NM_006214.4:c.*434A>G

Variant names:

• chr10-13277867-T-C
• rs1835323896
• NM_006214.4:c.*434A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006214.4(PHYH):​c.*434A>G variant causes a 3 prime UTR 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 30)
• Consequence: PHYH NM_006214.4 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.04
• Publications: 0 publications found

Genes affected

PHYH (HGNC:8940): (phytanoyl-CoA 2-hydroxylase) This gene is a member of the PhyH family and encodes a peroxisomal protein that is involved in the alpha-oxidation of 3-methyl branched fatty acids. Specifically, this protein converts phytanoyl-CoA to 2-hydroxyphytanoyl-CoA. Mutations in this gene have been associated with Refsum disease (RD) and deficient protein activity has been associated with Zellweger syndrome and rhizomelic chondrodysplasia punctata. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

PHYH Gene-Disease associations (from GenCC):

• adult Refsum disease

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), G2P, Laboratory for Molecular Medicine
• phytanoyl-CoA hydroxylase deficiency

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006214.4. 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
	PHYH	NM_006214.4	MANE Select	c.*434A>G		3_prime_UTR	Exon 9 of 9	NP_006205.1	O14832-1
	PHYH	NM_001323082.2		c.*434A>G		3_prime_UTR	Exon 9 of 9	NP_001310011.1
	PHYH	NM_001323083.2		c.*434A>G		3_prime_UTR	Exon 7 of 7	NP_001310012.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PHYH	ENST00000263038.9	TSL:1 MANE Select	c.*434A>G		3_prime_UTR	Exon 9 of 9	ENSP00000263038.4	O14832-1
	PHYH	ENST00000858006.1		c.*434A>G		3_prime_UTR	Exon 9 of 9	ENSP00000528065.1
	PHYH	ENST00000396920.7	TSL:5	c.*434A>G		3_prime_UTR	Exon 9 of 9	ENSP00000380126.3	B1ALH6

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 30

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Phytanic acid storage disease (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	5.3
DANN	Benign	0.37
PhyloP100		1.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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

Other links and lift over

dbSNP: rs1835323896; hg19: chr10-13319867;