rs193921102

Variant names:

• chr7-5065058-A-T
• rs193921102
• NM_021163.4:c.1602A>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_021163.4(RBAK):​c.1602A>T​(p.Lys534Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: RBAK NM_021163.4 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: -0.407
• Publications: 3 publications found

Genes affected

RBAK (HGNC:17680): (RB associated KRAB zinc finger) This gene encodes a nuclear protein which interacts with the tumor suppressor retinoblastoma 1. The two interacting proteins are thought to act as a transcriptional repressor for promoters which are activated by the E2F1 transcription factor. This protein contains a Kruppel-associated box (KRAB), which is a transcriptional repressor motif. Read-through transcripts that include exons from the downstream gene LOC389458 are expressed from this locus. [provided by RefSeq, Mar 2011]

RBAK-RBAKDN (HGNC:42971): (RBAK-RBAKDN readthrough) This locus represents naturally occurring read-through transcription between the neighboring RBAK (RB-associated KRAB zinc finger) and LOC389458 (hypothetical LOC389458) genes on chromosome 7. The read-through transcript encodes a protein that shares sequence identity with the upstream gene product but its C-terminal region is distinct due to frameshifts relative to the downstream gene. [provided by RefSeq, Mar 2011]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08316234).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBAK	NM_021163.4	c.1602A>T	p.Lys534Asn	missense_variant	Exon 5 of 5	ENST00000396912.2	NP_066986.1
RBAK	NM_001204456.2	c.1602A>T	p.Lys534Asn	missense_variant	Exon 6 of 6		NP_001191385.1
RBAK-RBAKDN	NM_001204513.3	c.238+7279A>T		intron_variant	Intron 4 of 5		NP_001191442.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBAK	ENST00000396912.2	c.1602A>T	p.Lys534Asn	missense_variant	Exon 5 of 5	1	NM_021163.4	ENSP00000380120.1
RBAK-RBAKDN	ENST00000407184.5	c.299+1303A>T		intron_variant	Intron 6 of 7	2		ENSP00000385560.1
RBAK	ENST00000353796.7	c.1602A>T	p.Lys534Asn	missense_variant	Exon 6 of 6	2		ENSP00000275423.4
RBAK-RBAKDN	ENST00000396904.2	c.238+7279A>T		intron_variant	Intron 4 of 5	4		ENSP00000380112.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Prostate cancer Uncertain:1

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Science for Life laboratory, Karolinska Institutet

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.70
CADD	Benign	19
DANN	Uncertain	1.0
DEOGEN2	Benign	0.022	T;T
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.13
FATHMM_MKL	Benign	0.0051	N
LIST_S2	Benign	0.45	.;T
M_CAP	Benign	0.0038	T
MetaRNN	Benign	0.083	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.41	N;N
PhyloP100		-0.41
PrimateAI	Benign	0.35	T
PROVEAN	Benign	0.24	N;N
REVEL	Benign	0.073
Sift	Uncertain	0.012	D;D
Sift4G	Uncertain	0.033	D;D
Polyphen		0.089	B;B
Vest4		0.13
MutPred		0.38		Loss of methylation at K534 (P = 0.0085);Loss of methylation at K534 (P = 0.0085);
MVP		0.43
MPC		0.095
ClinPred		0.49	T
GERP RS		3.8
Varity_R		0.092
gMVP		0.025
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs193921102; hg19: chr7-5104689; COSMIC: COSV62330968; COSMIC: COSV62330968;