Genetic Variant CIMIP2B:p.Tyr168Asn (chr9-35562691-A-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001164310.3(CIMIP2B):c.502T>A(p.Tyr168Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000806 in 1,613,598 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

CIMIP2B
NM_001164310.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.33

Variant links:

Genes affected

CIMIP2B (HGNC:34242): (ciliary microtubule inner protein 2B)

CIMIP2B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CIMIP2B	NM_001164310.3 link	c.502T>A	p.Tyr168Asn	missense_variant	Exon 4 of 6	ENST00000399742.7	NP_001157782.1	A8MTA8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM166B	ENST00000399742.7 link	c.502T>A	p.Tyr168Asn	missense_variant	Exon 4 of 6	1	NM_001164310.3	ENSP00000382646.2		A8MTA8-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461404

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

726940

show subpopulations

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:

0.0000108

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.502T>A (p.Y168N) alteration is located in exon 4 (coding exon 4) of the FAM166B gene. This alteration results from a T to A substitution at nucleotide position 502, causing the tyrosine (Y) at amino acid position 168 to be replaced by an asparagine (N). 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

Pathogenic

0.62

BayesDel_addAF

Uncertain

0.081

BayesDel_noAF

Benign

-0.12

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.25

.;T;.

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.85

T;D;D

M_CAP

Benign

0.024

MetaRNN

Uncertain

0.46

T;T;T

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.7

.;L;L

PrimateAI

Uncertain

0.54

PROVEAN

Pathogenic

-7.6

.;D;.

REVEL

Benign

0.20

Sift

Uncertain

0.0040

.;D;.

Sift4G

Uncertain

0.0050

D;D;.

Polyphen

0.99, 1.0

.;D;D

Vest4

0.82

MutPred

0.30

Loss of phosphorylation at Y168 (P = 0.0171);Loss of phosphorylation at Y168 (P = 0.0171);Loss of phosphorylation at Y168 (P = 0.0171);

MVP

0.20

MPC

0.36

ClinPred

0.99

GERP RS

5.1

Varity_R

0.50

gMVP

0.85

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over