Genetic Variant ZSCAN21:p.Leu12Pro (chr7-100057041-T-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_145914.3(ZSCAN21):c.35T>C(p.Leu12Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,400 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L12R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ZSCAN21
NM_145914.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.331

Publications

0 publications found

Variant links:

Genes affected

ZSCAN21 (HGNC:13104): (zinc finger and SCAN domain containing 21) Enables DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in positive regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZSCAN21 links:

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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=0.12675771).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZSCAN21	NM_145914.3 link	c.35T>C	p.Leu12Pro	missense_variant	Exon 2 of 4	ENST00000292450.9	NP_666019.1	Q9Y5A6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ZSCAN21	ENST00000292450.9 link	c.35T>C	p.Leu12Pro	missense_variant	Exon 2 of 4	1	NM_145914.3	ENSP00000292450.4	Q9Y5A6
ZSCAN21	ENST00000456748.6 link	c.35T>C	p.Leu12Pro	missense_variant	Exon 2 of 5	5		ENSP00000390960.2	G3V0F4
ZSCAN21	ENST00000438937.1 link	c.35T>C	p.Leu12Pro	missense_variant	Exon 3 of 4	2		ENSP00000404207.1	C9JHD9
ZSCAN21	ENST00000477297.1 link	n.131T>C		non_coding_transcript_exon_variant	Exon 1 of 3	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461400

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727002

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:

33464

American (AMR)

AF:

0.00

AC:

AN:

44662

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26078

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53350

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5736

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111818

Other (OTH)

AF:

0.00

AC:

AN:

60364

⚠️ 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: 0.375

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

0.079

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.25

T;T;T;T

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.23

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.44

T;T;T;T

M_CAP

Benign

0.0054

MetaRNN

Benign

0.13

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.0

M;.;.;.

PhyloP100

0.33

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-2.8

D;D;D;D

REVEL

Benign

0.047

Sift

Uncertain

0.018

D;D;D;D

Sift4G

Benign

0.061

T;D;D;D

Polyphen

0.0030

B;.;.;D

Vest4

0.23

MutPred

0.24

Gain of glycosylation at L12 (P = 0.0271);Gain of glycosylation at L12 (P = 0.0271);Gain of glycosylation at L12 (P = 0.0271);Gain of glycosylation at L12 (P = 0.0271);

MVP

0.44

MPC

0.19

ClinPred

0.10

GERP RS

3.0

Varity_R

0.24

gMVP

0.60

Mutation Taster

=98/2

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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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