19-34594339-C-T

Variant summary

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

The NM_001025591.4(SCGB2B2):​c.82G>A​(p.Asp28Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000446 in 1,613,910 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000037 ( 1 hom. )

Consequence

SCGB2B2
NM_001025591.4 missense

Scores

2
1
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.52
Variant links:
Genes affected
SCGB2B2 (HGNC:27616): (secretoglobin family 2B member 2) Predicted to be located in extracellular region. [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=0.043231368).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCGB2B2NM_001025591.4 linkuse as main transcriptc.82G>A p.Asp28Asn missense_variant 3/4 ENST00000601241.6 NP_001020762.1 Q4G0G5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCGB2B2ENST00000601241.6 linkuse as main transcriptc.82G>A p.Asp28Asn missense_variant 3/42 NM_001025591.4 ENSP00000469876.1 Q4G0G5
SCGB2B2ENST00000379204.2 linkuse as main transcriptc.82G>A p.Asp28Asn missense_variant 2/31 ENSP00000368502.2 Q4G0G5
SCGB2B2ENST00000595326.1 linkuse as main transcriptn.373-740G>A intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000676
AC:
17
AN:
251322
Hom.:
0
AF XY:
0.0000810
AC XY:
11
AN XY:
135818
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000369
AC:
54
AN:
1461776
Hom.:
1
Cov.:
32
AF XY:
0.0000536
AC XY:
39
AN XY:
727166
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.000406
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74296
show subpopulations
Gnomad4 AFR
AF:
0.000338
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000195
Hom.:
0
Bravo
AF:
0.000189
ExAC
AF:
0.0000824
AC:
10

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 22, 2024The c.82G>A (p.D28N) alteration is located in exon 2 (coding exon 2) of the SCGB2B2 gene. This alteration results from a G to A substitution at nucleotide position 82, causing the aspartic acid (D) at amino acid position 28 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
Benign
0.095
BayesDel_addAF
Benign
-0.66
T
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.15
DANN
Benign
0.40
DEOGEN2
Benign
0.032
T;T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.00060
N
M_CAP
Benign
0.0019
T
MetaRNN
Benign
0.043
T;T
MetaSVM
Benign
-0.97
T
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-5.0
D;.
REVEL
Benign
0.079
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.0
B;B
Vest4
0.095
MVP
0.014
MPC
0.040
ClinPred
0.026
T
GERP RS
-0.093
Varity_R
0.38
gMVP
0.32

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.

Other links and lift over

dbSNP: rs191686683; hg19: chr19-35085244; COSMIC: COSV64857087; API