22-23958452-C-A

Variant names:

• chr22-23958452-C-A
• rs1268817153
• NM_001080843.4:c.358G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001080843.4(GSTT2B):​c.358G>T​(p.Gly120Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 20)
  • Exomes 𝑓: 0.0000041 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: GSTT2B NM_001080843.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -1.81
• Publications: 0 publications found

Genes affected

GSTT2B (HGNC:33437): (glutathione S-transferase theta 2B) The protein encoded by this gene, glutathione S-transferase (GST) theta 2B (GSTT2B), is a member of a superfamily of proteins that catalyze the conjugation of reduced glutathione to a variety of electrophilic and hydrophobic compounds. Human GSTs can be divided into five main classes: alpha, mu, pi, theta, and zeta. The theta class includes GSTT1, GSTT2, and GSTT2B. GSTT2 and GSTT2B are nearly identical to each other, and share 55% amino acid identity with GSTT1. All three genes may play a role in human carcinogenesis. The GSTT2B gene is a pseudogene in some populations. [provided by RefSeq, Sep 2015]

ENSG00000290199 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.15080288).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001080843.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GSTT2B	NM_001080843.4	MANE Select	c.358G>T	p.Gly120Trp	missense	Exon 4 of 5	NP_001074312.1	P0CG30
	GSTT2B	NM_001363804.1		c.358G>T	p.Gly120Trp	missense	Exon 4 of 5	NP_001350733.1	Q6ICJ4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GSTT2B	ENST00000290765.9	TSL:1 MANE Select	c.358G>T	p.Gly120Trp	missense	Exon 4 of 5	ENSP00000290765.4	P0CG30
	GSTT2B	ENST00000404172.3	TSL:1	c.358G>T	p.Gly120Trp	missense	Exon 4 of 5	ENSP00000385116.3	Q6ICJ4
	GSTT2B	ENST00000895419.1		c.460G>T	p.Gly154Trp	missense	Exon 5 of 6	ENSP00000565478.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152194 Hom.: 0 Cov.: 20

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000410 AC: 6 AN: 1461646 Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3 AN XY: 727130

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

African (AFR) AF: 0.000149 AC: 5 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86240

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111834

Other (OTH) AF: 0.00 AC: 0 AN: 60376

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000657 AC: 1 AN: 152194 Hom.: 0 Cov.: 20 AF XY: 0.0000135 AC XY: 1 AN XY: 74346

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

African (AFR) AF: 0.0000241 AC: 1 AN: 41470

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4812

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.55
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	14
DANN	Benign	0.97
DEOGEN2	Benign	0.084	T
Eigen	Benign	-0.42
Eigen_PC	Benign	-0.70
FATHMM_MKL	Benign	0.0028	N
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.0050	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		-1.8
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-0.69	N
REVEL	Benign	0.052
Sift	Benign	0.18	T
Sift4G	Benign	0.18	T
Polyphen		1.0	D
Vest4		0.29
MutPred		0.46		Loss of relative solvent accessibility (P = 0.114)
MVP		0.082
MPC		3.4
ClinPred		0.31	T
GERP RS		-0.55
Varity_R		0.27
gMVP		0.54
Mutation Taster		=86/14	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1268817153; hg19: chr22-24300639;