rs10743937

Positions:

• chr12-11020856-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001291315.2(PRH1):​c.36+26164G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.499 in 138,574 control chromosomes in the GnomAD database, including 16,441 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.50 (16441 hom., cov: 31)
• Consequence: PRH1 NM_001291315.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.84

Genes affected

ENSG00000275778 (HGNC:):

PRH1 (HGNC:9366): (proline rich protein HaeIII subfamily 1) This gene encodes a member of the heterogeneous family of proline-rich salivary glycoproteins. The encoded preproprotein undergoes proteolytic processing to generate one or more mature isoforms before secretion from the parotid and submandibular/sublingual glands. Multiple distinct alleles of this locus including the parotid isoelectric-focusing variant slow (PIF-s), the parotid acidic protein (Pa), and the double band slow (Db-s) isoforms have been characterized. The reference genome encodes the Db-s allele. Certain alleles of this gene are associated with susceptibility to dental caries. This gene is located in a cluster of closely related salivary proline-rich proteins on chromosome 12. Co-transcription of this gene with adjacent genes has been observed. Alternate splicing of this gene results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2015]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.06).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.567 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PRH1	NM_001291315.2	c.36+26164G>A		intron_variant			NP_001278244.1
PRH1	NM_001291314.2	c.-126+26164G>A		intron_variant			NP_001278243.1
PRH1-TAS2R14	NM_001316893.2	c.140+13926G>A		intron_variant			NP_001303822.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ENSG00000275778	ENST00000703543.1	c.-126+26164G>A		intron_variant				ENSP00000515364.1

Frequencies

GnomAD3 genomes AF: 0.500 AC: 69189 AN: 138466 Hom.: 16442 Cov.: 31

Gnomad AFR AF: 0.378

Gnomad AMI AF: 0.683

Gnomad AMR AF: 0.513

Gnomad ASJ AF: 0.420

Gnomad EAS AF: 0.334

Gnomad SAS AF: 0.366

Gnomad FIN AF: 0.635

Gnomad MID AF: 0.433

Gnomad NFE AF: 0.572

Gnomad OTH AF: 0.479

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.499 AC: 69205 AN: 138574 Hom.: 16441 Cov.: 31 AF XY: 0.501 AC XY: 33769 AN XY: 67454

Gnomad4 AFR AF: 0.378

Gnomad4 AMR AF: 0.513

Gnomad4 ASJ AF: 0.420

Gnomad4 EAS AF: 0.334

Gnomad4 SAS AF: 0.366

Gnomad4 FIN AF: 0.635

Gnomad4 NFE AF: 0.572

Gnomad4 OTH AF: 0.479

Alfa AF: 0.515 Hom.: 2644

Asia WGS AF: 0.295 AC: 1026 AN: 3468

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.1
CADD	Benign	0.32
DANN	Benign	0.17

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: rs10743937; hg19: chr12-11173455; COSMIC: COSV66828319; COSMIC: COSV66828319;