Genetic Variant NM_014423.4:c.2445C>T (chr5-132892356-G-A) – ACMG Classification: Benign (-17 pts)

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_014423.4(AFF4):c.2445C>T(p.Pro815Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000255 in 1,613,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P815P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

AFF4
NM_014423.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.00600

Publications

2 publications found

Variant links:

Genes affected

AFF4 (HGNC:17869): (ALF transcription elongation factor 4) The protein encoded by this gene belongs to the AF4 family of transcription factors involved in leukemia. It is a component of the positive transcription elongation factor b (P-TEFb) complex. A chromosomal translocation involving this gene and MLL gene on chromosome 11 is found in infant acute lymphoblastic leukemia with ins(5;11)(q31;q31q23). [provided by RefSeq, Oct 2011]

AFF4 Gene-Disease associations (from GenCC):

cognitive impairment - coarse facies - heart defects - obesity - pulmonary involvement - short stature - skeletal dysplasia syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, G2P, Labcorp Genetics (formerly Invitae), Orphanet

AFF4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.48).

BP6

Variant 5-132892356-G-A is Benign according to our data. Variant chr5-132892356-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 434101.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.006 with no splicing effect.

BS2

High AC in GnomAd4 at 25 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014423.4. 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
	AFF4	NM_014423.4	MANE Select	c.2445C>T	p.Pro815Pro	synonymous	Exon 13 of 21	NP_055238.1	Q9UHB7-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AFF4	ENST00000265343.10	TSL:1 MANE Select	c.2445C>T	p.Pro815Pro	synonymous	Exon 13 of 21	ENSP00000265343.5	Q9UHB7-1
AFF4	ENST00000378595.7	TSL:1	c.2445C>T	p.Pro815Pro	synonymous	Exon 13 of 13	ENSP00000367858.3	Q9UHB7-2
AFF4	ENST00000944867.1		c.2475C>T	p.Pro825Pro	synonymous	Exon 13 of 21	ENSP00000614926.1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000438

AC:

110

AN:

250936

AF XY:

0.000442

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00107

Gnomad ASJ exome

AF:

0.00129

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.00164

GnomAD4 exome

AF:

0.000264

AC:

386

AN:

1461700

Hom.:

Cov.:

AF XY:

0.000279

AC XY:

203

AN XY:

727112

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33470

American (AMR)

AF:

0.00107

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.000689

AC:

AN:

26132

East Asian (EAS)

AF:

0.000378

AC:

AN:

39698

South Asian (SAS)

AF:

0.000846

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00261

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.000172

AC:

191

AN:

1111864

Other (OTH)

AF:

0.000348

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

118

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000164

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74404

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41518

American (AMR)

AF:

0.000327

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00115

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.00124

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

67996

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.529

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:

0.000230

Hom.:

Bravo

AF:

0.000249

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cognitive impairment - coarse facies - heart defects - obesity - pulmonary involvement - short stature - skeletal dysplasia syndrome (2)

AFF4-related disorder (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.48

CADD

Benign

8.6

(source)

DANN

Benign

0.70

PhyloP100

0.0060

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

2.7

Mutation Taster

=99/1

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

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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