rs2239774

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_002872.5(RAC2):​c.81C>G​(p.Ala27Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.147 in 1,613,244 control chromosomes in the GnomAD database, including 18,204 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. A27A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.16 ( 2025 hom., cov: 33)
Exomes 𝑓: 0.15 ( 16179 hom. )

Consequence

RAC2
NM_002872.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 1.80

Publications

32 publications found
Variant links:
Genes affected
RAC2 (HGNC:9802): (Rac family small GTPase 2) This gene encodes a member of the Ras superfamily of small guanosine triphosphate (GTP)-metabolizing proteins. The encoded protein localizes to the plasma membrane, where it regulates diverse processes, such as secretion, phagocytosis, and cell polarization. Activity of this protein is also involved in the generation of reactive oxygen species. Mutations in this gene are associated with neutrophil immunodeficiency syndrome. There is a pseudogene for this gene on chromosome 6. [provided by RefSeq, Jul 2013]
RAC2 Gene-Disease associations (from GenCC):
  • immunodeficiency 73b with defective neutrophil chemotaxis and lymphopenia
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, ClinGen
  • immunodeficiency 73c with defective neutrophil chemotaxis and hypogammaglobulinemia
    Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
  • neutrophil immunodeficiency syndrome
    Inheritance: Unknown, AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 22-37241613-G-C is Benign according to our data. Variant chr22-37241613-G-C is described in ClinVar as Benign. ClinVar VariationId is 138865.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.8 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.258 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAC2NM_002872.5 linkc.81C>G p.Ala27Ala synonymous_variant Exon 2 of 7 ENST00000249071.11 NP_002863.1
RAC2XM_006724286.4 linkc.81C>G p.Ala27Ala synonymous_variant Exon 2 of 6 XP_006724349.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAC2ENST00000249071.11 linkc.81C>G p.Ala27Ala synonymous_variant Exon 2 of 7 1 NM_002872.5 ENSP00000249071.6

Frequencies

GnomAD3 genomes
AF:
0.158
AC:
24055
AN:
152100
Hom.:
2018
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.185
Gnomad AMI
AF:
0.159
Gnomad AMR
AF:
0.114
Gnomad ASJ
AF:
0.193
Gnomad EAS
AF:
0.269
Gnomad SAS
AF:
0.202
Gnomad FIN
AF:
0.142
Gnomad MID
AF:
0.203
Gnomad NFE
AF:
0.140
Gnomad OTH
AF:
0.166
GnomAD2 exomes
AF:
0.153
AC:
38543
AN:
251480
AF XY:
0.157
show subpopulations
Gnomad AFR exome
AF:
0.185
Gnomad AMR exome
AF:
0.0803
Gnomad ASJ exome
AF:
0.195
Gnomad EAS exome
AF:
0.276
Gnomad FIN exome
AF:
0.135
Gnomad NFE exome
AF:
0.143
Gnomad OTH exome
AF:
0.157
GnomAD4 exome
AF:
0.146
AC:
212904
AN:
1461022
Hom.:
16179
Cov.:
33
AF XY:
0.147
AC XY:
106966
AN XY:
726864
show subpopulations
African (AFR)
AF:
0.188
AC:
6281
AN:
33448
American (AMR)
AF:
0.0873
AC:
3904
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.191
AC:
4987
AN:
26120
East Asian (EAS)
AF:
0.225
AC:
8948
AN:
39690
South Asian (SAS)
AF:
0.181
AC:
15620
AN:
86234
European-Finnish (FIN)
AF:
0.133
AC:
7079
AN:
53412
Middle Eastern (MID)
AF:
0.181
AC:
1041
AN:
5764
European-Non Finnish (NFE)
AF:
0.140
AC:
155116
AN:
1111272
Other (OTH)
AF:
0.164
AC:
9928
AN:
60358
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.453
Heterozygous variant carriers
0
10073
20146
30218
40291
50364
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
5696
11392
17088
22784
28480
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.158
AC:
24081
AN:
152222
Hom.:
2025
Cov.:
33
AF XY:
0.159
AC XY:
11820
AN XY:
74428
show subpopulations
African (AFR)
AF:
0.185
AC:
7693
AN:
41518
American (AMR)
AF:
0.114
AC:
1745
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.193
AC:
668
AN:
3468
East Asian (EAS)
AF:
0.270
AC:
1396
AN:
5176
South Asian (SAS)
AF:
0.203
AC:
978
AN:
4828
European-Finnish (FIN)
AF:
0.142
AC:
1511
AN:
10612
Middle Eastern (MID)
AF:
0.197
AC:
58
AN:
294
European-Non Finnish (NFE)
AF:
0.140
AC:
9528
AN:
67994
Other (OTH)
AF:
0.170
AC:
359
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
1057
2114
3170
4227
5284
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
260
520
780
1040
1300
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.117
Hom.:
436
Bravo
AF:
0.159
Asia WGS
AF:
0.219
AC:
762
AN:
3478
EpiCase
AF:
0.150
EpiControl
AF:
0.152

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Neutrophil immunodeficiency syndrome Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nov 07, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not specified Benign:1
Jan 07, 2013
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

Immunodeficiency 73b with defective neutrophil chemotaxis and lymphopenia Benign:1
Nov 07, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Immunodeficiency 73c with defective neutrophil chemotaxis and hypogammaglobulinemia Benign:1
Nov 07, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Benign:1
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
13
DANN
Benign
0.67
PhyloP100
1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=274/26
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs2239774; hg19: chr22-37637653; COSMIC: COSV50774221; API