chr6-41927455-C-T

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_004053.4(BYSL):​c.350C>T​(p.Ala117Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00283 in 1,614,100 control chromosomes in the GnomAD database, including 106 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.015 ( 63 hom., cov: 32)
Exomes 𝑓: 0.0015 ( 43 hom. )

Consequence

BYSL
NM_004053.4 missense

Scores

17

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.250

Publications

5 publications found
Variant links:
Genes affected
BYSL (HGNC:1157): (bystin like) Bystin is expressed as a 2-kb major transcript and a 3.6-kb minor transcript in SNG-M cells and in human trophoblastic teratocarcinoma HT-H cells. Protein binding assays determined that bystin binds directly to trophinin and tastin, and that binding is enhanced when cytokeratins 8 and 18 are present. Immunocytochemistry of HT-H cells showed that bystin colocalizes with trophinin, tastin, and the cytokeratins, suggesting that these molecules form a complex in trophectoderm cells at the time of implantation. Using immunohistochemistry it was determined that trophinin and bystin are found in the placenta from the sixth week of pregnancy. Both proteins were localized in the cytoplasm of the syncytiotrophoblast in the chorionic villi and in endometrial decidual cells at the uteroplacental interface. After week 10, the levels of trophinin, tastin, and bystin decreased and then disappeared from placental villi. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0020916462).
BP6
Variant 6-41927455-C-T is Benign according to our data. Variant chr6-41927455-C-T is described in ClinVar as Benign. ClinVar VariationId is 786088.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0508 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004053.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BYSL
NM_004053.4
MANE Select
c.350C>Tp.Ala117Val
missense
Exon 2 of 7NP_004044.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BYSL
ENST00000230340.9
TSL:1 MANE Select
c.350C>Tp.Ala117Val
missense
Exon 2 of 7ENSP00000230340.4Q13895
BYSL
ENST00000920333.1
c.365C>Tp.Ala122Val
missense
Exon 2 of 7ENSP00000590392.1
BYSL
ENST00000715726.2
c.350C>Tp.Ala117Val
missense
Exon 2 of 7ENSP00000520508.1Q13895

Frequencies

GnomAD3 genomes
AF:
0.0152
AC:
2316
AN:
152130
Hom.:
63
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0527
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00602
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.0105
GnomAD2 exomes
AF:
0.00390
AC:
981
AN:
251456
AF XY:
0.00268
show subpopulations
Gnomad AFR exome
AF:
0.0530
Gnomad AMR exome
AF:
0.00217
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000237
Gnomad OTH exome
AF:
0.00179
GnomAD4 exome
AF:
0.00154
AC:
2249
AN:
1461852
Hom.:
43
Cov.:
31
AF XY:
0.00131
AC XY:
950
AN XY:
727230
show subpopulations
African (AFR)
AF:
0.0528
AC:
1767
AN:
33464
American (AMR)
AF:
0.00302
AC:
135
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000128
AC:
11
AN:
86258
European-Finnish (FIN)
AF:
0.0000374
AC:
2
AN:
53416
Middle Eastern (MID)
AF:
0.00347
AC:
20
AN:
5768
European-Non Finnish (NFE)
AF:
0.000119
AC:
132
AN:
1111994
Other (OTH)
AF:
0.00301
AC:
182
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
119
238
356
475
594
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
58
116
174
232
290
<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:
0.0152
AC:
2320
AN:
152248
Hom.:
63
Cov.:
32
AF XY:
0.0146
AC XY:
1084
AN XY:
74440
show subpopulations
African (AFR)
AF:
0.0527
AC:
2187
AN:
41538
American (AMR)
AF:
0.00602
AC:
92
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4822
European-Finnish (FIN)
AF:
0.0000944
AC:
1
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000235
AC:
16
AN:
68020
Other (OTH)
AF:
0.0104
AC:
22
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
107
215
322
430
537
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
24
48
72
96
120
<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:
0.00384
Hom.:
29
Bravo
AF:
0.0176
ESP6500AA
AF:
0.0527
AC:
232
ESP6500EA
AF:
0.000581
AC:
5
ExAC
AF:
0.00471
AC:
572
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000296

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Benign
-0.66
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
8.3
DANN
Benign
0.87
DEOGEN2
Benign
0.13
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.062
N
LIST_S2
Benign
0.12
T
MetaRNN
Benign
0.0021
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
-0.76
N
PhyloP100
-0.25
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.54
N
REVEL
Benign
0.0060
Sift
Benign
0.41
T
Sift4G
Benign
0.32
T
Polyphen
0.0
B
Vest4
0.028
MVP
0.25
MPC
0.35
ClinPred
0.0034
T
GERP RS
1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.011
gMVP
0.11
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs36124188; hg19: chr6-41895193; COSMIC: COSV99038821; API