chr12-56752201-C-T

Variant summary

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

The NM_000946.3(PRIM1):​c.98G>A​(p.Gly33Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000277 in 1,441,820 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

PRIM1
NM_000946.3 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.95
Variant links:
Genes affected
PRIM1 (HGNC:9369): (DNA primase subunit 1) The replication of DNA in eukaryotic cells is carried out by a complex chromosomal replication apparatus, in which DNA polymerase alpha and primase are two key enzymatic components. Primase, which is a heterodimer of a small subunit and a large subunit, synthesizes small RNA primers for the Okazaki fragments made during discontinuous DNA replication. The protein encoded by this gene is the small, 49 kDa primase subunit. [provided by RefSeq, Jul 2008]
HSD17B6 (HGNC:23316): (hydroxysteroid 17-beta dehydrogenase 6) The protein encoded by this gene has both oxidoreductase and epimerase activities and is involved in androgen catabolism. The oxidoreductase activity can convert 3 alpha-adiol to dihydrotestosterone, while the epimerase activity can convert androsterone to epi-androsterone. Both reactions use NAD+ as the preferred cofactor. This gene is a member of the retinol dehydrogenase family. [provided by RefSeq, Aug 2013]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRIM1NM_000946.3 linkuse as main transcriptc.98G>A p.Gly33Asp missense_variant 1/13 ENST00000338193.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRIM1ENST00000338193.11 linkuse as main transcriptc.98G>A p.Gly33Asp missense_variant 1/131 NM_000946.3 P1

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD4 exome
AF:
0.00000277
AC:
4
AN:
1441820
Hom.:
0
Cov.:
29
AF XY:
0.00000279
AC XY:
2
AN XY:
715988
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000103
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 15, 2023The c.98G>A (p.G33D) alteration is located in exon 1 (coding exon 1) of the PRIM1 gene. This alteration results from a G to A substitution at nucleotide position 98, causing the glycine (G) at amino acid position 33 to be replaced by an aspartic acid (D). 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
Pathogenic
0.95
BayesDel_addAF
Uncertain
0.044
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.071
T;.
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
D;T
M_CAP
Benign
0.065
D
MetaRNN
Uncertain
0.61
D;D
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
1.6
L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.76
T
PROVEAN
Pathogenic
-5.5
D;D
REVEL
Benign
0.20
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0070
D;.
Polyphen
0.22
B;.
Vest4
0.70
MutPred
0.50
Gain of catalytic residue at V35 (P = 0.0097);Gain of catalytic residue at V35 (P = 0.0097);
MVP
0.50
MPC
1.1
ClinPred
0.99
D
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.95
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1592338276; hg19: chr12-57145985; API