Genetic Variant JRKL:p.Thr333Arg (chr11-96391647-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001261833.2(JRKL):c.998C>G(p.Thr333Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,810 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

JRKL
NM_001261833.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.806

Publications

0 publications found

Variant links:

Genes affected

JRKL (HGNC:6200): (JRK like) The function of this gene has not yet been defined, however, the encoded protein shares similarity with the human (41% identical) and mouse (34% identical) jerky gene products. This protein may act as a nuclear regulatory protein. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, May 2012]

JRKL links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JRKL	NM_001261833.2 link	c.998C>G	p.Thr333Arg	missense_variant	Exon 2 of 2	ENST00000332349.5	NP_001248762.1	Q9Y4A0
JRKL	NM_003772.4 link	c.998C>G	p.Thr333Arg	missense_variant	Exon 1 of 1		NP_003763.2	Q9Y4A0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
JRKL	ENST00000332349.5 link	c.998C>G	p.Thr333Arg	missense_variant	Exon 2 of 2	2	NM_001261833.2	ENSP00000333350.4		Q9Y4A0
JRKL	ENST00000546177.1 link	n.85+1574C>G		intron_variant	Intron 1 of 2	1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461810

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727202

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111980

Other (OTH)

AF:

0.00

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 26, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.998C>G (p.T333R) alteration is located in exon 1 (coding exon 1) of the JRKL gene. This alteration results from a C to G substitution at nucleotide position 998, causing the threonine (T) at amino acid position 333 to be replaced by an arginine (R). 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

Benign

0.28

BayesDel_addAF

Benign

-0.081

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.19

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.80

M_CAP

Benign

0.010

MetaRNN

Uncertain

0.62

MetaSVM

Benign

-0.94

MutationAssessor

Benign

2.0

PhyloP100

0.81

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-2.8

REVEL

Benign

0.26

Sift

Benign

0.049

Sift4G

Benign

0.063

Polyphen

0.34

Vest4

0.47

MutPred

0.77

Gain of MoRF binding (P = 0.013);

MVP

0.63

ClinPred

0.76

GERP RS

2.5

Varity_R

0.19

gMVP

0.78

Mutation Taster

=94/6

polymorphism

(source)

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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chr11-96391647-C-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over