chr13-41192762-G-C

Position:

• chr13-41192762-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2 PP3_Moderate BP6

The NM_032138.7(KBTBD7):​c.1496C>G​(p.Pro499Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

• Frequency: Genomes: not found (cov: 31)
• Consequence: KBTBD7 NM_032138.7 missense
• Clinical Significance: Likely benign no assertion criteria provided B:1
• Conservation: PhyloP100: 8.35

Genes affected

KBTBD7 (HGNC:25266): (kelch repeat and BTB domain containing 7) The protein encoded by this gene is a transcriptional activator, having been shown to increase the transcription of activator protein-1 and serum response element. The encoded protein can also form a complex with KBTBD6 and CUL3, which regulates the ubiquitylation and degradation of TIAM1, which is a regulator of RAC1. [provided by RefSeq, Jul 2016]

KBTBD6-DT (HGNC:56824): (KBTBD6 divergent transcript)

LOC101929140 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.901
• BP6: Variant 13-41192762-G-C is Benign according to our data. Variant chr13-41192762-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 254108.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KBTBD7	NM_032138.7	c.1496C>G	p.Pro499Arg	missense_variant	1/1	ENST00000379483.4
LOC101929140	NR_120423.1	n.350+30359G>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KBTBD7	ENST00000379483.4	c.1496C>G	p.Pro499Arg	missense_variant	1/1		NM_032138.7	P1
KBTBD6-DT	ENST00000619407.4	n.339+30359G>C		intron_variant, non_coding_transcript_variant		2
KBTBD6-DT	ENST00000615685.4	n.442G>C		non_coding_transcript_exon_variant	4/4	4
KBTBD6-DT	ENST00000661006.1	n.245+30359G>C		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

Submissions by phenotype

Oromandibular-limb hypogenesis spectrum Benign:1

Likely benign, no assertion criteria provided

research

CHU Sainte-Justine Research Center, University of Montreal

Aug 12, 2016

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.37	T
Eigen	Pathogenic	0.76
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.062	D
MetaRNN	Pathogenic	0.90	D
MetaSVM	Uncertain	-0.022	T
MutationAssessor	Uncertain	2.3	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.68	T
PROVEAN	Pathogenic	-6.8	D
REVEL	Pathogenic	0.83
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.76
MutPred		0.71		Gain of catalytic residue at P499 (P = 0.0055);
MVP		0.93
MPC		1.8
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.80
gMVP		0.93

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

Other links and lift over

dbSNP: rs754048481; hg19: chr13-41766898;