chr7-87700511-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001134405.2(RUNDC3B):​c.329G>A​(p.Cys110Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,460,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

RUNDC3B
NM_001134405.2 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.41
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 Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.32504797).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RUNDC3BNM_001134405.2 linkuse as main transcriptc.329G>A p.Cys110Tyr missense_variant 3/11 ENST00000394654.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RUNDC3BENST00000394654.4 linkuse as main transcriptc.329G>A p.Cys110Tyr missense_variant 3/112 NM_001134405.2 P1Q96NL0-5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000359
AC:
9
AN:
250700
Hom.:
0
AF XY:
0.0000369
AC XY:
5
AN XY:
135518
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000262
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:
0.00000548
AC:
8
AN:
1460956
Hom.:
0
Cov.:
30
AF XY:
0.00000550
AC XY:
4
AN XY:
726784
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000157
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000151
ExAC
AF:
0.0000330
AC:
4

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 GeneticsDec 16, 2022The c.380G>A (p.C127Y) alteration is located in exon 4 (coding exon 4) of the RUNDC3B gene. This alteration results from a G to A substitution at nucleotide position 380, causing the cysteine (C) at amino acid position 127 to be replaced by a tyrosine (Y). 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
0.21
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.34
CADD
Uncertain
24
DANN
Benign
0.97
DEOGEN2
Benign
0.17
T;.;.
Eigen
Uncertain
0.21
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.93
D;D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.33
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-2.0
N;N;N
REVEL
Benign
0.21
Sift
Benign
0.17
T;T;T
Sift4G
Benign
0.22
T;T;T
Polyphen
0.44
B;P;.
Vest4
0.60
MutPred
0.33
Loss of helix (P = 0.0237);.;.;
MVP
0.47
MPC
0.55
ClinPred
0.21
T
GERP RS
5.2
Varity_R
0.39
gMVP
0.59

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: rs751080320; hg19: chr7-87329827; API