Entry
Name
single-stranded DNA cytosine deaminase;
AID;
activation-induced deaminase;
AICDA (gene name);
activation-induced cytidine deaminase
Class
Hydrolases;
Acting on carbon-nitrogen bonds, other than peptide bonds;
In cyclic amidines
BRITE hierarchy
Sysname
single-stranded DNA cytosine aminohydrolase
Reaction(IUBMB)
cytosine in single-stranded DNA + H2O = uracil in single-stranded DNA + NH3
Substrate
cytosine in single-stranded DNA;
H2O [CPD:
C00001 ]
Product
uracil in single-stranded DNA;
NH3 [CPD:
C00014 ]
Comment
The enzyme exclusively catalyses deamination of cytosine in single-stranded DNA. It preferentially deaminates five-nucleotide bubbles. The optimal target consists of a single-stranded NWRCN motif (W = A or T, R = A or G) [2]. The enzyme initiates antibody diversification processes by deaminating immunoglobulin sequences.
History
EC 3.5.4.38 created 2013
Orthology
K10989 activation-induced cytidine deaminase
Genes
MLEU : 105552616 105552619
PCOQ : 105805010(AICDA) 105822737
CPOC : 100729642 100731564 100732386
GVR : 103582258 103597927(AICDA)
BTAX : 128048240(AICDA) 128048260
HAI : 109372744(AICDA) 109392228
DNM : 101417910 101428702(AICDA)
XLA : 108697151(aicda.S) 734224(aicda.L)
RTEM : 120910359(AICDA) 120913458
BBUF : 120977651 121004594
SANH : 107672983 107692585
CCAR : 109105833(aicda) 109113171
CAUA : 113059628 113116839
CGIB : 127975213 128031077
MASI : 127453529 127454160
TROS : 130558596 130558597
PDAB : 135728024 135743466
PFOR : 103136694 103136697
SASA : 106575151 106576980
STRU : 115165100 115176836
SALP : 111964712 112081092
PSPA : 121302237 121325394(aicda)
ARUT : 117409992 117410177 117424122 117425258 117966747
» show all
Taxonomy
Reference
Authors
Sohail A, Klapacz J, Samaranayake M, Ullah A, Bhagwat AS
Title
Human activation-induced cytidine deaminase causes transcription-dependent, strand-biased C to U deaminations.
Journal
Reference
Authors
Larijani M, Petrov AP, Kolenchenko O, Berru M, Krylov SN, Martin A
Title
AID associates with single-stranded DNA with high affinity and a long complex half-life in a sequence-independent manner.
Journal
Reference
Authors
Brar SS, Sacho EJ, Tessmer I, Croteau DL, Erie DA, Diaz M
Title
Activation-induced deaminase, AID, is catalytically active as a monomer on single-stranded DNA.
Journal
Reference
Authors
Larijani M, Martin A
Title
Single-stranded DNA structure and positional context of the target cytidine determine the enzymatic efficiency of AID.
Journal
Reference
Authors
Verma S, Goldammer T, Aitken R
Title
Cloning and expression of activation induced cytidine deaminase from Bos taurus.
Journal
Sequence
Other DBs
ExplorEnz - The Enzyme Database: 3.5.4.38
ExPASy - ENZYME nomenclature database: 3.5.4.38
LinkDB
All DBs