9-130664712-C-A

Position:

• chr9-130664712-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_021619.3(PRDM12):​c.59C>A​(p.Pro20Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P20R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: PRDM12 NM_021619.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.236

Genes affected

PRDM12 (HGNC:13997): (PR/SET domain 12) This gene encodes a transcriptional regulator of sensory neuronal specification that plays a critical role in pain perception. The encoded protein contains an N-terminal PRDI-BF1 and RIZ homology (PR) domain, a SET domain, and three C-terminal C2H2 zinc finger DNA-binding domains. Naturally occurring mutations in this gene are associated with congenital insensitivity to pain (CIP), and hereditary sensory and autonomic neuropathies (HSAN's) affecting peripheral sensory and autonomic neurons. Deregulation of this gene is associated with solid cancers and hematological malignancies including chronic myeloid leukaemia. [provided by RefSeq, Mar 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10715306).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRDM12	NM_021619.3	c.59C>A	p.Pro20Gln	missense_variant	1/5	ENST00000253008.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRDM12	ENST00000253008.3	c.59C>A	p.Pro20Gln	missense_variant	1/5	1	NM_021619.3	P1
PRDM12	ENST00000676323.1	c.59C>A	p.Pro20Gln	missense_variant	1/6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000422 AC: 1 AN: 237100 Hom.: 0 AF XY: 0.00000766 AC XY: 1 AN XY: 130494

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: 0.0000332

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1457558 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 725090

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Congenital insensitivity to pain-hypohidrosis syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 01, 2021

This variant has not been reported in the literature in individuals affected with PRDM12-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant is not present in population databases (ExAC no frequency). This sequence change replaces proline with glutamine at codon 20 of the PRDM12 protein (p.Pro20Gln). The proline residue is weakly conserved and there is a moderate physicochemical difference between proline and glutamine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	20
DANN	Benign	0.93
DEOGEN2	Benign	0.022	T
Eigen	Benign	-0.38
Eigen_PC	Benign	-0.21
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.65	T
M_CAP	Benign	0.041	D
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	0.34	N
MutationTaster	Benign	0.91	D
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-1.8	N
REVEL	Benign	0.044
Sift	Benign	0.19	T
Sift4G	Benign	0.27	T
Polyphen		0.0010	B
Vest4		0.14
MutPred		0.29		Gain of catalytic residue at P20 (P = 0.034);
MVP		0.26
MPC		0.76
ClinPred		0.15	T
GERP RS		3.0
Varity_R		0.12
gMVP		0.49

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: rs1339705107; hg19: chr9-133540099;