Identification
HMDB Protein ID CDBP05622
Secondary Accession Numbers Not Available
Name Microtubule-associated proteins 1A/1B light chain 3B
Description Not Available
Synonyms Not Available
Gene Name MAP1LC3B
Protein Type Enzyme
Biological Properties
General Function ubiquitin protein ligase binding
Specific Function Ubiquitin-like modifier involved in formation of autophagosomal vacuoles (autophagosomes). Plays a role in mitophagy which contributes to regulate mitochondrial quantity and quality by eliminating the mitochondria to a basal level to fulfill cellular energy requirements and preventing excess ROS production. While LC3s are involved in elongation of the phagophore membrane, the GABARAP/GATE-16 subfamily is essential for a later stage in autophagosome maturation. Promotes primary ciliogenesis by removing OFD1 from centriolar satellites via the autophagic pathway. Through its interaction with the reticulophagy receptor TEX264, participates in the remodeling of subdomains of the endoplasmic reticulum into autophagosomes upon nutrient stress, which then fuse with lysosomes for endoplasmic reticulum turnover (PubMed:31006538, PubMed:31006537).
GO Classification
Biological Process
autophagosome assembly
cellular response to starvation
autophagosome maturation
autophagy
autophagy of mitochondrion
cellular response to nitrogen starvation
macroautophagy
Cellular Component
intracellular membrane-bounded organelle
autophagosome
axoneme
cytosol
intracellular
mitochondrion
autophagic vacuole membrane
organelle membrane
endomembrane system
cytoplasmic vesicle
microtubule
Molecular Function
microtubule binding
ubiquitin protein ligase binding
Cellular Location
  1. Cytoplasm
  2. Endomembrane system
  3. Cytoplasmic vesicle
  4. cytoskeleton
  5. autophagosome membrane
  6. Autophagosome
Pathways
Gene Properties
Chromosome Location 16
Locus 16q24.2
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues 125
Molecular Weight 14687.94
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Microtubule-associated proteins 1A/1B light chain 3B
MPSEKTFKQRRTFEQRVEDVRLIREQHPTKIPVIIERYKGEKQLPVLDKTKFLVPDHVNM
SELIKIIRRRLQLNANQAFFLLVNGHSMVSVSTPISEVYESEKDEDGFLYMVYASQETFG
MKLSV
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q9GZQ8
UniProtKB/Swiss-Prot Entry Name MLP3B_HUMAN
PDB IDs
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID HGNC:13352
References
General References Not Available