16-57248570-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PM5PP3

The NM_012106.4(ARL2BP):ā€‹c.134T>Cā€‹(p.Met45Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M45R) has been classified as Uncertain significance.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)

Consequence

ARL2BP
NM_012106.4 missense

Scores

8
7
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.67
Variant links:
Genes affected
ARL2BP (HGNC:17146): (ADP ribosylation factor like GTPase 2 binding protein) ADP-ribosylation factor (ARF)-like proteins (ARLs) comprise a functionally distinct group of the ARF family of RAS-related GTPases. The protein encoded by this gene binds to ARL2.GTP with high affinity but does not interact with ARL2.GDP, activated ARF, or RHO proteins. The lack of detectable membrane association of this protein or ARL2 upon activation of ARL2 is suggestive of actions distinct from those of the ARFs. This protein is considered to be the first ARL2-specific effector identified, due to its interaction with ARL2.GTP but lack of ARL2 GTPase-activating protein activity. [provided by RefSeq, Jul 2008]
PLLP (HGNC:18553): (plasmolipin) Predicted to be a structural constituent of myelin sheath. Predicted to be involved in myelination. Predicted to be located in compact myelin and membrane raft. Predicted to be integral component of membrane. Biomarker of schizophrenia. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr16-57248570-T-G is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.828

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARL2BPNM_012106.4 linkuse as main transcriptc.134T>C p.Met45Thr missense_variant 3/6 ENST00000219204.8
LOC124903697XR_007065082.1 linkuse as main transcriptn.1491A>G non_coding_transcript_exon_variant 2/2
ARL2BPXM_047433883.1 linkuse as main transcriptc.38T>C p.Met13Thr missense_variant 3/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARL2BPENST00000219204.8 linkuse as main transcriptc.134T>C p.Met45Thr missense_variant 3/61 NM_012106.4 P1Q9Y2Y0-1
ARL2BPENST00000563234.1 linkuse as main transcriptc.128T>C p.Met43Thr missense_variant 3/62
ARL2BPENST00000562023.5 linkuse as main transcriptc.101-1210T>C intron_variant 3
PLLPENST00000564376.1 linkuse as main transcriptn.377A>G non_coding_transcript_exon_variant 2/23

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
29
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
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:
0.00
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.85
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Uncertain
0.13
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
T
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.81
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.070
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Uncertain
-0.28
T
MutationAssessor
Uncertain
2.8
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Pathogenic
-5.0
D
REVEL
Uncertain
0.60
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.95
P
Vest4
0.81
MutPred
0.56
Loss of stability (P = 0.0039);
MVP
0.63
MPC
1.5
ClinPred
1.0
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.89
gMVP
0.70

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: rs398123053; hg19: chr16-57282482; COSMIC: COSV54656919; COSMIC: COSV54656919; API