3-44396787-G-A

Position:

• chr3-44396787-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The ENST00000342649.9(TCAIM):​c.838G>A​(p.Gly280Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: TCAIM ENST00000342649.9 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.61

Genes affected

TCAIM (HGNC:25241): (T cell activation inhibitor, mitochondrial) Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

TCAIM (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.978

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TCAIM	NM_173826.4	c.838G>A	p.Gly280Ser	missense_variant	8/11	ENST00000342649.9	NP_776187.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TCAIM	ENST00000342649.9	c.838G>A	p.Gly280Ser	missense_variant	8/11	1	NM_173826.4	ENSP00000341539.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

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

Jan 09, 2023

The c.838G>A (p.G280S) alteration is located in exon 8 (coding exon 7) of the TCAIM gene. This alteration results from a G to A substitution at nucleotide position 838, causing the glycine (G) at amino acid position 280 to be replaced by a serine (S). 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	0.34
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.53	D;D
Eigen	Pathogenic	0.92
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.94	.;D
M_CAP	Uncertain	0.16	D
MetaRNN	Pathogenic	0.98	D;D
MetaSVM	Uncertain	0.68	D
MutationAssessor	Uncertain	2.4	M;M
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.68	T
PROVEAN	Pathogenic	-6.0	D;D
REVEL	Pathogenic	0.91
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	D;D
Vest4		0.95
MutPred		0.86		Loss of sheet (P = 0.0315);Loss of sheet (P = 0.0315);
MVP		0.91
MPC		0.82
ClinPred		1.0	D
GERP RS		5.6
Varity_R		0.92
gMVP		0.83

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

Publications

LitVar

Other links and lift over

dbSNP: rs1252773217; hg19: chr3-44438279;