NM_019616.4:c.64+8C>G

Variant names:

• chr13-113105913-C-G
• rs10482844
• NM_019616.4:c.64+8C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_019616.4(F7):​c.64+8C>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,429,380 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: F7 NM_019616.4 splice_region, intron
• Scores: Splicing: ADA: 0.00004365
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.196
• Publications: 0 publications found

Genes affected

F7 (HGNC:3544): (coagulation factor VII) This gene encodes coagulation factor VII which is a vitamin K-dependent factor essential for hemostasis. This factor circulates in the blood in a zymogen form, and is converted to an active form by either factor IXa, factor Xa, factor XIIa, or thrombin by minor proteolysis. Upon activation of the factor VII, a heavy chain containing a catalytic domain and a light chain containing 2 EGF-like domains are generated, and two chains are held together by a disulfide bond. In the presence of factor III and calcium ions, the activated factor then further activates the coagulation cascade by converting factor IX to factor IXa and/or factor X to factor Xa. Defects in this gene can cause coagulopathy. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar proteolytic processing to generate mature polypeptides. [provided by RefSeq, Aug 2015]

F7 Gene-Disease associations (from GenCC):

• congenital factor VII deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
• factor VII deficiency

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_019616.4. 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
	F7	NM_019616.4	MANE Select	c.64+8C>G		splice_region intron	N/A	NP_062562.1	P08709-2
	F7	NM_000131.5		c.64+8C>G		splice_region intron	N/A	NP_000122.1
	F7	NM_001267554.2		c.64+8C>G		splice_region intron	N/A	NP_001254483.1	F5H8B0

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	F7	ENST00000346342.8	TSL:1 MANE Select	c.64+8C>G		splice_region intron	N/A	ENSP00000329546.4	P08709-2
	F7	ENST00000375581.3	TSL:1	c.64+8C>G		splice_region intron	N/A	ENSP00000364731.3	P08709-1
	F7	ENST00000891255.1		c.64+8C>G		splice_region intron	N/A	ENSP00000561314.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 7.00e-7 AC: 1 AN: 1429380 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 707210

African (AFR) AF: 0.0000301 AC: 1 AN: 33268

American (AMR) AF: 0.00 AC: 0 AN: 40072

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25368

East Asian (EAS) AF: 0.00 AC: 0 AN: 38824

South Asian (SAS) AF: 0.00 AC: 0 AN: 81514

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49534

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5706

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1095890

Other (OTH) AF: 0.00 AC: 0 AN: 59204

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	0.97
DANN	Benign	0.49
PhyloP100		-0.20
PromoterAI		0.0052	Neutral

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000044
dbscSNV1_RF	Benign	0.0020
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: rs10482844; hg19: chr13-113760227;