2-237510595-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_024101.7(MLPH):​c.132G>A​(p.Lys44=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00251 in 1,613,430 control chromosomes in the GnomAD database, including 146 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0048 ( 17 hom., cov: 33)
Exomes 𝑓: 0.0023 ( 129 hom. )

Consequence

MLPH
NM_024101.7 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.43
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 2-237510595-G-A is Benign according to our data. Variant chr2-237510595-G-A is described in ClinVar as [Benign]. Clinvar id is 778284.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-237510595-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=1.43 with no splicing effect.
BA1
GnomAdExome4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0618 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MLPHNM_024101.7 linkuse as main transcriptc.132G>A p.Lys44= synonymous_variant 3/16 ENST00000264605.8 NP_077006.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MLPHENST00000264605.8 linkuse as main transcriptc.132G>A p.Lys44= synonymous_variant 3/161 NM_024101.7 ENSP00000264605 A2Q9BV36-1

Frequencies

GnomAD3 genomes
AF:
0.00479
AC:
729
AN:
152216
Hom.:
16
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0422
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000770
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.00621
GnomAD3 exomes
AF:
0.00981
AC:
2458
AN:
250618
Hom.:
100
AF XY:
0.00735
AC XY:
998
AN XY:
135708
show subpopulations
Gnomad AFR exome
AF:
0.00155
Gnomad AMR exome
AF:
0.0664
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00265
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000124
Gnomad OTH exome
AF:
0.00719
GnomAD4 exome
AF:
0.00226
AC:
3306
AN:
1461096
Hom.:
129
Cov.:
31
AF XY:
0.00201
AC XY:
1461
AN XY:
726844
show subpopulations
Gnomad4 AFR exome
AF:
0.000687
Gnomad4 AMR exome
AF:
0.0637
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00269
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000881
Gnomad4 OTH exome
AF:
0.00171
GnomAD4 genome
AF:
0.00484
AC:
737
AN:
152334
Hom.:
17
Cov.:
33
AF XY:
0.00564
AC XY:
420
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00111
Gnomad4 AMR
AF:
0.0427
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000772
Gnomad4 SAS
AF:
0.00166
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.00615
Alfa
AF:
0.000610
Hom.:
0
Bravo
AF:
0.00749
Asia WGS
AF:
0.00520
AC:
18
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000178

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 22, 2024- -
MLPH-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 30, 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
-0.48
CADD
Benign
9.2
DANN
Benign
0.67

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: rs145091337; hg19: chr2-238419238; API