rs59985777
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong
The NM_002055.5(GFAP):c.992T>C(p.Leu331Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Synonymous variant affecting the same amino acid position (i.e. L331L) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 32)
Consequence
GFAP
NM_002055.5 missense
NM_002055.5 missense
Scores
7
4
2
Clinical Significance
Conservation
PhyloP100: 9.32
Genes affected
GFAP (HGNC:4235): (glial fibrillary acidic protein) This gene encodes one of the major intermediate filament proteins of mature astrocytes. It is used as a marker to distinguish astrocytes from other glial cells during development. Mutations in this gene cause Alexander disease, a rare disorder of astrocytes in the central nervous system. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Oct 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
PM1
?
In a region_of_interest Coil 2B (size 120) in uniprot entity GFAP_HUMAN there are 26 pathogenic changes around while only 6 benign (81%) in NM_002055.5
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.99
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GFAP | NM_002055.5 | c.992T>C | p.Leu331Pro | missense_variant | 6/9 | ENST00000588735.3 | |
GFAP | NM_001363846.2 | c.992T>C | p.Leu331Pro | missense_variant | 6/10 | ||
GFAP | NM_001242376.3 | c.992T>C | p.Leu331Pro | missense_variant | 6/7 | ||
GFAP | NM_001131019.3 | c.992T>C | p.Leu331Pro | missense_variant | 6/8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GFAP | ENST00000588735.3 | c.992T>C | p.Leu331Pro | missense_variant | 6/9 | 1 | NM_002055.5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: not provided
Submissions summary: Other:2
Revision: no classification provided
LINK: link
Submissions by phenotype
not provided Other:1
not provided, no classification provided | literature only | Epithelial Biology; Institute of Medical Biology, Singapore | - | - - |
Alexander disease Other:1
not provided, no classification provided | literature only | GeneReviews | - | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T;T;T;T;T;T
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D;D;D
MetaSVM
Pathogenic
D
MutationTaster
Benign
D;D;D;D
PrimateAI
Uncertain
T
Polyphen
1.0
.;D;.;.;.;.
Vest4
0.94, 0.94
MutPred
Loss of stability (P = 0.0143);Loss of stability (P = 0.0143);Loss of stability (P = 0.0143);.;Loss of stability (P = 0.0143);Loss of stability (P = 0.0143);
MVP
1.0
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at