General Information of the Protein
Protein ID
PT06540
Protein Name
Tubulin beta-3 chain
Secondarily
Protein Name
Tubulin beta-4 chain
Tubulin beta-III
Gene Name
TUBB3
Secondarily
Gene Name
TUBB4
Sequence
MREIVHIQAGQCGNQIGAKFWEVISDEHGIDPSGNYVGDSDLQLERISVYYNEASSHKYVPRAILVDLEPGTMDSVRSGAFGHLFRPDNFIFGQSGAGNNWAKGHYTEGAELVDSVLDVVRKECENCDCLQGFQLTHSLGGGTGSGMGTLLISKVREEYPDRIMNTFSVVPSPKVSDTVVEPYNATLSIHQLVENTDETYCIDNEALYDICFRTLKLATPTYGDLNHLVSATMSGVTTSLRFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTARGSQQYRALTVPELTQQMFDAKNMMAACDPRHGRYLTVATVFRGRMSMKEVDEQMLAIQSKNSSYFVEWIPNNVKVAVCDIPPRGLKMSSTFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVSEYQQYQDATAEEEGEMYEDDEEESEAQGPK
    Show/Hide
Organism
Homo sapiens, Human
Protein Classification
Structural protein
Function
Tubulin is the major constituent of microtubules, a cylinder consisting of laterally associated linear protofilaments composed of alpha- and beta-tubulin heterodimers (PubMed:34996871). Microtubules grow by the addition of GTP-tubulin dimers to the microtubule end, where a stabilizing cap forms (PubMed:34996871). Below the cap, tubulin dimers are in GDP-bound state, owing to GTPase activity of alpha-tubulin (PubMed:34996871). TUBB3 plays a critical role in proper axon guidance and maintenance (PubMed:20074521). Binding of NTN1/Netrin-1 to its receptor UNC5C might cause dissociation of UNC5C from polymerized TUBB3 in microtubules and thereby lead to increased microtubule dynamics and axon repulsion (PubMed:28483977). Plays a role in dorsal root ganglion axon projection towards the spinal cord (PubMed:28483977).
    Show/Hide
Uniprot ID
Primary ID:
Q13509

Secondarily ID:
A8K854
Q9BTZ0
Q9BW10
    Show/Hide
Ensembl ID
ENSG00000258947
HGNC ID
HGNC:20772
Subcellular Location
Cytoplasm
Cytoskeleton
Cell projection
Growth cone
Cell projection
Lamellipodium
Cell projection
Filopodium
Map of Molecular Bioactivity Related to the Protein
Map of Molecular Bioactivity Related to the Protein

Protein
Cell Line
Compound

Bioactivity Value:

<= 0.1 μM
> 0.1 μM and <= 10 μM
> 10 μM
Imprecise Activity
Table of Molecular Bioactivities Related to the Protein
Cell Line ID: CL000017 , HeLa
Compound ID Compound Name Compound Formula
CP0421570
N-(5-methoxynaphthalen-2-yl)-N,2-dimethyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine
   Show/Hide
C20H21N3O
 1
1
IC50 = 2.6 nM
   TI
   LI
   LO
   TS
CP0034470
(-)-combretastatin
   Show/Hide
C18H20O5
 2
1
IC50 = 5.2 nM
   TI
   LI
   LO
   TS
2
IC50 = 5.7 nM
   TI
   LI
   LO
   TS
CP0064592
[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-diacetyloxy-15-[(2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoyl]oxy-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate
   Show/Hide
C47H51NO14
 2
1
IC50 = 7.7 nM
   TI
   LI
   LO
   TS
2
IC50 = 9.2 nM
   TI
   LI
   LO
   TS
CP0551819
N-(4-methoxyphenyl)-N,2-dimethyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine
   Show/Hide
C16H20ClN3O
 1
1
IC50 = 9.6 nM
   TI
   LI
   LO
   TS
CP0552799
4-N-(5-methoxynaphthalen-2-yl)-4-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine-2,4-diamine
   Show/Hide
C19H20N4O
 1
1
IC50 = 9.6 nM
   TI
   LI
   LO
   TS
CP0465284
4-N-(4-ethoxyphenyl)-4-N-methyl-9H-pyrimido[4,5-b]indole-2,4-diamine
   Show/Hide
C19H19N5O
 1
1
IC50 = 18.8 nM
   TI
   LI
   LO
   TS
CP0465282
4-N-(4-methoxyphenyl)-4-N-methyl-9H-pyrimido[4,5-b]indole-2,4-diamine
   Show/Hide
C18H17N5O
 1
1
IC50 = 21.4 nM
   TI
   LI
   LO
   TS
CP0530539
N-(5-methoxynaphthalen-2-yl)-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine
   Show/Hide
C19H19N3O
 1
1
IC50 = 43 nM
   TI
   LI
   LO
   TS
CP0394861
4-N-ethyl-4-N-(4-methoxyphenyl)-9H-pyrimido[4,5-b]indole-2,4-diamine
   Show/Hide
C19H19N5O
 1
1
IC50 = 45.5 nM
   TI
   LI
   LO
   TS
CP0573028
N-(4-methoxynaphthalen-1-yl)-N,2-dimethyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine
   Show/Hide
C20H21N3O
 1
1
IC50 = 180 nM
   TI
   LI
   LO
   TS
CP0472963
N-(5-methoxynaphthalen-1-yl)-N,2-dimethyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine
   Show/Hide
C20H21N3O
 1
1
IC50 = 780 nM
   TI
   LI
   LO
   TS