1a3s:A     (SER2) to   (PHE155)  HUMAN UBC9  |   SUMO CONJUGATING ENZYME, UBIQUITIN CONJUGATING ENZYME 
3e95:B     (ARG5) to   (ILE144)  CRYSTAL STRUCTURE OF THE PLASMODIUM FALCIPARUM UBIQUITIN CONJUGATING ENZYME COMPLEX, PFUBC13-PFUEV1A  |   MALARIA UBIQUITIN COMPLEX STRUCTURAL GENOMICS, LIGASE, UBL CONJUGATION PATHWAY, STRUCTURAL GENOMICS CONSORTIUM, SGC 
3eb6:B     (LEU3) to   (LYS144)  STRUCTURE OF THE CIAP2 RING DOMAIN BOUND TO UBCH5B  |   RING DOMAIN, E2, APOPTOSIS, METAL-BINDING, ZINC-FINGER, LIGASE, UBL CONJUGATION PATHWAY 
2ayv:A     (ALA2) to   (LYS144)  CRYSTAL STRUCTURE OF A PUTATIVE UBIQUITIN-CONJUGATING ENZYME E2 FROM TOXOPLASMA GONDII  |   STRUCTURAL GENOMICS, STRUCTURAL GENOMICS CONSORTIUM, UBIQUITIN, UBIQUITIN-CONJUGATING ENZYME, SGC, LIGASE 
2oxq:A     (MET1) to   (MET147)  STRUCTURE OF THE UBCH5 :CHIP U-BOX COMPLEX  |   PROTEIN-PROTEIN COMPLEX, LIGASE 
2oxq:B     (MET1) to   (LYS144)  STRUCTURE OF THE UBCH5 :CHIP U-BOX COMPLEX  |   PROTEIN-PROTEIN COMPLEX, LIGASE 
1ayz:A     (THR3) to   (ASP154)  CRYSTAL STRUCTURE OF THE SACCHAROMYCES CEREVISIAE UBIQUITIN- CONJUGATING ENZYME RAD6 (UBC2) AT 2.6A RESOLUTION  |   UBIQUITIN CONJUGATION, UBIQUITIN-CONJUGATING ENZYME 
1ayz:B     (THR3) to   (ASP154)  CRYSTAL STRUCTURE OF THE SACCHAROMYCES CEREVISIAE UBIQUITIN- CONJUGATING ENZYME RAD6 (UBC2) AT 2.6A RESOLUTION  |   UBIQUITIN CONJUGATION, UBIQUITIN-CONJUGATING ENZYME 
1ayz:C     (THR3) to   (ASP154)  CRYSTAL STRUCTURE OF THE SACCHAROMYCES CEREVISIAE UBIQUITIN- CONJUGATING ENZYME RAD6 (UBC2) AT 2.6A RESOLUTION  |   UBIQUITIN CONJUGATION, UBIQUITIN-CONJUGATING ENZYME 
2bf8:A    (SER19) to   (VAL151)  CRYSTAL STRUCTURE OF SUMO MODIFIED UBIQUITIN CONJUGATING ENZYME E2-25K  |   LIGASE/COMPLEX, E2-25K, E2 UBIQUITIN CONJUGATING ENZYME, SUMO, SUMO-TARGET STRUCTURE, LIGASE, STRUCTURAL PROTEOMICS IN EUROPE, SPINE, STRUCTURAL GENOMICS 
4x57:A     (THR0) to   (ASP130)  STRUCTURE OF AN ARABIDOPSIS E2 / MEMBRANE-ANCHORED UBIQUITIN-FOLD PROTEIN COMPLEX  |   UBIQUITIN, UBCONJUGATING (E2) ENZYMES, MEMBRANE ANCHORED, UBIQUITIN- FOLD PROTEIN 3, MUB3, E1:E2 COMPLEX, LIGASE-PROTEIN BINDING COMPLEX 
4x57:C     (THR0) to   (ASP130)  STRUCTURE OF AN ARABIDOPSIS E2 / MEMBRANE-ANCHORED UBIQUITIN-FOLD PROTEIN COMPLEX  |   UBIQUITIN, UBCONJUGATING (E2) ENZYMES, MEMBRANE ANCHORED, UBIQUITIN- FOLD PROTEIN 3, MUB3, E1:E2 COMPLEX, LIGASE-PROTEIN BINDING COMPLEX 
2c2v:B     (PRO9) to   (LEU150)  CRYSTAL STRUCTURE OF THE CHIP-UBC13-UEV1A COMPLEX  |   CHAPERONE, HEAT-SHOCK PROTEIN COMPLEX, E3 LIGASE, UBIQUITINYLATION, TPR, HEAT-SHOCK PROTEIN 
2c2v:E    (ARG11) to   (LEU150)  CRYSTAL STRUCTURE OF THE CHIP-UBC13-UEV1A COMPLEX  |   CHAPERONE, HEAT-SHOCK PROTEIN COMPLEX, E3 LIGASE, UBIQUITINYLATION, TPR, HEAT-SHOCK PROTEIN 
3sy2:D     (ALA2) to   (LYS146)  CRYSTAL STRUCTURE OF THE SALMONELLA E3 UBIQUITIN LIGASE SOPA IN COMPLEX WITH THE HUMAN E2 UBCH7  |   PENTAPEPTIDE, HECT DOMAIN, HECT E3,HECT E3 UBIQUITIN LIGASE, E2 UBIQUITIN CONJUGATING ENZYME, UBIQUITIN, PROTEIN-PROTEIN COMPLEX, EFFECTOR PROTEIN, UBIQUITIN TRANSFER, UBIQUITINATION, LIGASE- SIGNALING PROTEIN COMPLEX 
2clw:A     (ALA2) to   (LYS144)  CRYSTAL STRUCTURE OF HUMAN UBIQUITIN-CONJUGATING ENZYME UBCH5B  |   LIGASE, UBL CONJUGATION PATHWAY, UBC DOMAIN, THIOESTERIFICATION 
2clw:B     (SER0) to   (LYS144)  CRYSTAL STRUCTURE OF HUMAN UBIQUITIN-CONJUGATING ENZYME UBCH5B  |   LIGASE, UBL CONJUGATION PATHWAY, UBC DOMAIN, THIOESTERIFICATION 
4ip3:B     (LEU4) to   (LEU146)  COMPLEX STRUCTURE OF OSPI AND UBC13  |   PAPAIN FOLD, UNKNOWN FUNCTION-LIGASE COMPLEX 
2r0j:A     (PRO3) to   (ILE144)  CRYSTAL STRUCTURE OF THE PUTATIVE UBIQUITIN CONJUGATING ENZYME, PFE1350C, FROM PLASMODIUM FALCIPARUM  |   UBIQUITIN CONJUGATING, MALARIA, PLASMODIUM FALCIPARUM, LIGASE, UBL CONJUGATION PATHWAY, STRUCTURAL GENOMICS, STRUCTURAL GENOMICS CONSORTIUM, SGC 
3tgd:A    (GLY-4) to   (LYS144)  CRYSTAL STRUCTURE OF THE HUMAN UBIQUITIN-CONJUGATING ENZYME (E2) UBCH5B  |   UBC-LIKE, UBIQUTIN-CONJUGATING ENZYME, UBIQUITIN BINDING, LIGASE 
2e2c:A    (SER30) to   (SER175)  E2-C, AN UBIQUITIN CONJUGATING ENZYME REQUIRED FOR THE DESTRUCTION OF MITOTIC CYCLINS  |   UBIQUITIN CONJUGATION, UBIQUITIN CARRIER PROTEIN, THIOESTER BOND, LIGASE 
2ucz:A     (SER2) to   (GLY164)  UBIQUITIN CONJUGATING ENZYME (UBC7) FROM SACCHAROMYCES CEREVISIAE  |   UBIQUITIN CONJUGATION, LIGASE, YEAST 
3hct:B     (ARG6) to   (LEU146)  CRYSTAL STRUCTURE OF TRAF6 IN COMPLEX WITH UBC13 IN THE P1 SPACE GROUP  |   CROSS-BRACE, BETA-BETA-ALPHA, COILED COIL, CYTOPLASM, METAL- BINDING, UBL CONJUGATION, UBL CONJUGATION PATHWAY, ZINC, ZINC-FINGER, ATP-BINDING, DNA DAMAGE, DNA REPAIR, ISOPEPTIDE BOND, LIGASE, NUCLEOTIDE-BINDING, SIGNALING PROTEIN/LIGASE COMPLEX 
3hcu:D     (ARG6) to   (LEU146)  CRYSTAL STRUCTURE OF TRAF6 IN COMPLEX WITH UBC13 IN THE C2 SPACE GROUP  |   CROSS-BRACE, BETA-BETA-ALPHA, COILED COIL, CYTOPLASM, METAL- BINDING, UBL CONJUGATION, UBL CONJUGATION PATHWAY, ZINC, ZINC-FINGER, ATP-BINDING, DNA DAMAGE, DNA REPAIR, ISOPEPTIDE BOND, LIGASE, NUCLEOTIDE-BINDING, SIGNALING PROTEIN/LIGASE COMPLEX 
2eke:A     (SER3) to   (TYR155)  STRUCTURE OF A SUMO-BINDING-MOTIF MIMIC BOUND TO SMT3P- UBC9P: CONSERVATION OF A NONCOVALENT UBIQUITIN-LIKE PROTEIN-E2 COMPLEX AS A PLATFORM FOR SELECTIVE INTERACTIONS WITHIN A SUMO PATHWAY  |   UBC9, SMT3, SUMO BINDING MOTIF, SBM, LIGASE/PROTEIN BINDING COMPLEX 
2eke:B     (SER3) to   (TYR155)  STRUCTURE OF A SUMO-BINDING-MOTIF MIMIC BOUND TO SMT3P- UBC9P: CONSERVATION OF A NONCOVALENT UBIQUITIN-LIKE PROTEIN-E2 COMPLEX AS A PLATFORM FOR SELECTIVE INTERACTIONS WITHIN A SUMO PATHWAY  |   UBC9, SMT3, SUMO BINDING MOTIF, SBM, LIGASE/PROTEIN BINDING COMPLEX 
2esk:A     (ALA0) to   (LYS144)  HUMAN UBIQUITIN-CONJUGATING ENZYME (E2) UBCH5B, WILD-TYPE  |   LIGASE 
2eso:A     (ALA0) to   (LYS144)  HUMAN UBIQUITIN-CONJUGATING ENZYME (E2) UBCH5B MUTANT ILE37ALA  |   LIGASE 
2esp:A    (GLY-1) to   (LYS144)  HUMAN UBIQUITIN-CONJUGATING ENZYME (E2) UBCH5B MUTANT ILE88ALA  |   LIGASE 
3uin:A     (LEU6) to   (PHE155)  COMPLEX BETWEEN HUMAN RANGAP1-SUMO2, UBC9 AND THE IR1 DOMAIN FROM RANBP2  |   E3, LIGASE, SUMO, UBC9, RANBP2, NUCLEAR PORE COMPLEX, LIGASE- ISOMERASE-PROTEIN BINDING COMPLEX 
3uio:A     (ILE4) to   (PHE155)  COMPLEX BETWEEN HUMAN RANGAP1-SUMO2, UBC9 AND THE IR1 DOMAIN FROM RANBP2 CONTAINING IR2 MOTIF II  |   E3, LIGASE, SUMO, UBC9, RANBP2, NUCLEAR PORE COMPLEX, LIGASE- ISOMERASE-PROTEIN BINDING COMPLEX 
3uip:A     (LEU6) to   (PHE155)  COMPLEX BETWEEN HUMAN RANGAP1-SUMO1, UBC9 AND THE IR1 DOMAIN FROM RANBP2 CONTAINING IR2 MOTIF II  |   E3, LIGASE, SUMO, UBC9, RANBP2, NUCLEAR PORE COMPLEX, LIGASE- ISOMERASE-PROTEIN BINDING COMPLEX 
2gjd:A     (SER3) to   (TYR155)  DISTINCT FUNCTIONAL DOMAINS OF UBC9 DICTATE CELL SURVIVAL AND RESISTANCE TO GENOTOXIC STRESS  |   UBC9P, E2, SMT3, SACCHAROMYCES CEREVISIAE, CRYSTALLOGRAPHY, LIGASE 
2gjd:B     (SER2) to   (SER156)  DISTINCT FUNCTIONAL DOMAINS OF UBC9 DICTATE CELL SURVIVAL AND RESISTANCE TO GENOTOXIC STRESS  |   UBC9P, E2, SMT3, SACCHAROMYCES CEREVISIAE, CRYSTALLOGRAPHY, LIGASE 
2gjd:C     (SER3) to   (TYR155)  DISTINCT FUNCTIONAL DOMAINS OF UBC9 DICTATE CELL SURVIVAL AND RESISTANCE TO GENOTOXIC STRESS  |   UBC9P, E2, SMT3, SACCHAROMYCES CEREVISIAE, CRYSTALLOGRAPHY, LIGASE 
2gjd:D     (SER3) to   (TYR155)  DISTINCT FUNCTIONAL DOMAINS OF UBC9 DICTATE CELL SURVIVAL AND RESISTANCE TO GENOTOXIC STRESS  |   UBC9P, E2, SMT3, SACCHAROMYCES CEREVISIAE, CRYSTALLOGRAPHY, LIGASE 
4ldt:C     (MET1) to   (LYS144)  THE STRUCTURE OF H/CEOTUB1-UBIQUITIN ALDEHYDE-UBCH5B~UB  |   ISOPEPTIDASE, UBIQUITIN-CONJUGATING, POST-TRANSLATIONAL MODIFICATION, UBIQUITIN, UBIQUITIN-ALDEHYDE, HYDROLASE REGULATOR 
3von:J     (ILE8) to   (MET149)  CRYSTALSTRUCTURE OF THE UBIQUITIN PROTEASE  |   UBIQUITIN PROTEASE, HYDROLASE-LIGASE COMPLEX 
3von:b     (ARG6) to   (MET149)  CRYSTALSTRUCTURE OF THE UBIQUITIN PROTEASE  |   UBIQUITIN PROTEASE, HYDROLASE-LIGASE COMPLEX 
3von:g     (ARG6) to   (LEU146)  CRYSTALSTRUCTURE OF THE UBIQUITIN PROTEASE  |   UBIQUITIN PROTEASE, HYDROLASE-LIGASE COMPLEX 
3von:i     (ARG6) to   (TYR147)  CRYSTALSTRUCTURE OF THE UBIQUITIN PROTEASE  |   UBIQUITIN PROTEASE, HYDROLASE-LIGASE COMPLEX 
3von:l     (ARG6) to   (MET149)  CRYSTALSTRUCTURE OF THE UBIQUITIN PROTEASE  |   UBIQUITIN PROTEASE, HYDROLASE-LIGASE COMPLEX 
3w31:B     (PRO5) to   (LEU146)  STRUCTUAL BASIS FOR THE RECOGNITION OF UBC13 BY THE SHIGELLA FLEXNERI EFFECTOR OSPI  |   TYPE 3 SECRETION SYSTEM, EFFECTOR, DEAMIDATION, IMMUNE SYSTEM 
1u9a:A     (ASN0) to   (PHE155)  HUMAN UBIQUITIN-CONJUGATING ENZYME UBC9  |   UBIQUITIN-CONJUGATING ENZYME, UBIQUITIN-DIRECTED PROTEOLYSIS, CELL CYCLE CONTROL, LIGASE 
4m1n:A     (SER2) to   (ARG156)  CRYSTAL STRUCTURE OF PLASMODIUM FALCIPARUM UBIQUITIN CONJUGATING ENZYME UBC9  |   SUMO, E2 ENZYME, LIGASE 
4m1n:C     (SER2) to   (ARG156)  CRYSTAL STRUCTURE OF PLASMODIUM FALCIPARUM UBIQUITIN CONJUGATING ENZYME UBC9  |   SUMO, E2 ENZYME, LIGASE 
5aiu:E     (PRO5) to   (LEU146)  A COMPLEX OF RNF4-RING DOMAIN, UBC13-UB (ISOPEPTIDE CROSSLINK)  |   LIGASE-SIGNALING PROTEIN COMPLEX, COMPLEX, FUSION PROTEIN 
2y9p:A    (ALA15) to   (ARG179)  PEX4P-PEX22P MUTANT II STRUCTURE  |   LIGASE-TRANSPORT PROTEIN COMPLEX, E2 COMPLEX, ALPHA-BETA-ALPHA SANDWICH FOLD, E2 CO-ACTIVATOR 
4nri:B     (ARG6) to   (LEU146)  CRYSTAL STRUCTURE OF A HUMAN MMS2/UBC13 A122G MUTANT  |   UBC13, MMS2, E2, UBIQUITIN CONJUGATING ENZYME, LIGASE 
1kps:C     (ALA5) to   (LYS154)  STRUCTURAL BASIS FOR E2-MEDIATED SUMO CONJUGATION REVEALED BY A COMPLEX BETWEEN UBIQUITIN CONJUGATING ENZYME UBC9 AND RANGAP1  |   SUMO, UBIQUITIN, E2, CONJUGATING ENZYME, LIGASE, THIOESTER, SMALL UBIQUITIN-LIKE MODIFIER, LIGASE/PROTEIN TRANSPORT COMPLEX 
3jvz:A     (ALA2) to   (LYS144)  E2~UBIQUITIN-HECT  |   UBIQUITIN, HECT, E3, UBIQUITIN LIGASE, UBCH5B, NEDD4L, NEDD4-2, LIGASE, UBL CONJUGATION PATHWAY, HOST-VIRUS INTERACTION, LIGASE- SIGNALING PROTEIN COMPLEX 
2o25:A     (ALA2) to   (GLY154)  UBIQUITIN-CONJUGATING ENZYME E2-25 KDA COMPLEXED WITH SUMO-1- CONJUGATING ENZYME UBC9  |   LIGASE; UBL CONJUGATION PATHWAY, STRUCTURAL GENOMICS CONSORTIUM, SGC, LIGASE 
2o25:B    (SER19) to   (VAL151)  UBIQUITIN-CONJUGATING ENZYME E2-25 KDA COMPLEXED WITH SUMO-1- CONJUGATING ENZYME UBC9  |   LIGASE; UBL CONJUGATION PATHWAY, STRUCTURAL GENOMICS CONSORTIUM, SGC, LIGASE 
4a4b:C     (LEU3) to   (THR129)  STRUCTURE OF MODIFIED PHOSPHOTYR371-C-CBL-UBCH5B-ZAP-70 COMPLEX  |   LIGASE-TRANSFERASE COMPLEX 
3k9o:A    (SER19) to   (VAL151)  THE CRYSTAL STRUCTURE OF E2-25K AND UBB+1 COMPLEX  |   E2-25K, UBB+1, COMPLEX STRUCTURE, ATP-BINDING, ISOPEPTIDE BOND, LIGASE, NUCLEOTIDE-BINDING, UBL CONJUGATION PATHWAY 
3k9p:A     (ALA5) to   (GLY154)  THE CRYSTAL STRUCTURE OF E2-25K AND UBIQUITIN COMPLEX  |   E2-25K, UBIQUITIN, COMPLEX STRUCTURE, ATP-BINDING, ISOPEPTIDE BOND, LIGASE, NUCLEOTIDE-BINDING, UBL CONJUGATION PATHWAY, NUCLEUS, PHOSPHOPROTEIN, LIGASE-SIGNALING PROTEIN COMPLEX 
5d0m:A     (MET1) to   (LYS144)  STRUCTURE OF UBE2D2:RNF165:UB COMPLEX  |   COMPLEX, UBIQUITIN, LIGASE 
3a33:A    (GLY-1) to   (LYS128)  UBCH5B~UBIQUITIN CONJUGATE  |   E2 UBIQUITIN-CONJUGATING ENZYME, UBIQUITIN, LIGASE, UBL CONJUGATION PATHWAY, ISOPEPTIDE BOND, NUCLEUS 
3a4s:A     (GLY3) to   (PHE155)  THE CRYSTAL STRUCTURE OF THE SLD2:UBC9 COMPLEX  |   UBIQUITIN FOLD, SUMO, COILED COIL, CYTOPLASM, METHYLATION, NUCLEUS, ATP-BINDING, CELL CYCLE, CELL DIVISION, CHROMOSOME PARTITION, HOST-VIRUS INTERACTION, ISOPEPTIDE BOND, LIGASE, MITOSIS, NUCLEOTIDE-BINDING, UBL CONJUGATION, UBL CONJUGATION PATHWAY, LIGASE-TRNASCRIPTION COMPLEX 
1yh2:A     (SER0) to   (LYS149)  UBIQUITIN-CONJUGATING ENZYME HSPC150  |   STRUCTURAL GENOMICS CONSORTIUM, HSCP150, UBIQUITIN, UBIQUITIN- CONJUGATING ENZYME, LIGASE, SGC 
1yla:A    (SER19) to   (GLY154)  UBIQUITIN-CONJUGATING ENZYME E2-25 KDA (HUNTINGTON INTERACTING PROTEIN 2)  |   UBIQUITIN, UBIQUITIN- CONJUGATING ENZYME, LIGASE, STRUCTURAL GENOMICS, SGC, STRUCTURAL GENOMICS CONSORTIUM 
3l1y:A     (SER0) to   (LYS144)  CRYSTAL STRUCTURE OF HUMAN UBC4 E2 CONJUGATING ENZYME  |   E2 CONJUGATING ENZYME, UBIQUITIN LIGASE, UBL CONJUGATION PATHWAY, LIGASE 
1z2u:A     (HIS0) to   (LYS144)  THE 1.1A CRYSTALLOGRAPHIC STRUCTURE OF UBIQUITIN- CONJUGATING ENZYME (UBC-2) FROM CAENORHABDITIS ELEGANS: FUNCTIONAL AND EVOLUTIONARY SIGNIFICANCE  |   PSI, SECSG, UBIQUITIN-CONJUGATING ENZYME, CAENORHABDITIS ELEGANS, PROTEOSOME PATHWAY, STRUCTURAL GENOMICS, PROTEIN STRUCTURE INITIATIVE, SOUTHEAST COLLABORATORY FOR STRUCTURAL GENOMICS, LIGASE 
1z5s:A     (LEU6) to   (PHE155)  CRYSTAL STRUCTURE OF A COMPLEX BETWEEN UBC9, SUMO-1, RANGAP1 AND NUP358/RANBP2  |   E3, LIGASE, SUMO, UBC9, NUCLEAR PORE COMPLEX 
5edv:C     (LEU3) to   (LYS144)  STRUCTURE OF THE HOIP-RBR/UBCH5B~UBIQUITIN TRANSFER COMPLEX  |   LUBAC, RBR, E3 UBIQUITIN LIGASE, E2, LIGASE-TRANSFERASE COMPLEX 
5edv:D     (GLY1) to   (LYS144)  STRUCTURE OF THE HOIP-RBR/UBCH5B~UBIQUITIN TRANSFER COMPLEX  |   LUBAC, RBR, E3 UBIQUITIN LIGASE, E2, LIGASE-TRANSFERASE COMPLEX 
5edv:I     (ALA2) to   (LYS144)  STRUCTURE OF THE HOIP-RBR/UBCH5B~UBIQUITIN TRANSFER COMPLEX  |   LUBAC, RBR, E3 UBIQUITIN LIGASE, E2, LIGASE-TRANSFERASE COMPLEX 
2aak:A     (THR3) to   (TRP149)  UBIQUITIN CONJUGATING ENZYME FROM ARABIDOPSIS THALIANA  |   UBIQUITIN CONJUGATION, LIGASE 
4qpl:B    (HIS-1) to   (LYS144)  CRYSTAL STRUCTURE OF RNF146(RING-WWE)/UBCH5A/ISO-ADPR COMPLEX  |   PROTEIN POLY(ADP-RIBOSY)LATION, UBIQUITINATION, E2/E3 UBIQUITIN LIGASE, WNT SIGNALING, RNF146, UBCH5A, ISO-ADPR, LIGASE 
4qpl:D     (ALA0) to   (LYS144)  CRYSTAL STRUCTURE OF RNF146(RING-WWE)/UBCH5A/ISO-ADPR COMPLEX  |   PROTEIN POLY(ADP-RIBOSY)LATION, UBIQUITINATION, E2/E3 UBIQUITIN LIGASE, WNT SIGNALING, RNF146, UBCH5A, ISO-ADPR, LIGASE 
5eya:B     (ARG6) to   (LEU146)  TRIM25 RING DOMAIN IN COMPLEX WITH UBC13-UB CONJUGATE  |   COMPLEX, E3 LIGASE, UBIQUITINATION, SIGNALING PROTEIN-TRANSFERASE COMPLEX 
3bzh:A    (SER42) to   (THR193)  CRYSTAL STRUCTURE OF HUMAN UBIQUITIN-CONJUGATING ENZYME E2 E1  |   STRUCTURAL GENOMICS CONSORTIUM, UBIQUITIN, UBIQUITIN-CONJUGATING ENZYME, LIGASE, SGC, UBL CONJUGATION PATHWAY 
4bvu:B     (ALA2) to   (LYS144)  STRUCTURE OF SHIGELLA EFFECTOR OSPG IN COMPLEX WITH HOST UBCH5C-UBIQUITIN CONJUGATE  |   TRANSFERASE-LIGASE-PROTEIN BINDING COMPLEX, KINASE 
4r62:A    (MET16) to   (SER148)  STRUCTURE OF RAD6~UB  |   E2 CONJUGATING ENZYME, UBC, MONOUBIQUITINATION OF HISTONE H2B AT K123 IN SACCHAROMYCES CEREVISIAE, BRE1, UBIQUITIN, PCNA, RAD18, HISTONE H2B, UBIQUITINATION, NUCLEUS, NUCLEAR PROTEIN 
4ccg:A     (GLY0) to   (LYS149)  STRUCTURE OF AN E2-E3 COMPLEX  |   LIGASE 
3o2u:B  (SER1026) to  (GLY1174)  S. CEREVISIAE UBC12  |   E2 CONJUGASE, LIGASE 
4s3o:D     (SER1) to   (LYS144)  PCGF5-RING1B-UBCH5C COMPLEX  |   E2, E3, RING DOMAIN, UBIQUITIN RING E3 LIGASE, LIGASE-TRANSCRIPTION COMPLEX 
3ong:B     (SER2) to   (TYR155)  CRYSTAL STRUCTURE OF UBA2UFD-UBC9: INSIGHTS INTO E1-E2 INTERACTIONS IN SUMO PATHWAYS  |   LIGASE 
3ong:D     (SER2) to   (TYR155)  CRYSTAL STRUCTURE OF UBA2UFD-UBC9: INSIGHTS INTO E1-E2 INTERACTIONS IN SUMO PATHWAYS  |   LIGASE 
4dhj:C     (PRO5) to   (LEU146)  THE STRUCTURE OF A CEOTUB1 UBIQUITIN ALDEHYDE UBC13~UB COMPLEX  |   UBIQUITINATION, HYDROLASE-SIGNALING PROTEIN-LIGASE COMPLEX 
4dhj:K     (ARG6) to   (LEU146)  THE STRUCTURE OF A CEOTUB1 UBIQUITIN ALDEHYDE UBC13~UB COMPLEX  |   UBIQUITINATION, HYDROLASE-SIGNALING PROTEIN-LIGASE COMPLEX 
4dhj:G     (PRO5) to   (LEU146)  THE STRUCTURE OF A CEOTUB1 UBIQUITIN ALDEHYDE UBC13~UB COMPLEX  |   UBIQUITINATION, HYDROLASE-SIGNALING PROTEIN-LIGASE COMPLEX 
4dhz:F     (ARG6) to   (LEU146)  THE STRUCTURE OF H/CEOTUB1-UBIQUITIN ALDEHYDE-UBC13~UB  |   UBIQUITINATION, HYDROLASE-SIGNALING PROTEIN-LIGASE COMPLEX 
3ptf:A    (HIS-3) to   (LYS144)  X-RAY STRUCTURE OF THE NON-COVALENT COMPLEX BETWEEN UBCH5A AND UBIQUITIN  |   PROTEIN-PROTEIN COMPLEX, E2, UBIQUITIN, UBIQUITIN CONJUGATING ENZYME, ALPHA/BETA, LIGASE 
4fh1:A     (LYS6) to   (LEU146)  S. CEREVISIAE UBC13-N79A  |   UBIQUITIN CONJUGATING ENZYME, LIGASE 
3rcz:B     (SER3) to   (ASN155)  RAD60 SLD2 UBC9 COMPLEX  |   SUMO-LIKE DOMAIN, PROTEIN:PROTEIN INTERACTION, UBC9, PROTEIN BINDING- LIGASE COMPLEX 
5jne:B     (SER2) to   (SER156)  E2-SUMO-SIZ1 E3-SUMO-PCNA COMPLEX  |   UBIQUITIN, UBIQUITIN-LIKE, SUMO, E3 LIGASE, SUBSTRATE COMPLEX, E2 CONJUGATING ENZYME, LIGASE-SIGNALING PROTEIN COMPLEX, SIZ, PIAS 
5jne:F     (SER2) to   (SER156)  E2-SUMO-SIZ1 E3-SUMO-PCNA COMPLEX  |   UBIQUITIN, UBIQUITIN-LIKE, SUMO, E3 LIGASE, SUBSTRATE COMPLEX, E2 CONJUGATING ENZYME, LIGASE-SIGNALING PROTEIN COMPLEX, SIZ, PIAS 
4ii2:C     (ALA2) to   (LYS144)  CRYSTAL STRUCTURE OF UBIQUITIN ACTIVATING ENZYME 1 (UBA1) IN COMPLEX WITH THE UB E2 UBC4, UBIQUITIN, AND ATP/MG  |   UBIQUITIN, E1, E2, UBA1, UBC4, CONFORMATIONAL CHANGE, THIOESTER, ADENYLATION, THIOESTER TRANSFER (TRANSTHIOESTERIFICATION), ATP- BINDING, ROSSMANN-LIKE FOLD, UBIQUITIN-LIKE FOLD, LIGASE ACTIVITY, ATP/MG BINDING, UBIQUITIN E2 BINDING, UBIQUITINATION, NUCLEUS, LIGASE 
4jqu:A    (SER-2) to   (ARG148)  CRYSTAL STRUCTURE OF UBC7P IN COMPLEX WITH THE U7BR OF CUE1P  |   UBC7P:U7BR COMPLEX, LIGASE-ACTIVATOR COMPLEX, LIGASE-PROTEIN BINDING COMPLEX 
1jbb:A     (LYS6) to   (LEU146)  UBIQUITIN CONJUGATING ENZYME, UBC13  |   UBIQUITIN, UBIQUITIN-CONJUGATING ENZYME, E2, LIGASE 
2y9m:A    (MET14) to   (ARG179)  PEX4P-PEX22P STRUCTURE  |   LIGASE-TRANSPORT PROTEIN COMPLEX, UBIQUITIN CONJUGATING ENZYME, E2 COMPLEX, PEROXISOMAL PROTEIN, ALPHA-BETA-ALPHA SANDWICH FOLD, E2 CO-ACTIVATOR 
1x23:B    (PHE-1) to   (MET147)  CRYSTAL STRUCTURE OF UBCH5C  |   UBIQUITIN CONJUGATING ENZYME, UBIQUITIN, E2, LIGASE 
1x23:D     (ALA2) to   (LYS144)  CRYSTAL STRUCTURE OF UBCH5C  |   UBIQUITIN CONJUGATING ENZYME, UBIQUITIN, E2, LIGASE 
2yho:B     (LEU3) to   (LYS144)  THE IDOL-UBE2D COMPLEX MEDIATES STEROL-DEPENDENT DEGRADATION OF THE LDL RECEPTOR  |   LIGASE, E2 LIGASE-E3 LIGASE COMPLEX, RING ZINC-FINGER, UBL CONJUGATION PATHWAY 
2yho:F     (LEU3) to   (LYS144)  THE IDOL-UBE2D COMPLEX MEDIATES STEROL-DEPENDENT DEGRADATION OF THE LDL RECEPTOR  |   LIGASE, E2 LIGASE-E3 LIGASE COMPLEX, RING ZINC-FINGER, UBL CONJUGATION PATHWAY 
2yho:H     (LEU3) to   (LYS144)  THE IDOL-UBE2D COMPLEX MEDIATES STEROL-DEPENDENT DEGRADATION OF THE LDL RECEPTOR  |   LIGASE, E2 LIGASE-E3 LIGASE COMPLEX, RING ZINC-FINGER, UBL CONJUGATION PATHWAY 
3jw0:A     (ALA2) to   (LYS144)  E2~UBIQUITIN-HECT  |   UBIQUITIN, HECT, E3, UBIQUITIN LIGASE, UBCH5B, NEDD4L, NEDD4-2, LIGASE, UBL CONJUGATION PATHWAY, ISOPEPTIDE BOND, NUCLEUS, HOST- VIRUS INTERACTION, LIGASE-SIGNALING PROTEIN COMPLEX 
5d1k:A     (LEU3) to   (MET147)  CRYSTAL STRUCTURE OF UBCH5B IN COMPLEX WITH THE RING-U5BR FRAGMENT OF AO7  |   UBIQUITIN CONJUGATING ENZYME (E2), UBIQUITIN LIGASE (E3), RING FINGER, UBIQUITINATION, UBIQUITIN, LIGASE 
3l1z:A    (HIS-4) to   (LYS128)  CRYSTAL STRUCTURE OF THE U-BOX DOMAIN OF HUMAN E4B UBIQUITIN LIGASE IN COMPLEX WITH UBCH5C E2 UBIQUITIN CONJUGATING ENZYME  |   E4B, UFD2A, UBCH5C, U-BOX UBIQUITIN LIGASE, E2 UBIQUITIN CONJUGATING ENZYME, UBL CONJUGATION PATHWAY, LIGASE 
4dhi:D     (PRO5) to   (LEU146)  STRUCTURE OF C. ELEGANS OTUB1 BOUND TO HUMAN UBC13  |   UBIQUITIN E2 ENZYME FOLD, UBIQUITINATION, HYDROLASE-LIGASE COMPLEX