Cited by 160Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsMicrotubule and mitosis dynamics

Cytoskeletal signaling: is memory encoded in microtubule lattices by CaMKII phosphorylation?

Open access
Craddock, Travis J. A., Tuszynski, Jack A., Hameroff, Stuart·2012·PLoS Computational Biology

Abstract

Memory is attributed to strengthened synaptic connections among particular brain neurons, yet synaptic membrane components are transient, whereas memories can endure. This suggests synaptic information is encoded and 'hard-wired' elsewhere, e.g. at molecular levels within the post-synaptic neuron. In long-term potentiation (LTP), a cellular and molecular model for memory, post-synaptic calcium ion (Ca²⁺) flux activates the hexagonal Ca²⁺-calmodulin dependent kinase II (CaMKII), a dodacameric holoenzyme containing 2 hexagonal sets of 6 kinase domains. Each kinase domain can either phosphorylate substrate proteins, or not (i.e. encoding one bit). Thus each set of extended CaMKII kinases can potentially encode synaptic Ca²⁺ information via phosphorylation as ordered arrays of binary 'bits'. Candidate sites for CaMKII phosphorylation-encoded molecular memory include microtubules (MTs), cylindrical organelles whose surfaces represent a regular lattice with a pattern of hexagonal polymers of the protein tubulin. Using molecular mechanics modeling and electrostatic profiling, we find that spatial dimensions and geometry of the extended CaMKII kinase domains precisely match those of MT hexagonal lattices. This suggests sets of six CaMKII kinase domains phosphorylate hexagonal MT lattice neighborhoods collectively, e.g. conveying synaptic information as ordered arrays of six "bits", and thus "bytes", with 64 to 5,281 possible bit states per CaMKII-MT byte. Signaling and encoding in MTs and other cytoskeletal structures offer rapid, robust solid-state information processing which may reflect a general code for MT-based memory and information processing within neurons and other eukaryotic cells.

AI snapshot

Written from the paper’s full text.

TL;DR

The paper proposes that activated CaMKII holoenzymes can bind microtubule lattices and encode synaptic information as ordered phosphorylation patterns, with geometry and electrostatics matching hexagonal tubulin arrays. It estimates capacities of 64, 729, or 5,281 states per CaMKII–MT neighborhood and argues this could provide a robust, low-cost molecular memory code.

Key findings

  • Activated CaMKII’s six extended kinase domains geometrically match MT A- and B-lattice hexagonal tubulin neighborhoods; the CaMKII hexagon is approximately 20 nm in breadth, and A-lattice matching is precise, while B-lattice matching requires slightly greater linker flexibility.
  • Electrostatic complementarity yields an estimated attraction of 10 kT (6 kcal/mol) per kinase–tubulin monomer interaction, up to 60 kT (36 kcal/mol) when all six kinase regions are involved.
  • Each kinase can convey one bit (phosphorylation vs. no phosphorylation), so six kinases can act as a 6-bit “byte”; the paper calculates 64 possible states for binary A-lattice patches, 729 states for ternary A-lattice patches, and 5,281 states for ternary B-lattice patches.
  • Maximal encoding across the brain is estimated at 10^19 ATP/second, about 2% of the brain’s total energy consumption, and the authors suggest phosphorylation patterns could regulate C-terminal tail states, MAP attachment, motor protein transport, signaling, and Boolean logic gates.

Methods

  • Computational molecular modeling and electrostatic profiling, not experimental wet-lab work.
  • Homology models of human αCaMKII domains were built using MODELLER 9V6 with PDB templates 1HKX and 2VZ6; tubulin models used repaired PDB 1JFF/1TUB and templates for TUBA1A and TUBB3.
  • MT A- and B-lattice structures were built in PyMOL using published MT geometry; electrostatics were analyzed with PROPKA/PDB2PQR and APBS Poisson-Boltzmann calculations at <1 Å grid spacing, with isosurfaces at ±0.5 kT/e.

Limitations

  • The paper states no formal limitations section.
  • Evident from the text: the work is purely computational/theoretical, with no experimental validation of CaMKII–MT binding, phosphorylation patterns, or memory encoding.
  • Evident from the text: the exact CaMKII phosphorylation site(s) on tubulin are unknown, and the information-capacity scenarios are explicitly hypothetical.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1371/journal.pcbi.1002421

Cites

95 of 95 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 16 cited sources checked · 0 supported · 0 flagged

  • Findingreasoning

    The total number of possible states for the B lattice neighborhood is 5281 unique states.

    “The total number of possible states for the B lattice neighborhood is thus 36–28−8(27) = 5281 unique states.”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: Each extended kinase can either phosphorylate at the S-T site on a tubulin substrate, or not.
  • Findingreasoning

    Six possible sites on the A-lattice yield 3^6 = 729 possible states.

    “Six possible sites on the A-lattice yield 36 = 729 possible states.”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: Each extended kinase can either phosphorylate at the S-T site on a tubulin substrate, or not.
  • Findingown data

    The electrostatic pattern of tubulin dimers on a MT surface is complementary to that formed by the 6 CaMKII holoenzyme kinase domains.

    “These electrostatic fingerprints are complementary to those formed by the 6 CaMKII holoenzyme kinase domains making the two natural substrates for interaction.”
    Quote in the paperSubstantial claim
  • Findingown data

    Spatial dimensions and geometry of the extended CaMKII kinase domains precisely match those of MT hexagonal lattices.

    “Using molecular mechanics modeling and electrostatic profiling, we find that spatial dimensions and geometry of the extended CaMKII kinase domains precisely match those of MT hexagonal lattices.”
    Quote in the paperSubstantial claim
  • Findingown data

    There are two plausible sites for direct phosphorylation of tubulin by a CaMKII kinase domain.

    “We also demonstrate two plausible sites for direct phosphorylation of tubulin by a CaMKII kinase domain, and calculate binding energies in the range of 6 to 36 kcal/mol per CaMKII-tubulin phosphorylation event.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. 14
  • May combine two claims. 12
  • Classified as probably not a substantial claim.

    Findingown data

    Figures 9 and 10 demonstrate an AND gate and an XOR gate in which MAPs convey inputs, with output along tubulin pathways.

    “Figures 9 and 10 demonstrate two types of Boolean logic gates, an AND gate and an exclusive OR gate (XOR) in which MAPs convey inputs, with output along tubulin pathways.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingreasoning

    Electrostatic attraction for each kinase-monomer interaction is 10 kT (6 kcal/mol) lower bound, reaching a maximum bound of 60 kT (36 kcal/mol) when all 6 kinase regions are involved.

    “Considering the positive potential region of an individual kinase domain to be 1 kT/e and the negative surface of an individual tubulin monomer to be −10 e gives an electrostatic attraction of 10 kT, or 6 kcal/mol at 310 K, for each kinase-monomer interaction, the lower bound of binding. This attraction reaches a maximum bound of 60 kT (36 kcal/mol) when all 6 kinase regions are involved.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Findingnone given

    Figures 11 and 12 show AND and XOR gates in which MAPs convey output of inputs and processes in tubulins within the MT.

    “Figures 11 and 12 show AND and XOR gates in which MAPs convey output of inputs and processes in tubulins within the MT.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingreasoning

    There are 2^6 possible encoding states for a single CaMKII-MT interaction resulting in the storage of 64 bits of information.

    “Thus, there are 26 possible encoding states for a single CaMKII-MT interaction resulting in the storage of 64 bits of information.”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: Each extended kinase can either phosphorylate at the S-T site on a tubulin substrate, or not.
  • May combine two claims.

    Findingown data

    Complementary electrostatics and mutual attraction exist between individual CaMKII kinase domains and tubulin surfaces.

    “We show, first, complementary electrostatics and mutual attraction between individual CaMKII kinase domains and tubulin surfaces.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    Signaling and encoding in MTs and other cytoskeletal structures offer rapid, robust solid-state information processing which may reflect a general code for MT-based memory and information processing within neurons and other eukaryotic cells.

    “Signaling and encoding in MTs and other cytoskeletal structures offer rapid, robust solid-state information processing which may reflect a general code for MT-based memory and information processing within neurons and other eukaryotic cells.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S2 (checkable), S4 (based).

    Interpretationreasoning

    Signals propagating through MT-MAP logic circuits may extend throughout cytoskeletal networks, regulating synaptic function, cognition and behavior.

    “Signals propagating through MT-MAP logic circuits may extend throughout cytoskeletal networks, regulating synaptic function, cognition and behavior.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationreasoning

    Synaptic information is conveyed as ordered arrays of six bits, and thus bytes, with 64 to 5,281 possible bit states per CaMKII-MT byte.

    “conveying synaptic information as ordered arrays of six “bits”, and thus “bytes”, with 64 to 5,281 possible bit states per CaMKII-MT byte.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    Information pertinent to memory must be stored elsewhere than transient synaptic membrane components, yet remain able to regulate synaptic plasticity.

    “Therefore, information pertinent to memory must be stored elsewhere, yet remain able to regulate synaptic plasticity.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Synaptic membrane components are transient, whereas memories can endure.
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Simple rule-based interactions among neighbor cell states updating at discrete time steps can lead to complex patterns, computation and self-organization in cellular automata.

    “Simple rule-based interactions among neighbor cell states updating at discrete time steps can lead to complex patterns, computation and self-organization in cellular automata.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [59] J Von Neumann, 1951, The general and logical theory of automata.

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    CaMKII is a dodecameric holoenzyme containing two hexagonal sets of six kinase domains.

    “CaMKII has 12 kinase domains (6 on one side, 6 on the other), normally folded tightly in an inactive state to an association domain.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [10] A Hudmon, 2002, Structure–function of the multifunctional Ca<sup>2+</sup>/calmodulin-dependent protein kinase II., Biochem J source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Reaction-diffusion systems include periodic waves and hexagonal patterns, which oscillate, undergo phase transitions and are capable of information processing.

    “Reaction-diffusion systems include periodic waves and hexagonal patterns, which oscillate, undergo phase transitions and are capable of information processing [41].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [41] V Castets, 1990, Experimental evidence of sustained standing Turing-type nonequilibrium chemical pattern., Phys Rev Lett source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing), S4 (based).

    Interpretationreasoning

    The hexagonal bytes and trytes suggested here may reflect a real-time biomolecular information code akin to the genetic code.

    “As MTs and CaMKII are widely distributed in eukaryotic cells, the hexagonal bytes and trytes suggested here may reflect a real-time biomolecular information code akin to the genetic code.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: MTs and CaMKII are widely distributed in eukaryotic cells.
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    In proposed microtubule automata, tubulin states interact and update coherently at discrete time steps attributed to theorized or experimentally observed coherent MT resonances, potentially resulting in millions of synchronized updates per second.

    “In such proposed microtubule automata, tubulin states interact and update coherently at discrete time steps attributed to theorized [62] or experimentally-observed coherent MT resonances, e.g. in the low megahertz range [53], potentially resulting in millions of synchronized updates per second [63].”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [62] H Fröhlich, 1968, Long-range coherence and energy storage in biological systems., International J Quant Chem source

      Not checked in the free run.

    • cites [53] S Sahu, 2012, Radio-frequency-induced ultrafast assembly of microtubules and their length-independent electronic properties., Nature Mater

      Not checked in the free run.

    • cites [63] R Penrose, 2011, Consciousness in the universe., J Cosmology

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    In the brain, neuronal network structure, temporal dynamics, and representation of mental states are all scale-free, with self-similar patterns repeating at various temporal and spatial scales and locations.

    “In the brain, evidence suggests neuronal network structure, temporal dynamics, and representation of mental states are all ‘scale-free’, with self-similar patterns repeating at various temporal and spatial scales and locations [68]–[71].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [68]–[71]

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Cortical neuron representation maps are organized hexagonally.

    “Cortical neurons representation maps are organized hexagonally [65]”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [65] SB Paik, 2011, Retinal origin of orientation maps in visual cortex., Nature Neurosci source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    MTs have been modeled as von Neumann-type cellular/molecular automata in which tubulin subunits interact with neighbor tubulin states by rules based on dipole coupling strengths.

    “For example MTs have been modeled as von Neumann-type cellular/molecular automata (‘microtubule automata’) in which tubulin subunits interact with neighbor tubulin states by rules based on dipole coupling strengths [50], [61].”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [50] S Rasmussen, 1990, Computational connectionism within neurons: A model of cytoskeletal automata subserving neural networks., Physica D source

      Not checked in the free run.

    • cites [61] S Smith, 1984, Cellular automata in cytoskeletal lattice proteins., Physica D source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Turing patterns have been suggested in biological systems across scale, from intra-cellular processes to neuronal network organization.

    “Turing patterns have been suggested in biological systems across scale, e.g. from intra-cellular processes [42] to neuronal network organization.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [42] DE Strier, 2007, Turing Patterns Inside Cells., PLoS ONE source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Simulations show oscillating wedge-shaped, triangular and hexagonal patterns of tubulin states, which evolve, compute and can learn.

    “Simulations show oscillating wedge-shaped, triangular and hexagonal patterns of tubulin states, which evolve, compute and can learn [50].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [50] S Rasmussen, 1990, Computational connectionism within neurons: A model of cytoskeletal automata subserving neural networks., Physica D source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Grid cells in entorhinal cortex record spatial location as apparent hexagonal maps, with different spatial scales at different layers of entorhinal cortex.

    “‘grid cells’ in entorhinal cortex record spatial location as apparent hexagonal maps, with different spatial scales at different layers of entorhinal cortex [66], [67].”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [66] BL McNaughton, 2006, Path integration and the neural basis of the ‘cognitive map’., Nature Rev source

      Not checked in the free run.

    • cites [67] T Hafting, 2005, Microstructure of a spatial map in the entorhinal cortex., Nature source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Stable patterns of molecular concentrations could emerge through reaction, diffusion and inhibition.

    “In 1953 Alan Turing [64] showed that stable patterns of molecular concentrations could emerge through reaction, diffusion and inhibition.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [64] AM Turing, 1953, The chemical basis of morphogenesis., Phil Trans R Soc B source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable), S4 (based). May combine two claims.

    Interpretationreasoning

    Such encoded information engages in ongoing MT information processes supporting cognition and behavior, possibly by generating scale-free interference patterns via reaction-diffusion or other mechanisms.

    “We suggest such encoded information engages in ongoing MT information processes supporting cognition and behavior, possibly by generating scale-free interference patterns via reaction-diffusion or other mechanisms.”
    Quote in the paperNot a substantial claim
22 of 22
  • The paper relies on this without support.

    Synaptic membrane components are transient, whereas memories can endure.

    “synaptic receptors and channel proteins are transient, being synthesized and degraded in the protein lifecycle, and yet memories can last lifetimes.”
  • The authors state this as an assumption.

    Each extended kinase can either phosphorylate at the S-T site on a tubulin substrate, or not.

    “If each extended kinase can either phosphorylate at the S-T site on a tubulin substrate, or not, the process effectively conveys one bit of information”
  • The paper relies on this without support.

    The combination of XOR and AND logic gates forms a universal set for computation.

    “The combination of XOR and AND logic gates forms a universal set for computation in which all other logic gates (NOT, OR etc.) can be conceived.”
  • The paper relies on this without support.

    CaMKII activation represents synaptic information.

    “As CaMKII activation represents synaptic information, subsequent phosphorylation by CaMKII of a particular substrate may encode memory, e.g. as ordered arrays of 6 bits (one ‘byte’).”
  • The paper relies on this without support.

    MTs and CaMKII are widely distributed in eukaryotic cells.

    “As MTs and CaMKII are widely distributed in eukaryotic cells, the hexagonal bytes and trytes suggested here may reflect a real-time biomolecular information code akin to the genetic code.”
  • The paper relies on this without support.

    Each CaMKII kinase domain can phosphorylate a substrate or not, conveying 1 bit of information.

    “When activated by synaptic calcium influx, the snowflake-shaped CaMKII extends sets of 6 foot-like kinase domains outward, each domain able to phosphorylate a substrate or not (thus convey 1 bit of information).”
  • The paper relies on this without support.

    Each kinase domain can phosphorylate one tubulin dimer, either its α-monomer or its β-monomer equivalently.

    “Each kinase domain can phosphorylate one tubulin dimer, either its α- monomer or its β- monomer equivalently.”
  • The paper relies on this without support.

    There are approximately 10^19 tubulins in the brain.

    “There are approximately 1019 tubulins in the brain.”
  • The authors state this as an assumption.

    Input information may be encoded and processed in hexagonal microtubule lattices.

    “Assuming input information may be encoded and processed in hexagonal microtubule lattices, how could such information be expressed as output to regulate cytoplasmic and membrane activities?”
  • The paper relies on this without support.

    How information is shared or encoded among biological levels in a common framework is largely unknown.

    “How information is shared or encoded among these levels in a common framework is largely unknown.”
10 of 10

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Consistent with the Orch OR account, the cytoskeleton does play a major role in memory.

    “Consistent with the Orch OR account, the cytoskeleton does play a major role in memory (Craddock et al. 2012).”

    From A quantum microtubule substrate of consciousness is experimentally supported and solves the binding and epiphenomenalism problems (2025) · cites this paper as Craddock et al. 2012

    The Introduction (page unavailable) says deficits in cytoskeletal function affect learning and memory and describes correlations between microtubule changes and memory. But the Discussion’s Conclusion (page unavailable) presents a proposed mechanism and suggests it may support cognition; it does not establish the stronger claim that the cytoskeleton plays a major role in memory. The reference to Orch OR is framing in the citing sentence, not a finding established by this source. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Synaptic inputs can register information in dendritic-somatic MTs in brain neurons by metabotropic receptors, MAP2, and CaMKII, a hexagonal holoenzyme able to convey calcium ion influx to MT lattices by phosphorylation.

    “Synaptic inputs can register information in dendritic-somatic MTs in brain neurons by metabotropic receptors, MAP2, and CaMKII, a hexagonal holoenzyme able to convey calcium ion influx to MT lattices by phosphorylation (Fig. 4 [64]).”

    From Consciousness in the universe (2014) · cites this paper as [64]

    The Introduction describes synaptic calcium influx activating CaMKII, and the Discussion’s Conclusion proposes that CaMKII phosphorylation can encode synaptic information in dendritic and somatic microtubule lattices. The Results describe CaMKII’s hexagonal structure, while the Introduction identifies MAP2 on dendritic microtubules. The paper refers to postsynaptic receptors but does not identify metabotropic receptors as the route in this proposed mechanism. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Dendritic-somatic MTs are capped by special MAPs that prevent de-polymerization, and are thus stable and suitable for long term information encoding and memory.

    “Dendritic-somatic MTs are capped by special MAPs that prevent de-polymerization [63], and are thus stable and suitable for long term information encoding and memory (Fig. 4 [64]).”

    From Consciousness in the universe (2014) · cites this paper as [64]

    The Introduction (LTP, CaMKII and Microtubules; page unavailable) says dendritic and cell-body microtubules are capped and stabilized by specialized MAPs, and discusses information storage in microtubules. But it describes memory stored in microtubules as short-term and proposes further encoding in neurofilaments for long-term memory. It therefore does not fully support the cited clause’s implication that stable microtubules themselves provide long-term memory storage. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Six-bit pattern is described as storing 64 bits

    Major

    Six binary phosphorylation sites provide 64 possible states, but encode 6 bits, as the paper states elsewhere. The 64-bit claim confuses the number of states with the number of bits.

  • Six-kinase binding energy is described as a per-event value

    Minor

    The results give 6 kcal/mol for each kinase-monomer interaction and 36 kcal/mol only when all six kinase regions are involved. The summary instead presents the full 6-36 kcal/mol range as applying per phosphorylation event.

  • Ternary-state summary assigns two states to α-tubulin

    Minor

    The summary assigns both phosphorylation states to the α-monomer, whereas the earlier definition assigns one to β-tubulin and the other to α-tubulin.

3 of 3

Cites

Flagged first, then by citations

2 of the 97 references couldn’t be matched to a known paper.

Research works printed but not linked: 3

  1. J Cronly-Dillon, 1974, The possible involvement of brain microtubules in memory fixation., J Exp Biol, 61, 443, 10.1242/jeb.61.2.443 · DOI
  2. NJ Woolf, 1999, Hippocampal microtubule-associated protein-2 alterations with contextual memory., Brain Res, 821, 241
  3. S Sahu, 2012, Radio-frequency-induced ultrafast assembly of microtubules and their length-independent electronic properties., Nature Mater

Cited by

Sorted by citations

Authors
Craddock, T. J. A., Tuszynski, J. A., & Hameroff, S.
Affiliations
  • University of Alberta (CA)
  • University of Arizona (US)
Corresponding author
Craddock, Travis J. A.
Venue
PLoS Computational Biology
Published
2012-03-08
Volume
8
Issue
3
Pages
e1002421
ISSN
  • 1553-734X (ISSN-L)
  • 1553-7358
OpenAlex
W2042941423
Cited by
160
References
97
Citations by year
2026: 10 · 2025: 13 · 2024: 10 · 2023: 10 · 2022: 9 · 2021: 9 · 2020: 9 · 2019: 9 · 2018: 5 · 2017: 11 · 2016: 8 · 2015: 17 · 2014: 13 · 2013: 16 · 2012: 11
FWCI
7.51
Type
journal article
Language
en
Open access
Locations
  • PLoS Computational Biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • PORTO@Iris (submittedVersion)
  • NSUWorks (Nova Southeastern University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Advanced Education, Government of Alberta
  • Alberta Cancer Foundation
  • Allard Foundation
  • Natural Sciences and Engineering Research Council of Canada
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
Keywords
CaMKII, microtubules, memory encoding, long-term potentiation, synaptic plasticity, phosphorylation, cytoskeletal signaling, molecular memory, calcium signaling
MeSH terms
Computer Simulation, Cytoskeleton, Humans, Memory, Models, Biological, Models, Chemical, Phosphorylation, Signal Transduction, Calcium-Calmodulin-Dependent Protein Kinase Type 2

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-10.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-10.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review