chr15-42544095-C-G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_153260.3(LRRC57):​c.708G>C​(p.Lys236Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,190 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

LRRC57
NM_153260.3 missense

Scores

6
7
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.38

Publications

0 publications found
Variant links:
Genes affected
LRRC57 (HGNC:26719): (leucine rich repeat containing 57) Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]
SNAP23 (HGNC:11131): (synaptosome associated protein 23) Specificity of vesicular transport is regulated, in part, by the interaction of a vesicle-associated membrane protein termed synaptobrevin/VAMP with a target compartment membrane protein termed syntaxin. These proteins, together with SNAP25 (synaptosome-associated protein of 25 kDa), form a complex which serves as a binding site for the general membrane fusion machinery. Synaptobrevin/VAMP and syntaxin are believed to be involved in vesicular transport in most, if not all cells, while SNAP25 is present almost exclusively in the brain, suggesting that a ubiquitously expressed homolog of SNAP25 exists to facilitate transport vesicle/target membrane fusion in other tissues. The protein encoded by this gene is structurally and functionally similar to SNAP25 and binds tightly to multiple syntaxins and synaptobrevins/VAMPs. It is an essential component of the high affinity receptor for the general membrane fusion machinery and is an important regulator of transport vesicle docking and fusion. Two alternative transcript variants encoding different protein isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153260.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LRRC57
NM_153260.3
MANE Select
c.708G>Cp.Lys236Asn
missense
Exon 6 of 6NP_694992.2Q8N9N7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LRRC57
ENST00000397130.8
TSL:1 MANE Select
c.708G>Cp.Lys236Asn
missense
Exon 6 of 6ENSP00000380319.3Q8N9N7
LRRC57
ENST00000323443.6
TSL:1
c.708G>Cp.Lys236Asn
missense
Exon 5 of 5ENSP00000326817.2Q8N9N7
ENSG00000285942
ENST00000650210.1
n.678+982G>C
intron
N/AENSP00000497618.1A0A3B3ISV5

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152068
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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
AF:
6.84e-7
AC:
1
AN:
1461122
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
726864
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33452
American (AMR)
AF:
0.00
AC:
0
AN:
44694
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39682
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86234
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53348
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111502
Other (OTH)
AF:
0.00
AC:
0
AN:
60338
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152068
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74286
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41398
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Benign
-0.084
T
BayesDel_noAF
Benign
-0.36
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.051
D
MetaRNN
Uncertain
0.47
T
MetaSVM
Benign
-0.64
T
MutationAssessor
Pathogenic
3.1
M
PhyloP100
7.4
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-4.5
D
REVEL
Uncertain
0.30
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0040
D
Polyphen
1.0
D
Vest4
0.52
MutPred
0.41
Loss of methylation at K236 (P = 0.0048)
MVP
0.75
MPC
1.1
ClinPred
1.0
D
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.85
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.24
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.24
Position offset: 29

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1257739128; hg19: chr15-42836293; API