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Entry version 155 (29 Sep 2021)
Sequence version 1 (01 Dec 2001)
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Protein

Microtubule-associated proteins 1A/1B light chain 3A

Gene

Map1lc3a

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score:

Annotation score:5 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

Ubiquitin-like modifier involved in formation of autophagosomal vacuoles (autophagosomes). Whereas LC3s are involved in elongation of the phagophore membrane, the GABARAP/GATE-16 subfamily is essential for a later stage in autophagosome maturation.

By similarity

<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

Biological processAutophagy, Ubl conjugation pathway

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-MMU-1632852, Macroautophagy
R-MMU-5205685, PINK1-PRKN Mediated Mitophagy
R-MMU-8934903, Receptor Mediated Mitophagy

<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:
Microtubule-associated proteins 1A/1B light chain 3A
Alternative name(s):
Autophagy-related protein LC3 A
Autophagy-related ubiquitin-like modifier LC3 A
MAP1 light chain 3-like protein 1
MAP1A/MAP1B light chain 3 A
Short name:
MAP1A/MAP1B LC3 A
Microtubule-associated protein 1 light chain 3 alpha
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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 2

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...
MGIi
MGI:1915661, Map1lc3a

Eukaryotic Pathogen, Vector and Host Database Resources

More...
VEuPathDBi
HostDB:ENSMUSG00000027602

<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

Keywords - Cellular componenti

Cytoplasm, Cytoplasmic vesicle, Cytoskeleton, Membrane, Microtubule

<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 '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_00000171941 – 120Microtubule-associated proteins 1A/1B light chain 3AAdd BLAST120
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>PropeptideiPRO_0000017195121Removed in mature formCurated1

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 residuei12Phosphoserine; by PKABy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position(s) and the type of covalently attached lipid group(s).<p><a href='/help/lipid' target='_top'>More...</a></p>Lipidationi120Phosphatidylethanolamine amidated glycineBy similarity1

<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 precursor molecule is cleaved by ATG4B to form the cytosolic form, LC3-I. This is activated by APG7L/ATG7, transferred to ATG3 and conjugated to phospholipid to form the membrane-bound form, LC3-II.2 Publications
Phosphorylation at Ser-12 by PKA inhibits conjugation to phosphatidylethanolamine (PE). Interaction with MAPK15 reduces the inhibitory phosphorylation and increases autophagy activity.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei120 – 121Cleavage; by ATG4BBy similarity2

Keywords - PTMi

Lipoprotein, Phosphoprotein

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q91VR7

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

More...
PaxDbi
Q91VR7

PeptideAtlas

More...
PeptideAtlasi
Q91VR7

PRoteomics IDEntifications database

More...
PRIDEi
Q91VR7

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
295915

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q91VR7

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
Q91VR7

<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
ENSMUSG00000027602, Expressed in ear and 315 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q91VR7, MM

<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

3 different light chains, LC1, LC2 and LC3, can associate with MAP1A and MAP1B proteins (By similarity).

Interacts with TP53INP1 and TP53INP2. Directly interacts with SQSTM1; this interaction leads to MAP1LC3A recruitment to inclusion bodies containing polyubiquitinated protein aggregates and to inclusion body degradation by autophagy.

Interacts with ATG13.

Interacts with ULK1.

Interacts with TBC1D5.

Found in a complex with UBQLN1 and UBQLN2.

Interacts with UBQLN4 (via STI1 1 and 2 domains).

Interacts with UBQLN1 in the presence of UBQLN4.

Interacts with TRIM5.

Interacts with MEFV.

Interacts with RETREG1, RETREG2 and RETREG3 (By similarity).

Interacts with PICALM (By similarity).

By similarity

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
211680, 28 interactors

Protein interaction database and analysis system

More...
IntActi
Q91VR7, 4 interactors

Molecular INTeraction database

More...
MINTi
Q91VR7

STRING: functional protein association networks

More...
STRINGi
10090.ENSMUSP00000029128

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
Q91VR7, protein

<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
Q91VR7

Database of comparative protein structure models

More...
ModBasei
Search...

<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

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>Regioni49 – 53Important for interaction with ATG13 and for autophagosome formationBy similarity5

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the ATG8 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1654, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000158853

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_119276_1_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q91VR7

Identification of Orthologs from Complete Genome Data

More...
OMAi
ERRPFHE

Database of Orthologous Groups

More...
OrthoDBi
1508198at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q91VR7

TreeFam database of animal gene trees

More...
TreeFami
TF312964

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR004241, Atg8-like
IPR029071, Ubiquitin-like_domsf

The PANTHER Classification System

More...
PANTHERi
PTHR10969, PTHR10969, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02991, Atg8, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54236, SSF54236, 1 hit

<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>Sequencei

<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.

Q91VR7-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MPSDRPFKQR RSFADRCKEV QQIRDQHPSK IPVIIERYKG EKQLPVLDKT
60 70 80 90 100
KFLVPDHVNM SELVKIIRRR LQLNPTQAFF LLVNQHSMVS VSTPIADIYE
110 120
QEKDEDGFLY MVYASQETFG F
Length:121
Mass (Da):14,272
Last modified:December 1, 2001 - v1
<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:i48C1FBE8F7892AF3
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 conflicti12S → T in BAB22582 (PubMed:16141072).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
AK003122 mRNA Translation: BAB22582.1
AL929588 Genomic DNA No translation available.
BC010596 mRNA Translation: AAH10596.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS16945.1

NCBI Reference Sequences

More...
RefSeqi
NP_080011.1, NM_025735.3

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000029128; ENSMUSP00000029128; ENSMUSG00000027602

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
66734

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:66734

UCSC genome browser

More...
UCSCi
uc012cha.2, mouse

<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
AK003122 mRNA Translation: BAB22582.1
AL929588 Genomic DNA No translation available.
BC010596 mRNA Translation: AAH10596.1
CCDSiCCDS16945.1
RefSeqiNP_080011.1, NM_025735.3

3D structure databases

SMRiQ91VR7
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi211680, 28 interactors
IntActiQ91VR7, 4 interactors
MINTiQ91VR7
STRINGi10090.ENSMUSP00000029128

PTM databases

iPTMnetiQ91VR7
PhosphoSitePlusiQ91VR7

Proteomic databases

MaxQBiQ91VR7
PaxDbiQ91VR7
PeptideAtlasiQ91VR7
PRIDEiQ91VR7
ProteomicsDBi295915

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...
Antibodypediai
1970, 1377 antibodies

The DNASU plasmid repository

More...
DNASUi
66734

Genome annotation databases

EnsembliENSMUST00000029128; ENSMUSP00000029128; ENSMUSG00000027602
GeneIDi66734
KEGGimmu:66734
UCSCiuc012cha.2, mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
84557
MGIiMGI:1915661, Map1lc3a
VEuPathDBiHostDB:ENSMUSG00000027602

Phylogenomic databases

eggNOGiKOG1654, Eukaryota
GeneTreeiENSGT00940000158853
HOGENOMiCLU_119276_1_0_1
InParanoidiQ91VR7
OMAiERRPFHE
OrthoDBi1508198at2759
PhylomeDBiQ91VR7
TreeFamiTF312964

Enzyme and pathway databases

ReactomeiR-MMU-1632852, Macroautophagy
R-MMU-5205685, PINK1-PRKN Mediated Mitophagy
R-MMU-8934903, Receptor Mediated Mitophagy

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
66734, 2 hits in 62 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...
ChiTaRSi
Map1lc3a, mouse

Protein Ontology

More...
PROi
PR:Q91VR7
RNActiQ91VR7, protein

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000027602, Expressed in ear and 315 other tissues
GenevisibleiQ91VR7, MM

Family and domain databases

InterProiView protein in InterPro
IPR004241, Atg8-like
IPR029071, Ubiquitin-like_domsf
PANTHERiPTHR10969, PTHR10969, 1 hit
PfamiView protein in Pfam
PF02991, Atg8, 1 hit
SUPFAMiSSF54236, SSF54236, 1 hit

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 nameiMLP3A_MOUSE
<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: Q91VR7
Secondary accession number(s): A2AVS1, Q9DC74
<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: May 10, 2005
Last sequence update: December 1, 2001
Last modified: September 29, 2021
This is version 155 of the entry and version 1 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

Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. SIMILARITY comments
    Index of protein domains and families
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