chr14-45198735-C-T

Variant names:

• chr14-45198735-C-T
• rs142333130
• NM_020937.4:c.5808C>T

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_Moderate BP6_Very_Strong BP7 BS1 BS2

The NM_020937.4(FANCM):​c.5808C>T​(p.Ser1936Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000324 in 1,613,942 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0017 (1 hom., cov: 32)
  • Exomes 𝑓: 0.00018 (2 hom.)
• Consequence: FANCM NM_020937.4 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10
• Conservation: PhyloP100: 0.225
• Publications: 1 publications found

Genes affected

FANCM (HGNC:23168): (FA complementation group M) The Fanconi anemia complementation group (FANC) currently includes FANCA, FANCB, FANCC, FANCD1 (also called BRCA2), FANCD2, FANCE, FANCF, FANCG, FANCI, FANCJ (also called BRIP1), FANCL, FANCM and FANCN (also called PALB2). The previously defined group FANCH is the same as FANCA. Fanconi anemia is a genetically heterogeneous recessive disorder characterized by cytogenetic instability, hypersensitivity to DNA crosslinking agents, increased chromosomal breakage, and defective DNA repair. The members of the Fanconi anemia complementation group do not share sequence similarity; they are related by their assembly into a common nuclear protein complex. This gene encodes the protein for complementation group M. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

FANCM Gene-Disease associations (from GenCC):

• Fanconi anemia

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: G2P, Orphanet
• spermatogenic failure 28

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• male infertility with azoospermia or oligozoospermia due to single gene mutation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• breast cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -19 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.4).
• BP6: Variant 14-45198735-C-T is Benign according to our data. Variant chr14-45198735-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 456278.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.225 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00171 (261/152196) while in subpopulation AFR AF = 0.00598 (248/41496). AF 95% confidence interval is 0.00537. There are 1 homozygotes in GnomAd4. There are 131 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020937.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCM	NM_020937.4	MANE Select	c.5808C>T	p.Ser1936Ser	synonymous	Exon 22 of 23	NP_065988.1
	FANCM	NM_001308133.2		c.5730C>T	p.Ser1910Ser	synonymous	Exon 21 of 22	NP_001295062.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCM	ENST00000267430.10	TSL:1 MANE Select	c.5808C>T	p.Ser1936Ser	synonymous	Exon 22 of 23	ENSP00000267430.5
	FANCM	ENST00000542564.6	TSL:1	c.5730C>T	p.Ser1910Ser	synonymous	Exon 21 of 22	ENSP00000442493.2
	FANCM	ENST00000556250.6	TSL:1	c.5601C>T	p.Ser1867Ser	synonymous	Exon 21 of 22	ENSP00000452033.2

Frequencies

GnomAD3 genomes AF: 0.00170 AC: 258 AN: 152078 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.00590

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000589

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00144

GnomAD2 exomes AF: 0.000501 AC: 126 AN: 251334 AF XY: 0.000390

Gnomad AFR exome AF: 0.00591

Gnomad AMR exome AF: 0.000723

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.000179 AC: 262 AN: 1461746 Hom.: 2 Cov.: 31 AF XY: 0.000146 AC XY: 106 AN XY: 727180

African (AFR) AF: 0.00574 AC: 192 AN: 33478

American (AMR) AF: 0.000693 AC: 31 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39678

South Asian (SAS) AF: 0.0000348 AC: 3 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.00000899 AC: 10 AN: 1111914

Other (OTH) AF: 0.000414 AC: 25 AN: 60390

GnomAD4 genome AF: 0.00171 AC: 261 AN: 152196 Hom.: 1 Cov.: 32 AF XY: 0.00176 AC XY: 131 AN XY: 74418

African (AFR) AF: 0.00598 AC: 248 AN: 41496

American (AMR) AF: 0.000523 AC: 8 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68018

Other (OTH) AF: 0.00142 AC: 3 AN: 2108

Alfa AF: 0.000867 Hom.: 0

Bravo AF: 0.00192

Asia WGS AF: 0.000578 AC: 2 AN: 3476

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions as Germline

Significance: Benign/Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	3	not provided (3)
-	-	1	FANCM-related disorder (1)
-	-	1	Fanconi anemia (1)
-	-	1	Hereditary cancer-predisposing syndrome (1)
-	-	1	Inborn genetic diseases (1)
-	-	1	not specified (1)
-	-	1	Premature ovarian failure 15 (1)
-	-	1	Spermatogenic failure 28;C4748170:Premature ovarian failure 15 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.098
BayesDel_noAF	Benign	-0.40
CADD	Benign	9.5
DANN	Benign	0.96
PhyloP100		0.23
Mutation Taster		=100/0	polymorphism

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: rs142333130; hg19: chr14-45667938;