rs28940268

Positions:

• chr2-214986563-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1 PM2 PP3_Strong PP5

The NM_173076.3(ABCA12):​c.4142G>A​(p.Gly1381Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ABCA12 NM_173076.3 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.91

Genes affected

ABCA12 (HGNC:14637): (ATP binding cassette subfamily A member 12) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, and White). This encoded protein is a member of the ABC1 subfamily, which is the only major ABC subfamily found exclusively in multicellular eukaryotes. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jul 2008]

ABCA12 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PM1: In a domain ABC transporter 1 (size 231) in uniprot entity ABCAC_HUMAN there are 9 pathogenic changes around while only 2 benign (82%) in NM_173076.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.994
• PP5: Variant 2-214986563-C-T is Pathogenic according to our data. Variant chr2-214986563-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 2854.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr2-214986563-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ABCA12	NM_173076.3	c.4142G>A	p.Gly1381Glu	missense_variant	28/53	ENST00000272895.12	NP_775099.2
ABCA12	NM_015657.4	c.3188G>A	p.Gly1063Glu	missense_variant	20/45		NP_056472.2
ABCA12	XM_011510951.3	c.4151G>A	p.Gly1384Glu	missense_variant	28/53		XP_011509253.1
ABCA12	NR_103740.2	n.4640G>A		non_coding_transcript_exon_variant	30/55

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ABCA12	ENST00000272895.12	c.4142G>A	p.Gly1381Glu	missense_variant	28/53	1	NM_173076.3	ENSP00000272895.7
ABCA12	ENST00000389661.4	c.3188G>A	p.Gly1063Glu	missense_variant	20/45	1		ENSP00000374312.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Autosomal recessive congenital ichthyosis 4A Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 15, 2003

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.58	D
BayesDel_noAF	Pathogenic	0.59
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D;.
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	1.0	D;D
M_CAP	Pathogenic	0.77	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Pathogenic	0.90	D
MutationAssessor	Pathogenic	4.4	H;.
PrimateAI	Pathogenic	0.90	D
PROVEAN	Pathogenic	-7.5	D;D
REVEL	Pathogenic	0.97
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	D;D
Vest4		0.99
MutPred		0.96		Gain of sheet (P = 0.0827);.;
MVP		0.96
MPC		0.84
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.98
gMVP		0.96

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

Publications

LitVar

Other links and lift over

dbSNP: rs28940268; hg19: chr2-215851287;