Genetic Variant CLCA4:p.Glu280Lys (chr1-86565904-G-A) – 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_012128.4(CLCA4):c.838G>A(p.Glu280Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000144 in 1,612,592 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00029 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

CLCA4
NM_012128.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.872

Publications

0 publications found

Variant links:

Genes affected

CLCA4 (HGNC:2018): (chloride channel accessory 4) The protein encoded by this gene belongs to the calcium sensitive chloride conductance protein family. To date, all members of this gene family map to the same site on chromosome 1p31-p22 and share high degrees of homology in size, sequence and predicted structure, but differ significantly in their tissue distributions. Alternative splicing results in multiple transcript variants, only one of which is thought to be protein coding. [provided by RefSeq, Dec 2008]

CLCA4 Gene-Disease associations (from GenCC):

cystic fibrosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CLCA4 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=0.113245636).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012128.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLCA4	NM_012128.4	MANE Select	c.838G>A	p.Glu280Lys	missense	Exon 6 of 14	NP_036260.2	Q14CN2-1
	CLCA4	NR_024602.2		n.771G>A		non_coding_transcript_exon	Exon 5 of 13

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CLCA4	ENST00000370563.3	TSL:1 MANE Select	c.838G>A	p.Glu280Lys	missense	Exon 6 of 14	ENSP00000359594.3	Q14CN2-1
CLCA4	ENST00000862142.1		c.838G>A	p.Glu280Lys	missense	Exon 6 of 14	ENSP00000532201.1
CLCA4	ENST00000862141.1		c.838G>A	p.Glu280Lys	missense	Exon 6 of 14	ENSP00000532200.1

Frequencies

GnomAD3 genomes

AF:

0.000289

AC:

AN:

152032

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00236

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:

0.0000736

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000124

AC:

AN:

249110

AF XY:

0.000104

show subpopulations

Gnomad AFR exome

AF:

0.0000647

Gnomad AMR exome

AF:

0.000406

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000133

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000129

AC:

188

AN:

1460560

Hom.:

Cov.:

AF XY:

0.000114

AC XY:

AN XY:

726616

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33442

American (AMR)

AF:

0.000269

AC:

AN:

44684

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.00

AC:

AN:

39678

South Asian (SAS)

AF:

0.00

AC:

AN:

86174

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000155

AC:

172

AN:

1110970

Other (OTH)

AF:

0.0000331

AC:

AN:

60356

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

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:

0.000289

AC:

AN:

152032

Hom.:

Cov.:

AF XY:

0.000417

AC XY:

AN XY:

74284

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41420

American (AMR)

AF:

0.00236

AC:

AN:

15254

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000736

AC:

AN:

67948

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

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:

0.000132

Hom.:

Bravo

AF:

0.000302

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000269

AC:

ESP6500EA

AF:

0.000122

AC:

ExAC

AF:

0.0000910

AC:

EpiCase

AF:

0.0000548

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.079

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.058

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.23

FATHMM_MKL

Benign

0.25

LIST_S2

Benign

0.80

M_CAP

Benign

0.0039

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.95

MutationAssessor

Pathogenic

3.1

PhyloP100

0.87

PrimateAI

Benign

0.40

PROVEAN

Benign

-1.8

REVEL

Benign

0.15

Sift

Benign

0.27

Sift4G

Benign

0.39

Polyphen

0.75

Vest4

0.17

MVP

0.18

MPC

0.10

ClinPred

0.10

GERP RS

5.2

Varity_R

0.081

gMVP

0.35

Mutation Taster

=87/13

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over