Standard

Holocarboxylase synthetase deficiency

HLCS · rs772810098

Strength of the evidence

3 / 4

ClinVar classifies it as disease-causing (or likely), reviewed at 2 of 4 stars.

How this is scored

4: ClinVar disease-causing, reviewed by an expert panel or a guideline (3–4 stars). 3: ClinVar, several labs agreeing (2 stars), or a genetic study at p ≤ 10−50. 2: ClinVar from one lab (1 star), or p ≤ 10−20. 1: ClinVar submitted without criteria (0 stars), or genome-wide significance (p ≤ 5×10−8). The higher of the two counts. It says how solid the evidence is, not whether it matters for a particular person.

What ClinVar records

Classification Likely pathogenic for Holocarboxylase synthetase deficiency; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 3 submitters), last evaluated 2025-09-24. ClinVar record 2676008 NM_001352514.2(HLCS):c.331-1G>C

Change history MyGeneLog™ keeps a copy of every weekly release from 2026-10-19 and compares them. This position's classification has not changed since.

What this is ClinVar's aggregate record for this position (as of its 2026-10-19 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.

What each result means

C/C No copy of the version ClinVar lists as likely disease-causing for Holocarboxylase synthetase deficiency. This is the usual result. (ClinVar VCV002676008, criteria provided, multiple submitters, no conflicts)
C/G One copy of the version ClinVar lists as likely disease-causing for Holocarboxylase synthetase deficiency. Some conditions need only one copy; for others, one copy makes a person a carrier who is usually healthy but can pass it on. A genetic counsellor can say which applies. (ClinVar VCV002676008, criteria provided, multiple submitters, no conflicts)
G/G Two copies of the version ClinVar lists as likely disease-causing for Holocarboxylase synthetase deficiency. A result like this should be confirmed by a medical genetic test and talked through with a doctor; consumer DNA files can misread rare variants. (ClinVar VCV002676008, criteria provided, multiple submitters, no conflicts)

Source: ClinVar VCV002676008, criteria provided, multiple submitters, no conflicts

Questions about rs772810098

What is rs772810098?

rs772810098 is a single position in the genome, in or near the HLCS gene. Published research associates it with holocarboxylase synthetase deficiency. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs772810098 mean I will get this?

No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.

Where does the information about rs772810098 come from?

ClinVar VCV002676008, criteria provided, multiple submitters, no conflicts. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

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Holocarboxylase synthetase deficiency (rs772810098). MyGeneLog™. https://www.mygenelog.com/variants/rs772810098

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