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Protein

Myosin regulatory light chain LC-2, mantle muscle

Gene
N/A
Organism
Todarodes pacificus (Japanese flying squid) (Ommastrephes pacificus)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli

Functioni

In molluscan muscle, calcium regulation is associated with myosin rather than with actin. Muscle myosin contains two types of light chains: the catalytic light chain, essential for ATPase activity, and the regulatory light chain, a calcium-binding protein responsible for Ca2+ dependent binding and Ca2+ dependent Mg-ATPase activity.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Calcium bindingi26 – 37Add BLAST12

GO - Molecular functioni

Complete GO annotation...

Keywords - Molecular functioni

Motor protein, Muscle protein, Myosin

Keywords - Ligandi

Calcium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Myosin regulatory light chain LC-2, mantle muscle
Short name:
RLC
OrganismiTodarodes pacificus (Japanese flying squid) (Ommastrephes pacificus)
Taxonomic identifieri6637 [NCBI]
Taxonomic lineageiEukaryotaMetazoaLophotrochozoaMolluscaCephalopodaColeoideaNeocoleoideaDecapodiformesTeuthidaOegopsinaOmmastrephidaeTodarodes

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001987571 – 153Myosin regulatory light chain LC-2, mantle muscleAdd BLAST153

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1Blocked amino end (Ala)1

Structurei

Secondary structure

1153
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi12 – 25Combined sources14
Turni30 – 32Combined sources3
Helixi35 – 44Combined sources10
Helixi51 – 59Combined sources9
Beta strandi61 – 63Combined sources3
Helixi68 – 72Combined sources5
Turni73 – 80Combined sources8
Helixi84 – 92Combined sources9
Beta strandi97 – 101Combined sources5
Helixi104 – 112Combined sources9
Beta strandi113 – 116Combined sources4
Helixi120 – 127Combined sources8
Helixi139 – 147Combined sources9

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3I5FX-ray3.10B1-153[»]
3I5GX-ray2.60B1-153[»]
3I5HX-ray3.40B1-153[»]
3I5IX-ray3.30B1-153[»]
ProteinModelPortaliP08052.
SMRiP08052.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP08052.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini13 – 48EF-hand 1PROSITE-ProRule annotationAdd BLAST36
Domaini82 – 117EF-hand 2PROSITE-ProRule annotationAdd BLAST36

Sequence similaritiesi

Contains 2 EF-hand domains.PROSITE-ProRule annotation

Keywords - Domaini

Repeat

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]
PfamiPF13405. EF-hand_6. 1 hit.
[Graphical view]
SMARTiSM00054. EFh. 2 hits.
[Graphical view]
SUPFAMiSSF47473. SSF47473. 1 hit.
PROSITEiPS00018. EF_HAND_1. 1 hit.
PS50222. EF_HAND_2. 2 hits.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P08052-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
AEEAPRRVKL SQRQMQELKE AFTMIDQDRD GFIGMEDLKD MFSSLGRVPP
60 70 80 90 100
DDELNAMLKE CPGQLNFTAF LTLFGEKVSG TDPEDALRNA FSMFDEDGQG
110 120 130 140 150
FIPEDYLKDL LENMGDNFSK EEIKNVWKDA PLKNKQFNYN KMVDIKGKAE

DED
Length:153
Mass (Da):17,558
Last modified:August 1, 1988 - v1
Checksum:i2FBE6E02F8FB9F4E
GO

Sequence databases

PIRiA41510.

Cross-referencesi

Sequence databases

PIRiA41510.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3I5FX-ray3.10B1-153[»]
3I5GX-ray2.60B1-153[»]
3I5HX-ray3.40B1-153[»]
3I5IX-ray3.30B1-153[»]
ProteinModelPortaliP08052.
SMRiP08052.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP08052.

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]
PfamiPF13405. EF-hand_6. 1 hit.
[Graphical view]
SMARTiSM00054. EFh. 2 hits.
[Graphical view]
SUPFAMiSSF47473. SSF47473. 1 hit.
PROSITEiPS00018. EF_HAND_1. 1 hit.
PS50222. EF_HAND_2. 2 hits.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiMLR_TODPA
AccessioniPrimary (citable) accession number: P08052
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 1, 1988
Last sequence update: August 1, 1988
Last modified: November 2, 2016
This is version 82 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Miscellaneous

This chain binds calcium.

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.