3-134603670-G-T

Variant names:

• chr3-134603670-G-T
• rs527908164
• NM_178554.6:c.1895C>A

Variant summary

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

The NM_178554.6(KY):​c.1895C>A​(p.Ala632Asp) 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. 13/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A632G) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: KY NM_178554.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.65
• Publications: 1 publications found

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]

ENSG00000288700 (HGNC:):

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

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=0.25049257).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KY	NM_178554.6	MANE Select	c.1895C>A	p.Ala632Asp	missense	Exon 11 of 11	NP_848649.3
	KY	NM_001350859.2		c.1847C>A	p.Ala616Asp	missense	Exon 10 of 10	NP_001337788.1
	KY	NM_001366276.1		c.1832C>A	p.Ala611Asp	missense	Exon 10 of 10	NP_001353205.1	Q8NBH2-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KY	ENST00000423778.7	TSL:5 MANE Select	c.1895C>A	p.Ala632Asp	missense	Exon 11 of 11	ENSP00000397598.2	Q8NBH2-4
	KY	ENST00000503669.1	TSL:1	c.*777C>A		3_prime_UTR	Exon 10 of 10	ENSP00000426777.1	B4DGA7
	KY	ENST00000864999.1		c.1841C>A	p.Ala614Asp	missense	Exon 11 of 11	ENSP00000535058.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.055	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	22
DANN	Uncertain	0.99
Eigen	Benign	-0.017
Eigen_PC	Benign	-0.070
FATHMM_MKL	Benign	0.19	N
LIST_S2	Benign	0.83	T
M_CAP	Benign	0.0071	T
MetaRNN	Benign	0.25	T
MetaSVM	Benign	-1.1	T
PhyloP100		2.6
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.98	N
REVEL	Benign	0.13
Sift	Uncertain	0.021	D
Sift4G	Benign	0.099	T
Polyphen		0.90	P
Vest4		0.42
MutPred		0.58		Loss of glycosylation at S607 (P = 0.072)
MVP		0.50
MPC		0.31
ClinPred		0.55	D
GERP RS		4.6
gMVP		0.59
Mutation Taster		=93/7	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: rs527908164; hg19: chr3-134322512;