6-25727104-TC-AG

Variant names:

• chr6-25727104-TC-AG
• NM_170610.3:c.196_197delTCinsAG
• H2BC1 p.67

Variant summary

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

The NM_170610.3(H2BC1):​c.196_197delTCinsAG​(p.67) variant causes a synonymous change. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: H2BC1 NM_170610.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.89
• Publications: 0 publications found

Genes affected

H2BC1 (HGNC:18730): (H2B clustered histone 1) Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene is intronless and encodes a replication-dependent histone that is a testis/sperm-specific member of the histone H2B family. Transcripts from this gene contain a palindromic termination element. [provided by RefSeq, Aug 2015]

ENSG00000290217 (HGNC:):

SLC17A1 (HGNC:10929): (solute carrier family 17 member 1) Predicted to enable sialic acid transmembrane transporter activity. Involved in urate metabolic process and urate transport. Located in apical plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_170610.3. 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
	H2BC1	NM_170610.3	MANE Select	c.196_197delTCinsAG	p.67	synonymous	N/A	NP_733759.1	Q96A08

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	H2BC1	ENST00000274764.5	TSL:6 MANE Select	c.196_197delTCinsAG	p.67	synonymous	N/A	ENSP00000274764.3	Q96A08
	ENSG00000290217	ENST00000703602.1		c.*50+8233_*50+8234delTCinsAG		intron	N/A	ENSP00000515390.1	A0A994J4C2

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		5.9

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: chr6-25727332;