Identification
HMDB Protein ID CDBP00562
Secondary Accession Numbers Not Available
Name Ubiquitin-conjugating enzyme E2 B
Description Not Available
Synonyms
  1. HR6B
  2. RAD6 homolog B
  3. Ubiquitin carrier protein B
  4. Ubiquitin-conjugating enzyme E2-17 kDa
  5. Ubiquitin-protein ligase B
  6. hHR6B
Gene Name UBE2B
Protein Type Enzyme
Biological Properties
General Function Involved in ATP binding
Specific Function Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In association with the E3 enzyme BRE1 (RNF20 and/or RNF40), it plays a role in transcription regulation by catalyzing the monoubiquitination of histone H2B at 'Lys-120' to form H2BK120ub1. H2BK120ub1 gives a specific tag for epigenetic transcriptional activation, elongation by RNA polymerase II, telomeric silencing, and is also a prerequisite for H3K4me and H3K79me formation. In vitro catalyzes 'Lys-11'-, as well as 'Lys-48'- and 'Lys-63'-linked polyubiquitination. Required for postreplication repair of UV-damaged DNA. Associates to the E3 ligase RAD18 to form the UBE2B-RAD18 ubiquitin ligase complex involved in mono-ubiquitination of DNA-associated PCNA on 'Lys-164'. May be involved in neurite outgrowth.
GO Classification
Biological Process
positive regulation of reciprocal meiotic recombination
cellular response to insulin stimulus
negative regulation of apoptotic process
response to UV
protein stabilization
canonical Wnt receptor signaling pathway
in utero embryonic development
postreplication repair
protein K48-linked ubiquitination
negative regulation of cAMP-mediated signaling
protein K11-linked ubiquitination
proteasomal ubiquitin-dependent protein catabolic process
protein monoubiquitination
response to hypoxia
response to drug
maintenance of chromatin silencing
protein K63-linked ubiquitination
histone H2A ubiquitination
protein autoubiquitination
chiasma assembly
histone lysine demethylation
negative regulation of histone phosphorylation
sperm axoneme assembly
spermatogenesis
synaptonemal complex organization
Cellular Component
cytoplasm
plasma membrane
nucleus
replication fork
HULC complex
XY body
nuclear chromatin
Function
small conjugating protein ligase activity
ligase activity
ligase activity, forming carbon-nitrogen bonds
acid-amino acid ligase activity
catalytic activity
Molecular Function
ubiquitin-protein ligase activity
ATP binding
Process
metabolic process
regulation of protein metabolic process
macromolecule metabolic process
biological regulation
regulation of biological process
regulation of metabolic process
regulation of macromolecule metabolic process
post-translational protein modification
macromolecule modification
protein modification process
Cellular Location
  1. Cell membrane
  2. Nucleus
Pathways
Gene Properties
Chromosome Location 5
Locus 5q31.1
SNPs UBE2B
Gene Sequence
>459 bp
ATGTCGACCCCGGCCCGGAGGAGGCTCATGCGGGATTTCAAGCGGTTACAAGAGGACCCA
CCTGTGGGTGTCAGTGGCGCACCATCTGAAAACAACATCATGCAGTGGAATGCAGTTATA
TTTGGACCAGAAGGGACACCTTTTGAAGATGGTACTTTTAAACTAGTAATAGAATTTTCT
GAAGAATATCCAAATAAACCACCAACTGTTAGGTTTTTATCCAAAATGTTTCATCCAAAT
GTGTATGCTGATGGTAGCATATGTTTAGATATCCTTCAGAATCGATGGAGTCCAACATAT
GATGTATCTTCTATCTTAACATCAATTCAGTCTCTGCTGGATGAACCGAATCCTAACAGT
CCAGCCAATAGCCAGGCAGCACAGCTTTATCAGGAAAACAAACGAGAATATGAGAAAAGA
GTTTCGGCCATTGTTGAACAAAGCTGGAATGATTCATAA
Protein Properties
Number of Residues 152
Molecular Weight 17312.205
Theoretical pI 4.999
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Ubiquitin-conjugating enzyme E2 B
MSTPARRRLMRDFKRLQEDPPVGVSGAPSENNIMQWNAVIFGPEGTPFEDGTFKLVIEFS
EEYPNKPPTVRFLSKMFHPNVYADGSICLDILQNRWSPTYDVSSILTSIQSLLDEPNPNS
PANSQAAQLYQENKREYEKRVSAIVEQSWNDS
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID P63146
UniProtKB/Swiss-Prot Entry Name UBE2B_HUMAN
PDB IDs
GenBank Gene ID M74525
GeneCard ID UBE2B
GenAtlas ID UBE2B
HGNC ID HGNC:12473
References
General References Not Available