3-71781472-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM5PP3_Moderate

The NM_001126128.2(PROK2):c.217C>G(p.Arg73Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,762 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R73C) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

PROK2
NM_001126128.2 missense

Scores

Clinical Significance

Not reported in ClinVar

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: AR, SD, AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen
hypogonadotropic hypogonadism
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Kallmann syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PROK2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr3-71781472-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 3604.

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PROK2	NM_001126128.2 link	c.217C>G	p.Arg73Gly	missense_variant	Exon 2 of 4	ENST00000295619.4	NP_001119600.1	Q9HC23-1
PROK2	NM_021935.4 link	c.217C>G	p.Arg73Gly	missense_variant	Exon 2 of 3		NP_068754.1	Q9HC23-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PROK2	ENST00000295619.4 link	c.217C>G	p.Arg73Gly	missense_variant	Exon 2 of 4	1	NM_001126128.2	ENSP00000295619.3		Q9HC23-1
PROK2	ENST00000353065.7 link	c.217C>G	p.Arg73Gly	missense_variant	Exon 2 of 3	1		ENSP00000295618.3		Q9HC23-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000795

AC:

AN:

251420

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461762

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727192

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

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:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111916

Other (OTH)

AF:

0.0000166

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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.:

Bravo

AF:

0.00000378

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Uncertain

0.059

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

.;D

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.90

D;T

M_CAP

Benign

0.078

MetaRNN

Uncertain

0.58

D;D

MetaSVM

Uncertain

0.44

MutationAssessor

Benign

1.6

L;L

PhyloP100

6.3

PrimateAI

Benign

0.31

PROVEAN

Uncertain

-2.6

D;N

REVEL

Uncertain

0.56

Sift

Benign

0.034

D;D

Sift4G

Uncertain

0.014

D;D

Polyphen

0.99

.;D

Vest4

0.49

MutPred

0.60

Loss of MoRF binding (P = 0.0339);Loss of MoRF binding (P = 0.0339);

MVP

0.98

MPC

0.50

ClinPred

0.95

GERP RS

5.7

Varity_R

0.27

gMVP

0.65

Mutation Taster

=46/54

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.92

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.92

Position offset: 0

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

Computational scores

Splicing

Publications

Other links and lift over