NM_054027.6:c.916-271A>G

Variant names:

• chr5-14742193-T-C
• rs153931
• NM_054027.6:c.916-271A>G

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_054027.6(ANKH):​c.916-271A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.349 in 152,076 control chromosomes in the GnomAD database, including 11,474 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency: Genomes: 𝑓 0.35 (11474 hom., cov: 32)
• Consequence: ANKH NM_054027.6 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -1.87
• Publications: 3 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: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BP6: Variant 5-14742193-T-C is Benign according to our data. Variant chr5-14742193-T-C is described in ClinVar as Benign. ClinVar VariationId is 1247050.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.61 is higher than 0.05.

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.916-271A>G		intron	N/A	NP_473368.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANKH	ENST00000284268.8	TSL:1 MANE Select	c.916-271A>G		intron	N/A	ENSP00000284268.6
	ANKH	ENST00000503939.5	TSL:3	n.428-271A>G		intron	N/A
	ANKH	ENST00000515517.1	TSL:3	n.150-271A>G		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.349 AC: 52991 AN: 151958 Hom.: 11437 Cov.: 32

Gnomad AFR AF: 0.616

Gnomad AMI AF: 0.259

Gnomad AMR AF: 0.304

Gnomad ASJ AF: 0.213

Gnomad EAS AF: 0.131

Gnomad SAS AF: 0.0918

Gnomad FIN AF: 0.246

Gnomad MID AF: 0.206

Gnomad NFE AF: 0.256

Gnomad OTH AF: 0.330

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.349 AC: 53079 AN: 152076 Hom.: 11474 Cov.: 32 AF XY: 0.341 AC XY: 25329 AN XY: 74328

African (AFR) AF: 0.617 AC: 25573 AN: 41468

American (AMR) AF: 0.304 AC: 4640 AN: 15288

Ashkenazi Jewish (ASJ) AF: 0.213 AC: 738 AN: 3470

East Asian (EAS) AF: 0.131 AC: 676 AN: 5148

South Asian (SAS) AF: 0.0912 AC: 440 AN: 4824

European-Finnish (FIN) AF: 0.246 AC: 2603 AN: 10596

Middle Eastern (MID) AF: 0.211 AC: 62 AN: 294

European-Non Finnish (NFE) AF: 0.256 AC: 17423 AN: 67972

Other (OTH) AF: 0.327 AC: 688 AN: 2104

Alfa AF: 0.308 Hom.: 1088

Bravo AF: 0.372

Asia WGS AF: 0.160 AC: 559 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

Nov 05, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.048
DANN	Benign	0.35
PhyloP100		-1.9
Mutation Taster		=100/0	polymorphism (auto)

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: rs153931; hg19: chr5-14742302; COSMIC: COSV107315471;