Table 1.

List of genes encoding metallothionein in rice.

Group	Gene name	Wong (2004)*1	Zhou (2006)*2	Kumar (2012)*3	RAP_Os IDs*4	MSU LOC_Os IDs*5	RAPDB_Description*6
Type 1
	MT1a	OsMT1a	OsMT-I-1a	OsMT1e	Os11g0704500	LOC_Os11g47809	Metallothionein-like protein type 1.
	MT1b	OsMT1b	OsMT-I-4a	OsMT1a	Os12g0570700	LOC_Os12g38270	Similar to Metallothionein-like protein type 1.
	MT1c	OsMT1c	OsMT-I-4c	OsMT1d	Os12g0571100	LOC_Os12g38300	Similar to Metallothionein-like protein type 1.
	MT1La		OsMT-I-1b	OsMT1b	Os03g0288000	LOC_Os03g17870	Similar to Metallothionein.
	MT1Lb			OsMT1f	Os12g0567800	LOC_Os12g38010	Plant metallothionein, family 15 protein.
	MT1Lc		OsMT-I-4b	OsMT1c	Os12g0568200	LOC_Os12g38051	Metallothionein-like protein type 1.
	MT1Ld				Os12g0568500	LOC_Os12g38051	Metallothionein-like protein type 1.
	MT1Le			OsMT1g	Os12g0571000	LOC_Os12g38290	Metallothionein-like protein type 1.
	MT2a	OsMT2a	OsMT-I-2a	OsMT2a	Os01g0149800	LOC_Os01g05650	Metallothionein-like protein type 2.
	MT2b	OsMT2b	OsMT-I-2c	OsMT2b	Os05g0111300	LOC_Os05g02070	Similar to Metallothionein.
	MT2c	OsMT2c	OsMT-I-2b	OsMT2c	Os01g0974200	LOC_Os01g74300	Metallothionein-like protein.
	(MT2La)*7			OsMT2d	Os01g0149200	LOC_Os01g05585	Hypothetical gene.
Type 3
	MT3a	OsMT3a	OsMT-I-3a	OsMT3a	Os01g0200700	LOC_Os01g10400	Similar to Metallothionein-like protein type 3.
	MT3b	OsMT3b	OsMT-I-3b		Os05g0202800	LOC_Os05g11320	Similar to Metallothionein-like protein 3B.
Type 4
	MT4	OsMT4	OsMT-II-1a	OsMT4	Os10g0542100	LOC_Os10g39610	Plant EC metallothionein-like protein, family 15 protein.

^*1Wong et al. Plant Physiol 2004; 135:1447-56.

^*2Zhou et al. Biochem Mol Biol 2006; 39:595-606.

^*3Kumar et al. BMC Plant Biol 2012; 12:107.

^*4RAP Os IDs in Rice Annotation Project Database (RAP-DB; http://rapdb.dna.affrc.go.jp/).

^*5MSU LOC_Os IDs in Rice Genome Annotation Project Database (http://rice.plantbiology.msu.edu/).

^*6Descriptions in RAP-DB (IRGSP-1.0).

^*7OsMT2La lacks the N-terminal cystein-rich motif.