Structure of PDB 5gxy Chain B

Receptor sequence

>5gxyB (length=599) Species: 1515 (Acetivibrio thermocellus)

SYNYAEALQKAIYFYECQQAGPLPEWNRVEWRGDATMNDEVLGGWYDAGD
HVKFNLPMAYSAAMLGWALYEYGDDIEASGQRLHLERNLAFALDYLVACD
RGDSVVYQIGDGAADHKWWGSAEVIEKEMTRPYFVGKGSAVVGQMAAALA
VGSIVLKNDTYLRYAKKYFELADATRSDSTYTAANGFYSSHSGFWDELLW
ASTWLYLATGDRNYLDKAESYTPKLNRQNQTTDIEYQWAHCWDDCHYGAM
ILLARATGKEEYHKFAQMHLDWWTPQGYNGKRVAYTPGGLAHLDTWGPLR
YATTEAFLAFVYADSINDPALKQKYYNFAKSQIDYALGSNPDNRSYVVGF
GNNPPQRPHHRTAHGTWLDKRDIPEKHRHVLYGALVGGPGRDDSYEDNIE
DYVKNEVACDYNAGFVGALCRLTAEYGGTPLANFPPPEQRDDEFFVEAAI
NQASDHFTEIKALLNNRSSWPARLIKDLSYNYYMDLTEVFEAGYSVDDIK
VTIGYCESGMDVEISPITHLYDNIYYIKISYIDGTNICPIGQEQYAAELQ
FRIAAPQGTKFWDPTNDFSYQGLTRELAKTKYMPVFDGATKIFGEVPGG

3D structure

• PDB: 5gxy Crystal Structures of the C-Terminally Truncated Endoglucanase Cel9Q from Clostridium thermocellum Complexed with Cellodextrins and Tris.
• Chain: B
• Resolution: 1.7 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): D76 D79 Y217 E435
• Catalytic site (residue number reindexed from 1): D47 D50 Y188 E406
• Enzyme Commision number: 3.2.1.-

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	BGC	B	H220 W267 C270 W271 Y330	H191 W238 C241 W242 Y301
BS02	BGC	B	E264 W267 D272 D273	E235 W238 D243 D244
BS03	CA	B	S221 G222 D225 E226 D272	S192 G193 D196 E197 D243
BS04	CA	B	D514 E517 D592 N595 D596	D485 E488 D563 N566 D567

Gene Ontology

Molecular Function

• GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
• GO:0030246 carbohydrate binding
• GO:0030248 cellulose binding

Biological Process

• GO:0005975 carbohydrate metabolic process

External links

• PDB: RCSB:5gxy, PDBe:5gxy, PDBj:5gxy
• PDBsum: 5gxy
• PubMed: 30609216
• UniProt: Q9AJF8