12-56743038-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000946.3(PRIM1):ā€‹c.697A>Gā€‹(p.Ile233Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PRIM1
NM_000946.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.96
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3141684).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRIM1NM_000946.3 linkc.697A>G p.Ile233Val missense_variant Exon 7 of 13 ENST00000338193.11 NP_000937.1 P49642

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRIM1ENST00000338193.11 linkc.697A>G p.Ile233Val missense_variant Exon 7 of 13 1 NM_000946.3 ENSP00000350491.5 P49642

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1389888
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
685898
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Apr 11, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; Variants in candidate genes are classified as variants of uncertain significance in accordance with ACMG guidelines (PMID: 25741868) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.099
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0026
T;T;.
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.0054
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.74
T;T;T
M_CAP
Benign
0.0090
T
MetaRNN
Benign
0.31
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.4
M;.;.
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-0.65
N;N;N
REVEL
Benign
0.10
Sift
Uncertain
0.018
D;D;D
Sift4G
Benign
0.066
T;D;.
Polyphen
0.10
B;.;.
Vest4
0.35
MutPred
0.55
Gain of catalytic residue at V229 (P = 0.0051);.;.;
MVP
0.36
MPC
0.38
ClinPred
0.92
D
GERP RS
3.5
Varity_R
0.22
gMVP
0.13

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: rs1483598165; hg19: chr12-57136822; API