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Protein

Obelin

Gene
N/A
Organism
Obelia longissima (Black sea hydrozoan) (Laomedea longissima)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Ca2+-dependent bioluminescence photoprotein. Displays an emission peak at 470 nm (blue light). Trace amounts of calcium ion trigger the intramolecular oxidation of the chromophore, coelenterazine into coelenteramide and CO2 with the concomitant emission of light.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Calcium bindingi30 – 411PROSITE-ProRule annotationAdd BLAST12
Calcium bindingi123 – 1342PROSITE-ProRule annotationAdd BLAST12
Calcium bindingi159 – 1703PROSITE-ProRule annotationAdd BLAST12

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionPhotoprotein
Biological processLuminescence
LigandCalcium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Obelin
Short name:
OBL
OrganismiObelia longissima (Black sea hydrozoan) (Laomedea longissima)
Taxonomic identifieri32570 [NCBI]
Taxonomic lineageiEukaryotaMetazoaCnidariaHydrozoaHydroidolinaLeptothecataCampanulariidaeObelia

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi92W → F: Shifts luminescence to violet by adding a new band at 410 nm. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PropeptideiPRO_00000041361 – 6Sequence analysis6
ChainiPRO_00000041377 – 195ObelinAdd BLAST189

Interactioni

Protein-protein interaction databases

MINTiQ27709

Structurei

Secondary structure

1195
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

ProteinModelPortaliQ27709
SMRiQ27709
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ27709

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini17 – 52EF-hand 1PROSITE-ProRule annotationAdd BLAST36
Domaini53 – 88EF-hand 2PROSITE-ProRule annotationAdd BLAST36
Domaini110 – 145EF-hand 3PROSITE-ProRule annotationAdd BLAST36
Domaini146 – 181EF-hand 4PROSITE-ProRule annotationAdd BLAST36

Sequence similaritiesi

Belongs to the aequorin family.Curated

Keywords - Domaini

Repeat

Family and domain databases

CDDicd00051 EFh, 1 hit
InterProiView protein in InterPro
IPR011992 EF-hand-dom_pair
IPR018247 EF_Hand_1_Ca_BS
IPR002048 EF_hand_dom
IPR039647 EF_hand_pair_protein_CML-like
PANTHERiPTHR10891 PTHR10891, 1 hit
PfamiView protein in Pfam
PF00036 EF-hand_1, 1 hit
PF13202 EF-hand_5, 1 hit
SMARTiView protein in SMART
SM00054 EFh, 3 hits
SUPFAMiSSF47473 SSF47473, 1 hit
PROSITEiView protein in PROSITE
PS00018 EF_HAND_1, 3 hits
PS50222 EF_HAND_2, 3 hits

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q27709-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSSKYAVKLK TDFDNPRWIK RHKHMFDFLD INGNGKITLD EIVSKASDDI
60 70 80 90 100
CAKLEATPEQ TKRHQVCVEA FFRGCGMEYG KEIAFPQFLD GWKQLATSEL
110 120 130 140 150
KKWARNEPTL IREWGDAVFD IFDKDGSGTI TLDEWKAYGK ISGISPSQED
160 170 180 190
CEATFRHCDL DNSGDLDVDE MTRQHLGFWY TLDPEADGLY GNGVP
Length:195
Mass (Da):22,226
Last modified:November 1, 1997 - v1
Checksum:i5D002270B73D3663
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U07128 mRNA Translation: AAA67708.1

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U07128 mRNA Translation: AAA67708.1

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1EL4X-ray1.73A1-195[»]
1JF0X-ray1.82A1-195[»]
1JF2X-ray1.72A1-195[»]
1QV0X-ray1.10A1-195[»]
1QV1X-ray1.10A1-195[»]
1S36X-ray1.96A1-195[»]
1SL7X-ray2.20A1-195[»]
1SL9X-ray1.17A1-195[»]
2F8PX-ray1.93A1-195[»]
4MRXX-ray1.72A1-195[»]
4MRYX-ray1.30A1-195[»]
4N1FX-ray2.09A1-195[»]
4N1GX-ray1.50A/B1-195[»]
ProteinModelPortaliQ27709
SMRiQ27709
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

MINTiQ27709

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiQ27709

Family and domain databases

CDDicd00051 EFh, 1 hit
InterProiView protein in InterPro
IPR011992 EF-hand-dom_pair
IPR018247 EF_Hand_1_Ca_BS
IPR002048 EF_hand_dom
IPR039647 EF_hand_pair_protein_CML-like
PANTHERiPTHR10891 PTHR10891, 1 hit
PfamiView protein in Pfam
PF00036 EF-hand_1, 1 hit
PF13202 EF-hand_5, 1 hit
SMARTiView protein in SMART
SM00054 EFh, 3 hits
SUPFAMiSSF47473 SSF47473, 1 hit
PROSITEiView protein in PROSITE
PS00018 EF_HAND_1, 3 hits
PS50222 EF_HAND_2, 3 hits
ProtoNetiSearch...

Entry informationi

Entry nameiOBL_OBELO
AccessioniPrimary (citable) accession number: Q27709
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1997
Last modified: November 7, 2018
This is version 92 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Keywords - Technical termi

3D-structure

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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Main funding by: National Institutes of Health

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