Variant chrX-9032458-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_205849.3(FAM9B):c.32A>G(p.Lys11Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000102 in 1,074,550 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 21)

Exomes 𝑓: 0.000010 ( 0 hom. 4 hem. )

Consequence

FAM9B
NM_205849.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.970

Variant links:

Genes affected

FAM9B (HGNC:18404): (family with sequence similarity 9 member B) This gene is a member of a gene family which arose through duplication on the X chromosome. The encoded protein may be localized to the nucleus as the protein contains several nuclear localization signals, and has similarity to a synaptonemal complex protein. [provided by RefSeq, Aug 2011]

FAM9B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.1232132).

BS2

High Hemizygotes in GnomAdExome4 at 4 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAM9B	NM_205849.3 linkuse as main transcript	c.32A>G	p.Lys11Arg	missense_variant	3/9	ENST00000327220.10
FAM9B	XM_047441882.1 linkuse as main transcript	c.167A>G	p.Lys56Arg	missense_variant	2/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAM9B	ENST00000327220.10 linkuse as main transcript	c.32A>G	p.Lys11Arg	missense_variant	3/9	1	NM_205849.3	P1	Q8IZU0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000558

AC:

AN:

179112

Hom.:

AF XY:

0.00

AC XY:

AN XY:

63890

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000124

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000102

AC:

AN:

1074550

Hom.:

Cov.:

AF XY:

0.0000115

AC XY:

AN XY:

349324

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:

0.0000133

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 02, 2024

The c.32A>G (p.K11R) alteration is located in exon 2 (coding exon 2) of the FAM9B gene. This alteration results from a A to G substitution at nucleotide position 32, causing the lysine (K) at amino acid position 11 to be replaced by an arginine (R). 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

Benign

0.10

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.67

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.044

.;T;T

FATHMM_MKL

Benign

0.081

LIST_S2

Benign

0.57

T;T;.

M_CAP

Benign

0.0016

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

.;L;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.47

PROVEAN

Benign

-1.6

N;N;N

REVEL

Benign

0.033

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.88

.;P;P

Vest4

0.14

MutPred

0.15

.;Loss of ubiquitination at K11 (P = 0.0098);Loss of ubiquitination at K11 (P = 0.0098);

MVP

0.23

MPC

0.30

ClinPred

0.28

GERP RS

0.23

Varity_R

0.36

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

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