eF-site ID 5fo9-B
PDB Code 5fo9
Chain B

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Title Crystal Structure of Human Complement C3b in Complex with CR1 (CCP15- 17)
Classification LIPID BINDING PROTEIN
Compound COMPLEMENT C3 BETA CHAIN
Source ORGANISM_COMMON: HUMAN; ORGANISM_SCIENTIFIC: HOMO SAPIENS;
Sequence B:  DEDIIAEENIVSRSEFPESWLWNVEDLKEPPKNGISTKLM
NIFLKDSITTWEILAVSMSDKKGICVADPFEVTVMQDFFI
DLRLPYSVVRNEQVEIRAVLYNYRQNQELKVRVELLHNPA
FCSLATTKRRHQQTVTIPPKSSLSVPYVIVPLKTGLQEVE
VKAAVYHHFISDGVRKSLKVVPEGIRMNKTVAVRTLDPER
LGREGVQKEDIPPADLSDQVPDTESETRILLQGTPVAQMT
EDAVDAERLKHLIVTPSGCGEENMIGMTPTVIAVHYLDET
EQWEKFGLEKRQGALELIKKGYTQQLAFRQPSSAFAAFVK
RAPSTWLTAYVVKVFSLAVNLIAIDSQVLCGAVKWLILEK
QKPDGVFQEDAPVIHQEMIGGLRNNNEKDMALTAFVLISL
QEAKDICEEQVNSLPGSITKAGDFLEANYMNLQRSYTVAI
AGYALAQMGRLKGPLLNKFLTTAKDKNRWEDPGKQLYNVE
ATSYALLALLQLKDFDFVPPVVRWLNEQRYYGGGYGSTQA
TFMVFQALAQYQKDAPDHQELNLDVSLQLPSRSSKITHRI
HWESASLLRSEETKENEGFTVTAEGKGQGTLSVVTMYHAK
AKDQLTCNKFDLKVTIKPAPKNTMILEICTRYRGDQDATM
SILDISMMTGFAPDTDDLKQLANGVDRYISKYELDKAFSD
RNTLIIYLDKVSHSEDDCLAFKVHQYFNVELIQPGAVKVY
AYYNLEESCTRFYHPEKEDGKLNKLCRDELCRCAEENCFI
QKSDDKVTLEERLDKACEPGVDYVYKTRLVKVQLSNDFDE
YIMAIEQTIKSGSDEVQVGQQRTFISPIKCREALKLEEKK
HYLMWGLSSDFWGEKPNLSYIIGKDTWVEHWPEEDECQDE
ENQKQCQDLGAFTESMVVFGCPN
Description


Functional site

1) chain B
residue 1617
type CARBOHYD
sequence N
description N-linked (GlcNAc...) asparagine => ECO:0000269|PubMed:16335952
source Swiss-Prot : SWS_FT_FI6

2) chain B
residue 1010
type CROSSLNK
sequence C
description Isoglutamyl cysteine thioester (Cys-Gln)
source Swiss-Prot : SWS_FT_FI7

3) chain B
residue 1013
type CROSSLNK
sequence E
description Isoglutamyl cysteine thioester (Cys-Gln)
source Swiss-Prot : SWS_FT_FI7

4) chain B
residue 1007-1015
type prosite
sequence PSGCGEENM
description ALPHA_2_MACROGLOBULIN Alpha-2-macroglobulin family thiolester region signature. PsGCGEEnM
source prosite : PS00477

5) chain B
residue 1303
type SITE
sequence R
description Cleavage; by factor I
source Swiss-Prot : SWS_FT_FI2

6) chain B
residue 1320
type SITE
sequence R
description Cleavage; by factor I
source Swiss-Prot : SWS_FT_FI2

7) chain B
residue 1663
type SITE
sequence N
description Coordinates Mg2+ for interaction with Complement factor B Bb fragment => ECO:0000269|PubMed:28264884, ECO:0000269|PubMed:31507604
source Swiss-Prot : SWS_FT_FI3

8) chain B
residue 968
type MOD_RES
sequence S
description Phosphoserine; by FAM20C => ECO:0000269|PubMed:26091039
source Swiss-Prot : SWS_FT_FI4

9) chain B
residue 1321
type MOD_RES
sequence S
description Phosphoserine; by FAM20C => ECO:0000269|PubMed:26091039
source Swiss-Prot : SWS_FT_FI4

10) chain B
residue 1573
type MOD_RES
sequence S
description Phosphoserine; by FAM20C => ECO:0000269|PubMed:26091039
source Swiss-Prot : SWS_FT_FI4

11) chain B
residue 939
type CARBOHYD
sequence N
description N-linked (GlcNAc...) asparagine => ECO:0000269|PubMed:14760718, ECO:0000269|PubMed:16335952, ECO:0000269|PubMed:17051150
source Swiss-Prot : SWS_FT_FI5


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