NM_006012.4:c.405G>A

Variant names:

• chr19-6364489-G-A
• rs7260547
• NM_006012.4:c.405G>A

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_Moderate BP6_Very_Strong BP7 BA1

The NM_006012.4(CLPP):​c.405G>A​(p.Thr135Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0049 in 1,611,230 control chromosomes in the GnomAD database, including 314 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.027 (160 hom., cov: 30)
  • Exomes 𝑓: 0.0026 (154 hom.)
• Consequence: CLPP NM_006012.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: -1.17

Genes affected

CLPP (HGNC:2084): (caseinolytic mitochondrial matrix peptidase proteolytic subunit) The protein encoded by this gene belongs to the peptidase family S14 and hydrolyzes proteins into small peptides in the presence of ATP and magnesium. The protein is transported into mitochondrial matrix and is associated with the inner mitochondrial membrane. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -19 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.31).
• BP6: Variant 19-6364489-G-A is Benign according to our data. Variant chr19-6364489-G-A is described in ClinVar as [Benign]. Clinvar id is 226520.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-1.16 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0898 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CLPP	NM_006012.4	c.405G>A	p.Thr135Thr	synonymous_variant	Exon 4 of 6	ENST00000245816.11	NP_006003.1
CLPP	XM_047439486.1	c.501G>A	p.Thr167Thr	synonymous_variant	Exon 3 of 5		XP_047295442.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CLPP	ENST00000245816.11	c.405G>A	p.Thr135Thr	synonymous_variant	Exon 4 of 6	1	NM_006012.4	ENSP00000245816.3

Frequencies

GnomAD3 genomes AF: 0.0265 AC: 4027 AN: 151934 Hom.: 156 Cov.: 30

Gnomad AFR AF: 0.0920

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0101

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00637

Gnomad NFE AF: 0.000309

Gnomad OTH AF: 0.0229

GnomAD3 exomes AF: 0.00707 AC: 1728 AN: 244518 Hom.: 62 AF XY: 0.00508 AC XY: 676 AN XY: 133144

Gnomad AFR exome AF: 0.0964

Gnomad AMR exome AF: 0.00505

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000264

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000137

Gnomad OTH exome AF: 0.00318

GnomAD4 exome AF: 0.00263 AC: 3840 AN: 1459178 Hom.: 154 Cov.: 31 AF XY: 0.00216 AC XY: 1569 AN XY: 725858

Gnomad4 AFR exome AF: 0.0912

Gnomad4 AMR exome AF: 0.00617

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000267

Gnomad4 FIN exome AF: 0.0000190

Gnomad4 NFE exome AF: 0.0000702

Gnomad4 OTH exome AF: 0.00639

GnomAD4 genome AF: 0.0266 AC: 4051 AN: 152052 Hom.: 160 Cov.: 30 AF XY: 0.0258 AC XY: 1915 AN XY: 74344

Gnomad4 AFR AF: 0.0923

Gnomad4 AMR AF: 0.0101

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000309

Gnomad4 OTH AF: 0.0227

Alfa AF: 0.00484 Hom.: 50

Bravo AF: 0.0306

Asia WGS AF: 0.00549 AC: 19 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000238

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:3

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 15, 2016

Mayo Clinic Laboratories, Mayo Clinic

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

not specified Benign:2

Nov 24, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Thr135Thr in exon 4 of CLPP: This variant is not expected to have clinical signi ficance because it does not alter an amino acid residue and is not located withi n the splice consensus sequence. It has been identified in 8.7% (384/4406) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs7260547). -

Oct 05, 2017

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.31
CADD	Benign	2.2
DANN	Benign	0.81

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

LitVar

Other links and lift over

dbSNP: rs7260547; hg19: chr19-6364500;