chr10-73210253-A-T

Variant summary

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

The NM_173348.2(FAM149B1):​c.713A>T​(p.Glu238Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000168 in 1,549,386 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

FAM149B1
NM_173348.2 missense, splice_region

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.52
Variant links:
Genes affected
FAM149B1 (HGNC:29162): (family with sequence similarity 149 member B1) Involved in cilium assembly and protein localization to cilium. Predicted to be located in cilium. Implicated in Joubert syndrome. [provided by Alliance of Genome Resources, Apr 2022]

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/exons MANE Protein UniProt
FAM149B1NM_173348.2 linkuse as main transcriptc.713A>T p.Glu238Val missense_variant, splice_region_variant 7/14 ENST00000242505.11 NP_775483.1 Q96BN6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FAM149B1ENST00000242505.11 linkuse as main transcriptc.713A>T p.Glu238Val missense_variant, splice_region_variant 7/145 NM_173348.2 ENSP00000242505.6 Q96BN6-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
32
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
GnomAD3 exomes
AF:
0.00000637
AC:
1
AN:
156900
Hom.:
0
AF XY:
0.0000121
AC XY:
1
AN XY:
82860
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:
0.0000164
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000179
AC:
25
AN:
1397206
Hom.:
0
Cov.:
28
AF XY:
0.0000189
AC XY:
13
AN XY:
689302
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:
0.0000223
Gnomad4 OTH exome
AF:
0.0000173
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74342
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:
0.0000113

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 submitterclinical testingAmbry GeneticsNov 17, 2023The c.713A>T (p.E238V) alteration is located in exon 7 (coding exon 7) of the FAM149B1 gene. This alteration results from a A to T substitution at nucleotide position 713, causing the glutamic acid (E) at amino acid position 238 to be replaced by a valine (V). 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
0.27
BayesDel_addAF
Benign
-0.025
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
T;.
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Benign
-0.64
T
MutationAssessor
Uncertain
2.6
M;.
PrimateAI
Benign
0.38
T
PROVEAN
Pathogenic
-5.1
D;D
REVEL
Benign
0.16
Sift
Uncertain
0.0030
D;D
Sift4G
Uncertain
0.0090
D;D
Polyphen
0.54
P;.
Vest4
0.37
MutPred
0.42
Loss of disorder (P = 0.0138);.;
MVP
0.30
ClinPred
0.96
D
GERP RS
4.9
Varity_R
0.34
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.24
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.24
Position offset: -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.

Other links and lift over

dbSNP: rs1398498062; hg19: chr10-74970011; API