3-189958017-CA-C

Position:

• chr3-189958017-CA-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The NM_018192.4(P3H2):​c.2035-14del variant causes a splice polypyrimidine tract, intron change. The variant allele was found at a frequency of 0.00000837 in 1,433,144 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000084 (0 hom.)
• Consequence: P3H2 NM_018192.4 splice_polypyrimidine_tract, intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 4.77

Genes affected

P3H2 (HGNC:19317): (prolyl 3-hydroxylase 2) This gene encodes a member of the prolyl 3-hydroxylase subfamily of 2-oxo-glutarate-dependent dioxygenases. These enzymes play a critical role in collagen chain assembly, stability and cross-linking by catalyzing post-translational 3-hydroxylation of proline residues. Mutations in this gene are associated with nonsyndromic severe myopia with cataract and vitreoretinal degeneration, and downregulation of this gene may play a role in breast cancer. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 3-189958017-CA-C is Benign according to our data. Variant chr3-189958017-CA-C is described in ClinVar as [Likely_benign]. Clinvar id is 1630677.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
P3H2	NM_018192.4	c.2035-14del		splice_polypyrimidine_tract_variant, intron_variant		ENST00000319332.10	NP_060662.2
P3H2	NM_001134418.2	c.1492-14del		splice_polypyrimidine_tract_variant, intron_variant			NP_001127890.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
P3H2	ENST00000319332.10	c.2035-14del		splice_polypyrimidine_tract_variant, intron_variant		1	NM_018192.4	ENSP00000316881	P1
P3H2	ENST00000427335.6	c.1492-14del		splice_polypyrimidine_tract_variant, intron_variant		1		ENSP00000408947
P3H2	ENST00000490940.1	n.165-14del		splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.00000400 AC: 1 AN: 250050 Hom.: 0 AF XY: 0.00000739 AC XY: 1 AN XY: 135316

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000890

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000837 AC: 12 AN: 1433144 Hom.: 0 Cov.: 26 AF XY: 0.00000699 AC XY: 5 AN XY: 714936

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000111

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 20, 2022

- -

Computational scores

Source: dbNSFP v4.3

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

LitVar

Other links and lift over

dbSNP: rs1560334761; hg19: chr3-189675806;