12-120710530-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001080533.3(UNC119B):​c.56G>A​(p.Gly19Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000106 in 1,222,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

UNC119B
NM_001080533.3 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.668
Variant links:
Genes affected
UNC119B (HGNC:16488): (unc-119 lipid binding chaperone B) Enables lipid binding activity. Involved in cilium assembly and lipoprotein transport. Located in ciliary transition zone. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0550555).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
UNC119BNM_001080533.3 linkuse as main transcriptc.56G>A p.Gly19Glu missense_variant 1/5 ENST00000344651.5 NP_001074002.1 A6NIH7Q69YW6
LOC124903036XR_007063491.1 linkuse as main transcriptn.-24C>T upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
UNC119BENST00000344651.5 linkuse as main transcriptc.56G>A p.Gly19Glu missense_variant 1/52 NM_001080533.3 ENSP00000344942.4 A6NIH7
UNC119BENST00000539658.1 linkuse as main transcriptn.14G>A non_coding_transcript_exon_variant 1/45 ENSP00000520658.1
UNC119BENST00000618898.1 linkuse as main transcriptn.73G>A non_coding_transcript_exon_variant 1/16

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000386
AC:
1
AN:
25924
Hom.:
0
AF XY:
0.0000640
AC XY:
1
AN XY:
15632
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:
0.000197
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000106
AC:
13
AN:
1222066
Hom.:
0
Cov.:
33
AF XY:
0.0000151
AC XY:
9
AN XY:
597714
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:
0.000237
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000207
AC:
2

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 GeneticsJun 24, 2022The c.56G>A (p.G19E) alteration is located in exon 1 (coding exon 1) of the UNC119B gene. This alteration results from a G to A substitution at nucleotide position 56, causing the glycine (G) at amino acid position 19 to be replaced by a glutamic acid (E). 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
0.18
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0072
T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.45
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.54
T
M_CAP
Pathogenic
0.45
D
MetaRNN
Benign
0.055
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
0.27
N
REVEL
Benign
0.052
Sift
Benign
0.079
T
Sift4G
Benign
0.20
T
Polyphen
0.0
B
Vest4
0.074
MutPred
0.35
Gain of sheet (P = 0.0125);
MVP
0.043
MPC
1.7
ClinPred
0.15
T
GERP RS
2.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.1
Varity_R
0.071
gMVP
0.21

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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.

Other links and lift over

dbSNP: rs750818826; hg19: chr12-121148333; API