chr16-74714254-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_024306.5(FA2H):​c.1055C>A​(p.Thr352Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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. T352I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

FA2H
NM_024306.5 missense

Scores

7
12

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.55
Variant links:
Genes affected
FA2H (HGNC:21197): (fatty acid 2-hydroxylase) This gene encodes a protein that catalyzes the synthesis of 2-hydroxysphingolipids, a subset of sphingolipids that contain 2-hydroxy fatty acids. Sphingolipids play roles in many cellular processes and their structural diversity arises from modification of the hydrophobic ceramide moiety, such as by 2-hydroxylation of the N-acyl chain, and the existence of many different head groups. Mutations in this gene have been associated with leukodystrophy dysmyelinating with spastic paraparesis with or without dystonia.[provided by RefSeq, Mar 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.32196885).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FA2HNM_024306.5 linkuse as main transcriptc.1055C>A p.Thr352Asn missense_variant 7/7 ENST00000219368.8
FA2HXM_011523319.3 linkuse as main transcriptc.815C>A p.Thr272Asn missense_variant 7/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FA2HENST00000219368.8 linkuse as main transcriptc.1055C>A p.Thr352Asn missense_variant 7/71 NM_024306.5 P1Q7L5A8-1
FA2HENST00000562145.1 linkuse as main transcriptn.776C>A non_coding_transcript_exon_variant 2/21
FA2HENST00000567683.5 linkuse as main transcriptc.*334C>A 3_prime_UTR_variant, NMD_transcript_variant 5/52

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000593
AC:
1
AN:
168580
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
89124
show subpopulations
Gnomad AFR exome
AF:
0.000102
Gnomad AMR exome
AF:
0.00
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
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1408768
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
695888
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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
Cov.:
33
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000858
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
0.011
T
BayesDel_noAF
Benign
-0.22
CADD
Benign
23
DANN
Uncertain
0.98
DEOGEN2
Benign
0.32
T
Eigen
Benign
-0.097
Eigen_PC
Benign
-0.069
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.86
D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.32
T
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
0.99
D;D
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.29
Sift
Uncertain
0.0080
D
Sift4G
Uncertain
0.010
D
Polyphen
0.97
D
Vest4
0.45
MVP
0.70
MPC
0.48
ClinPred
0.35
T
GERP RS
2.1
Varity_R
0.32
gMVP
0.85

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: rs375479162; hg19: chr16-74748152; API