chr7-20727129-G-C

Variant names:

• chr7-20727129-G-C
• rs35885925
• NM_001163941.2:c.2715G>C

Variant summary

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

The NM_001163941.2(ABCB5):​c.2715G>C​(p.Gln905His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,612,520 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Benign in ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: ABCB5 NM_001163941.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.26
• Publications: 7 publications found

Genes affected

ABCB5 (HGNC:46): (ATP binding cassette subfamily B member 5) ABCB5 belongs to the ATP-binding cassette (ABC) transporter superfamily of integral membrane proteins. These proteins participate in ATP-dependent transmembrane transport of structurally diverse molecules ranging from small ions, sugars, and peptides to more complex organic molecules (Chen et al., 2005 [PubMed 15760339]).[supplied by OMIM, Mar 2008]

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 (MetaRNN=0.16055107).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001163941.2. 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
	ABCB5	NM_001163941.2	MANE Select	c.2715G>C	p.Gln905His	missense	Exon 22 of 28	NP_001157413.1	Q2M3G0-4
	ABCB5	NM_178559.6		c.1380G>C	p.Gln460His	missense	Exon 13 of 19	NP_848654.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCB5	ENST00000404938.7	TSL:1 MANE Select	c.2715G>C	p.Gln905His	missense	Exon 22 of 28	ENSP00000384881.2	Q2M3G0-4
	ABCB5	ENST00000258738.10	TSL:1	c.1380G>C	p.Gln460His	missense	Exon 13 of 19	ENSP00000258738.6	Q2M3G0-1
	ABCB5	ENST00000441315.1	TSL:2	n.216G>C		non_coding_transcript_exon	Exon 2 of 8	ENSP00000398692.1	H7C165

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152158 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1460362 Hom.: 0 Cov.: 29 AF XY: 0.00000551 AC XY: 4 AN XY: 726600

African (AFR) AF: 0.00 AC: 0 AN: 33424

American (AMR) AF: 0.00 AC: 0 AN: 44680

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39612

South Asian (SAS) AF: 0.00 AC: 0 AN: 86198

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53276

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1110968

Other (OTH) AF: 0.00 AC: 0 AN: 60336

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152158 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74330

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41434

American (AMR) AF: 0.00 AC: 0 AN: 15266

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4838

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2094

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 79

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	17
DANN	Benign	0.91
DEOGEN2	Benign	0.16	T
Eigen	Benign	-0.36
Eigen_PC	Benign	-0.31
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Benign	0.077	T
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.34	T
MutationAssessor	Benign	1.8	L
PhyloP100		1.3
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-1.8	N
REVEL	Benign	0.20
Sift	Benign	0.14	T
Sift4G	Benign	0.12	T
Vest4		0.23
MutPred		0.41		Loss of MoRF binding (P = 0.1756)
MVP		0.40
MPC		0.0075
ClinPred		0.13	T
GERP RS		1.6
Varity_R		0.13
gMVP		0.30
Mutation Taster		=92/8	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs35885925; hg19: chr7-20766752;