| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| Q944J0 | Probable signal peptidase complex subunit 1; EC 3.4.-.-; Microsomal signal peptidase 12 kDa subunit; SPase 12 kDa subunit; | At2g22425; | NP_001077942.1;NP_565535.1; | 92 | arabidopsis |
| P58684 | Probable signal peptidase complex subunit 2; EC 3.4.-.-; Microsomal signal peptidase 25 kDa subunit; SPase 25 kDa subunit; | At2g39960; | NP_181525.2; | 192 | arabidopsis |
| Q9ZUB3 | Spermidine synthase 1; SPDSY 1; EC 2.5.1.16; Putrescine aminopropyltransferase 1; | SPDSYN1; At1g23820; | NP_173794.2; | 334 | arabidopsis |
| O48661 | Spermidine synthase 2; SPDSY 2; EC 2.5.1.16; Putrescine aminopropyltransferase 2; | SPDSYN2; At1g70310; | NP_177188.1; | 340 | arabidopsis |
| Q9SI64 | Arginine decarboxylase 1; ADC 1; ADC-O; ARGDC 1; EC 4.1.1.19; | SPE1; At2g16500; | NP_179243.1; | 702 | arabidopsis |
| O23141 | Arginine decarboxylase 2; ADC 2; ARGDC 2; EC 4.1.1.19; ADC-N; | SPE2; At4g34710; | NP_195197.1;NP_974684.1; | 711 | arabidopsis |
| Q949S9 | Pre-mRNA-splicing factor SPF27 homolog; Modifier of SNC1 member 4; Protein BCAS2 homolog; | MOS4; BCAS2 SPF27; At3g18165; | NP_566599.1; | 253 | arabidopsis |
| Q8L7L1 | Sphingosine kinase 1; EC 2.7.1.91; | SPHK1; At4g21540; | NP_001031688.1;NP_193885.6; | 485 | arabidopsis |
| F2Y4A3 | Sphingosine kinase 2; EC 2.7.1.91; | SPHK2; At4g21534; | NP_001190787.1; | 481 | arabidopsis |
| Q8S9L0 | Squamosa promoter-binding-like protein 10; | SPL10; At1g27370; | NP_001031096.2;NP_001077605.1;NP_174057.2;NP_973921.1; | 396 | arabidopsis |
| Q9FZK0 | Squamosa promoter-binding-like protein 11; | SPL11; At1g27360; | NP_001077603.1;NP_001077604.1;NP_564280.1;NP_973920.1; | 393 | arabidopsis |
| Q9S7P5 | Squamosa promoter-binding-like protein 12; | SPL12; At3g60030; | NP_191562.1; | 927 | arabidopsis |
| Q8RY95 | Squamosa promoter-binding-like protein 14; Protein FUMONISIN B1-RESISTANT 6; SPL1-related protein 2; | SPL14; FBR6 SPL1R2; At1g20980; | NP_173522.1; | 1035 | arabidopsis |
| Q9M2Q6 | Squamosa promoter-binding-like protein 15; | SPL15; At3g57920; | NP_191351.1; | 354 | arabidopsis |
| Q700C2 | Squamosa promoter-binding-like protein 16; SPL1-related protein 3; | SPL16; SPL1R3; At1g76580; | NP_177784.6; | 988 | arabidopsis |
| Q9SMX9 | Squamosa promoter-binding-like protein 1; | SPL1; At2g47070/At2g47080; | NP_850468.1; | 881 | arabidopsis |
| Q9S840 | Squamosa promoter-binding-like protein 2; | SPL2; At5g43270; | NP_199141.1;NP_851122.1;NP_974875.1; | 419 | arabidopsis |
| P93015 | Squamosa promoter-binding-like protein 3; | SPL3; At2g33810; | NP_565771.1; | 131 | arabidopsis |
| Q9S7A9 | Squamosa promoter-binding-like protein 4; | SPL4; At1g53160; | NP_175723.1;NP_974014.1; | 174 | arabidopsis |
| Q9S758 | Squamosa promoter-binding-like protein 5; | SPL5; At3g15270; | NP_188145.1; | 181 | arabidopsis |
