eF-site ID 3k9p-AB
PDB Code 3k9p
Chain A, B

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Title The crystal structure of E2-25K and ubiquitin complex
Classification LIGASE/SIGNALING PROTEIN
Compound Ubiquitin-conjugating enzyme E2 K
Source Homo sapiens (Human) (UBIQ_HUMAN)
Sequence A:  MANIAVQRIKREFKEVLKSEETSKNQIKVDLVDENFTELR
GEIAGPPDTPYEGGRYQLEIKIPETYPFNPPKVRFITKIW
HPNISSVTGAICLDILKDQWAAAMTLRTVLLSLQALLAAA
EPDDPQDAVVANQYKQNPEMFKQTARLWAHVYAGAPVSSP
EYTKKIENLCAMGFDRNAVIVALSSKSWDVETATELLLS
B:  MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQ
QRLIFAGKQLEDGRTLSDYNIQKESTLHLVLR
Description


Functional site

1) chain B
residue 65
type MOD_RES
sequence S
description Phosphoserine; by PINK1 => ECO:0000269|PubMed:24660806, ECO:0000269|PubMed:24751536, ECO:0000269|PubMed:24784582, ECO:0000269|PubMed:25527291
source Swiss-Prot : SWS_FT_FI3

2) chain B
residue 54
type SITE
sequence R
description Interacts with activating enzyme
source Swiss-Prot : SWS_FT_FI1

3) chain B
residue 72
type SITE
sequence R
description Interacts with activating enzyme
source Swiss-Prot : SWS_FT_FI1

4) chain B
residue 68
type SITE
sequence H
description Essential for function
source Swiss-Prot : SWS_FT_FI2

5) chain B
residue 6
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000269|PubMed:16443603
source Swiss-Prot : SWS_FT_FI6

6) chain B
residue 63
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000269|PubMed:16543144, ECO:0000269|PubMed:18719106
source Swiss-Prot : SWS_FT_FI12

7) chain B
residue 66
type MOD_RES
sequence T
description (Microbial infection) ADP-ribosylthreonine => ECO:0000269|PubMed:32330457
source Swiss-Prot : SWS_FT_FI4

8) chain B
residue 29
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000269|PubMed:16543144, ECO:0000269|PubMed:25752573, ECO:0000269|PubMed:25752577, ECO:0000269|PubMed:34239127
source Swiss-Prot : SWS_FT_FI10

9) chain B
residue 11
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000269|PubMed:16443603, ECO:0000269|PubMed:16543144
source Swiss-Prot : SWS_FT_FI8

10) chain B
residue 48
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000269|PubMed:16443603, ECO:0000269|PubMed:16543144
source Swiss-Prot : SWS_FT_FI8

11) chain B
residue 33
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000269|PubMed:25752577
source Swiss-Prot : SWS_FT_FI11

12) chain B
residue 27
type CROSSLNK
sequence K
description Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0000305|PubMed:15466860
source Swiss-Prot : SWS_FT_FI9

13) chain B
residue 27-52
type prosite
sequence KAKIQDKEGIPPDQQRLIFAGKQLED
description UBIQUITIN_1 Ubiquitin domain signature. KakIqDkegIPpdqQrLIFaGkqleD
source prosite : PS00299

14) chain A
residue 80-96
type prosite
sequence WHPNISSVTGAICLDIL
description UBC_1 Ubiquitin-conjugating (UBC) active site signature. WHPNIssvtGaICLdiL
source prosite : PS00183


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