6-31507126-C-T

Position:

chr6-31507126-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005931.5(MICB):c.718C>T(p.Arg240Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,984 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

MICB
NM_005931.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.311

Variant links:

Genes affected

MICB (HGNC:7091): (MHC class I polypeptide-related sequence B) This gene encodes a heavily glycosylated protein which is a ligand for the NKG2D type II receptor. Binding of the ligand activates the cytolytic response of natural killer (NK) cells, CD8 alphabeta T cells, and gammadelta T cells which express the receptor. This protein is stress-induced and is similar to MHC class I molecules; however, it does not associate with beta-2-microglobulin or bind peptides. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

MICB links:

MICB (HGNC:):

MICB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17283553).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MICB	NM_005931.5 linkuse as main transcript	c.718C>T	p.Arg240Cys	missense_variant	4/6	ENST00000252229.7	NP_005922.2	Q29980-1A0A7D9H7X8
MICB	NM_001289160.2 linkuse as main transcript	c.622C>T	p.Arg208Cys	missense_variant	4/6		NP_001276089.1	Q29980F5H7Q8B7Z8M1B4DUT9
MICB	NM_001289161.2 linkuse as main transcript	c.589C>T	p.Arg197Cys	missense_variant	4/6		NP_001276090.1	Q29980-2A0A0G2JHB5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
MICB	ENST00000252229.7 linkuse as main transcript	c.718C>T	p.Arg240Cys	missense_variant	4/6	1	NM_005931.5	ENSP00000252229.6	Q29980-1
MICB	ENST00000399150.7 linkuse as main transcript	c.589C>T	p.Arg197Cys	missense_variant	4/6	1		ENSP00000382103.3	Q29980-2
MICB	ENST00000538442.5 linkuse as main transcript	c.622C>T	p.Arg208Cys	missense_variant	4/6	2		ENSP00000442345.1	F5H7Q8
MICB	ENST00000494577.1 linkuse as main transcript	n.601C>T		non_coding_transcript_exon_variant	2/3	3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249454

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135352

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000752

AC:

AN:

1461830

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000899

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74316

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

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 submitter

clinical testing

Ambry Genetics

Dec 19, 2022

The c.718C>T (p.R240C) alteration is located in exon 4 (coding exon 4) of the MICB gene. This alteration results from a C to T substitution at nucleotide position 718, causing the arginine (R) at amino acid position 240 to be replaced by a cysteine (C). 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

0.18

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.14

T;T;.

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.014

M_CAP

Benign

0.0036

MetaRNN

Benign

0.17

T;T;T

MetaSVM

Benign

-1.1

PrimateAI

Benign

0.22

PROVEAN

Benign

-1.9

N;N;N

REVEL

Benign

0.082

Sift

Uncertain

0.026

D;D;D

Sift4G

Benign

0.18

T;T;T

Polyphen

1.0

D;.;.

Vest4

0.19

MutPred

0.55

.;.;Loss of MoRF binding (P = 0.0093);

MVP

0.40

MPC

1.1

ClinPred

0.41

GERP RS

0.86

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.31

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over