19-55227201-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000327042.5(TMEM86B):​c.661C>T​(p.Pro221Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000523 in 1,528,638 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

TMEM86B
ENST00000327042.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.02
Variant links:
Genes affected
TMEM86B (HGNC:28448): (transmembrane protein 86B) Enables alkenylglycerophosphocholine hydrolase activity; alkenylglycerophosphoethanolamine hydrolase activity; and identical protein binding activity. Involved in ether lipid metabolic process. Located in cytoplasm and membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.030072689).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM86BNM_173804.5 linkuse as main transcriptc.661C>T p.Pro221Ser missense_variant 3/3 ENST00000327042.5 NP_776165.3 Q8N661
TMEM86BNM_001372013.1 linkuse as main transcriptc.658C>T p.Pro220Ser missense_variant 2/2 NP_001358942.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM86BENST00000327042.5 linkuse as main transcriptc.661C>T p.Pro221Ser missense_variant 3/31 NM_173804.5 ENSP00000321038.3 Q8N661
TMEM86BENST00000585416.1 linkuse as main transcriptn.1584C>T non_coding_transcript_exon_variant 1/16
TMEM86BENST00000589190.1 linkuse as main transcriptn.946C>T non_coding_transcript_exon_variant 2/22
ENSG00000276570ENST00000586923.1 linkuse as main transcriptn.*18C>T downstream_gene_variant 6

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152176
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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
GnomAD3 exomes
AF:
0.00000575
AC:
1
AN:
173786
Hom.:
0
AF XY:
0.0000109
AC XY:
1
AN XY:
91976
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000393
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000363
AC:
5
AN:
1376344
Hom.:
0
Cov.:
30
AF XY:
0.00000445
AC XY:
3
AN XY:
673568
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000140
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152294
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000196
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:
0.0000113
ExAC
AF:
0.00000829
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 04, 2022The c.661C>T (p.P221S) alteration is located in exon 3 (coding exon 3) of the TMEM86B gene. This alteration results from a C to T substitution at nucleotide position 661, causing the proline (P) at amino acid position 221 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
8.0
DANN
Benign
0.93
DEOGEN2
Benign
0.018
T
Eigen
Benign
-0.81
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.63
D
LIST_S2
Benign
0.46
T
M_CAP
Benign
0.0030
T
MetaRNN
Benign
0.030
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
2.0
M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-2.1
N
REVEL
Benign
0.060
Sift
Benign
0.083
T
Sift4G
Uncertain
0.054
T
Polyphen
0.0080
B
Vest4
0.066
MutPred
0.26
Gain of phosphorylation at P221 (P = 0.0567);
MVP
0.10
MPC
0.012
ClinPred
0.073
T
GERP RS
0.86
Varity_R
0.046
gMVP
0.24

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: rs550930837; hg19: chr19-55738569; API