6-50021884-G-A

Variant summary

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

The NM_001037497.2(DEFB110):​c.52C>T​(p.Pro18Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000231 in 1,551,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00024 ( 0 hom. )

Consequence

DEFB110
NM_001037497.2 missense

Scores

1
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.04
Variant links:
Genes affected
DEFB110 (HGNC:18091): (defensin beta 110) Defensins form a family of antimicrobial and cytotoxic peptides made by neutrophils. Defensins are short, processed peptide molecules that are classified by structure into three groups: alpha-defensins, beta-defensins and theta-defensins. All beta-defensin genes are densely clustered in four to five syntenic chromosomal regions. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2014]

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=0.038404077).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DEFB110NM_001037497.2 linkuse as main transcriptc.52C>T p.Pro18Ser missense_variant 1/2 ENST00000371148.3 NP_001032586.1 Q30KQ9-1
DEFB110NM_001037728.2 linkuse as main transcriptc.52C>T p.Pro18Ser missense_variant 1/2 NP_001032817.1 Q30KQ9-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DEFB110ENST00000371148.3 linkuse as main transcriptc.52C>T p.Pro18Ser missense_variant 1/21 NM_001037497.2 ENSP00000360190.2 Q30KQ9-1
DEFB110ENST00000393660.2 linkuse as main transcriptc.52C>T p.Pro18Ser missense_variant 1/21 ENSP00000377270.2 Q30KQ9-2

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
151914
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:
0.0000948
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000412
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000418
AC:
81
AN:
193670
Hom.:
0
AF XY:
0.000366
AC XY:
39
AN XY:
106498
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000507
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000960
Gnomad NFE exome
AF:
0.000800
Gnomad OTH exome
AF:
0.000467
GnomAD4 exome
AF:
0.000236
AC:
330
AN:
1399162
Hom.:
0
Cov.:
30
AF XY:
0.000210
AC XY:
146
AN XY:
694740
show subpopulations
Gnomad4 AFR exome
AF:
0.000103
Gnomad4 AMR exome
AF:
0.0000660
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000171
Gnomad4 NFE exome
AF:
0.000279
Gnomad4 OTH exome
AF:
0.000208
GnomAD4 genome
AF:
0.000191
AC:
29
AN:
151914
Hom.:
0
Cov.:
32
AF XY:
0.000189
AC XY:
14
AN XY:
74182
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:
0.0000948
Gnomad4 NFE
AF:
0.000412
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000396
Hom.:
0
Bravo
AF:
0.000162
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000527
AC:
64

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 GeneticsFeb 16, 2023The c.52C>T (p.P18S) alteration is located in exon 1 (coding exon 1) of the DEFB110 gene. This alteration results from a C to T substitution at nucleotide position 52, causing the proline (P) at amino acid position 18 to be replaced by a serine (S). 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
0.11
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
18
DANN
Benign
0.94
DEOGEN2
Benign
0.25
.;T
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.42
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.44
T;T
M_CAP
Benign
0.0041
T
MetaRNN
Benign
0.038
T;T
MetaSVM
Benign
-0.94
T
PrimateAI
Benign
0.35
T
PROVEAN
Pathogenic
-4.8
D;D
REVEL
Benign
0.024
Sift
Benign
0.076
T;T
Sift4G
Benign
0.23
T;T
Polyphen
0.012
B;B
Vest4
0.54
MVP
0.055
MPC
0.0022
ClinPred
0.056
T
GERP RS
2.8
Varity_R
0.078
gMVP
0.42

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: rs199802995; hg19: chr6-49989597; COSMIC: COSV64484339; API