chr1-235734607-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000081.4(LYST):c.8411G>A(p.Gly2804Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0071 in 1,612,852 control chromosomes in the GnomAD database, including 680 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. G2804G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.037 ( 352 hom., cov: 32)

Exomes 𝑓: 0.0040 ( 328 hom. )

Consequence

LYST
NM_000081.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 2.46

Publications

7 publications found

Variant links:

Genes affected

LYST (HGNC:1968): (lysosomal trafficking regulator) This gene encodes a protein that regulates intracellular protein trafficking in endosomes, and may be involved in pigmentation. Mutations in this gene are associated with Chediak-Higashi syndrome, a lysosomal storage disorder. Alternative splicing results in multiple transcript variants, though the full-length nature of some of these variants has not been determined. [provided by RefSeq, Apr 2013]

LYST Gene-Disease associations (from GenCC):

Chediak-Higashi syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae), G2P
attenuated Chédiak-Higashi syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

LYST links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0012811124).

BP6

Variant 1-235734607-C-T is Benign according to our data. Variant chr1-235734607-C-T is described in ClinVar as Benign. ClinVar VariationId is 254941.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.126 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LYST	NM_000081.4 link	c.8411G>A	p.Gly2804Asp	missense_variant	Exon 32 of 53	ENST00000389793.7	NP_000072.2	Q99698-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LYST	ENST00000389793.7 link	c.8411G>A	p.Gly2804Asp	missense_variant	Exon 32 of 53	5	NM_000081.4	ENSP00000374443.2		Q99698-1

Frequencies

GnomAD3 genomes

AF:

0.0371

AC:

5647

AN:

152052

Hom.:

351

Cov.:

show subpopulations

Gnomad AFR

AF:

0.129

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0140

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000559

Gnomad OTH

AF:

0.0216

GnomAD2 exomes

AF:

0.0101

AC:

2531

AN:

251142

AF XY:

0.00754

show subpopulations

Gnomad AFR exome

AF:

0.136

Gnomad AMR exome

AF:

0.00651

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000546

Gnomad OTH exome

AF:

0.00588

GnomAD4 exome

AF:

0.00396

AC:

5788

AN:

1460682

Hom.:

328

Cov.:

AF XY:

0.00341

AC XY:

2479

AN XY:

726628

show subpopulations

African (AFR)

AF:

0.132

AC:

4423

AN:

33436

American (AMR)

AF:

0.00745

AC:

333

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26118

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39650

South Asian (SAS)

AF:

0.000290

AC:

AN:

86118

European-Finnish (FIN)

AF:

0.0000749

AC:

AN:

53376

Middle Eastern (MID)

AF:

0.00850

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.000313

AC:

348

AN:

1111176

Other (OTH)

AF:

0.0100

AC:

604

AN:

60332

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

243

486

728

971

1214

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

134

268

402

536

670

<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:

0.0372

AC:

5667

AN:

152170

Hom.:

352

Cov.:

AF XY:

0.0354

AC XY:

2631

AN XY:

74390

show subpopulations

African (AFR)

AF:

0.129

AC:

5367

AN:

41498

American (AMR)

AF:

0.0140

AC:

214

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000559

AC:

AN:

67984

Other (OTH)

AF:

0.0213

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

245

490

734

979

1224

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

112

168

224

280

<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:

0.0132

Hom.:

267

Bravo

AF:

0.0432

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.120

AC:

527

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.0124

AC:

1506

Asia WGS

AF:

0.0130

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Chédiak-Higashi syndrome

Benign:2

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Jul 14, 2019

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Autoinflammatory syndrome

Benign:1

Feb 25, 2022

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.058

BayesDel_addAF

Benign

-0.69

BayesDel_noAF

Benign

-0.64

CADD

Benign

(source)

DANN

Benign

0.70

DEOGEN2

Benign

0.044

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.16

MetaRNN

Benign

0.0013

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.8

PhyloP100

2.5

PrimateAI

Benign

0.41

PROVEAN

Benign

3.7

REVEL

Benign

0.090

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.21

ClinPred

0.0014

GERP RS

2.7

Varity_R

0.036

gMVP

0.18

Mutation Taster

=100/0

polymorphism (auto)

(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