NM_003534.3:c.322A>T

Variant names:

• chr6-26271063-T-A
• NM_003534.3:c.322A>T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_003534.3(H3C8):​c.322A>T​(p.Thr108Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000041 in 1,461,880 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. T108A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: H3C8 NM_003534.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.05

Genes affected

H3C8 (HGNC:4772): (H3 clustered histone 8) Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene is intronless and encodes a replication-dependent histone that is a member of the histone H3 family. Transcripts from this gene lack polyA tails but instead contain a palindromic termination element. This gene is found in the large histone gene cluster on chromosome 6. [provided by RefSeq, Aug 2015]

ENSG00000291336 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a modified_residue Phosphothreonine (size 0) in uniprot entity H31_HUMAN
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
H3C8	NM_003534.3	c.322A>T	p.Thr108Ser	missense_variant	Exon 1 of 1	ENST00000614378.2	NP_003525.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
H3C8	ENST00000614378.2	c.322A>T	p.Thr108Ser	missense_variant	Exon 1 of 1	6	NM_003534.3	ENSP00000484638.1
ENSG00000291336	ENST00000707189.1	n.999+146892T>A		intron_variant	Intron 1 of 1
ENSG00000291338	ENST00000707191.1	n.1000+112942T>A		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461880 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727238

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000540

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.25
CADD	Uncertain	25
DANN	Benign	0.90
Eigen	Uncertain	0.26
Eigen_PC	Uncertain	0.29
FATHMM_MKL	Uncertain	0.78	D
M_CAP	Benign	0.035	D
MetaRNN	Uncertain	0.45	T
MetaSVM	Benign	-0.43	T
PrimateAI	Pathogenic	0.80	T
Sift4G	Benign	0.11	T
Vest4		0.58
MVP		0.15
ClinPred		0.96	D
GERP RS		4.4
gMVP		0.36

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-26271291;