17-41807972-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_006455.3(P3H4):c.949G>A(p.Ala317Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

P3H4
NM_006455.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.10

Publications

2 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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.4014625).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
P3H4	NM_006455.3 link	c.949G>A	p.Ala317Thr	missense_variant	Exon 5 of 8	ENST00000393928.6	NP_006446.1	Q92791
P3H4	XM_047435137.1 link	c.1132G>A	p.Ala378Thr	missense_variant	Exon 5 of 8		XP_047291093.1
P3H4	XM_047435138.1 link	c.1132G>A	p.Ala378Thr	missense_variant	Exon 5 of 7		XP_047291094.1
P3H4	XM_006721640.5 link	c.949G>A	p.Ala317Thr	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.949G>A	p.Ala317Thr	missense_variant	Exon 5 of 8	1	NM_006455.3	ENSP00000377505.1	Q92791
P3H4	ENST00000355468.7 link	c.949G>A	p.Ala317Thr	missense_variant	Exon 6 of 9	2		ENSP00000347649.2	Q92791
P3H4	ENST00000592026.1 link	c.463G>A	p.Ala155Thr	missense_variant	Exon 4 of 5	5		ENSP00000468174.1	K7ERA3
P3H4	ENST00000587455.1 link	n.482-1093G>A		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000797

AC:

AN:

250812

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461614

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727104

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39666

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111874

Other (OTH)

AF:

0.00

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 17, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.949G>A (p.A317T) alteration is located in exon 5 (coding exon 5) of the P3H4 gene. This alteration results from a G to A substitution at nucleotide position 949, causing the alanine (A) at amino acid position 317 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.096

T;T

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.41

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.87

.;D

M_CAP

Benign

0.043

MetaRNN

Benign

0.40

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Uncertain

2.3

M;M

PhyloP100

2.1

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.14

Sift

Benign

0.26

T;T

Sift4G

Benign

0.20

T;T

Polyphen

0.86

P;P

Vest4

0.62

MutPred

0.29

Gain of phosphorylation at A317 (P = 0.0598);Gain of phosphorylation at A317 (P = 0.0598);

MVP

0.072

MPC

0.86

ClinPred

0.68

GERP RS

3.2

Varity_R

0.14

gMVP

0.38

Mutation Taster

=87/13

polymorphism

(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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17-41807972-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over