11-71837543-C-G

Position:

chr11-71837543-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000328698.2(DEFB108B):c.203C>G(p.Thr68Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,611,128 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 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

DEFB108B
ENST00000328698.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.52

Variant links:

Genes affected

DEFB108B (HGNC:29966): (defensin beta 108B) 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. A pseudogene of this gene has been found on chromosome 8. [provided by RefSeq, Oct 2014]

DEFB108B links:

XNDC1N-ZNF705EP-ALG1L9P (HGNC:55871): (XNDC1N-ZNF705EP-ALG1L9P readthrough) This locus represents naturally occurring readthrough transcription between the neighboring XNDC1N (XRCC1 N-terminal domain containing 1-like), ZNF705P (zinc finger protein 705, pseudogene) and ALG1L9P (ALG1 like 9, pseudogene) genes on chromosome 11q13.4. These readthrough transcripts are candidates for nonsense-mediated mRNA decay (NMD), and are unlikely to produce a protein product. [provided by RefSeq, Aug 2021]

XNDC1N-ZNF705EP-ALG1L9P links:

DEFB108B (HGNC:):

DEFB108B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08544248).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DEFB108B	NM_001002035.2 linkuse as main transcript	c.203C>G	p.Thr68Ser	missense_variant	2/2	ENST00000328698.2	NP_001002035.1	Q8NET1
XNDC1N-ZNF705EP-ALG1L9P	NR_172893.1 linkuse as main transcript	n.708-10916G>C		intron_variant
XNDC1N-ZNF705EP-ALG1L9P	NR_172894.1 linkuse as main transcript	n.875-15996G>C		intron_variant
XNDC1N-ZNF705EP-ALG1L9P	NR_172895.1 linkuse as main transcript	n.1000-15996G>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DEFB108B	ENST00000328698.2 linkuse as main transcript	c.203C>G	p.Thr68Ser	missense_variant	2/2	1	NM_001002035.2	ENSP00000333234.1		Q8NET1
XNDC1N-ZNF705EP-ALG1L9P	ENST00000696863.1 linkuse as main transcript	n.700-10916G>C		intron_variant				ENSP00000512936.1		A0A8Q3WLN7

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249858

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135140

show subpopulations

Gnomad AFR exome

AF:

0.000186

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1458958

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

725738

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

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:

0.00

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74334

show subpopulations

Gnomad4 AFR

AF:

0.000121

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000756

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

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 submitter

clinical testing

Ambry Genetics

Mar 11, 2024

The c.203C>G (p.T68S) alteration is located in exon 2 (coding exon 2) of the DEFB108B gene. This alteration results from a C to G substitution at nucleotide position 203, causing the threonine (T) at amino acid position 68 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

0.13

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.62

CADD

Benign

DANN

Benign

0.72

DEOGEN2

Benign

0.0043

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.88

FATHMM_MKL

Benign

0.021

LIST_S2

Benign

0.37

M_CAP

Benign

0.0033

MetaRNN

Benign

0.085

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-2.9

REVEL

Benign

0.071

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.24

Vest4

0.28

MutPred

0.070

Loss of glycosylation at S67 (P = 0.0587);

MVP

0.085

MPC

0.80

ClinPred

0.58

GERP RS

1.5

Varity_R

0.17

gMVP

0.16

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over