eF-site ID 1nqi-A
PDB Code 1nqi
Chain A

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Title crystal structure of lactose synthase, a 1:1 complex between beta1,4-galactosyltransferase and alpha-lactalbumin in the presence of GlcNAc
Classification TRANSFERASE ACTIVATOR/TRANSFERASE
Compound ALPHA-LACTALBUMIN
Source (B4GT1_BOVIN)
Sequence A:  TELTKCKVSHAIKDIDGYQGISLLEWACVLFHTSGYDTQA
VVNDNGSTEYGLFQISDRFWCKSSEFPESENICGISCDKL
LDDELDDDIACAKKILAIKGIDYWKAYKPMCSEKLEQWRC
EKP
Description (1)  ALPHA-LACTALBUMIN, BETA-1,4-GALACTOSYLTRANSFERASE (E.C.2.4.1.22, E.C.2.4.1.90, E.C.2.4.1.38)


Functional site

1) chain A
residue 73-91
type prosite
sequence CGISCDKLLDDELDDDIAC
description GLYCOSYL_HYDROL_F22_1 Glycosyl hydrolases family 22 (GH22) domain signature. CgisCdkLlddELdddiaC
source prosite : PS00128

2) chain A
residue 45
type CARBOHYD
sequence N
description N-linked (GlcNAc...) asparagine => ECO:0000255
source Swiss-Prot : SWS_FT_FI2


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