Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Entry version 153 (29 Sep 2021)
Sequence version 3 (23 Jan 2007)
Previous versions | rss
Add a publicationFeedback
Protein

Myosin light chain 1, skeletal muscle isoform

Gene
N/A
Organism
Gallus gallus (Chicken)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionMotor protein, Muscle protein, Myosin

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
5.6.1.8, 1306

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Myosin light chain 1, skeletal muscle isoform
Alternative name(s):
Alkali myosin light chain 1
Short name:
MLC-1
Myosin light chain 1f
Myosin light chain alkali 1
Short name:
Myosin light chain A1
Skeletal-muscle myosin L-1 light chain
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiGallus gallus (Chicken)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9031 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesNeognathaeGalloanseraeGalliformesPhasianidaePhasianinaeGallus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000539 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 7

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Protein family/group databases

Allergome; a platform for allergen knowledge

More...
Allergomei
11772, Gal d 7
11773, Gal d 7.0101

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001987042 – 192Myosin light chain 1, skeletal muscle isoformAdd BLAST191

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei2N,N,N-trimethylalanine1 Publication1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

The N-terminus is blocked. N,N,N-trimethylalanine, found in other myosin light chains would not have been detected in the N-terminal tryptic peptide in PubMed:6709041 and PubMed:7238855 because it would remain trimethylated and ninhydrin negative after hydrolysis.

Keywords - PTMi

Methylation

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P02604

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P02604

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSGALG00000002907, Expressed in skeletal muscle tissue and 4 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
P02604, baseline and differential

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Myosin is a hexamer of 2 heavy chains and 4 light chains.

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9031.ENSGALP00000004578

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P02604

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P02604

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini48 – 83EF-hand 1PROSITE-ProRule annotationAdd BLAST36
Domaini86 – 121EF-hand 2PROSITE-ProRule annotationAdd BLAST36
Domaini125 – 160EF-hand 3PROSITE-ProRule annotationAdd BLAST36
Domaini160 – 192EF-hand 4PROSITE-ProRule annotationAdd BLAST33

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1 – 34DisorderedSequence analysisAdd BLAST34

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi15 – 31Pro residuesSequence analysisAdd BLAST17

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0030, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT01030000234570

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P02604

Identification of Orthologs from Complete Genome Data

More...
OMAi
VAKHDDK

Database of Orthologous Groups

More...
OrthoDBi
1470794at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P02604

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011992, EF-hand-dom_pair
IPR002048, EF_hand_dom

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00054, EFh, 3 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47473, SSF47473, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50222, EF_HAND_2, 4 hits

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (2)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform MLC1 (identifier: P02604-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MAPKKDVKKP AAAAAPAPAP APAPAPAPAK PKEPAIDLKS IKIEFSKEQQ
60 70 80 90 100
DDFKEAFLLF DRTGDAKITL SQVGDIVRAL GQNPTNAEIN KILGNPSKEE
110 120 130 140 150
MNAKKITFEE FLPMLQAAAN NKDQGTFEDF VEGLRVFDKE GNGTVMGAEL
160 170 180 190
RHVLATLGEK MTEEEVEELM KGQEDSNGCI NYEAFVKHIM SV
Length:192
Mass (Da):20,899
Last modified:January 23, 2007 - v3
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i6F5594D5C67E63DD
GO
Isoform MLC3 (identifier: P02605-1) [UniParc]FASTAAdd to basket
The sequence of this isoform can be found in the external entry P02605.
Isoforms of the same protein are often annotated in two different entries if their sequences differ significantly.
Length:150
Mass (Da):16,710
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti6D → E in AAA48955 (PubMed:6709041).Curated1
Sequence conflicti46S → F in AAA48960 (PubMed:6128725).Curated1
Sequence conflicti116Q → QM in AAA48955 (PubMed:6709041).Curated1
Sequence conflicti146Missing in AAA48955 (PubMed:6709041).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
K02610, K02608, K02609 Genomic DNA Translation: AAA48955.1
J00887 mRNA Translation: AAA48960.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A91284, MOCHLA

NCBI Reference Sequences

More...
RefSeqi
XP_015144626.1, XM_015289140.1 [P02604-1]
XP_015144627.1, XM_015289141.1 [P02604-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSGALT00000004587; ENSGALP00000004578; ENSGALG00000002907 [P02604-1]

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
396470

Keywords - Coding sequence diversityi

Alternative splicing

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
K02610, K02608, K02609 Genomic DNA Translation: AAA48955.1
J00887 mRNA Translation: AAA48960.1
PIRiA91284, MOCHLA
RefSeqiXP_015144626.1, XM_015289140.1 [P02604-1]
XP_015144627.1, XM_015289141.1 [P02604-1]

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1ALMmodel-C44-192[»]
1M8Qelectron microscopy70.00C/F/I/R51-192[»]
2MYSX-ray2.80C51-192[»]
SMRiP02604
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi9031.ENSGALP00000004578

Protein family/group databases

Allergomei11772, Gal d 7
11773, Gal d 7.0101

PTM databases

iPTMnetiP02604

Proteomic databases

PaxDbiP02604

Genome annotation databases

EnsembliENSGALT00000004587; ENSGALP00000004578; ENSGALG00000002907 [P02604-1]
GeneIDi396470

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
4632

Phylogenomic databases

eggNOGiKOG0030, Eukaryota
GeneTreeiENSGT01030000234570
InParanoidiP02604
OMAiVAKHDDK
OrthoDBi1470794at2759
PhylomeDBiP02604

Enzyme and pathway databases

BRENDAi5.6.1.8, 1306

Miscellaneous databases

EvolutionaryTraceiP02604

Gene expression databases

BgeeiENSGALG00000002907, Expressed in skeletal muscle tissue and 4 other tissues
ExpressionAtlasiP02604, baseline and differential

Family and domain databases

InterProiView protein in InterPro
IPR011992, EF-hand-dom_pair
IPR002048, EF_hand_dom
SMARTiView protein in SMART
SM00054, EFh, 3 hits
SUPFAMiSSF47473, SSF47473, 1 hit
PROSITEiView protein in PROSITE
PS50222, EF_HAND_2, 4 hits

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiMLE1_CHICK
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P02604
Secondary accession number(s): Q90895, Q9PWQ5
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: January 23, 2007
Last modified: September 29, 2021
This is version 153 of the entry and version 3 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again