rs142047649
Variant summary
Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2
The NM_004380.3(CREBBP):c.2678C>T(p.Ser893Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00203 in 1,614,080 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S893W) has been classified as Uncertain significance.
Frequency
Consequence
NM_004380.3 missense
Scores
Clinical Significance
Conservation
Publications
- Rubinstein-Taybi syndromeInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Illumina
- Rubinstein-Taybi syndrome due to CREBBP mutationsInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
- Menke-Hennekam syndrome 1Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Benign. The variant received -16 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_004380.3. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CREBBP | NM_004380.3 | MANE Select | c.2678C>T | p.Ser893Leu | missense | Exon 14 of 31 | NP_004371.2 | ||
| CREBBP | NM_001079846.1 | c.2564C>T | p.Ser855Leu | missense | Exon 13 of 30 | NP_001073315.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CREBBP | ENST00000262367.10 | TSL:1 MANE Select | c.2678C>T | p.Ser893Leu | missense | Exon 14 of 31 | ENSP00000262367.5 | ||
| CREBBP | ENST00000382070.7 | TSL:1 | c.2564C>T | p.Ser855Leu | missense | Exon 13 of 30 | ENSP00000371502.3 | ||
| CREBBP | ENST00000570939.2 | TSL:5 | c.1283C>T | p.Ser428Leu | missense | Exon 9 of 23 | ENSP00000461002.2 |
Frequencies
GnomAD3 genomes AF: 0.00135 AC: 206AN: 152086Hom.: 2 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.000987 AC: 248AN: 251368 AF XY: 0.000949 show subpopulations
GnomAD4 exome AF: 0.00210 AC: 3064AN: 1461876Hom.: 9 Cov.: 33 AF XY: 0.00198 AC XY: 1442AN XY: 727236 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00135 AC: 206AN: 152204Hom.: 2 Cov.: 31 AF XY: 0.00118 AC XY: 88AN XY: 74432 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:5
CREBBP: PP2, BS1, BS2
not specified Benign:3Other:1
Variant summary: CREBBP c.2678C>T (p.Ser893Leu) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00099 in 251368 control chromosomes, predominantly at a frequency of 0.0019 within the Non-Finnish European subpopulation in the gnomAD database. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database exceeds the estimated maximal expected allele frequency for a pathogenic variant in CREBBP causing Rubinstein-Taybi Syndrome phenotype. ClinVar contains an entry for this variant (Variation ID: 95035). Based on the evidence outlined above, the variant was classified as likely benign.
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
Rubinstein-Taybi syndrome due to CREBBP mutations Benign:2
Rubinstein-Taybi syndrome due to CREBBP mutations;C5193034:Menke-Hennekam syndrome 1 Benign:1
CREBBP-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).
Rubinstein-Taybi syndrome Benign:1
Inborn genetic diseases Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at