2-219210235-C-T

Variant names:

• chr2-219210235-C-T
• rs1574808120
• NM_005689.4:c.2415G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_005689.4(ABCB6):​c.2415G>A​(p.Arg805Arg) variant causes a synonymous 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 Likely benign (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ABCB6 NM_005689.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.0990
• Publications: 0 publications found

Genes affected

ABCB6 (HGNC:47): (ATP binding cassette subfamily B member 6 (LAN blood group)) This gene encodes a member of the ATP-binding cassette (ABC) transporter superfamily. ABC proteins transport various molecules across extra- and intra-cellular membranes. This protein is a member of the heavy metal importer subfamily and plays a role in porphyrin transport. This gene is the molecular basis of the Langereis (Lan) blood group antigen and mutations in this gene underlie familial pseudohyperkalemia and dyschromatosis universalis hereditaria. [provided by RefSeq, Mar 2017]

ABCB6 Gene-Disease associations (from GenCC):

• dyschromatosis universalis hereditaria 3

  Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
• dyschromatosis universalis hereditaria

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial pseudohyperkalemia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• microphthalmia, isolated, with coloboma

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• microphthalmia, isolated, with coloboma 7

  Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, ClinGen

ENSG00000284820 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (REVEL=0.169).
• BP6: Variant 2-219210235-C-T is Benign according to our data. Variant chr2-219210235-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 740242.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.099 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005689.4. 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
	ABCB6	NM_005689.4	MANE Select	c.2415G>A	p.Arg805Arg	synonymous	Exon 18 of 19	NP_005680.1	Q9NP58-1
	ABCB6	NM_001349828.2		c.2277G>A	p.Arg759Arg	synonymous	Exon 17 of 18	NP_001336757.1	Q9NP58-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCB6	ENST00000265316.9	TSL:1 MANE Select	c.2415G>A	p.Arg805Arg	synonymous	Exon 18 of 19	ENSP00000265316.3	Q9NP58-1
	ENSG00000284820	ENST00000446716.5	TSL:2	n.*4199G>A		non_coding_transcript_exon	Exon 21 of 22	ENSP00000398528.1	H7C152
	ENSG00000284820	ENST00000446716.5	TSL:2	n.*4199G>A		3_prime_UTR	Exon 21 of 22	ENSP00000398528.1	H7C152

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.37
CADD	Benign	9.1
DANN	Benign	0.88
PhyloP100		0.099
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		2.7
Mutation Taster		=97/3	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs1574808120; hg19: chr2-220074957;