9-36882093-G-C

Variant names:

• chr9-36882093-G-C
• rs35077960
• NM_016734.3:c.923C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_016734.3(PAX5):​c.923C>G​(p.Ala308Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000693 in 1,442,764 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A308T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: PAX5 NM_016734.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.75
• Publications: 0 publications found

Genes affected

PAX5 (HGNC:8619): (paired box 5) This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. Paired box transcription factors are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013]

PAX5 Gene-Disease associations (from GenCC):

• leukemia, acute lymphoblastic, susceptibility to, 3

  Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• neurodevelopmental disorder

  Inheritance: AD Classification: MODERATE Submitted by: Broad Center for Mendelian Genomics
• PAX5-related B lymphopenia and autism spectrum disorder

  Inheritance: AR Classification: MODERATE Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016734.3. 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
	PAX5	NM_016734.3	MANE Select	c.923C>G	p.Ala308Gly	missense	Exon 8 of 10	NP_057953.1
	PAX5	NM_001280548.2		c.923C>G	p.Ala308Gly	missense	Exon 8 of 9	NP_001267477.1
	PAX5	NM_001280554.2		c.794C>G	p.Ala265Gly	missense	Exon 7 of 9	NP_001267483.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PAX5	ENST00000358127.9	TSL:1 MANE Select	c.923C>G	p.Ala308Gly	missense	Exon 8 of 10	ENSP00000350844.4
	PAX5	ENST00000377853.6	TSL:1	c.923C>G	p.Ala308Gly	missense	Exon 8 of 9	ENSP00000367084.2
	PAX5	ENST00000414447.5	TSL:1	c.794C>G	p.Ala265Gly	missense	Exon 7 of 9	ENSP00000412188.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.93e-7 AC: 1 AN: 1442764 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 715442

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 32784

American (AMR) AF: 0.00 AC: 0 AN: 42702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25310

East Asian (EAS) AF: 0.00 AC: 0 AN: 38978

South Asian (SAS) AF: 0.00 AC: 0 AN: 84496

European-Finnish (FIN) AF: 0.0000189 AC: 1 AN: 52940

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5690

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1100448

Other (OTH) AF: 0.00 AC: 0 AN: 59416

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.21	T
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.0079	T
MetaRNN	Uncertain	0.50	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	1.7	L
PhyloP100		7.8
PrimateAI	Pathogenic	0.79	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.27
Sift	Benign	0.12	T
Sift4G	Benign	0.28	T
Polyphen		0.76	P
Vest4		0.76
MutPred		0.18		Loss of stability (P = 0.0496)
MVP		0.54
MPC		0.55
ClinPred		0.93	D
GERP RS		6.0
Varity_R		0.23
gMVP		0.49
Mutation Taster		=16/84	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs35077960; hg19: chr9-36882090;