chr2-237493465-A-G

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_024101.7(MLPH):ā€‹c.39A>Gā€‹(p.Glu13=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000647 in 1,614,078 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.0035 ( 1 hom., cov: 32)
Exomes š‘“: 0.00035 ( 5 hom. )

Consequence

MLPH
NM_024101.7 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.0860
Variant links:
Genes affected
MLPH (HGNC:29643): (melanophilin) This gene encodes a member of the exophilin subfamily of Rab effector proteins. The protein forms a ternary complex with the small Ras-related GTPase Rab27A in its GTP-bound form and the motor protein myosin Va. A similar protein complex in mouse functions to tether pigment-producing organelles called melanosomes to the actin cytoskeleton in melanocytes, and is required for visible pigmentation in the hair and skin. A mutation in this gene results in Griscelli syndrome type 3, which is characterized by a silver-gray hair color and abnormal pigment distribution in the hair shaft. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
Variant 2-237493465-A-G is Benign according to our data. Variant chr2-237493465-A-G is described in ClinVar as [Benign]. Clinvar id is 723824.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.086 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00349 (531/152306) while in subpopulation AFR AF= 0.0121 (503/41574). AF 95% confidence interval is 0.0112. There are 1 homozygotes in gnomad4. There are 261 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MLPHNM_024101.7 linkuse as main transcriptc.39A>G p.Glu13= synonymous_variant 2/16 ENST00000264605.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MLPHENST00000264605.8 linkuse as main transcriptc.39A>G p.Glu13= synonymous_variant 2/161 NM_024101.7 A2Q9BV36-1

Frequencies

GnomAD3 genomes
AF:
0.00346
AC:
526
AN:
152188
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0120
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00151
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.00103
AC:
259
AN:
251496
Hom.:
0
AF XY:
0.000780
AC XY:
106
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.0143
Gnomad AMR exome
AF:
0.000665
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000352
AC:
514
AN:
1461772
Hom.:
5
Cov.:
31
AF XY:
0.000292
AC XY:
212
AN XY:
727188
show subpopulations
Gnomad4 AFR exome
AF:
0.0127
Gnomad4 AMR exome
AF:
0.000581
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.000795
GnomAD4 genome
AF:
0.00349
AC:
531
AN:
152306
Hom.:
1
Cov.:
32
AF XY:
0.00350
AC XY:
261
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.0121
Gnomad4 AMR
AF:
0.00150
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00237
Alfa
AF:
0.00194
Hom.:
0
Bravo
AF:
0.00400
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 24, 2023- -
MLPH-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 15, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.62
CADD
Benign
6.1
DANN
Benign
0.64

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.

Other links and lift over

dbSNP: rs77869297; hg19: chr2-238402108; API