NM_054027.6:c.-4G>T

Variant names:

• chr5-14871451-C-A
• rs78431233
• NM_054027.6:c.-4G>T

Variant summary

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

The NM_054027.6(ANKH):​c.-4G>T variant causes a 5 prime UTR change. The variant allele was found at a frequency of 0.000000685 in 1,459,300 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: ANKH NM_054027.6 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.72
• Publications: 11 publications found

Genes affected

ANKH (HGNC:15492): (ANKH inorganic pyrophosphate transport regulator) This gene encodes a multipass transmembrane protein that is expressed in joints and other tissues and controls pyrophosphate levels in cultured cells. Progressive ankylosis-mediated control of pyrophosphate levels has been suggested as a possible mechanism regulating tissue calcification and susceptibility to arthritis in higher animals. Mutations in this gene have been associated with autosomal dominant craniometaphyseal dysplasia. [provided by RefSeq, Jul 2008]

ANKH Gene-Disease associations (from GenCC):

• chondrocalcinosis 2

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
• craniometaphyseal dysplasia, autosomal dominant

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
• skeletal dysplasia

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• craniometaphyseal dysplasia

  Inheritance: AD 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 (BayesDel_noAF=-0.45).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_054027.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANKH	NM_054027.6	MANE Select	c.-4G>T		5_prime_UTR	Exon 1 of 12	NP_473368.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANKH	ENST00000284268.8	TSL:1 MANE Select	c.-4G>T		5_prime_UTR	Exon 1 of 12	ENSP00000284268.6
	ANKH	ENST00000505140.1	TSL:5	n.-4G>T		non_coding_transcript_exon	Exon 1 of 2	ENSP00000426332.1
	ANKH	ENST00000513115.1	TSL:2	n.22G>T		non_coding_transcript_exon	Exon 1 of 2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000405 AC: 1 AN: 247074 AF XY: 0.00000745

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: 0.00000902

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459300 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726020

African (AFR) AF: 0.00 AC: 0 AN: 33416

American (AMR) AF: 0.00 AC: 0 AN: 44658

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26076

East Asian (EAS) AF: 0.00 AC: 0 AN: 39640

South Asian (SAS) AF: 0.00 AC: 0 AN: 86200

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52848

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5680

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1110588

Other (OTH) AF: 0.00 AC: 0 AN: 60194

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.45
CADD	Benign	22
DANN	Benign	0.66
PhyloP100		3.7
PromoterAI		-0.078	Neutral

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: rs78431233; hg19: chr5-14871560;