Genetic Variant CIBAR1:p.Arg160Gly (chr8-93709810-C-G) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_145269.5(CIBAR1):c.478C>G(p.Arg160Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,212 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. R160Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CIBAR1
NM_145269.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.66

Publications

3 publications found

Variant links:

Genes affected

CIBAR1 (HGNC:30452): (CBY1 interacting BAR domain containing 1) Enables phospholipid binding activity. Involved in several processes, including inner mitochondrial membrane organization; limb morphogenesis; and membrane tubulation. Located in several cellular components, including centriole; ciliary base; and mitochondrial crista. [provided by Alliance of Genome Resources, Apr 2022]

CIBAR1 Gene-Disease associations (from GenCC):

postaxial polydactyly type A
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
polydactyly, postaxial, type A9
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

CIBAR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.964

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CIBAR1	NM_145269.5 link	c.478C>G	p.Arg160Gly	missense_variant	Exon 6 of 9	ENST00000518322.6	NP_660312.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CIBAR1	ENST00000518322.6 link	c.478C>G	p.Arg160Gly	missense_variant	Exon 6 of 9	5	NM_145269.5	ENSP00000429367.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000402

AC:

AN:

248568

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461212

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726826

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.0000224

AC:

AN:

44702

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39678

South Asian (SAS)

AF:

0.00

AC:

AN:

86066

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5704

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111724

Other (OTH)

AF:

0.00

AC:

AN:

60352

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000828

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.75

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.25

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

T;T;T;.;T;.;.;T

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.92

D;D;T;D;D;.;D;D

M_CAP

Benign

0.068

MetaRNN

Pathogenic

0.96

D;D;D;D;D;D;D;D

MetaSVM

Uncertain

-0.12

PhyloP100

4.7

PrimateAI

Benign

0.44

PROVEAN

Pathogenic

-6.4

D;D;D;D;.;D;D;D

REVEL

Pathogenic

0.74

Sift

Uncertain

0.0010

D;D;D;D;.;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D;D;D;D

Polyphen

1.0

.;D;.;D;.;.;.;.

Vest4

0.92, 0.88, 0.93, 0.93

MutPred

0.88

.;Loss of MoRF binding (P = 0.025);.;Loss of MoRF binding (P = 0.025);.;.;.;.;

MVP

0.77

MPC

0.71

ClinPred

0.99

GERP RS

4.8

PromoterAI

0.0032

Neutral

(source)

Varity_R

0.86

gMVP

0.73

Mutation Taster

=39/61

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over