SC5D

sterol-C5-desaturase, the group of Fatty acid hydroxylase domain containing

Basic information

Region (hg38): 11:121292681-121313410

Previous symbols: [ "SC5DL" ]

Links

ENSG00000109929 ∙ NCBI:6309 ∙ OMIM:602286 ∙ HGNC:10547 ∙ Uniprot:O75845 ∙ AlphaFold ∙ GenCC ∙ jax ∙ Sfari ∙ GnomAD ∙ Pubmed ∙ ClinVar

Phenotypes

GenCC

Source: genCC

• lathosterolosis (Strong), mode of inheritance: AR
• lathosterolosis (Supportive), mode of inheritance: AR
• lathosterolosis (Strong), mode of inheritance: AR
• lathosterolosis (Definitive), mode of inheritance: AR

Clinical Genomic Database

Source: CGD

Condition	Inheritance	Intervention Categories	Intervention/Rationale	Manifestation Categories	References
Lathosterolosis	AR	General	Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing	Biochemical; Craniofacial; Gastrointestinal; Musculoskeletal; Neurologic	12189593; 12812989; 17853487; 19123163
Lipid storage has been reported as being aggravated by supplemental cholesterol

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the SC5D gene.

• not_provided (80 variants)
• Lathosterolosis (28 variants)
• Inborn_genetic_diseases (27 variants)
• not_specified (3 variants)
• SC5D-related_disorder (2 variants)

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the SC5D gene is commonly pathogenic or not. These statistics are base on transcript: NM_000006918.5. Only rare variants are included in the table.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Effect	Pathogenic	Likely pathogenic	VUS	Likely benign	Benign	Sum
synonymous			2	23		25
missense	3	2	52	5	2	64
nonsense		1	4			5
start loss						0
frameshift		1	4			5
splice donor/acceptor (+/-2bp)			3			3
Total	3	4	65	28	2

Highest pathogenic variant AF is 0.00010295493

GnomAD

Source: gnomAD

Gene	Type	Bio Type	Transcript	Coding Exons	Length
SC5D	protein_coding	protein_coding	ENST00000264027	4	16242

pLI Probability LOF Intolerant	pRec Probability LOF Recessive	Individuals with no LOFs	Individuals with Homozygous LOFs	Individuals with Heterozygous LOFs	Defined	p
		125708	0	37	125745	0.000147

	Z-Score	Observed	Expected	Observed/Expected	Mutation Rate	Total Possible in Transcript
Missense	0.721	139	165	0.842	0.00000861	1994
Missense in Polyphen		47	61.176	0.76827		787
Synonymous	0.749	51	58.3	0.875	0.00000303	543
Loss of Function	1.66	6	12.3	0.490	6.73e-7	140

LoF frequencies by population

Ethnicity	Sum of pLOFs	p
African & African-American	0.000174	0.000174
Ashkenazi Jewish	0.00	0.00
East Asian	0.000163	0.000163
Finnish	0.0000924	0.0000924
European (Non-Finnish)	0.000211	0.000211
Middle Eastern	0.000163	0.000163
South Asian	0.0000653	0.0000653
Other	0.00	0.00

dbNSFP

Source: dbNSFP

• Function: FUNCTION: Catalyzes a dehydrogenation to introduce C5-6 double bond into lathosterol.
• Disease: DISEASE: Lathosterolosis (LATHST) [MIM:607330]: Autosomal recessive disorder characterized by a complex phenotype, including multiple congenital anomalies, mental retardation, and liver disease. {ECO:0000269|PubMed:12189593, ECO:0000269|PubMed:12812989}. Note=The disease is caused by mutations affecting the gene represented in this entry.
• Pathway: Steroid biosynthesis - Homo sapiens (human);Simvastatin Action Pathway;Pravastatin Action Pathway;Atorvastatin Action Pathway;Hyper-IgD syndrome;Cholesteryl ester storage disease;Lysosomal Acid Lipase Deficiency (Wolman Disease);Alendronate Action Pathway;Rosuvastatin Action Pathway;Lovastatin Action Pathway;Mevalonic aciduria;Wolman disease;Risedronate Action Pathway;Cerivastatin Action Pathway;Pamidronate Action Pathway;Fluvastatin Action Pathway;Smith-Lemli-Opitz Syndrome (SLOS);Chondrodysplasia Punctata II, X Linked Dominant (CDPX2);CHILD Syndrome;Desmosterolosis;Hypercholesterolemia;Steroid Biosynthesis;Zoledronate Action Pathway;Ibandronate Action Pathway;Cholesterol Biosynthesis;Activation of gene expression by SREBF (SREBP);Metabolism of lipids;Regulation of cholesterol biosynthesis by SREBP (SREBF);Squalene and cholesterol biosynthesis;Metabolism;cholesterol biosynthesis III (via desmosterol);cholesterol biosynthesis II (via 24,25-dihydrolanosterol);superpathway of cholesterol biosynthesis;Metabolism of steroids;cholesterol biosynthesis I;Cholesterol biosynthesis via desmosterol;Steroids metabolism;Cholesterol biosynthesis via lathosterol;Cholesterol biosynthesis;Activation of gene expression by SREBF (SREBP) (Consensus)

Recessive Scores

• pRec: 0.151

Intolerance Scores

• rvis_EVS: -0.25
• rvis_percentile_EVS: 35.75

Essentials

• essential_gene_CRISPR: N
• essential_gene_CRISPR2: N
• essential_gene_gene_trap: N

Gene Damage Prediction

	All	Recessive	Dominant
Mendelian	Medium	Medium	Medium
Primary Immunodeficiency	Medium	Medium	Medium
Cancer	Medium	Medium	Medium

Gene ontology

• Biological process: lipid metabolic process;sterol biosynthetic process;cholesterol biosynthetic process via desmosterol;cholesterol biosynthetic process via lathosterol;regulation of cholesterol biosynthetic process;oxidation-reduction process
• Cellular component: endoplasmic reticulum membrane;integral component of membrane
• Molecular function: C-5 sterol desaturase activity;iron ion binding