Genetic Variant ATP5PB:p.His200Leu (chr1-111459542-A-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001688.5(ATP5PB):c.599A>T(p.His200Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,642 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. H200R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ATP5PB
NM_001688.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.65

Publications

1 publications found

Variant links:

Genes affected

ATP5PB (HGNC:840): (ATP synthase peripheral stalk-membrane subunit b) This gene encodes a subunit of mitochondrial ATP synthase. Mitochondrial ATP synthase catalyzes ATP synthesis, utilizing an electrochemical gradient of protons across the inner membrane during oxidative phosphorylation. ATP synthase is composed of two linked multi-subunit complexes: the soluble catalytic core, F1, and the membrane-spanning component, Fo, comprising the proton channel. The catalytic portion of mitochondrial ATP synthase consists of 5 different subunits (alpha, beta, gamma, delta, and epsilon) assembled with a stoichiometry of 3 alpha, 3 beta, and a single representative of the other 3. The proton channel seems to have nine subunits (a, b, c, d, e, f, g, F6 and 8). This gene encodes the b subunit of the proton channel. [provided by RefSeq, Jul 2008]

ATP5PB links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.748

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATP5PB	NM_001688.5 link	c.599A>T	p.His200Leu	missense_variant	Exon 6 of 7	ENST00000369722.8	NP_001679.2	P24539Q08ET0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ATP5PB	ENST00000369722.8 link	c.599A>T	p.His200Leu	missense_variant	Exon 6 of 7	1	NM_001688.5	ENSP00000358737.3	P24539
ATP5PB	ENST00000483994.1 link	c.416A>T	p.His139Leu	missense_variant	Exon 4 of 5	2		ENSP00000420366.1	Q5QNZ2
ATP5PB	ENST00000369721.8 link	n.530A>T		non_coding_transcript_exon_variant	Exon 5 of 6	2
ATP5PB	ENST00000468818.1 link	n.369A>T		non_coding_transcript_exon_variant	Exon 5 of 6	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251042

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461642

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727132

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111830

Other (OTH)

AF:

0.00

AC:

AN:

60374

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Benign

-0.037

BayesDel_noAF

Benign

-0.29

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.22

T;.

Eigen

Benign

0.17

Eigen_PC

Benign

0.17

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.86

D;D

M_CAP

Benign

0.046

MetaRNN

Pathogenic

0.75

D;D

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.6

M;.

PhyloP100

8.6

PrimateAI

Benign

0.38

PROVEAN

Pathogenic

-5.4

D;D

REVEL

Benign

0.26

Sift

Uncertain

0.0080

D;D

Sift4G

Uncertain

0.013

D;D

Polyphen

0.84

P;.

Vest4

0.58

MutPred

0.74

Loss of disorder (P = 0.0794);.;

MVP

0.32

MPC

0.62

ClinPred

0.98

GERP RS

4.8

Varity_R

0.55

gMVP

0.60

Mutation Taster

=68/32

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.20

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.20

Position offset: 14

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over