chr8-143816623-T-A

Variant names:

• chr8-143816623-T-A
• rs1816320543
• NM_078480.3:c.1577A>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_078480.3(PUF60):​c.1577A>T​(p.His526Leu) variant causes a missense change involving the alteration of a 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H526R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PUF60 NM_078480.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.25
• Publications: 0 publications found

Genes affected

PUF60 (HGNC:17042): (poly(U) binding splicing factor 60) This gene encodes a nucleic acid-binding protein that plays a role in a variety of nuclear processes, including pre-mRNA splicing and transcriptional regulation. The encoded protein forms a complex with the far upstream DNA element (FUSE) and FUSE-binding protein at the myelocytomatosis oncogene (MYC) promoter. This complex represses MYC transcription through the core-TFIIH basal transcription factor. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Aug 2012]

PUF60 Gene-Disease associations (from GenCC):

• 8q24.3 microdeletion syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
• syndromic intellectual disability

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM1: In a domain RRM 3; atypical (size 87) in uniprot entity PUF60_HUMAN there are 7 pathogenic changes around while only 1 benign (88%) in NM_078480.3
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.26760715).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PUF60	NM_078480.3	c.1577A>T	p.His526Leu	missense_variant	Exon 12 of 12	ENST00000526683.6	NP_510965.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PUF60	ENST00000526683.6	c.1577A>T	p.His526Leu	missense_variant	Exon 12 of 12	1	NM_078480.3	ENSP00000434359.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.098
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Uncertain	24
DANN	Benign	0.96
DEOGEN2	Benign	0.26	T;.;.;.;.;.
Eigen	Benign	-0.15
Eigen_PC	Benign	0.096
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.86	D;D;D;D;D;D
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.27	T;T;T;T;T;T
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	-0.89	N;.;.;.;.;.
PhyloP100		7.2
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-2.7	D;D;D;D;D;D
REVEL	Benign	0.22
Sift	Benign	0.13	T;T;T;T;T;T
Sift4G	Benign	0.089	T;T;T;T;T;T
Polyphen		0.039	B;.;.;.;B;.
Vest4		0.51
MutPred		0.45		Loss of disorder (P = 0.069);.;.;.;.;.;
MVP		0.39
MPC		1.3
ClinPred		0.92	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.54
gMVP		0.86
Mutation Taster		=49/51	disease causing

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: rs1816320543; hg19: chr8-144898793;