Genetic Variant NM_004388.3:c.716A>G (chr1-84563814-T-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004388.3(CTBS):c.716A>G(p.Lys239Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,160 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CTBS
NM_004388.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.468

Publications

0 publications found

Variant links:

Genes affected

CTBS (HGNC:2496): (chitobiase) Chitobiase is a lysosomal glycosidase involved in degradation of asparagine-linked oligosaccharides on glycoproteins (Aronson and Kuranda, 1989 [PubMed 2531691]).[supplied by OMIM, Nov 2010]

CTBS links:

SPATA1 (HGNC:14682): (spermatogenesis associated 1)

SPATA1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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=0.07523173).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004388.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CTBS	NM_004388.3	MANE Select	c.716A>G	p.Lys239Arg	missense	Exon 5 of 7	NP_004379.1	Q01459
	SPATA1	NM_001397487.1	MANE Select	c.1295-2047T>C		intron	N/A	NP_001384416.1	A0A8V8TNU4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CTBS	ENST00000370630.6	TSL:1 MANE Select	c.716A>G	p.Lys239Arg	missense	Exon 5 of 7	ENSP00000359664.4	Q01459
SPATA1	ENST00000699524.1	MANE Select	c.1295-2047T>C		intron	N/A	ENSP00000514414.1	A0A8V8TNU4
CTBS	ENST00000477677.5	TSL:1	n.572A>G		non_coding_transcript_exon	Exon 4 of 6

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

248822

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1455200

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

723982

African (AFR)

AF:

0.00

AC:

AN:

33328

American (AMR)

AF:

0.00

AC:

AN:

44150

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25968

East Asian (EAS)

AF:

0.00

AC:

AN:

39342

South Asian (SAS)

AF:

0.00

AC:

AN:

85262

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53112

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108270

Other (OTH)

AF:

0.00

AC:

AN:

60044

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74320

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.75

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.079

Eigen

Benign

-0.72

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.54

M_CAP

Benign

0.0053

MetaRNN

Benign

0.075

MetaSVM

Benign

-0.90

MutationAssessor

Benign

0.91

PhyloP100

0.47

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.94

REVEL

Benign

0.028

Sift

Benign

0.21

Sift4G

Benign

0.39

Polyphen

0.025

Vest4

0.087

MVP

0.21

MPC

0.055

ClinPred

0.11

GERP RS

2.1

Varity_R

0.033

gMVP

0.60

Mutation Taster

=89/11

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over