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Protein

Caltractin

Gene
N/A
Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

This calcium-binding protein is found in the basal body complexes (the functional homolog of the centrosome in animal cell). In mitotic cells it is specifically associated with the poles of the mitotic spindles at the sites of the duplicated basal body complexes.

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Calcium bindingi38 – 49121CuratedAdd
BLAST
Calcium bindingi74 – 85122CuratedAdd
BLAST
Calcium bindingi111 – 122123CuratedAdd
BLAST
Calcium bindingi147 – 158124CuratedAdd
BLAST

GO - Molecular functioni

  • calcium ion binding Source: InterPro
  • dynein heavy chain binding Source: GO_Central

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Cell cycle, Cell division, Mitosis

Keywords - Ligandi

Calcium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Caltractin
Alternative name(s):
20 kDa calcium-binding protein
Centrin
OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)
Taxonomic identifieri3055 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas

Subcellular locationi

GO - Cellular componenti

  • inner dynein arm Source: GO_Central
Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 169169CaltractinPRO_0000073571Add
BLAST

Proteomic databases

PaxDbiP05434.
ProMEXiP05434.

PTM databases

iPTMnetiP05434.

Interactioni

Binary interactionsi

WithEntry#Exp.IntActNotes
O123692EBI-983707,EBI-983753From a different organism.

GO - Molecular functioni

  • dynein heavy chain binding Source: GO_Central

Protein-protein interaction databases

IntActiP05434. 1 interaction.
STRINGi3055.EDO98562.

Structurei

Secondary structure

1
169
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi24 – 3714Combined sources
Beta strandi43 – 453Combined sources
Helixi47 – 5610Combined sources
Helixi63 – 7311Combined sources
Beta strandi75 – 828Combined sources
Helixi83 – 11028Combined sources
Beta strandi115 – 1184Combined sources
Helixi120 – 12910Combined sources
Helixi136 – 14611Combined sources
Beta strandi149 – 1524Combined sources
Helixi156 – 1638Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1OQPNMR-A95-169[»]
2AMINMR-A1-94[»]
3QRXX-ray2.20A1-169[»]
ProteinModelPortaliP05434.
SMRiP05434. Positions 19-169.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP05434.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini25 – 6036EF-hand 1PROSITE-ProRule annotationAdd
BLAST
Domaini61 – 9636EF-hand 2PROSITE-ProRule annotationAdd
BLAST
Domaini98 – 13336EF-hand 3PROSITE-ProRule annotationAdd
BLAST
Domaini134 – 16936EF-hand 4PROSITE-ProRule annotationAdd
BLAST

Sequence similaritiesi

Belongs to the centrin family.Curated
Contains 4 EF-hand domains.PROSITE-ProRule annotation

Keywords - Domaini

Repeat

Phylogenomic databases

eggNOGiKOG0028. Eukaryota.
COG5126. LUCA.
KOiK16465.
OMAiEDFLAMM.

Family and domain databases

Gene3Di1.10.238.10. 2 hits.
InterProiIPR011992. EF-hand-dom_pair.
IPR018247. EF_Hand_1_Ca_BS.
IPR002048. EF_hand_dom.
[Graphical view]
PfamiPF13499. EF-hand_7. 2 hits.
[Graphical view]
SMARTiSM00054. EFh. 4 hits.
[Graphical view]
SUPFAMiSSF47473. SSF47473. 1 hit.
PROSITEiPS00018. EF_HAND_1. 4 hits.
PS50222. EF_HAND_2. 4 hits.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P05434-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSYKAKTVVS ARRDQKKGRV GLTEEQKQEI REAFDLFDTD GSGTIDAKEL
60 70 80 90 100
KVAMRALGFE PKKEEIKKMI SEIDKDGSGT IDFEEFLTMM TAKMGERDSR
110 120 130 140 150
EEILKAFRLF DDDNSGTITI KDLRRVAKEL GENLTEEELQ EMIAEADRND
160
DNEIDEDEFI RIMKKTSLF
Length:169
Mass (Da):19,459
Last modified:November 1, 1988 - v1
Checksum:i731D171794EAD983
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X12634 mRNA. Translation: CAA31163.1.
X57973 Genomic DNA. Translation: CAA41039.1.
PIRiA28216. BCKM.
RefSeqiXP_001699499.1. XM_001699447.1.
UniGeneiCre.13742.

Genome annotation databases

EnsemblPlantsiEDO98562; EDO98562; CHLREDRAFT_159554.
GeneIDi5725094.
GrameneiEDO98562; EDO98562; CHLREDRAFT_159554.
KEGGicre:CHLREDRAFT_159554.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X12634 mRNA. Translation: CAA31163.1.
X57973 Genomic DNA. Translation: CAA41039.1.
PIRiA28216. BCKM.
RefSeqiXP_001699499.1. XM_001699447.1.
UniGeneiCre.13742.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1OQPNMR-A95-169[»]
2AMINMR-A1-94[»]
3QRXX-ray2.20A1-169[»]
ProteinModelPortaliP05434.
SMRiP05434. Positions 19-169.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP05434. 1 interaction.
STRINGi3055.EDO98562.

PTM databases

iPTMnetiP05434.

Proteomic databases

PaxDbiP05434.
ProMEXiP05434.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiEDO98562; EDO98562; CHLREDRAFT_159554.
GeneIDi5725094.
GrameneiEDO98562; EDO98562; CHLREDRAFT_159554.
KEGGicre:CHLREDRAFT_159554.

Phylogenomic databases

eggNOGiKOG0028. Eukaryota.
COG5126. LUCA.
KOiK16465.
OMAiEDFLAMM.

Miscellaneous databases

EvolutionaryTraceiP05434.

Family and domain databases

Gene3Di1.10.238.10. 2 hits.
InterProiIPR011992. EF-hand-dom_pair.
IPR018247. EF_Hand_1_Ca_BS.
IPR002048. EF_hand_dom.
[Graphical view]
PfamiPF13499. EF-hand_7. 2 hits.
[Graphical view]
SMARTiSM00054. EFh. 4 hits.
[Graphical view]
SUPFAMiSSF47473. SSF47473. 1 hit.
PROSITEiPS00018. EF_HAND_1. 4 hits.
PS50222. EF_HAND_2. 4 hits.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCATR_CHLRE
AccessioniPrimary (citable) accession number: P05434
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1988
Last sequence update: November 1, 1988
Last modified: September 7, 2016
This is version 116 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Miscellaneous

Binds four moles of calcium per mole of protein.

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  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.