1-235810221-G-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_000081.4(LYST):c.597C>G(p.Asp199Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000416 in 1,614,052 control chromosomes in the GnomAD database, including 2 homozygotes. 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D199N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0022 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00023 ( 1 hom. )

Consequence

LYST
NM_000081.4 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.31

Publications

2 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 -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.004536569).

BP6

Variant 1-235810221-G-C is Benign according to our data. Variant chr1-235810221-G-C is described in ClinVar as Likely_benign. ClinVar VariationId is 525183.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 = 0.00219 (334/152248) while in subpopulation AFR AF = 0.00763 (317/41532). AF 95% confidence interval is 0.00694. There are 1 homozygotes in GnomAd4. There are 158 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000081.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LYST	NM_000081.4	MANE Select	c.597C>G	p.Asp199Glu	missense	Exon 5 of 53	NP_000072.2
	LYST	NM_001301365.1		c.597C>G	p.Asp199Glu	missense	Exon 5 of 53	NP_001288294.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
LYST	ENST00000389793.7	TSL:5 MANE Select	c.597C>G	p.Asp199Glu	missense	Exon 5 of 53	ENSP00000374443.2
LYST	ENST00000465349.5	TSL:1	n.1148C>G		non_coding_transcript_exon	Exon 5 of 12
LYST	ENST00000489585.5	TSL:1	n.597C>G		non_coding_transcript_exon	Exon 5 of 23	ENSP00000513166.1

Frequencies

GnomAD3 genomes

AF:

0.00216

AC:

328

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00751

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000786

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:

0.0000588

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000613

AC:

154

AN:

251194

AF XY:

0.000479

show subpopulations

Gnomad AFR exome

AF:

0.00849

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.000231

AC:

338

AN:

1461804

Hom.:

Cov.:

AF XY:

0.000190

AC XY:

138

AN XY:

727210

show subpopulations

African (AFR)

AF:

0.00843

AC:

282

AN:

33468

American (AMR)

AF:

0.000403

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111954

Other (OTH)

AF:

0.000497

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

109

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome 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

GnomAD4 genome

AF:

0.00219

AC:

334

AN:

152248

Hom.:

Cov.:

AF XY:

0.00212

AC XY:

158

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.00763

AC:

317

AN:

41532

American (AMR)

AF:

0.000785

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68026

Other (OTH)

AF:

0.000474

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

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:

0.000290

Hom.:

Bravo

AF:

0.00258

ESP6500AA

AF:

0.00817

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000782

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Apr 13, 2020

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Chédiak-Higashi syndrome

Benign:1

Feb 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Benign:1

Jan 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

LYST: BP4

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.62

BayesDel_noAF

Benign

-0.66

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.060

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.062

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.55

M_CAP

Benign

0.0042

MetaRNN

Benign

0.0045

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.90

PhyloP100

2.3

PrimateAI

Benign

0.22

PROVEAN

Benign

-0.53

REVEL

Benign

0.090

Sift

Benign

0.20

Sift4G

Benign

0.40

Polyphen

0.020

Vest4

0.21

MutPred

0.14

Gain of ubiquitination at K202 (P = 0.0882)

MVP

0.32

MPC

0.088

ClinPred

0.0090

GERP RS

4.8

Varity_R

0.083

gMVP

0.11

Mutation Taster

=100/0

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over