chr5-10250229-G-C

Variant names:

• chr5-10250229-G-C
• rs745933943
• ENST00000515390.5:c.-112G>C

Variant summary

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

The ENST00000515390.5(CCT5):​c.-112G>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000211 in 1,420,268 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 31)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CCT5 ENST00000515390.5 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.84
• Publications: 0 publications found

Genes affected

CCT5 (HGNC:1618): (chaperonin containing TCP1 subunit 5) The protein encoded by this gene is a molecular chaperone that is a member of the chaperonin containing TCP1 complex (CCT), also known as the TCP1 ring complex (TRiC). This complex consists of two identical stacked rings, each containing eight different proteins. Unfolded polypeptides enter the central cavity of the complex and are folded in an ATP-dependent manner. The complex folds various proteins, including actin and tubulin. Mutations in this gene cause hereditary sensory and autonomic neuropathy with spastic paraplegia (HSNSP). Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 5 and 13. [provided by RefSeq, Apr 2015]

CCT5 Gene-Disease associations (from GenCC):

• hereditary sensory and autonomic neuropathy with spastic paraplegia

  Inheritance: AR, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
• complex neurodevelopmental disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

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=-0.8).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCT5	NM_001306153.1	c.42+184G>C		intron_variant	Intron 1 of 10		NP_001293082.1
CCT5	NM_012073.5	c.-112G>C		upstream_gene_variant		ENST00000280326.9	NP_036205.1
CCT5	NM_001306154.2	c.-112G>C		upstream_gene_variant			NP_001293083.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCT5	ENST00000280326.9	c.-112G>C		upstream_gene_variant		1	NM_012073.5	ENSP00000280326.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000211 AC: 3 AN: 1420268 Hom.: 0 Cov.: 47 AF XY: 0.00000284 AC XY: 2 AN XY: 703156

African (AFR) AF: 0.00 AC: 0 AN: 32556

American (AMR) AF: 0.00 AC: 0 AN: 38212

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25452

East Asian (EAS) AF: 0.0000271 AC: 1 AN: 36964

South Asian (SAS) AF: 0.0000122 AC: 1 AN: 82152

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49824

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5718

European-Non Finnish (NFE) AF: 9.17e-7 AC: 1 AN: 1090506

Other (OTH) AF: 0.00 AC: 0 AN: 58884

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.070
DANN	Benign	0.53
PhyloP100		-2.8
PromoterAI		-0.14	Neutral

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: rs745933943; hg19: chr5-10250341;