chr12-49588459-C-T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_032130.3(FAM186B):​c.2529G>A​(p.Met843Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000375 in 1,611,502 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M843T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00038 ( 1 hom. )

Consequence

FAM186B
NM_032130.3 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.00700

Publications

4 publications found
Variant links:
Genes affected
FAM186B (HGNC:25296): (family with sequence similarity 186 member B) This gene product is a member of the FAM186 family, however, its exact function is not known. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2009]
PRPF40B (HGNC:25031): (pre-mRNA processing factor 40 homolog B) This gene encodes a WW-domain containing protein similar to yeast splicing factor PRP40. This protein has been shown to interact with Huntingtin and methyl CpG binding protein 2 (MeCP2). Alternative splicing results in different transcript variants. [provided by RefSeq, Aug 2014]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0053145885).
BP6
Variant 12-49588459-C-T is Benign according to our data. Variant chr12-49588459-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1648584.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032130.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FAM186B
NM_032130.3
MANE Select
c.2529G>Ap.Met843Ile
missense
Exon 6 of 7NP_115506.1Q8IYM0-1
FAM186B
NR_027450.2
n.2871G>A
non_coding_transcript_exon
Exon 6 of 7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FAM186B
ENST00000257894.2
TSL:1 MANE Select
c.2529G>Ap.Met843Ile
missense
Exon 6 of 7ENSP00000257894.2Q8IYM0-1
FAM186B
ENST00000532262.5
TSL:1
c.1368G>Ap.Met456Ile
missense
Exon 3 of 5ENSP00000436995.1A0A0C4DGG0
FAM186B
ENST00000548841.5
TSL:5
c.198G>Ap.Met66Ile
missense
Exon 2 of 4ENSP00000448989.1H0YIB0

Frequencies

GnomAD3 genomes
AF:
0.000296
AC:
45
AN:
152264
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.000753
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000470
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000509
AC:
127
AN:
249446
AF XY:
0.000512
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000582
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00247
Gnomad NFE exome
AF:
0.000585
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000384
AC:
560
AN:
1459120
Hom.:
1
Cov.:
31
AF XY:
0.000400
AC XY:
290
AN XY:
725452
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33454
American (AMR)
AF:
0.0000450
AC:
2
AN:
44482
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26028
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39604
South Asian (SAS)
AF:
0.000256
AC:
22
AN:
85972
European-Finnish (FIN)
AF:
0.00255
AC:
136
AN:
53260
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5744
European-Non Finnish (NFE)
AF:
0.000337
AC:
374
AN:
1110292
Other (OTH)
AF:
0.000415
AC:
25
AN:
60284
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
30
61
91
122
152
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000295
AC:
45
AN:
152382
Hom.:
0
Cov.:
32
AF XY:
0.000322
AC XY:
24
AN XY:
74518
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41594
American (AMR)
AF:
0.000131
AC:
2
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4828
European-Finnish (FIN)
AF:
0.000753
AC:
8
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000470
AC:
32
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000482
Hom.:
0
Bravo
AF:
0.000261
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000585
AC:
71
EpiCase
AF:
0.000273
EpiControl
AF:
0.000297

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
6.3
DANN
Benign
0.75
DEOGEN2
Benign
0.026
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.71
FATHMM_MKL
Benign
0.021
N
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.0029
T
MetaRNN
Benign
0.0053
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.84
L
PhyloP100
0.0070
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.052
Sift
Benign
0.94
T
Sift4G
Benign
0.51
T
Polyphen
0.0030
B
Vest4
0.23
MutPred
0.35
Loss of catalytic residue at M843 (P = 0.0012)
MVP
0.040
MPC
0.14
ClinPred
0.0094
T
GERP RS
1.7
Varity_R
0.070
gMVP
0.090
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs148973222; hg19: chr12-49982242; API