chr22-31344699-T-C

Position:

• chr22-31344699-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_014323.3(PATZ1):​c.904A>G​(p.Thr302Ala) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PATZ1 NM_014323.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.67

Genes affected

PATZ1 (HGNC:13071): (POZ/BTB and AT hook containing zinc finger 1) The protein encoded by this gene contains an A-T hook DNA binding motif which usually binds to other DNA binding structures to play an important role in chromatin modeling and transcription regulation. Its Poz domain is thought to function as a site for protein-protein interaction and is required for transcriptional repression, and the zinc-fingers comprise the DNA binding domain. Since the encoded protein has typical features of a transcription factor, it is postulated to be a repressor of gene expression. In small round cell sarcoma, this gene is fused to EWS by a small inversion of 22q, then the hybrid is thought to be translocated (t(1;22)(p36.1;q12). The rearrangement of chromosome 22 involves intron 8 of EWS and exon 1 of this gene creating a chimeric sequence containing the transactivation domain of EWS fused to zinc finger domain of this protein. This is a distinct example of an intra-chromosomal rearrangement of chromosome 22. Four alternatively spliced transcript variants are described for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.42026886).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PATZ1	NM_014323.3	c.904A>G	p.Thr302Ala	missense_variant	1/5	ENST00000266269.10
PATZ1	NM_032050.2	c.904A>G	p.Thr302Ala	missense_variant	1/4
PATZ1	NM_032051.2	c.904A>G	p.Thr302Ala	missense_variant	1/3
PATZ1	NM_032052.2	c.904A>G	p.Thr302Ala	missense_variant	1/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PATZ1	ENST00000266269.10	c.904A>G	p.Thr302Ala	missense_variant	1/5	1	NM_014323.3	P1
PATZ1	ENST00000351933.8	c.904A>G	p.Thr302Ala	missense_variant	1/4	1
PATZ1	ENST00000215919.3	c.904A>G	p.Thr302Ala	missense_variant	1/3	1
PATZ1	ENST00000405309.7	c.904A>G	p.Thr302Ala	missense_variant	1/5	1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 23, 2024

The c.904A>G (p.T302A) alteration is located in exon 1 (coding exon 1) of the PATZ1 gene. This alteration results from a A to G substitution at nucleotide position 904, causing the threonine (T) at amino acid position 302 to be replaced by an alanine (A). 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	-0.041	T
BayesDel_noAF	Benign	-0.30
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	T;.;.;.
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.94	D;D;D;D
M_CAP	Uncertain	0.093	D
MetaRNN	Benign	0.42	T;T;T;T
MetaSVM	Uncertain	-0.11	T
MutationAssessor	Benign	0.90	L;L;L;L
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-1.1	N;N;N;N
REVEL	Uncertain	0.38
Sift	Benign	0.081	T;T;T;T
Sift4G	Benign	0.18	T;T;T;T
Polyphen		0.99	D;D;D;P
Vest4		0.54
MutPred		0.33		Gain of ubiquitination at K299 (P = 0.0693);Gain of ubiquitination at K299 (P = 0.0693);Gain of ubiquitination at K299 (P = 0.0693);Gain of ubiquitination at K299 (P = 0.0693);
MVP		0.73
MPC		2.0
ClinPred		0.93	D
GERP RS		4.8
Varity_R		0.19
gMVP		0.48

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-31740685;