NM_030759.5:c.157G>A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_030759.5(NRBF2):​c.157G>A​(p.Ala53Thr) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 1,600,488 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

NRBF2
NM_030759.5 missense, splice_region

Scores

8
8
3
Splicing: ADA: 0.9998
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.77

Publications

0 publications found
Variant links:
Genes affected
NRBF2 (HGNC:19692): (nuclear receptor binding factor 2) Involved in autophagy. Located in cytoplasm. Colocalizes with phosphatidylinositol 3-kinase complex, class III. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NRBF2NM_030759.5 linkc.157G>A p.Ala53Thr missense_variant, splice_region_variant Exon 4 of 4 ENST00000277746.11 NP_110386.2 Q96F24-1
NRBF2NM_001282405.2 linkc.127G>A p.Ala43Thr missense_variant, splice_region_variant Exon 3 of 3 NP_001269334.1 Q96F24-3
NRBF2XM_047425132.1 linkc.25G>A p.Ala9Thr missense_variant, splice_region_variant Exon 3 of 3 XP_047281088.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NRBF2ENST00000277746.11 linkc.157G>A p.Ala53Thr missense_variant, splice_region_variant Exon 4 of 4 1 NM_030759.5 ENSP00000277746.6 Q96F24-1
NRBF2ENST00000435510.6 linkc.127G>A p.Ala43Thr missense_variant, splice_region_variant Exon 3 of 3 2 ENSP00000397502.2 Q96F24-3

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152074
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000246
AC:
6
AN:
243912
AF XY:
0.0000151
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000542
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000138
AC:
20
AN:
1448414
Hom.:
0
Cov.:
30
AF XY:
0.0000180
AC XY:
13
AN XY:
720336
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32756
American (AMR)
AF:
0.00
AC:
0
AN:
42770
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25652
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39576
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85182
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53304
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4074
European-Non Finnish (NFE)
AF:
0.0000181
AC:
20
AN:
1105404
Other (OTH)
AF:
0.00
AC:
0
AN:
59696
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.00000658
AC:
1
AN:
152074
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74286
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41412
American (AMR)
AF:
0.00
AC:
0
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10584
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Dec 07, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.157G>A (p.A53T) alteration is located in exon 4 (coding exon 4) of the NRBF2 gene. This alteration results from a G to A substitution at nucleotide position 157, causing the alanine (A) at amino acid position 53 to be replaced by a threonine (T). 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
0.91
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.36
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Benign
0.10
.;T
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.027
D
MetaRNN
Pathogenic
0.82
D;D
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Uncertain
2.3
.;M
PhyloP100
8.8
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.0
D;N
REVEL
Uncertain
0.37
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.011
D;D
Polyphen
1.0
.;D
Vest4
0.88
MutPred
0.62
.;Loss of helix (P = 0.0104);
MVP
0.85
MPC
0.26
ClinPred
0.38
T
GERP RS
5.4
Varity_R
0.57
gMVP
0.50
Mutation Taster
=11/89
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.97
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1330055637; hg19: chr10-64913271; API