Genetic Variant ACKR1:p.Asn244Ser (chr1-159206170-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002036.4(ACKR1):c.731A>G(p.Asn244Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,614,094 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

ACKR1
NM_002036.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.746

Variant links:

Genes affected

ACKR1 (HGNC:4035): (atypical chemokine receptor 1 (Duffy blood group)) The protein encoded by this gene is a glycosylated membrane protein and a non-specific receptor for several chemokines. The encoded protein is the receptor for the human malarial parasites Plasmodium vivax and Plasmodium knowlesi. Polymorphisms in this gene are the basis of the Duffy blood group system. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACKR1 links:

CADM3-AS1 (HGNC:40812): (CADM3 antisense RNA 1)

CADM3-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.053729266).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACKR1	NM_002036.4 link	c.731A>G	p.Asn244Ser	missense_variant	Exon 2 of 2	ENST00000368122.4	NP_002027.2	Q16570-1Q5Y7A2
ACKR1	NM_001122951.3 link	c.737A>G	p.Asn246Ser	missense_variant	Exon 2 of 2		NP_001116423.1	Q16570-2Q5Y7A1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ACKR1	ENST00000368122.4 link	c.731A>G	p.Asn244Ser	missense_variant	Exon 2 of 2	1	NM_002036.4	ENSP00000357104.1	Q16570-1
ACKR1	ENST00000368121.6 link	c.737A>G	p.Asn246Ser	missense_variant	Exon 2 of 2	6		ENSP00000357103.2	Q16570-2
ACKR1	ENST00000435307.2 link	n.912A>G		non_coding_transcript_exon_variant	Exon 1 of 1	3
CADM3-AS1	ENST00000609696.1 link	n.164+1640T>C		intron_variant	Intron 1 of 1	5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

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:

0.0000274

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.737A>G (p.N246S) alteration is located in exon 1 (coding exon 1) of the ACKR1 gene. This alteration results from a A to G substitution at nucleotide position 737, causing the asparagine (N) at amino acid position 246 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.59

CADD

Benign

1.2

DANN

Benign

0.62

DEOGEN2

Benign

0.084

T;T;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.054

LIST_S2

Benign

0.72

T;.;T

M_CAP

Benign

0.0055

MetaRNN

Benign

0.054

T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.46

N;N;.

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.0

N;N;N

REVEL

Benign

0.027

Sift

Benign

0.32

T;T;T

Sift4G

Benign

0.40

T;T;T

Polyphen

0.11

B;B;.

Vest4

0.076

MutPred

0.35

Loss of catalytic residue at N244 (P = 0.087);Loss of catalytic residue at N244 (P = 0.087);.;

MVP

0.23

MPC

0.026

ClinPred

0.27

GERP RS

-1.2

Varity_R

0.028

gMVP

0.089

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over