rs773028492

Variant names:

• chr11-72329736-T-C
• rs773028492
• NM_030813.6:c.934A>G

Variant summary

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

The NM_030813.6(CLPB):​c.934A>G​(p.Met312Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,613,910 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000031 (0 hom.)
• Consequence: CLPB NM_030813.6 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:4
• Conservation: PhyloP100: 2.64
• Publications: 3 publications found

Genes affected

CLPB (HGNC:30664): (ClpB family mitochondrial disaggregase) This gene belongs to the ATP-ases associated with diverse cellular activities (AAA+) superfamily. Members of this superfamily form ring-shaped homo-hexamers and have highly conserved ATPase domains that are involved in various processes including DNA replication, protein degradation and reactivation of misfolded proteins. All members of this family hydrolyze ATP through their AAA+ domains and use the energy generated through ATP hydrolysis to exert mechanical force on their substrates. In addition to an AAA+ domain, the protein encoded by this gene contains a C-terminal D2 domain, which is characteristic of the AAA+ subfamily of Caseinolytic peptidases to which this protein belongs. It cooperates with Hsp70 in the disaggregation of protein aggregates. Allelic variants of this gene are associated with 3-methylglutaconic aciduria, which causes cataracts and neutropenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

CLPB Gene-Disease associations (from GenCC):

• 3-methylglutaconic aciduria, type VIIB

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• neutropenia, severe congenital, 9, autosomal dominant

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• Leigh syndrome

  Inheritance: AR Classification: LIMITED Submitted by: ClinGen

ACMG classification

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

• BP4: Computational evidence support a benign effect (MetaRNN=0.19563442).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030813.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLPB	NM_030813.6	MANE Plus Clinical	c.934A>G	p.Met312Val	missense	Exon 7 of 17	NP_110440.1
	CLPB	NM_001258392.3	MANE Select	c.844A>G	p.Met282Val	missense	Exon 6 of 16	NP_001245321.1
	CLPB	NM_001258394.3		c.799A>G	p.Met267Val	missense	Exon 8 of 18	NP_001245323.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLPB	ENST00000294053.9	TSL:1 MANE Plus Clinical	c.934A>G	p.Met312Val	missense	Exon 7 of 17	ENSP00000294053.3
	CLPB	ENST00000538039.6	TSL:2 MANE Select	c.844A>G	p.Met282Val	missense	Exon 6 of 16	ENSP00000441518.1
	CLPB	ENST00000543042.6	TSL:2	c.934A>G	p.Met312Val	missense	Exon 7 of 16	ENSP00000439746.2

Frequencies

GnomAD3 genomes AF: 0.0000526 AC: 8 AN: 152184 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

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: 0.0000588

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.0000239 AC: 6 AN: 251390 AF XY: 0.0000147

Gnomad AFR exome AF: 0.0000616

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000440

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000315 AC: 46 AN: 1461726 Hom.: 0 Cov.: 30 AF XY: 0.0000261 AC XY: 19 AN XY: 727178

African (AFR) AF: 0.0000299 AC: 1 AN: 33470

American (AMR) AF: 0.0000224 AC: 1 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

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

European-Non Finnish (NFE) AF: 0.0000369 AC: 41 AN: 1111892

Other (OTH) AF: 0.0000497 AC: 3 AN: 60390

GnomAD4 genome AF: 0.0000526 AC: 8 AN: 152184 Hom.: 0 Cov.: 32 AF XY: 0.0000807 AC XY: 6 AN XY: 74338

African (AFR) AF: 0.00 AC: 0 AN: 41446

American (AMR) AF: 0.000196 AC: 3 AN: 15274

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5204

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

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: 0.0000588 AC: 4 AN: 68026

Other (OTH) AF: 0.000478 AC: 1 AN: 2092

Alfa AF: 0.0000660 Hom.: 0

Bravo AF: 0.0000907

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ExAC AF: 0.0000247 AC: 3

EpiCase AF: 0.0000545

EpiControl AF: 0.000119

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	3-methylglutaconic aciduria, type VIIB (1)
-	1	-	3-methylglutaconic aciduria, type VIIB;C5676954:Neutropenia, severe congenital, 9, autosomal dominant;C5676967:3-methylglutaconic aciduria, type VIIA (1)
-	1	-	CLPB-related disorder (1)
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.099	T
BayesDel_noAF	Benign	-0.20
CADD	Benign	20
DANN	Benign	0.97
DEOGEN2	Benign	0.025	T
Eigen	Benign	-0.022
Eigen_PC	Benign	0.078
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-0.89	T
MutationAssessor	Benign	0.76	N
PhyloP100		2.6
PrimateAI	Uncertain	0.60	T
PROVEAN	Benign	-0.97	N
REVEL	Benign	0.16
Sift	Benign	0.13	T
Sift4G	Benign	0.28	T
Polyphen		0.024	B
Vest4		0.43
MVP		0.67
MPC		0.38
ClinPred		0.092	T
GERP RS		5.4
Varity_R		0.14
gMVP		0.47
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: rs773028492; hg19: chr11-72040780; COSMIC: COSV53630073; COSMIC: COSV53630073;