Genetic Variant PRIM1:p.Arg140Cys (chr12-56746805-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_000946.3(PRIM1):c.418C>T(p.Arg140Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000322 in 1,613,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

PRIM1
NM_000946.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.91

Publications

1 publications found

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]

PRIM1 Gene-Disease associations (from GenCC):

primordial dwarfism-immunodeficiency-lipodystrophy syndrome
Inheritance: AR, Unknown Classification: MODERATE, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics

PRIM1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.39756942).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000946.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRIM1	NM_000946.3	MANE Select	c.418C>T	p.Arg140Cys	missense	Exon 4 of 13	NP_000937.1	P49642

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PRIM1	ENST00000338193.11	TSL:1 MANE Select	c.418C>T	p.Arg140Cys	missense	Exon 4 of 13	ENSP00000350491.5	P49642
PRIM1	ENST00000672280.1		c.418C>T	p.Arg140Cys	missense	Exon 4 of 14	ENSP00000500157.1	A0A5F9ZHB6
PRIM1	ENST00000706567.1		c.418C>T	p.Arg140Cys	missense	Exon 4 of 12	ENSP00000516452.1	A0A9L9PXM3

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152076

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000161

AC:

AN:

249172

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000315

AC:

AN:

1461640

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727102

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000369

AC:

AN:

1111848

Other (OTH)

AF:

0.0000166

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152076

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74274

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41416

American (AMR)

AF:

0.00

AC:

AN:

15258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10582

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000580

Hom.:

Bravo

AF:

0.0000264

ESP6500AA

AF:

0.000243

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000248

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.29

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.021

MetaRNN

Benign

0.40

MetaSVM

Benign

-0.57

MutationAssessor

Uncertain

2.5

PhyloP100

4.9

PrimateAI

Benign

0.29

PROVEAN

Pathogenic

-5.5

REVEL

Benign

0.29

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

0.89

Vest4

0.47

MVP

0.70

MPC

0.55

ClinPred

0.73

GERP RS

3.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.55

gMVP

0.65

Mutation Taster

=26/74

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over