1-235777232-C-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000081.4(LYST):c.5291G>C(p.Gly1764Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000691 in 1,613,520 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1764D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0037 ( 4 hom., cov: 31)

Exomes 𝑓: 0.00038 ( 3 hom. )

Consequence

LYST
NM_000081.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 7.42

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 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=0.005696267).

BP6

Variant 1-235777232-C-G is Benign according to our data. Variant chr1-235777232-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 254926.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00369 (562/152184) while in subpopulation AFR AF = 0.0126 (525/41528). AF 95% confidence interval is 0.0117. There are 4 homozygotes in GnomAd4. There are 249 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position FAILED quality control check.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LYST	NM_000081.4 link	c.5291G>C	p.Gly1764Ala	missense_variant	Exon 17 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.5291G>C	p.Gly1764Ala	missense_variant	Exon 17 of 53	5	NM_000081.4	ENSP00000374443.2		Q99698-1

Frequencies

GnomAD3 genomes

AF:

0.00368

AC:

559

AN:

152066

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0126

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00177

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:

0.0000882

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00104

AC:

261

AN:

251038

AF XY:

0.000759

show subpopulations

Gnomad AFR exome

AF:

0.0133

Gnomad AMR exome

AF:

0.000781

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000970

Gnomad OTH exome

AF:

0.000980

GnomAD4 exome

AF:

0.000378

AC:

553

AN:

1461336

Hom.:

Cov.:

AF XY:

0.000294

AC XY:

214

AN XY:

727020

show subpopulations

Gnomad4 AFR exome

AF:

0.0125

AC:

419

AN:

33460

Gnomad4 AMR exome

AF:

0.000917

AC:

AN:

44722

Gnomad4 ASJ exome

AF:

0.00

AC:

AN:

26122

Gnomad4 EAS exome

AF:

0.00

AC:

AN:

39596

Gnomad4 SAS exome

AF:

0.0000464

AC:

AN:

86242

Gnomad4 FIN exome

AF:

0.00

AC:

AN:

53408

Gnomad4 NFE exome

AF:

0.0000270

AC:

AN:

1111660

Gnomad4 Remaining exome

AF:

0.000828

AC:

AN:

60364

Heterozygous variant carriers

123

154

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00369

AC:

562

AN:

152184

Hom.:

Cov.:

AF XY:

0.00335

AC XY:

249

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.0126

AC:

0.0126421

AN:

0.0126421

Gnomad4 AMR

AF:

0.00177

AC:

0.00176632

AN:

0.00176632

Gnomad4 ASJ

AF:

0.00

AC:

AN:

Gnomad4 EAS

AF:

0.00

AC:

AN:

Gnomad4 SAS

AF:

0.00

AC:

AN:

Gnomad4 FIN

AF:

0.00

AC:

AN:

Gnomad4 NFE

AF:

0.0000882

AC:

0.0000882457

AN:

0.0000882457

Gnomad4 OTH

AF:

0.00189

AC:

0.00189394

AN:

0.00189394

Heterozygous variant carriers

120

150

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Genome Het

Genome Hom

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:

0.000291

Hom.:

Bravo

AF:

0.00440

ESP6500AA

AF:

0.0123

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00133

AC:

162

Asia WGS

AF:

0.00116

AC:

AN:

3474

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Feb 13, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Chédiak-Higashi syndrome

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autoinflammatory syndrome

Benign:1

Apr 26, 2022

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

MetaRNN

Benign

0.0057

MetaSVM

Benign

-0.73

MutationAssessor

Uncertain

2.4

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.6

REVEL

Benign

0.17

Sift

Benign

0.13

Sift4G

Uncertain

0.0070

Polyphen

0.89

Vest4

0.44

MVP

0.63

ClinPred

0.022

GERP RS

5.4

Varity_R

0.25

gMVP

0.46

Mutation Taster

=82/18

polymorphism

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over