NM_004813.4:c.873T>G

Variant names:

• chr11-45913833-A-C
• rs1132349
• NM_004813.4:c.873T>G

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_004813.4(PEX16):​c.873T>G​(p.Tyr291*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. Y291Y) has been classified as Benign. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: PEX16 NM_004813.4 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.24
• Publications: 21 publications found

Genes affected

PEX16 (HGNC:8857): (peroxisomal biogenesis factor 16) The protein encoded by this gene is an integral peroxisomal membrane protein. An inactivating nonsense mutation localized to this gene was observed in a patient with Zellweger syndrome of the complementation group CGD/CG9. Expression of this gene product morphologically and biochemically restores the formation of new peroxisomes, suggesting a role in peroxisome organization and biogenesis. Alternative splicing has been observed for this gene and two variants have been described. [provided by RefSeq, Jul 2008]

PEX16 Gene-Disease associations (from GenCC):

• peroxisome biogenesis disorder

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• peroxisome biogenesis disorder 8A (Zellweger)

  Inheritance: AR Classification: DEFINITIVE, MODERATE Submitted by: G2P, Ambry Genetics
• peroxisome biogenesis disorder 8B

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
• Zellweger spectrum disorders

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PEX16	NM_004813.4	c.873T>G	p.Tyr291*	stop_gained	Exon 9 of 11	ENST00000378750.10	NP_004804.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PEX16	ENST00000378750.10	c.873T>G	p.Tyr291*	stop_gained	Exon 9 of 11	1	NM_004813.4	ENSP00000368024.5
PEX16	ENST00000241041.7	c.873T>G	p.Tyr291*	stop_gained	Exon 9 of 11	1		ENSP00000241041.3
PEX16	ENST00000532681.5	c.588T>G	p.Tyr196*	stop_gained	Exon 9 of 11	3		ENSP00000434654.1
PEX16	ENST00000533151.5	c.*12T>G		downstream_gene_variant		3		ENSP00000433045.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 55

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Uncertain	0.025	T
BayesDel_noAF	Benign	-0.20
CADD	Uncertain	23
DANN	Benign	0.84
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.20	N
PhyloP100		-1.2
Vest4		0.83
GERP RS		-10
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=16/184	disease causing (fs/PTC)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs1132349; hg19: chr11-45935384;