Genetic Variant NM_004380.3:c.879G>A (chr16-3810699-C-T) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_004380.3(CREBBP):c.879G>A(p.Val293Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000553 in 1,613,724 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00057 ( 1 hom. )

Consequence

CREBBP
NM_004380.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 0.319

Publications

0 publications found

Variant links:

Genes affected

CREBBP (HGNC:2348): (CREB binding protein) This gene is ubiquitously expressed and is involved in the transcriptional coactivation of many different transcription factors. First isolated as a nuclear protein that binds to cAMP-response element binding protein (CREB), this gene is now known to play critical roles in embryonic development, growth control, and homeostasis by coupling chromatin remodeling to transcription factor recognition. The protein encoded by this gene has intrinsic histone acetyltransferase activity and also acts as a scaffold to stabilize additional protein interactions with the transcription complex. This protein acetylates both histone and non-histone proteins. This protein shares regions of very high sequence similarity with protein p300 in its bromodomain, cysteine-histidine-rich regions, and histone acetyltransferase domain. Mutations in this gene cause Rubinstein-Taybi syndrome (RTS). Chromosomal translocations involving this gene have been associated with acute myeloid leukemia. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2009]

CREBBP Gene-Disease associations (from GenCC):

Rubinstein-Taybi syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: Illumina, ClinGen
Rubinstein-Taybi syndrome due to CREBBP mutations
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
Menke-Hennekam syndrome 1
Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

CREBBP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BP6

Variant 16-3810699-C-T is Benign according to our data. Variant chr16-3810699-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 458206.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.319 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000388 (59/151980) while in subpopulation NFE AF = 0.000691 (47/67984). AF 95% confidence interval is 0.000534. There are 0 homozygotes in GnomAd4. There are 19 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 59 AD gene.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CREBBP	NM_004380.3	MANE Select	c.879G>A	p.Val293Val	synonymous	Exon 3 of 31	NP_004371.2	Q92793-1
	CREBBP	NM_001079846.1		c.879G>A	p.Val293Val	synonymous	Exon 3 of 30	NP_001073315.1	Q92793-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CREBBP	ENST00000262367.10	TSL:1 MANE Select	c.879G>A	p.Val293Val	synonymous	Exon 3 of 31	ENSP00000262367.5	Q92793-1
CREBBP	ENST00000382070.7	TSL:1	c.879G>A	p.Val293Val	synonymous	Exon 3 of 30	ENSP00000371502.3	Q92793-2
CREBBP	ENST00000635899.1	TSL:5	n.*21G>A		downstream_gene	N/A

Frequencies

GnomAD3 genomes

AF:

0.000388

AC:

AN:

151980

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.0000944

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000691

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000545

AC:

137

AN:

251446

AF XY:

0.000545

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.000595

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000462

Gnomad NFE exome

AF:

0.000756

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000570

AC:

833

AN:

1461744

Hom.:

Cov.:

AF XY:

0.000575

AC XY:

418

AN XY:

727174

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33474

American (AMR)

AF:

0.000112

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.000497

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000858

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.000449

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00105

AC:

AN:

5692

European-Non Finnish (NFE)

AF:

0.000603

AC:

671

AN:

1111968

Other (OTH)

AF:

0.000613

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

109

163

218

272

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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:

0.000388

AC:

AN:

151980

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

AN XY:

74220

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41372

American (AMR)

AF:

0.0000656

AC:

AN:

15252

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.000415

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.0000944

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000691

AC:

AN:

67984

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000610

Hom.:

Bravo

AF:

0.000438

EpiCase

AF:

0.000491

EpiControl

AF:

0.000948

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

not specified (3)

Inborn genetic diseases (1)

Rubinstein-Taybi syndrome (1)

Rubinstein-Taybi syndrome due to CREBBP mutations;C5193034:Menke-Hennekam syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

9.6

(source)

DANN

Benign

0.75

PhyloP100

0.32

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over