Genetic Variant P3H4:p.Arg340Gly (chr17-41807903-G-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_006455.3(P3H4):c.1018C>G(p.Arg340Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,748 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R340W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

P3H4
NM_006455.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.14

Publications

0 publications found

Variant links:

Genes affected

P3H4 (HGNC:16946): (prolyl 3-hydroxylase family member 4 (inactive)) This nucleolar protein was first characterized because it was an autoantigen in cases on interstitial cystitis. The protein, with a predicted molecular weight of 50 kDa, appears to be localized in the particulate compartment of the interphase nucleolus, with a distribution distinct from that of nucleolar protein B23. During mitosis it is associated with chromosomes. [provided by RefSeq, Jul 2008]

P3H4 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.774

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
P3H4	NM_006455.3 link	c.1018C>G	p.Arg340Gly	missense_variant	Exon 5 of 8	ENST00000393928.6	NP_006446.1	Q92791
P3H4	XM_047435137.1 link	c.1201C>G	p.Arg401Gly	missense_variant	Exon 5 of 8		XP_047291093.1
P3H4	XM_047435138.1 link	c.1201C>G	p.Arg401Gly	missense_variant	Exon 5 of 7		XP_047291094.1
P3H4	XM_006721640.5 link	c.1018C>G	p.Arg340Gly	missense_variant	Exon 5 of 7		XP_006721703.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
P3H4	ENST00000393928.6 link	c.1018C>G	p.Arg340Gly	missense_variant	Exon 5 of 8	1	NM_006455.3	ENSP00000377505.1	Q92791
P3H4	ENST00000355468.7 link	c.1018C>G	p.Arg340Gly	missense_variant	Exon 6 of 9	2		ENSP00000347649.2	Q92791
P3H4	ENST00000592026.1 link	c.532C>G	p.Arg178Gly	missense_variant	Exon 4 of 5	5		ENSP00000468174.1	K7ERA3
P3H4	ENST00000587455.1 link	n.482-1024C>G		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461748

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727186

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111946

Other (OTH)

AF:

0.0000166

AC:

AN:

60384

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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.0066

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;T

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.96

.;D

M_CAP

Benign

0.042

MetaRNN

Pathogenic

0.77

D;D

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

M;M

PhyloP100

3.1

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-3.5

D;D

REVEL

Benign

0.20

Sift

Uncertain

0.021

D;D

Sift4G

Uncertain

0.010

D;D

Polyphen

1.0

D;D

Vest4

0.79

MutPred

0.52

Loss of MoRF binding (P = 0.0268);Loss of MoRF binding (P = 0.0268);

MVP

0.13

MPC

1.0

ClinPred

0.99

GERP RS

3.7

Varity_R

0.33

gMVP

0.64

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over