Reviewed, UniProtKB/Swiss-Prot Q6CUD9 (UBC2_KLULA)

Names and origin

Protein names

Recommended name:
    Ubiquitin-conjugating enzyme E2 2
    EC=6.3.2.19
Alternative name(s):
    Ubiquitin-protein ligase UBC2
    Ubiquitin carrier protein UBC2

Gene names

Name:	UBC2
Ordered Locus Names:	KLLA0C05632g

Organism

Kluyveromyces lactis (Yeast) (Candida sphaerica) [Complete proteome]

Taxonomic identifier

28985 [NCBI]

Taxonomic lineage

Eukaryota › Fungi › Dikarya › Ascomycota › Saccharomycotina › Saccharomycetes › Saccharomycetales › Saccharomycetaceae › Kluyveromyces

Protein attributes

Sequence length	164 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the covalent attachment of ubiquitin to other proteins. Plays a role in transcription regulation by catalyzing the monoubiquitination of histone H2B to form H2BK123ub1. H2BK123ub1 gives a specific tag for epigenetic transcriptional activation and is also a prerequisite for H3K4me and H3K79me formation. Also involved in postreplication repair of UV-damaged DNA, in N-end rule-dependent protein degradation and in sporulation By similarity.
Catalytic activity	ATP + ubiquitin + protein lysine = AMP + diphosphate + protein N-ubiquityllysine.
Pathway	Protein modification; protein ubiquitination.
Subcellular location	Cytoplasm By similarity. Nucleus By similarity.
Sequence similarities	Belongs to the ubiquitin-conjugating enzyme family.

Ontologies

Keywords
Biological process	DNA damage DNA repair Sporulation Transcription Transcription regulation Ubl conjugation pathway
Cellular component	Cytoplasm Nucleus
Ligand	ATP-binding Nucleotide-binding
Molecular function	Chromatin regulator Ligase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	DNA repair Inferred from electronic annotation. Source: UniProtKB-KW chromatin modification Inferred from electronic annotation. Source: UniProtKB-KW modification-dependent protein catabolic process Inferred from electronic annotation. Source: UniProtKB-KW post-translational protein modification Inferred from electronic annotation. Source: InterPro regulation of protein metabolic process Inferred from electronic annotation. Source: InterPro regulation of transcription, DNA-dependent Inferred from electronic annotation. Source: UniProtKB-KW sporulation resulting in formation of a cellular spore Inferred from electronic annotation. Source: UniProtKB-KW transcription Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell nucleus Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW ubiquitin-protein ligase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 164	164	Ubiquitin-conjugating enzyme E2 2		PRO_0000082533
Sites
	Active site	88	1	Glycyl thioester intermediate By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q6CUD9-1 [UniParc]. Last modified August 16, 2004. Version 1. Checksum: CE7C16806938D62A	FASTA	164	18,871
	10 20 30 40 50 60 MSTPARRRLM RDFKRMKEDS PPGVSASPLP DNVMIWNAMI IGPADTPYED GTFRLLLEFD 70 80 90 100 110 120 EEYPNKPPHV KFLSEMFHPN VYANGEICLD ILQNRWTPTY DVASILTSIQ SLFNDPNPAS 130 140 150 160 PANVEAATLF QDHKSQYVKR VKETVEKSWE DDMEDMADED EDEE

References

[1]

"Genome evolution in yeasts." Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I., de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L., Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S. , Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J., Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E., Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C., Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M., Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S., Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F., Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M., Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M., Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C., Weissenbach J., Wincker P., Souciet J.-L. Nature 430:35-44(2004) [PubMed: 15229592] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 8585 / CBS 2359 / DSM 70799 / NRRL Y-1140 / WM37.

Cross-references

Sequence databases
EMBLGenBankDDBJ	CR382123 Genomic DNA. Translation: CAH01301.1.
RefSeq	XP_452450.1.
3D structure databases
SMR	Q6CUD9. Positions 2-154.
ModBase	Search...
Genome annotation databases
GeneID	2892656.
KEGG	kla:KLLA0C05632g.
Phylogenomic databases
HOGENOM	Q6CUD9.
OMA	Q6CUD9. YANGEIC.
Enzyme and pathway databases
BRENDA	6.3.2.19. 74088.
Family and domain databases
InterPro	IPR016135. UBQ-conjugat/RWD-like. IPR000608. UBQ-conjugat_E2. [Graphical view]
Gene3D	G3DSA:3.10.110.10. UBQ-conjugat_E2. 1 hit.
Pfam	PF00179. UQ_con. 1 hit. [Graphical view]
ProDom	PD000461. UBQ_conjugat. 1 hit. [Graphical view] [Entries sharing at least one domain]
SMART	SM00212. UBCc. 1 hit. [Graphical view]
PROSITE	PS00183. UBIQUITIN_CONJUGAT_1. 1 hit. PS50127. UBIQUITIN_CONJUGAT_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

UBC2_KLULA

Accession

Primary (citable) accession number: Q6CUD9

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 10, 2006
Last sequence update:	August 16, 2004
Last modified:	June 16, 2009
This is version 43 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

FPAP (Fungal Proteome Annotation Project)