22-38214839-C-T

Variant names:

• chr22-38214839-C-T
• rs925672122
• NM_012323.4:c.456C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_012323.4(MAFF):​c.456C>T​(p.His152His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MAFF NM_012323.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.295
• Publications: 0 publications found

Genes affected

MAFF (HGNC:6780): (MAF bZIP transcription factor F) The protein encoded by this gene is a basic leucine zipper (bZIP) transcription factor that lacks a transactivation domain. It is known to bind the US-2 DNA element in the promoter of the oxytocin receptor (OTR) gene and most likely heterodimerizes with other leucine zipper-containing proteins to enhance expression of the OTR gene during term pregnancy. The encoded protein can also form homodimers, and since it lacks a transactivation domain, the homodimer may act as a repressor of transcription. This gene may also be involved in the cellular stress response. Multiple transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2009]

PLA2G6 (HGNC:9039): (phospholipase A2 group VI) The protein encoded by this gene is an A2 phospholipase, a class of enzyme that catalyzes the release of fatty acids from phospholipids. The encoded protein may play a role in phospholipid remodelling, arachidonic acid release, leukotriene and prostaglandin synthesis, fas-mediated apoptosis, and transmembrane ion flux in glucose-stimulated B-cells. Several transcript variants encoding multiple isoforms have been described, but the full-length nature of only three of them have been determined to date. [provided by RefSeq, Dec 2010]

PLA2G6 Gene-Disease associations (from GenCC):

• neurodegeneration with brain iron accumulation 2A

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
• neurodegeneration with brain iron accumulation 2B

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• PLA2G6-associated neurodegeneration

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• autosomal recessive Parkinson disease 14

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.64).
• BP7: Synonymous conserved (PhyloP=0.295 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012323.4. 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
	MAFF	NM_012323.4	MANE Select	c.456C>T	p.His152His	synonymous	Exon 3 of 3	NP_036455.1	Q9ULX9-1
	MAFF	NM_001161572.2		c.456C>T	p.His152His	synonymous	Exon 3 of 3	NP_001155044.1	Q9ULX9-1
	MAFF	NM_001161573.1		c.456C>T	p.His152His	synonymous	Exon 3 of 3	NP_001155045.1	Q9ULX9-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAFF	ENST00000338483.7	TSL:1 MANE Select	c.456C>T	p.His152His	synonymous	Exon 3 of 3	ENSP00000345393.2	Q9ULX9-1
	MAFF	ENST00000407965.2	TSL:2	c.456C>T	p.His152His	synonymous	Exon 3 of 3	ENSP00000384094.1
	MAFF	ENST00000417948.6	TSL:4	c.456C>T	p.His152His	synonymous	Exon 3 of 3	ENSP00000416493.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00 AC: 0 AN: 95958 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1346288 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 664066

African (AFR) AF: 0.00 AC: 0 AN: 27540

American (AMR) AF: 0.00 AC: 0 AN: 30046

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23634

East Asian (EAS) AF: 0.00 AC: 0 AN: 30638

South Asian (SAS) AF: 0.00 AC: 0 AN: 75218

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 38964

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5488

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1058868

Other (OTH) AF: 0.00 AC: 0 AN: 55892

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.64
CADD	Benign	1.3
DANN	Benign	0.97
PhyloP100		0.29
PromoterAI		-0.064	Neutral

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

Other links and lift over

dbSNP: rs925672122; hg19: chr22-38610846;