Biology Reference
In-Depth Information
TABLE II
(continued )
PFAM family
Description
At
Bd
S_AdoMet_
synt_C
AdoMet is an important
methyl donor for
transmethylation and is
also the propylamino
donor in polyamine
biosynthesis
At1g02500,
At4g01850,
At2g36880
Bradi2g12150,
Bradi2g12160
Glyco_hydro_9
Glycosyl hydrolase
family 9
At5g49720
Bradi3g04080
AUX_IAA
Transcription of the
AUX/IAA family of
genes is rapidly induced
by the plant hormone
auxin
At5g25890
Bradi2g05650
PTR2
The POT (proton-
dependent oligopeptide
transport) family
all appear to be
proton dependent
transporters
At1g18880
-
PDT
Prephenate dehydratase
At3g44720,
At5g22630,
At2g27820
-
Myb_DNA_
binding
MYB family transcription
factors
At2g16720
(MYB7)
At1g79180
(MYB63)
Bradi5g20130,
Bradi4g36210,
Bradi1g10470,
Bradi2g47590
S_AdoMet_synt_C family produces S-adenosyl methionine, a methyl donor
involved in transmethylation. Biosynthesis of lignin involves several trans-
methylation reactions, where S-adenosyl methionine is consumed. Pres-
ence of S_AdoMet_synt_C family suggests coupling of production of
S-adenosyl methionine and production of lignin.
PDT (prephenate dehydratase) family synthesizes phenylalanine precursors
via decarboxylative dehydration of arogenate or prephenate (
Cho et al.
2007
). The presence of PDT family suggests tight coupling of phenylala-
nine and lignin biosynthesis.
Glyco_hydro_9 (glycosyl hydrolase 9) family shows endo-1,4-beta-glucanase
activity in vitro (
Rudsander et al., 2008
) and was shown to be associated
with cellulose biosynthesis in Arabidopsis (
Nicol et al., 1998
).
Networks of gene expression relative to lignin biosynthesis in grasses were
poorly studied until recent years and this situation could be attributed to
incomplete microarrays or absence of efficient tools to analyse them. Recently
