncertain
0.097
D
MetaRNN
Uncertain
0.52
D
MetaSVM
Uncertain
0.49
D
MutationAssessor
Benign
1.9
L
PhyloP100
6.3
PrimateAI
Benign
0.35
T
PROVEAN
Uncertain
-3.8
D
REVEL
Pathogenic
0.70
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.54
MVP
0.99
MPC
0.58
ClinPred
0.49
T
GERP RS
5.7
Varity_R
0.20
gMVP
0.69
Mutation Taster
=6/94
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs121434272; hg19: chr3-71830623; COSMIC: COSV55208227; API