Q96SN8: CDK5 regulatory subunit-associated protein 2 (CDK5RAP2)

CDK5 regulatory subunit-associated protein 2 (CDK5RAP2) is a 1893-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q96SN8.

Gene
CDK5RAP2
Organism
Homo sapiens
Length
1893 residues
Mean pLDDT
59.1
Model
AF-Q96SN8-F1 v6
Model created
1 Aug 2025
PDB structures
4

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Model confidence (pLDDT)

The mean pLDDT of this model is 59.1 (low overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate3%
70 to 90Confident: backbone generally right44%
50 to 70Low: treat with caution10%
Below 50Very low: often disordered regions44%

What pLDDT means and how to read it

Function

Potential regulator of CDK5 activity via its interaction with CDK5R1 (PubMed:15164053). Negative regulator of centriole disengagement (licensing) which maintains centriole engagement and cohesion. Involved in regulation of mitotic spindle orientation (By similarity). Plays a role in the spindle checkpoint activation by acting as a transcriptional regulator of both BUBR1 and MAD2 promoter (PubMed:19282672). Together with EB1/MAPRE1, may promote microtubule polymerization, bundle formation, growth and dynamics at the plus ends (PubMed:18042621, PubMed:17959831, PubMed:19553473). Regulates centrosomal maturation by recruitment of the gamma-tubulin ring complex (gTuRC) onto centrosomes…

Subunit structure

Homodimer (PubMed:39321809). Interacts with CDK5R1 (p35 form) (By similarity). CDK5RAP1, CDK5RAP2 and CDK5RAP3 show competitive binding to CDK5R1 (By similarity). May form a complex with CDK5R1 and CDK5 (By similarity). Interacts with pericentrin/PCNT; the interaction is leading to centrosomal and Golgi localization of CDK5RAP2 and PCNT (PubMed:20466722). Interacts with AKAP9; the interaction…

Subcellular location

Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, Golgi apparatus, Cytoplasm, Cytoplasm, cytoskeleton

Disease associations

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
8RX1EM3.57 ÅG/H/g/h/i/j/s/t/u/v=51-116
9G40EM4.3 Åu/v=1-1893
6X0VEM4.5 ÅG/H=1-1893
9H9PEM4.5 ÅA/G=1-1893

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