CHAMP1

Chr 13

chromosome alignment maintaining phosphoprotein 1

Also known as: C13orf8, CAMP, CHAMP, MRD40, NEDHILD, ZNF828

This gene encodes a zinc finger protein that functions as a regulator of chromosome segregation in mitosis. The encoded protein is required for correct alignment of chromosomes on the metaphase plate, and plays a role in maintaining the attachment of sister kinetochores to microtubules from opposite spindle poles. Mutations in this gene are associated with an autosomal dominant form of intellectual disability. [provided by RefSeq, Jul 2017]

ResearchGenerating clinical summary…

Clinical highlights

Gene-disease validity (ClinGen)
complex neurodevelopmental disorder · ADDefinitivesufficient evidence for diagnostic panels
Interpreting a novel variant
Loss of function is the curated mechanism (Gene2Phenotype) and the gene is intolerant of it in the population — truncating, frameshift and canonical splice variants carry more prior weight here than missense.Curated gene-level mechanism — a prior for triage, not a per-variant call.
1
Active trials
8
Pubs (1 yr)
P/LP submissions
P/LP missense
0.27
LOEUF· LoF intol.
LOF
Mechanism· G2P
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint?
0.27LOEUF
pLI 0.992
Z-score 4.08
OE 0.09 (0.030.27)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint?
0.14Z-score
OE missense 0.98 (0.911.06)
420 obs / 428.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.09 (0.030.27)
00.351.4
Missense OE?0.98 (0.911.06)
00.61.4
Synonymous OE?1.15
01.21.6
LoF obs/exp: 2 / 23.2Missense obs/exp: 420 / 428.1Syn Z: -1.49

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

CHAMP1 · protein map & ClinVar variants

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