chr6-31530467-G-GC

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BA1

The NM_004640.7(DDX39B):​c.1271-18_1271-17insG variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.113 in 1,612,418 control chromosomes in the GnomAD database, including 11,986 homozygotes. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.099 ( 857 hom., cov: 29)
Exomes 𝑓: 0.11 ( 11129 hom. )

Consequence

DDX39B
NM_004640.7 splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.396
Variant links:
Genes affected
DDX39B (HGNC:13917): (DExD-box helicase 39B) This gene encodes a member of the DEAD box family of RNA-dependent ATPases that mediate ATP hydrolysis during pre-mRNA splicing. The encoded protein is an essential splicing factor required for association of U2 small nuclear ribonucleoprotein with pre-mRNA, and it also plays an important role in mRNA export from the nucleus to the cytoplasm. This gene belongs to a cluster of genes localized in the vicinity of the genes encoding tumor necrosis factor alpha and tumor necrosis factor beta. These genes are all within the human major histocompatibility complex class III region. Mutations in this gene may be associated with rheumatoid arthritis. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on both chromosomes 6 and 11. Read-through transcription also occurs between this gene and the upstream ATP6V1G2 (ATPase, H+ transporting, lysosomal 13kDa, V1 subunit G2) gene. [provided by RefSeq, Feb 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.113 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DDX39BNM_004640.7 linkuse as main transcriptc.1271-18_1271-17insG splice_polypyrimidine_tract_variant, intron_variant ENST00000396172.6 NP_004631.1
ATP6V1G2-DDX39BNR_037853.1 linkuse as main transcriptn.2074-18_2074-17insG splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant
DDX39BNM_080598.6 linkuse as main transcriptc.1271-18_1271-17insG splice_polypyrimidine_tract_variant, intron_variant NP_542165.1
DDX39BNR_037852.2 linkuse as main transcriptn.1236-18_1236-17insG splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DDX39BENST00000396172.6 linkuse as main transcriptc.1271-18_1271-17insG splice_polypyrimidine_tract_variant, intron_variant 1 NM_004640.7 ENSP00000379475 P1Q13838-1

Frequencies

GnomAD3 genomes
AF:
0.0994
AC:
15107
AN:
151992
Hom.:
855
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.115
Gnomad AMI
AF:
0.168
Gnomad AMR
AF:
0.0437
Gnomad ASJ
AF:
0.0429
Gnomad EAS
AF:
0.0629
Gnomad SAS
AF:
0.0377
Gnomad FIN
AF:
0.0811
Gnomad MID
AF:
0.0253
Gnomad NFE
AF:
0.115
Gnomad OTH
AF:
0.0724
GnomAD3 exomes
AF:
0.0813
AC:
20014
AN:
246126
Hom.:
1077
AF XY:
0.0800
AC XY:
10729
AN XY:
134168
show subpopulations
Gnomad AFR exome
AF:
0.114
Gnomad AMR exome
AF:
0.0298
Gnomad ASJ exome
AF:
0.0401
Gnomad EAS exome
AF:
0.0887
Gnomad SAS exome
AF:
0.0394
Gnomad FIN exome
AF:
0.0792
Gnomad NFE exome
AF:
0.108
Gnomad OTH exome
AF:
0.0723
GnomAD4 exome
AF:
0.114
AC:
166961
AN:
1460308
Hom.:
11129
Cov.:
33
AF XY:
0.112
AC XY:
81109
AN XY:
726490
show subpopulations
Gnomad4 AFR exome
AF:
0.115
Gnomad4 AMR exome
AF:
0.0318
Gnomad4 ASJ exome
AF:
0.0436
Gnomad4 EAS exome
AF:
0.0404
Gnomad4 SAS exome
AF:
0.0416
Gnomad4 FIN exome
AF:
0.0834
Gnomad4 NFE exome
AF:
0.130
Gnomad4 OTH exome
AF:
0.105
GnomAD4 genome
AF:
0.0994
AC:
15113
AN:
152110
Hom.:
857
Cov.:
29
AF XY:
0.0947
AC XY:
7042
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.115
Gnomad4 AMR
AF:
0.0436
Gnomad4 ASJ
AF:
0.0429
Gnomad4 EAS
AF:
0.0630
Gnomad4 SAS
AF:
0.0379
Gnomad4 FIN
AF:
0.0811
Gnomad4 NFE
AF:
0.115
Gnomad4 OTH
AF:
0.0716
Alfa
AF:
0.101
Hom.:
212
Bravo
AF:
0.0979
Asia WGS
AF:
0.0520
AC:
180
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs9281523; hg19: chr6-31498244; API