Genetic Variant NM_001172779.2:c.745A>C (chr3-169800667-T-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001172779.2(LRRC34):c.745A>C(p.Ser249Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000407 in 1,527,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00043 ( 0 hom. )

Consequence

LRRC34
NM_001172779.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.68

Publications

77 publications found

Variant links:

Genes affected

LRRC34 (HGNC:28408): (leucine rich repeat containing 34) Predicted to be involved in cell differentiation. Predicted to be located in cytoplasm and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

LRRC34 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.092829436).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRRC34	NM_001172779.2 link	c.745A>C	p.Ser249Arg	missense_variant	Exon 7 of 11	ENST00000446859.7	NP_001166250.1	Q8IZ02-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRRC34	ENST00000446859.7 link	c.745A>C	p.Ser249Arg	missense_variant	Exon 7 of 11	2	NM_001172779.2	ENSP00000414635.1		Q8IZ02-2

Frequencies

GnomAD3 genomes

AF:

0.000178

AC:

AN:

151986

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000309

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000181

AC:

AN:

132890

AF XY:

0.000138

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000832

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000421

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000433

AC:

595

AN:

1375412

Hom.:

Cov.:

AF XY:

0.000455

AC XY:

309

AN XY:

679158

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31386

American (AMR)

AF:

0.0000850

AC:

AN:

35314

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25114

East Asian (EAS)

AF:

0.00

AC:

AN:

35542

South Asian (SAS)

AF:

0.00

AC:

AN:

78534

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33870

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5188

European-Non Finnish (NFE)

AF:

0.000537

AC:

576

AN:

1072916

Other (OTH)

AF:

0.000278

AC:

AN:

57548

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

112

140

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

112

140

<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:

0.000178

AC:

AN:

151986

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74244

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41346

American (AMR)

AF:

0.0000655

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10576

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000309

AC:

AN:

67986

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

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:

0.00000179

Hom.:

26576

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.0000669

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.28

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.57

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0018

T;.

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.41

FATHMM_MKL

Benign

0.58

LIST_S2

Benign

0.29

T;T

M_CAP

Benign

0.029

MetaRNN

Benign

0.093

T;T

MetaSVM

Benign

-0.75

PhyloP100

2.7

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-3.2

D;D

REVEL

Benign

0.051

Sift

Benign

0.033

D;D

Sift4G

Benign

0.12

T;T

Polyphen

0.71

.;P

Vest4

0.26

MutPred

0.27

.;Gain of catalytic residue at S188 (P = 0.0484);

MVP

0.46

MPC

0.24

ClinPred

0.19

GERP RS

3.4

Varity_R

0.23

gMVP

0.63

Mutation Taster

=99/1

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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

Computational scores

Splicing

Publications

Other links and lift over