Genetic Variant NM_178554.6:c.1889G>A (chr3-134603676-C-T) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_178554.6(KY):c.1889G>A(p.Ser630Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000057 in 1,613,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

KY
NM_178554.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -0.0400

Publications

0 publications found

Variant links:

Genes affected

KY (HGNC:26576): (kyphoscoliosis peptidase) The protein encoded by this gene belongs to the transglutaminase-like superfamily. The protein is involved in the function, maturation and stabilization of the neuromuscular junction and may be required for normal muscle growth. Mutations in this gene are associated with myopathy, myofibrillar, 7. [provided by RefSeq, Apr 2017]

KY links:

ENSG00000288700 (HGNC:):

ENSG00000288700 links:

CEP63 (HGNC:25815): (centrosomal protein 63) This gene encodes a protein with six coiled-coil domains. The protein is localized to the centrosome, a non-membraneous organelle that functions as the major microtubule-organizing center in animal cells. Several alternatively spliced transcript variants have been found, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

CEP63 Gene-Disease associations (from GenCC):

Seckel syndrome 6
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
autosomal recessive primary microcephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CEP63 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05337432).

BP6

Variant 3-134603676-C-T is Benign according to our data. Variant chr3-134603676-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1037666.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0000853 (13/152350) while in subpopulation NFE AF = 0.000147 (10/68030). AF 95% confidence interval is 0.0000791. There are 0 homozygotes in GnomAd4. There are 7 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_178554.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KY	NM_178554.6	MANE Select	c.1889G>A	p.Ser630Asn	missense	Exon 11 of 11	NP_848649.3
KY	NM_001350859.2		c.1841G>A	p.Ser614Asn	missense	Exon 10 of 10	NP_001337788.1
KY	NM_001366276.1		c.1826G>A	p.Ser609Asn	missense	Exon 10 of 10	NP_001353205.1	Q8NBH2-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KY	ENST00000423778.7	TSL:5 MANE Select	c.1889G>A	p.Ser630Asn	missense	Exon 11 of 11	ENSP00000397598.2	Q8NBH2-4
KY	ENST00000503669.1	TSL:1	c.*771G>A		3_prime_UTR	Exon 10 of 10	ENSP00000426777.1	B4DGA7
KY	ENST00000864999.1		c.1835G>A	p.Ser612Asn	missense	Exon 11 of 11	ENSP00000535058.1

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000763

AC:

AN:

249030

AF XY:

0.0000444

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000465

Gnomad NFE exome

AF:

0.000115

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000541

AC:

AN:

1461472

Hom.:

Cov.:

AF XY:

0.0000440

AC XY:

AN XY:

726984

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.000179

AC:

AN:

44684

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86210

European-Finnish (FIN)

AF:

0.000150

AC:

AN:

53376

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000540

AC:

AN:

1111762

Other (OTH)

AF:

0.0000497

AC:

AN:

60366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000853

AC:

AN:

152350

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74502

show subpopulations

African (AFR)

AF:

0.0000240

AC:

AN:

41584

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68030

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

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:

0.000101

Hom.:

Bravo

AF:

0.0000680

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000744

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.79

CADD

Benign

8.3

(source)

DANN

Benign

0.71

Eigen

Benign

-0.66

Eigen_PC

Benign

-0.55

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.71

M_CAP

Benign

0.0016

MetaRNN

Benign

0.053

MetaSVM

Benign

-0.94

PhyloP100

-0.040

PrimateAI

Benign

0.39

PROVEAN

Benign

0.10

REVEL

Benign

0.15

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.11

MVP

0.31

MPC

0.14

ClinPred

0.012

GERP RS

-2.0

gMVP

0.15

Mutation Taster

=97/3

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over