7-87710575-A-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001134405.2(RUNDC3B):​c.378A>T​(p.Arg126Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000707 in 1,414,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

RUNDC3B
NM_001134405.2 missense

Scores

9
8
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54
Variant links:
Genes affected
RUNDC3B (HGNC:30286): (RUN domain containing 3B)
ABCB1 (HGNC:40): (ATP binding cassette subfamily B member 1) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance. The protein encoded by this gene is an ATP-dependent drug efflux pump for xenobiotic compounds with broad substrate specificity. It is responsible for decreased drug accumulation in multidrug-resistant cells and often mediates the development of resistance to anticancer drugs. This protein also functions as a transporter in the blood-brain barrier. Mutations in this gene are associated with colchicine resistance and Inflammatory bowel disease 13. Alternative splicing and the use of alternative promoters results in multiple transcript variants. [provided by RefSeq, Feb 2017]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.973

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RUNDC3BNM_001134405.2 linkuse as main transcriptc.378A>T p.Arg126Ser missense_variant 4/11 ENST00000394654.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RUNDC3BENST00000394654.4 linkuse as main transcriptc.378A>T p.Arg126Ser missense_variant 4/112 NM_001134405.2 P1Q96NL0-5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000425
AC:
1
AN:
235174
Hom.:
0
AF XY:
0.00000784
AC XY:
1
AN XY:
127526
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000597
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:
7.07e-7
AC:
1
AN:
1414040
Hom.:
0
Cov.:
24
AF XY:
0.00000142
AC XY:
1
AN XY:
704112
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000258
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

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 GeneticsJun 06, 2023The c.429A>T (p.R143S) alteration is located in exon 5 (coding exon 5) of the RUNDC3B gene. This alteration results from a A to T substitution at nucleotide position 429, causing the arginine (R) at amino acid position 143 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
Pathogenic
1.0
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
T;.;.
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Uncertain
0.099
D
MetaRNN
Pathogenic
0.97
D;D;D
MetaSVM
Benign
-0.57
T
MutationAssessor
Pathogenic
3.4
M;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-5.7
D;D;D
REVEL
Uncertain
0.64
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.94
MutPred
0.93
Loss of MoRF binding (P = 0.0217);.;.;
MVP
0.61
MPC
0.72
ClinPred
0.99
D
GERP RS
5.7
Varity_R
0.94
gMVP
0.95

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.

Other links and lift over

dbSNP: rs769745143; hg19: chr7-87339891; API