chr22-19132031-G-A

Variant names:

• chr22-19132031-G-A
• NM_053006.5:c.632G>A

Variant summary

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

The NM_053006.5(TSSK2):​c.632G>A​(p.Cys211Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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: 32)
• Consequence: TSSK2 NM_053006.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.14

Genes affected

TSSK2 (HGNC:11401): (testis specific serine kinase 2) TSSK2 belongs to a family of serine/threonine kinases highly expressed in testis (Hao et al., 2004 [PubMed 15044604]).[supplied by OMIM, Mar 2008]

ESS2 (HGNC:16817): (ess-2 splicing factor homolog) This gene is located within the minimal DGS critical region (MDGCR) thought to contain the gene(s) responsible for a group of developmental disorders. These disorders include DiGeorge syndrome, velocardiofacial syndrome, conotruncal anomaly face syndrome, and some familial or sporadic conotruncal cardiac defects which have been associated with microdeletion of 22q11.2. The encoded protein may be a component of C complex spliceosomes, and the orthologous protein in the mouse localizes to the nucleus. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2015]

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=0.32850742).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSSK2	NM_053006.5	c.632G>A	p.Cys211Tyr	missense_variant	Exon 1 of 1	ENST00000399635.4	NP_443732.3
ESS2	NM_022719.3	c.*2165C>T		3_prime_UTR_variant	Exon 10 of 10	ENST00000252137.11	NP_073210.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSSK2	ENST00000399635.4	c.632G>A	p.Cys211Tyr	missense_variant	Exon 1 of 1	6	NM_053006.5	ENSP00000382544.2
ESS2	ENST00000252137	c.*2165C>T		3_prime_UTR_variant	Exon 10 of 10	1	NM_022719.3	ENSP00000252137.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Aug 15, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.632G>A (p.C211Y) alteration is located in exon 1 (coding exon 1) of the TSSK2 gene. This alteration results from a G to A substitution at nucleotide position 632, causing the cysteine (C) at amino acid position 211 to be replaced by a tyrosine (Y). 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	Pathogenic	0.76
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.040
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.26	T
Eigen	Benign	-0.069
Eigen_PC	Benign	0.0077
FATHMM_MKL	Benign	0.50	N
LIST_S2	Uncertain	0.86	D
M_CAP	Benign	0.046	D
MetaRNN	Benign	0.33	T
MetaSVM	Uncertain	-0.13	T
MutationAssessor	Benign	0.30	N
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-4.1	D
REVEL	Uncertain	0.56
Sift	Uncertain	0.021	D
Sift4G	Benign	0.60	T
Polyphen		0.39	B
Vest4		0.15
MutPred		0.61		Loss of catalytic residue at M209 (P = 0.0015);
MVP		0.83
MPC		0.65
ClinPred		0.86	D
GERP RS		5.1
Varity_R		0.52
gMVP		0.67

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: chr22-19119544;