YY1AP1 p.Leu90Leu

Variant names:

• chr1-155688194-T-T
• NM_139119.3:c.

Your query was ambiguous. Multiple possible variants found:

• chr1-155688195--
• chr1-155688195-A-G
• chr1-155688195-A-T
• chr1-155688195-A-C
• chr1-155688195-AAG-TAA
• chr1-155688195-AAG-CAA

Variant summary

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

The NM_001198904.1(YY1AP1):​c. variant causes a exon region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 29)
• Consequence: YY1AP1 NM_001198904.1 exon_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.128
• Publications: 0 publications found

Genes affected

YY1AP1 (HGNC:30935): (YY1 associated protein 1) Predicted to enable transcription coregulator activity. Involved in cell differentiation; cell population proliferation; and regulation of cell cycle. Located in fibrillar center and nucleoplasm. Colocalizes with Ino80 complex. [provided by Alliance of Genome Resources, Apr 2022]

DAP3 (HGNC:2673): (death associated protein 3) Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 28S subunit protein that also participates in apoptotic pathways which are initiated by tumor necrosis factor-alpha, Fas ligand, and gamma interferon. This protein potentially binds ATP/GTP and might be a functional partner of the mitoribosomal protein S27. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. Pseudogenes corresponding to this gene are found on chromosomes 1q and 2q. [provided by RefSeq, Dec 2010]

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_001198904.1. 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
	YY1AP1	NM_139119.3	MANE Select	c.		exon_region	Exon 2 of 11	NP_620830.1	Q9H869-2
	YY1AP1	NM_139119.3	MANE Select	c.		5_prime_UTR	Exon 2 of 11	NP_620830.1	Q9H869-2
	YY1AP1	NM_001198903.1		c.		exon_region	Exon 1 of 10	NP_001185832.1	Q9H869-9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	YY1AP1	ENST00000355499.9	TSL:1 MANE Select	c.		exon_region	Exon 2 of 11	ENSP00000347686.4	Q9H869-2
	YY1AP1	ENST00000368340.10	TSL:1	c.		exon_region	Exon 1 of 10	ENSP00000357324.5	Q9H869-8
	YY1AP1	ENST00000359205.9	TSL:1	c.		exon_region	Exon 2 of 10	ENSP00000352134.5	Q9H869-3

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.13

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr1-155657985;