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Table 1 List of putative histone chaperones identified from Arabidopsis showing their classification, predicted intracellular localization, and other biochemical properties

From: Histone chaperones in Arabidopsis and rice: genome-wide identification, phylogeny, architecture and transcriptional regulation

Family Sub-family Gene Previous nomenclature (Gene symbol) Protein Locus id pI/Mw (kDa) Localization NLS/NES
NAP AtNAPL1 NAP1;1 AtNAPL1a AT4G26110.2 4.33/41.6 Nuclear +/-
AtNAPL1b AT4G26110.1 4.38/42.9 Nuclear +/-
AtNAPL2 NAP1;2 AtNAPL2a AT2G19480.3 4.27/42.8 Nuclear +/+
AtNAPL2b AT2G19480.2 4.29/42.9 Nuclear +/+
AtNAPL2c AT2G19480.1 4.32/43.5 Nuclear +/+
AtNAPL3 NAP1;3 AtNAPL3 AT5G56950.1 4.42/43.2 Nuclear +/-
AtNAPL4 NAP1;4 AtNAPL4 AT3G13782.1 4.52/36.4 Nuclear +/+
AtNAPL5 NRP2 AtNAPL5 AT1G18800.1 4.17/29.4 Nuclear -/+
AtNAPL6 NRP1 AtNAPL6a AT1G74560.1 4.22/29.4 Nuclear -/+
AtNAPL6b AT1G74560.2 4.22/29.5 Nuclear -/+
AtNAPL6c AT1G74560.3 5.22/30.6 Cytoplasmic +/+
CAF1 CAF1A AtCAF1AL FAS1 ATCAF1ALa AT1G65470.2 5.45/92.3 Nuclear +/-
ATCAF1ALb AT1G65470.1 5.49/93.3 Nuclear +/-
CAF1B AtCAF1BL FAS2 ATCAF1BLa AT5G64630.1 6.35/43.7 Nuclear -/+
ATCAF1BLb AT5G64630.2 5.99/54.1 Nuclear -/-
ATCAF1BLc AT5G64630.3 5.82/47.9 Nuclear -/-
CAF1C AtCAF1CL1 MSI1 AtCAF1CL1 AT5G58230.1 4.69/48.1 Nuclear -/+
AtCAF1CL2 MSI3 AtCAF1CL2 AT4G35050.1 4.55/47.9 Nuclear -/-
AtCAF1CL3 MSI2 AtCAF1CL3 AT2G16780.1 4.66/46.7 Cytoplasmic -/-
AtCAF1CL4 FVE AtCAF1CL4 AT2G19520.1 5.81/55.7 Nuclear -/-
AtCAF1CL5 NFC5 AtCAF1CL5 AT4G29730.1 6.12/53.9 Nuclear -/-
AtCAF1CL6   AtCAF1CL6 AT2G19540.1 4.89/51.4 Nuclear -/-
SPT6 AtSPT6L1 GTB1 AtSPT6L1a AT1G65440.3 5.88/166.3 Nuclear +/+
GTB1 AtSPT6L1b AT1G65440.2 5.12/185.8 Nuclear +/+
GTB1 AtSPT6L1c AT1G65440.1 5.08/185.0 Nuclear +/+
AtSPT6L2 SPT6L AtSPT6L2 AT1G63210.1 5.98/138.1 Nuclear +/-
ASF1 AtASF1L1 ASF1B AtASF1L1 AT5G38110.1 4.02/24.7 Nuclear -/-
AtASF1L2 SGA1 AtASF1L2 AT1G66740.1 4.20/22.1 Nuclear -/-
HIRA AtHIRAL HIRA AtHIRALa AT3G44530.2 6.26/114.3 Nuclear +/+
AtHIRALb AT3G44530.1 6.40/116.4 Nuclear +/+
NASP AtNASPL   AtNASPLa AT4G37210.1 4.28/52.2 Cytoplasmic -/+
  AtNASPLb AT4G37210.2 4.11/40.5 Nuclear -/+
FACT SSRP AtSSRPL HMG AtSSRPL AT3G28730.1 5.52/71.6 Nuclear +/+
SPT16 AtSPT16L GTFC AtSPT16L AT4G10710.1 5.70/120.5 Nuclear +/-
  1. The alternative spliced forms have been named by suffixing lower case letters. pI = Isoelectric point (predicted), Mw = Molecular weight, NLS = Nuclear localization signal, NES = Nuclear export signal. ‘+ ’denotes present; ‘-’denotes absent. Note that most of the putative histone chaperones have their predicted pI in the acidic region.