5-122077751-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_002317.7(LOX):c.235G>A(p.Ala79Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000425 in 1,562,440 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A79A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00045 ( 0 hom. )

Consequence

LOX
NM_002317.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 0.319

Publications

2 publications found

Variant links:

Genes affected

LOX (HGNC:6664): (lysyl oxidase) This gene encodes a member of the lysyl oxidase family of proteins. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate a regulatory propeptide and the mature enzyme. The copper-dependent amine oxidase activity of this enzyme functions in the crosslinking of collagens and elastin, while the propeptide may play a role in tumor suppression. In addition, defects in this gene have been linked with predisposition to thoracic aortic aneurysms and dissections. [provided by RefSeq, Jul 2016]

LOX links:

SRFBP1 (HGNC:26333): (serum response factor binding protein 1) Enables RNA binding activity. Predicted to be involved in maturation of SSU-rRNA. Predicted to be located in perinuclear region of cytoplasm. Predicted to be part of 90S preribosome. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

SRFBP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.036512703).

BP6

Variant 5-122077751-C-T is Benign according to our data. Variant chr5-122077751-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 521345.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000151 (23/152130) while in subpopulation NFE AF = 0.000294 (20/68012). AF 95% confidence interval is 0.000194. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 23 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LOX	NM_002317.7 link	c.235G>A	p.Ala79Thr	missense_variant	Exon 1 of 7	ENST00000231004.5	NP_002308.2
SRFBP1	XM_017009111.3 link	c.*2426C>T		3_prime_UTR_variant	Exon 8 of 8		XP_016864600.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LOX	ENST00000231004.5 link	c.235G>A	p.Ala79Thr	missense_variant	Exon 1 of 7	1	NM_002317.7	ENSP00000231004.4
LOX	ENST00000639739.2 link	n.235G>A		non_coding_transcript_exon_variant	Exon 1 of 6	5		ENSP00000492324.2

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000164

AC:

AN:

158608

AF XY:

0.000148

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:

0.00

Gnomad NFE exome

AF:

0.000401

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000455

AC:

641

AN:

1410310

Hom.:

Cov.:

AF XY:

0.000402

AC XY:

281

AN XY:

698184

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32196

American (AMR)

AF:

0.00

AC:

AN:

37862

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25272

East Asian (EAS)

AF:

0.00

AC:

AN:

37310

South Asian (SAS)

AF:

0.00

AC:

AN:

81556

European-Finnish (FIN)

AF:

0.0000244

AC:

AN:

41000

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5650

European-Non Finnish (NFE)

AF:

0.000573

AC:

625

AN:

1090834

Other (OTH)

AF:

0.000256

AC:

AN:

58630

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

117

156

195

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:

0.000151

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41444

American (AMR)

AF:

0.0000654

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5152

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.000294

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

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:

0.000117

Hom.:

Bravo

AF:

0.000155

ExAC

AF:

0.000215

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

May 28, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Identified in two families with thoracic aortic aneurysms (TAA), one of whom harbored an additional disease-causing variant in the ACTA2 gene; authors report p.(A79T) as likely benign (PMID: 26838787); In silico analysis suggests that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 26838787) -

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Uncertain:1

Apr 01, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: LOX c.235G>A (p.Ala79Thr) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00016 in 158608 control chromosomes. The observed variant frequency is approximately 99-fold of the estimated maximal expected allele frequency for a pathogenic variant in LOX causing Aortopathy phenotype (1.7e-06), suggesting that the variant could be benign. c.235G>A has been reported in the literature in at least one individual affected with familial thoracic aortic aneurysms and dissections with a reported alternate disease-causing ACTA2 mutation (e.g. Guo_2017). This report does not provide unequivocal conclusions about association of the variant with Aortopathy. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. ClinVar contains an entry for this variant (Variation ID: 521345). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Acute aortic dissection;C0345050:Congenital aneurysm of ascending aorta

Benign:1

Jan 12, 2016

University of Washington Center for Mendelian Genomics, University of Washington

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:research

- -

Cardiovascular phenotype

Benign:1

Dec 13, 2023

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.72

CADD

Benign

3.0

(source)

DANN

Benign

0.87

DEOGEN2

Benign

0.22

T;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.033

LIST_S2

Benign

0.46

.;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.037

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.0

N;N

PhyloP100

0.32

PrimateAI

Pathogenic

0.79

PROVEAN

Benign

-0.93

N;.

REVEL

Benign

0.024

Sift

Benign

0.076

T;.

Sift4G

Benign

0.71

T;.

Polyphen

0.0

B;B

Vest4

0.10

MVP

0.15

MPC

0.52

ClinPred

0.027

GERP RS

-0.81

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.046

gMVP

0.36

Mutation Taster

=98/2

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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