chr15-89608888-C-T

Variant names:

• chr15-89608888-C-T
• rs768564459
• NM_152259.4:c.2808C>T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_152259.4(TICRR):​c.2808C>T​(p.Ser936Ser) variant causes a synonymous change involving the alteration of a non-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.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TICRR NM_152259.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.17
• Publications: 0 publications found

Genes affected

TICRR (HGNC:28704): (TOPBP1 interacting checkpoint and replication regulator) Enables chromatin binding activity. Involved in regulation of DNA-dependent DNA replication initiation. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

KIF7 (HGNC:30497): (kinesin family member 7) This gene encodes a cilia-associated protein belonging to the kinesin family. This protein plays a role in the sonic hedgehog (SHH) signaling pathway through the regulation of GLI transcription factors. It functions as a negative regulator of the SHH pathway by preventing inappropriate activation of GLI2 in the absence of ligand, and as a positive regulator by preventing the processing of GLI3 into its repressor form. Mutations in this gene have been associated with various ciliopathies. [provided by RefSeq, Oct 2011]

KIF7 Gene-Disease associations (from GenCC):

• acrocallosal syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Orphanet
• neurodevelopmental disorder

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• hydrolethalus syndrome 2

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• hydrolethalus syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• multiple epiphyseal dysplasia, Al-Gazali type

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• orofaciodigital syndrome type 6

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.26).
• BP7: Synonymous conserved (PhyloP=1.17 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152259.4. 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
	TICRR	NM_152259.4	MANE Select	c.2808C>T	p.Ser936Ser	synonymous	Exon 15 of 22	NP_689472.3
	TICRR	NM_001308025.1		c.2805C>T	p.Ser935Ser	synonymous	Exon 15 of 22	NP_001294954.1	Q7Z2Z1-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TICRR	ENST00000268138.12	TSL:5 MANE Select	c.2808C>T	p.Ser936Ser	synonymous	Exon 15 of 22	ENSP00000268138.7	Q7Z2Z1-1
	TICRR	ENST00000560985.5	TSL:1	c.2805C>T	p.Ser935Ser	synonymous	Exon 15 of 22	ENSP00000453306.1	Q7Z2Z1-2
	TICRR	ENST00000929580.1		c.2808C>T	p.Ser936Ser	synonymous	Exon 15 of 21	ENSP00000599639.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.26
CADD	Benign	12
DANN	Benign	0.77
PhyloP100		1.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs768564459; hg19: chr15-90152119;