SLX1B

Chr 16

structure-specific endonuclease subunit SLX1B

Also known as: GIYD2

The protein functions as the catalytic subunit of the SLX1-SLX4 structure-specific endonuclease, which resolves DNA secondary structures and Holliday junctions during DNA repair and recombination processes. Pathogenic variants in SLX1B have not been definitively associated with human disease in the medical literature. The gene shows tolerance to loss-of-function variants (pLI = 0.04, LOEUF = 1.72), suggesting that complete loss of function may be compatible with normal development.

OMIMResearchSummary from RefSeq, UniProt
LOEUF 1.72
Clinical SummarySLX1B
Population Constraint (gnomAD)
Low constraint (pLI 0.04) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
77 unique Pathogenic / Likely Pathogenic· 19 VUS of 98 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.72LOEUF
pLI 0.044
Z-score 0.56
OE 0.66 (0.261.72)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
1.27Z-score
OE missense 0.26 (0.140.51)
6 obs / 23.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.66 (0.261.72)
00.351.4
Missense OE0.26 (0.140.51)
00.61.4
Synonymous OE0.21
01.21.6
LoF obs/exp: 2 / 3.0Missense obs/exp: 6 / 23.2Syn Z: 1.90

ClinVar Variant Classifications

98 submitted variants in ClinVar

Classification Summary

Pathogenic70
Likely Pathogenic7
VUS19
Benign1
70
Pathogenic
7
Likely Pathogenic
19
VUS
1
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
70
0
70
Likely Pathogenic
0
0
7
0
7
VUS
0
10
9
0
19
Likely Benign
0
0
0
0
0
Benign
0
0
1
0
1
Total01087097

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

SLX1B · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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