NM_003661.4:c.63T>G

Variant names:

• chr22-36257101-T-G
• rs540252132
• NM_003661.4:c.63T>G

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_Strong BP6_Moderate BP7

The NM_003661.4(APOL1):​c.63T>G​(p.Leu21Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,614,128 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.00026 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000015 (0 hom.)
• Consequence: APOL1 NM_003661.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.04
• Publications: 0 publications found

Genes affected

APOL1 (HGNC:618): (apolipoprotein L1) This gene encodes a secreted high density lipoprotein which binds to apolipoprotein A-I. Apolipoprotein A-I is a relatively abundant plasma protein and is the major apoprotein of HDL. It is involved in the formation of most cholesteryl esters in plasma and also promotes efflux of cholesterol from cells. This apolipoprotein L family member may play a role in lipid exchange and transport throughout the body, as well as in reverse cholesterol transport from peripheral cells to the liver. Several different transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2008]

APOL1 Gene-Disease associations (from GenCC):

• focal segmental glomerulosclerosis 4, susceptibility to

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -7 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BP6: Variant 22-36257101-T-G is Benign according to our data. Variant chr22-36257101-T-G is described in ClinVar as Likely_benign. ClinVar VariationId is 2173012.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-1.04 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003661.4. 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
	APOL1	NM_003661.4	MANE Select	c.63T>G	p.Leu21Leu	synonymous	Exon 3 of 6	NP_003652.2
	APOL1	NM_145343.3		c.111T>G	p.Leu37Leu	synonymous	Exon 4 of 7	NP_663318.1	O14791-2
	APOL1	NM_001136540.2		c.63T>G	p.Leu21Leu	synonymous	Exon 3 of 6	NP_001130012.1	O14791-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APOL1	ENST00000397278.8	TSL:1 MANE Select	c.63T>G	p.Leu21Leu	synonymous	Exon 3 of 6	ENSP00000380448.4	O14791-1
	APOL1	ENST00000319136.8	TSL:1	c.111T>G	p.Leu37Leu	synonymous	Exon 4 of 7	ENSP00000317674.4	O14791-2
	APOL1	ENST00000438034.6	TSL:4	c.150T>G	p.Leu50Leu	synonymous	Exon 4 of 7	ENSP00000404525.2	B1AH94

Frequencies

GnomAD3 genomes AF: 0.000263 AC: 40 AN: 152142 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000821

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000393

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000597 AC: 15 AN: 251364 AF XY: 0.0000515

Gnomad AFR exome AF: 0.000677

Gnomad AMR exome AF: 0.000116

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000150 AC: 22 AN: 1461868 Hom.: 0 Cov.: 31 AF XY: 0.0000179 AC XY: 13 AN XY: 727236

African (AFR) AF: 0.000358 AC: 12 AN: 33480

American (AMR) AF: 0.000112 AC: 5 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112002

Other (OTH) AF: 0.0000828 AC: 5 AN: 60394

GnomAD4 genome AF: 0.000263 AC: 40 AN: 152260 Hom.: 0 Cov.: 32 AF XY: 0.000309 AC XY: 23 AN XY: 74446

African (AFR) AF: 0.000818 AC: 34 AN: 41556

American (AMR) AF: 0.000392 AC: 6 AN: 15302

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10612

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68000

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.000238

ClinVar

ClinVar submissions

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	-0.91
CADD	Benign	0.18
DANN	Benign	0.41
PhyloP100		-1.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.19		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: rs540252132; hg19: chr22-36653147;