chr7-45100357-G-C

Variant names:

• chr7-45100357-G-C
• rs761711395
• NM_004749.4:c.1864C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004749.4(TBRG4):​c.1864C>G​(p.Arg622Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,016 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. R622C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TBRG4 NM_004749.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.45
• Publications: 2 publications found

Genes affected

TBRG4 (HGNC:17443): (transforming growth factor beta regulator 4) Enables RNA binding activity. Involved in mitochondrial mRNA processing and regulation of mitochondrial mRNA stability. Located in mitochondrial matrix. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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=0.099318296).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004749.4. 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
	TBRG4	NM_004749.4	MANE Select	c.1864C>G	p.Arg622Gly	missense	Exon 11 of 11	NP_004740.2
	TBRG4	NM_001261834.2		c.1897C>G	p.Arg633Gly	missense	Exon 11 of 11	NP_001248763.1	B4DU42
	TBRG4	NM_030900.4		c.1534C>G	p.Arg512Gly	missense	Exon 9 of 9	NP_112162.1	Q969Z0-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TBRG4	ENST00000258770.8	TSL:1 MANE Select	c.1864C>G	p.Arg622Gly	missense	Exon 11 of 11	ENSP00000258770.3	Q969Z0-1
	TBRG4	ENST00000361278.7	TSL:1	c.1534C>G	p.Arg512Gly	missense	Exon 9 of 9	ENSP00000354992.3	Q969Z0-2
	TBRG4	ENST00000495973.5	TSL:1	n.3153C>G		non_coding_transcript_exon	Exon 9 of 9

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152208 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461808 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727200

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.0000224 AC: 1 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53374

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111990

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152208 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74366

African (AFR) AF: 0.00 AC: 0 AN: 41452

American (AMR) AF: 0.00 AC: 0 AN: 15288

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	17
DANN	Benign	0.97
DEOGEN2	Benign	0.010	T
Eigen	Benign	-0.48
Eigen_PC	Benign	-0.31
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.0034	T
MetaRNN	Benign	0.099	T
MetaSVM	Benign	-1.0	T
PhyloP100		1.4
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.030
Sift	Benign	0.56	T
Sift4G	Benign	0.67	T
Polyphen		0.0070	B
Vest4		0.054
MutPred		0.47		Loss of MoRF binding (P = 0.0131)
MVP		0.043
MPC		0.30
ClinPred		0.20	T
GERP RS		3.4
Varity_R		0.076
gMVP		0.41
Mutation Taster		=92/8	polymorphism

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

Other links and lift over

dbSNP: rs761711395; hg19: chr7-45139956;