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Protein

Tubulin beta-8 chain-like protein LOC260334

Gene
N/A
Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain (By similarity).By similarity

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi140 – 146GTPSequence analysis7

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Ligandi

GTP-binding, Nucleotide-binding

Enzyme and pathway databases

ReactomeiR-HSA-1445148. Translocation of GLUT4 to the plasma membrane.
R-HSA-190840. Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane.
R-HSA-190861. Gap junction assembly.
R-HSA-2132295. MHC class II antigen presentation.
R-HSA-2467813. Separation of Sister Chromatids.
R-HSA-2500257. Resolution of Sister Chromatid Cohesion.
R-HSA-380320. Recruitment of NuMA to mitotic centrosomes.
R-HSA-437239. Recycling pathway of L1.
R-HSA-5617833. Assembly of the primary cilium.
R-HSA-5626467. RHO GTPases activate IQGAPs.
R-HSA-5663220. RHO GTPases Activate Formins.
R-HSA-6807878. COPI-mediated anterograde transport.
R-HSA-6811434. COPI-dependent Golgi-to-ER retrograde traffic.
R-HSA-6811436. COPI-independent Golgi-to-ER retrograde traffic.
R-HSA-68877. Mitotic Prometaphase.
R-HSA-8852276. The role of GTSE1 in G2/M progression after G2 checkpoint.
R-HSA-983189. Kinesins.

Names & Taxonomyi

Protein namesi
Recommended name:
Tubulin beta-8 chain-like protein LOC260334
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Unplaced

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: UniProtKB-KW
  • extracellular exosome Source: UniProtKB
  • microtubule Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton, Microtubule

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003327391 – 444Tubulin beta-8 chain-like protein LOC260334Add BLAST444

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei40PhosphoserineBy similarity1
Modified residuei172Phosphoserine; by CDK11 Publication1
Modified residuei285PhosphothreonineBy similarity1
Modified residuei290PhosphothreonineBy similarity1
Modified residuei318Omega-N-methylarginineBy similarity1
Modified residuei4365-glutamyl polyglutamateBy similarity1

Post-translational modificationi

Some glutamate residues at the C-terminus are polyglutamylated, resulting in polyglutamate chains on the gamma-carboxyl group (PubMed:26875866). Polyglutamylation plays a key role in microtubule severing by spastin (SPAST). SPAST preferentially recognizes and acts on microtubules decorated with short polyglutamate tails: severing activity by SPAST increases as the number of glutamates per tubulin rises from one to eight, but decreases beyond this glutamylation threshold (PubMed:26875866).1 Publication
Some glutamate residues at the C-terminus are monoglycylated but not polyglycylated due to the absence of functional TTLL10 in human. Monoglycylation is mainly limited to tubulin incorporated into axonemes (cilia and flagella). Both polyglutamylation and monoglycylation can coexist on the same protein on adjacent residues, and lowering glycylation levels increases polyglutamylation, and reciprocally. The precise function of monoglycylation is still unclear (Probable).1 Publication
Phosphorylated on Ser-172 by CDK1 during the cell cycle, from metaphase to telophase, but not in interphase. This phosphorylation inhibits tubulin incorporation into microtubules.1 Publication

Keywords - PTMi

Isopeptide bond, Methylation, Phosphoprotein

Proteomic databases

MaxQBiA6NNZ2.
PaxDbiA6NNZ2.
PRIDEiA6NNZ2.

Expressioni

Gene expression databases

BgeeiENSG00000173213.

Organism-specific databases

HPAiHPA043640.
HPA046280.

Interactioni

Subunit structurei

Dimer of alpha and beta chains. A typical microtubule is a hollow water-filled tube with an outer diameter of 25 nm and an inner diameter of 15 nM. Alpha-beta heterodimers associate head-to-tail to form protofilaments running lengthwise along the microtubule wall with the beta-tubulin subunit facing the microtubule plus end conferring a structural polarity. Microtubules usually have 13 protofilaments but different protofilament numbers can be found in some organisms and specialized cells.

Protein-protein interaction databases

IntActiA6NNZ2. 1 interactor.
STRINGi9606.ENSP00000309431.

Structurei

3D structure databases

ProteinModelPortaliA6NNZ2.
SMRiA6NNZ2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the tubulin family.Curated

Phylogenomic databases

eggNOGiKOG1375. Eukaryota.
COG5023. LUCA.
HOGENOMiHOG000165710.
HOVERGENiHBG000089.
OMAiVHHHEAS.
OrthoDBiEOG091G06U2.
PhylomeDBiA6NNZ2.

Family and domain databases

Gene3Di1.10.287.600. 1 hit.
3.30.1330.20. 1 hit.
3.40.50.1440. 1 hit.
InterProiIPR013838. Beta-tubulin_BS.
IPR002453. Beta_tubulin.
IPR008280. Tub_FtsZ_C.
IPR000217. Tubulin.
IPR018316. Tubulin/FtsZ_2-layer-sand-dom.
IPR023123. Tubulin_C.
IPR017975. Tubulin_CS.
IPR003008. Tubulin_FtsZ_GTPase.
[Graphical view]
PANTHERiPTHR11588. PTHR11588. 1 hit.
PfamiPF00091. Tubulin. 1 hit.
PF03953. Tubulin_C. 1 hit.
[Graphical view]
PRINTSiPR01163. BETATUBULIN.
PR01161. TUBULIN.
SMARTiSM00864. Tubulin. 1 hit.
SM00865. Tubulin_C. 1 hit.
[Graphical view]
SUPFAMiSSF52490. SSF52490. 1 hit.
SSF55307. SSF55307. 1 hit.
PROSITEiPS00227. TUBULIN. 1 hit.
PS00228. TUBULIN_B_AUTOREG. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

A6NNZ2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MREIVLTQTG QCGNQIGAKF WEVISDEHAI DSAGTYHGDS HLQLERINVH
60 70 80 90 100
HHEASGGRYV PRAVLVDLEP GTMDSVHSGP FGQVFRPDNF ISGQCGAGNN
110 120 130 140 150
WAKGRYTEGA ELTESVMDVV RKEAESCDCL QGFQLTHSLG GGTGSGMGTL
160 170 180 190 200
LISKIREEYP DRIINTFSIL PSPKVSDTVV EPYNATLSVH QLIENADETF
210 220 230 240 250
CIDNEALYDI CSRTLKLPTP TYGDLNHLVS ATMSGVTTCL RFPGQLNADL
260 270 280 290 300
RKLAVNMVPF PRLHFFMPGF APLTSRGSQQ YRALTVAELT QQMFDAKNMM
310 320 330 340 350
AACDPRHGCY LTVAAIFRGR MPMREVDEQM FNIQDKNSSY FADWFPDNVK
360 370 380 390 400
TAVCDIPPRG LKMSATFIGN NAAIQELFTC VSEQFTAMFR RKAFLHWYTG
410 420 430 440
EGMDEMEFTE AESNMNDLVS EYQQYQDATA EEEEDEEYAE EEVA
Length:444
Mass (Da):49,573
Last modified:July 24, 2007 - v1
Checksum:i3E7C6CEBDB11BE72
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP001005 Genomic DNA. No translation available.

Genome annotation databases

UCSCiuc060mri.1. human.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP001005 Genomic DNA. No translation available.

3D structure databases

ProteinModelPortaliA6NNZ2.
SMRiA6NNZ2.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiA6NNZ2. 1 interactor.
STRINGi9606.ENSP00000309431.

Proteomic databases

MaxQBiA6NNZ2.
PaxDbiA6NNZ2.
PRIDEiA6NNZ2.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

UCSCiuc060mri.1. human.

Organism-specific databases

GeneCardsiLOC260334.
H-InvDBHIX0034873.
HIX0200674.
HPAiHPA043640.
HPA046280.
neXtProtiNX_A6NNZ2.

Phylogenomic databases

eggNOGiKOG1375. Eukaryota.
COG5023. LUCA.
HOGENOMiHOG000165710.
HOVERGENiHBG000089.
OMAiVHHHEAS.
OrthoDBiEOG091G06U2.
PhylomeDBiA6NNZ2.

Enzyme and pathway databases

ReactomeiR-HSA-1445148. Translocation of GLUT4 to the plasma membrane.
R-HSA-190840. Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane.
R-HSA-190861. Gap junction assembly.
R-HSA-2132295. MHC class II antigen presentation.
R-HSA-2467813. Separation of Sister Chromatids.
R-HSA-2500257. Resolution of Sister Chromatid Cohesion.
R-HSA-380320. Recruitment of NuMA to mitotic centrosomes.
R-HSA-437239. Recycling pathway of L1.
R-HSA-5617833. Assembly of the primary cilium.
R-HSA-5626467. RHO GTPases activate IQGAPs.
R-HSA-5663220. RHO GTPases Activate Formins.
R-HSA-6807878. COPI-mediated anterograde transport.
R-HSA-6811434. COPI-dependent Golgi-to-ER retrograde traffic.
R-HSA-6811436. COPI-independent Golgi-to-ER retrograde traffic.
R-HSA-68877. Mitotic Prometaphase.
R-HSA-8852276. The role of GTSE1 in G2/M progression after G2 checkpoint.
R-HSA-983189. Kinesins.

Gene expression databases

BgeeiENSG00000173213.

Family and domain databases

Gene3Di1.10.287.600. 1 hit.
3.30.1330.20. 1 hit.
3.40.50.1440. 1 hit.
InterProiIPR013838. Beta-tubulin_BS.
IPR002453. Beta_tubulin.
IPR008280. Tub_FtsZ_C.
IPR000217. Tubulin.
IPR018316. Tubulin/FtsZ_2-layer-sand-dom.
IPR023123. Tubulin_C.
IPR017975. Tubulin_CS.
IPR003008. Tubulin_FtsZ_GTPase.
[Graphical view]
PANTHERiPTHR11588. PTHR11588. 1 hit.
PfamiPF00091. Tubulin. 1 hit.
PF03953. Tubulin_C. 1 hit.
[Graphical view]
PRINTSiPR01163. BETATUBULIN.
PR01161. TUBULIN.
SMARTiSM00864. Tubulin. 1 hit.
SM00865. Tubulin_C. 1 hit.
[Graphical view]
SUPFAMiSSF52490. SSF52490. 1 hit.
SSF55307. SSF55307. 1 hit.
PROSITEiPS00227. TUBULIN. 1 hit.
PS00228. TUBULIN_B_AUTOREG. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiTBB8L_HUMAN
AccessioniPrimary (citable) accession number: A6NNZ2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: July 24, 2007
Last modified: November 2, 2016
This is version 74 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Human chromosome 18
    Human chromosome 18: entries, gene names and cross-references to MIM
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.