NuRD nucleosome remodeling and deacetylase complex in Drosophila melanogaster

NuRD couples ATP-dependent nucleosome remodeling by the CHD-family ATPase Mi-2 with histone deacetylation by HDAC1 (Rpd3). The deacetylase core also contains the MTA homolog MTA1-like and the histone-binding protein Caf1-55 (p55), and the complex further contains MBD-like, the GATAD2 homolog Simjang and CDK2AP1. NuRD represses transcription, contributes to Polycomb-dependent silencing of Hox genes, and in Drosophila Mi-2 also forms the dMec complex with the zinc-finger protein MEP-1.

MODULE:dmel_nurd_complexDRAFTCONCRETEProtein Complexmodules/dmel_nurd_complex.yaml
NuRD complexGO:0016581
FB:FBgg0000275
FlyBase gene group NURD: Nucleosome remodeling deacetylase complex
FlyBase release FB2026_03 groups 8 D. melanogaster genes as nucleosome remodeling deacetylase complex (NURD); this module models that group.
GO:0016581
NuRD complex
GO term grounding the module as NuRD complex.

The split into remodeler, deacetylase core and MBD/GATAD2 module follows the conserved architecture of mammalian NuRD. MEP-1 is included because FlyBase lists it in the NuRD group; it is best characterised as the partner of Mi-2 in the dMec complex. FlyBase groups realized by this module: NURD (FBgg0000275). Participants were generated from the FlyBase gene-group membership and mapped to UniProtKB by projects/FLYBASE_GENE_GROUPS/generate_modules.py from module_specs/dmel_nurd_complex.yaml. Member genes with a gene review in this repository: Caf1-55.

5Nodes
4Parts
0Variant Sets
0Variants
4Annotons
0Connections

Derived QC

Recommended-field compliance

100.0% recommended fields populated

All recommended fields populated.

Module deep research

✗ none found

No MODULE:dmel_nurd_complex deep-research report alongside the module YAML.

Leaf nodes lacking representative members

✓ every leaf node grounds to a representative protein.

Template conformance

✓ every declared conforms_to bundle matches its template motif.

Function consistency and core coverage

0 gene-function check(s) reflected in core functions · 0 conflict(s) · 2 evidence or coverage gap(s) (2 comparison(s))

Retained noncore functions are reported separately; they do not require promotion to core functions. Support from representative genes does not establish conservation across the whole family. Missing reviews or identifiers leave a claim unverified.

AnnotonParticipantFunctionAssessment
nurd_remodeler_mi_2 Mi-2
UniProtKB:O97159
Gene
ATP-dependent chromatin remodeler activity
GO:0140658
Review Missing
No ai-review exists for this protein; its function and core-function coverage cannot yet be checked.
nurd_deacetylase_core_complex/hdac1 HDAC1
UniProtKB:Q94517
Complex Unit
histone deacetylase activity
GO:0004407
Review Missing
No ai-review exists for this protein; its function and core-function coverage cannot yet be checked.

Gene-review completeness (1/8 grounded genes reviewed)

0 complete review(s) · 1 with deep research · 7 missing review · 0 reviewed but lacking deep research

Gene Review Complete Deep research
MTA1-like A0A0B4KG70 ✗ — —
MBD-like A0A0B4KGZ0 ✗ — —
Caf1-55 Q24572 ✓ 90/91 ✓
CDK2AP1 M9PEA2 ✗ — —
simj M9PF79 ✗ — —
Mi-2 O97159 ✗ — —
MEP-1 Q0E8J0 ✗ — —
HDAC1 Q94517 ✗ — —

Details

Context
Drosophila melanogasterNCBITaxon:7227
chromatinGO:0000785
NuRD complexProtein Complexdmel_nurd_complex

Mi-2 remodeler and HDAC1 deacetylase complex that represses transcription.

NuRD complexGO:0016581
Context
Drosophila melanogasterNCBITaxon:7227
chromatinGO:0000785
Part 1: nucleosome remodeling
Mi-2 remodeling ATPaseProtein Complexnurd_remodeler

Annotons

Mi-2 Mi-2 remodeling ATPase
nurd_remodeler_mi_2
Participant: Gene Product: Mi-2
Gene Product:

Function

ATP-dependent chromatin remodeler activityGO:0140658
Part 2: histone deacetylation
Deacetylase coreProtein Complexnurd_deacetylase_core

Annotons

Deacetylase core
nurd_deacetylase_core_complex
Participant: Protein Complex: Deacetylase core
Protein Complex:
Deacetylase core
Active units:
HDAC1
Participant: Gene Product: HDAC1
Gene Product:
Function:
histone deacetylase activityGO:0004407
MTA1-like
Participant: Gene Product: MTA1-like
Gene Product:
Caf1-55
Participant: Gene Product: Caf1-55
Gene Product:
Part 3: bridge between deacetylase core and remodeler
MBD-like, Simjang and CDK2AP1Protein Complexnurd_mbd_module

Annotons

MBD-like, Simjang and CDK2AP1
nurd_mbd_module_complex
Participant: Protein Complex: MBD-like, Simjang and CDK2AP1
Protein Complex:
MBD-like, Simjang and CDK2AP1
Active units:
MBD-like
Participant: Gene Product: MBD-like
Gene Product:
simj
Participant: Gene Product: simj
Gene Product:
CDK2AP1
Participant: Gene Product: CDK2AP1
Gene Product:
Part 4: Mi-2-associated zinc-finger protein
MEP-1Protein Complexnurd_mep1

MEP-1 associates with Mi-2 and is also a subunit of the dMec complex.

Annotons

MEP-1 MEP-1
nurd_mep1_mep_1
Participant: Gene Product: MEP-1
Gene Product: