Genetic Variant PRMT7:p.Glu108Gln (chr16-68329105-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_019023.5(PRMT7):c.322G>C(p.Glu108Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PRMT7
NM_019023.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.63

Publications

1 publications found

Variant links:

Genes affected

PRMT7 (HGNC:25557): (protein arginine methyltransferase 7) This gene encodes a member of the protein arginine N-methyltransferase family of proteins. The encoded enzyme transfers single methyl groups to arginine residues to generate monomethylarginines on histone proteins as well as other protein substrates. This enzyme plays a role in a wide range of biological processes, including neuronal differentiation, male germ line imprinting, small nuclear ribonucleoprotein biogenesis, and regulation of the Wnt signaling pathway. Mutations in this gene underlie multiple related syndromes in human patients characterized by intellectual disability, short stature and other features. The encoded protein may promote breast cancer cell invasion and metastasis in human patients. [provided by RefSeq, May 2017]

PRMT7 Gene-Disease associations (from GenCC):

short stature-brachydactyly-obesity-global developmental delay syndrome
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

PRMT7 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14596745).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRMT7	NM_019023.5 link	c.322G>C	p.Glu108Gln	missense_variant	Exon 6 of 19	ENST00000441236.3	NP_061896.1	Q9NVM4-1A0A024R726

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRMT7	ENST00000441236.3 link	c.322G>C	p.Glu108Gln	missense_variant	Exon 6 of 19	1	NM_019023.5	ENSP00000409324.2		Q9NVM4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251442

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460554

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726676

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33448

American (AMR)

AF:

0.0000447

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86184

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110914

Other (OTH)

AF:

0.00

AC:

AN:

60346

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.58

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.048

.;.;.;T;T

Eigen

Benign

-0.15

Eigen_PC

Benign

0.015

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.91

D;D;D;.;D

M_CAP

Benign

0.0054

MetaRNN

Benign

0.15

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

.;.;.;L;L

PhyloP100

1.6

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.67

N;.;N;N;.

REVEL

Benign

0.021

Sift

Benign

0.42

T;.;T;T;.

Sift4G

Benign

0.38

T;T;T;T;T

Polyphen

0.016, 0.020

.;.;B;B;B

Vest4

0.29, 0.26, 0.26

MutPred

0.27

Gain of MoRF binding (P = 0.0269);Gain of MoRF binding (P = 0.0269);.;Gain of MoRF binding (P = 0.0269);Gain of MoRF binding (P = 0.0269);

MVP

0.31

MPC

0.19

ClinPred

0.19

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

Varity_R

0.075

gMVP

0.45

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over