NM_002872.5:c.545C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 1P and 3B. PP2BP4_ModerateBP6

The NM_002872.5(RAC2):c.545C>T(p.Thr182Met) variant causes a missense change. The variant allele was found at a frequency of 0.000131 in 1,613,078 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T182A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

RAC2
NM_002872.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 3.86

Publications

0 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)

RAC2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 5 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 2.592 (below the threshold of 3.09). Trascript score misZ: 2.9101 (below the threshold of 3.09). GenCC associations: The gene is linked to immunodeficiency 73c with defective neutrophil chemotaxis and hypogammaglobulinemia, immunodeficiency 73b with defective neutrophil chemotaxis and lymphopenia, neutrophil immunodeficiency syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.074037075).

BP6

Variant 22-37226707-G-A is Benign according to our data. Variant chr22-37226707-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 577450.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAC2	NM_002872.5 link	c.545C>T	p.Thr182Met	missense_variant	Exon 6 of 7	ENST00000249071.11	NP_002863.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAC2	ENST00000249071.11 link	c.545C>T	p.Thr182Met	missense_variant	Exon 6 of 7	1	NM_002872.5	ENSP00000249071.6

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152028

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000967

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000120

AC:

AN:

249900

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000932

Gnomad NFE exome

AF:

0.000115

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.000130

AC:

190

AN:

1460932

Hom.:

Cov.:

AF XY:

0.000131

AC XY:

AN XY:

726784

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44662

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26090

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.000348

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.0000565

AC:

AN:

53056

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000134

AC:

149

AN:

1111600

Other (OTH)

AF:

0.000116

AC:

AN:

60348

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000145

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74370

show subpopulations

African (AFR)

AF:

0.0000964

AC:

AN:

41486

American (AMR)

AF:

0.0000654

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.000622

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000191

AC:

AN:

67962

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000384

Hom.:

Bravo

AF:

0.000113

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000298

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Neutrophil immunodeficiency syndrome

Uncertain:1Benign:1

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 28, 2019

Mendelics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Uncertain:1

Nov 18, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.545C>T (p.T182M) alteration is located in exon 6 (coding exon 6) of the RAC2 gene. This alteration results from a C to T substitution at nucleotide position 545, causing the threonine (T) at amino acid position 182 to be replaced by a methionine (M). 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

-0.24

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.41

T;T;T

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.036

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.69

T;T;T

M_CAP

Benign

0.023

MetaRNN

Benign

0.074

T;T;T

MetaSVM

Benign

-0.93

MutationAssessor

Benign

1.8

L;.;.

PhyloP100

3.9

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.47

N;N;N

REVEL

Benign

0.11

Sift

Benign

0.088

T;T;T

Sift4G

Uncertain

0.059

T;T;T

Polyphen

0.10

B;.;.

Vest4

0.27

MVP

0.63

MPC

0.078

ClinPred

0.031

GERP RS

3.9

Varity_R

0.017

gMVP

0.47

Mutation Taster

=67/33

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over