4-7064167-A-G

Position:

• chr4-7064167-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_025196.4(GRPEL1):​c.119T>C​(p.Leu40Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: GRPEL1 NM_025196.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.18

Genes affected

GRPEL1 (HGNC:19696): (GrpE like 1, mitochondrial) Enables identical protein binding activity and unfolded protein binding activity. Predicted to be involved in protein import into mitochondrial matrix. Located in mitochondrial matrix and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.14527097).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GRPEL1	NM_025196.4	c.119T>C	p.Leu40Pro	missense_variant	2/4	ENST00000264954.5	NP_079472.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GRPEL1	ENST00000264954.5	c.119T>C	p.Leu40Pro	missense_variant	2/4	1	NM_025196.4	ENSP00000264954	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461816 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727216

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000540

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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 10, 2023

The c.119T>C (p.L40P) alteration is located in exon 2 (coding exon 2) of the GRPEL1 gene. This alteration results from a T to C substitution at nucleotide position 119, causing the leucine (L) at amino acid position 40 to be replaced by a proline (P). 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	0.069
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	18
DANN	Benign	0.97
DEOGEN2	Benign	0.0083	T
Eigen	Benign	0.039
Eigen_PC	Benign	0.075
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.50	T
M_CAP	Benign	0.0099	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.3	L
MutationTaster	Benign	1.0	D
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-0.78	N
REVEL	Benign	0.059
Sift	Benign	0.085	T
Sift4G	Benign	0.38	T
Polyphen		0.78	P
Vest4		0.23
MutPred		0.21		Loss of stability (P = 0.0281);
MVP		0.21
MPC		0.37
ClinPred		0.38	T
GERP RS		4.3
Varity_R		0.071
gMVP		0.34

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: chr4-7065894;