Histone H3.1/H4 Tetramer Human, Recombinant
Histone H3 combines with Histone H4 to form the H3/H4 tetramer. Because the histones are folded with their subunit partners, the tetramer may be a better substrate for specific enzymes and modifications.
- Highly pure, recombinant proteins
- Identity of individual proteins confirmed using Edman Degradation to sequence intact protein; mass confirmed by ESI-TOF MS
- Tested for exonuclease, endonuclease and protease contamination
Histone H3.1 combines with Histone H4 to form the H3/H4 tetramer. Two H2A/H2B heterodimers interact with an H3/H4 tetramer to form the histone octamer. Histone H3.1, an H3 variant that has thus far only been found in mammals, is replication dependent and is associated with gene activation and gene silencing. The tetramer is also modified by various enzymes and can act as a substrate for them. These modifications have been shown to be important in gene regulation. Because the histones are folded with their subunit partners, the tetramer may be a better substrate for specific enzymes and modifications.Human Histone H3.1 Protein Sequence: ARTKQ TARKS TGGKA PRKQL ATKAA RKSAP ATGGV KKPHR YRPGT VALRE IRRYQ KSTEL LIRKL PFQRL VREIA QDFKT DLRFQ SSAVM ALQEA CEAYL VGLFE DTNLC AIHAK RVTIM PKDIQ LARRI RGERA (Genbank accession number: AAN10051)
Human Histone H4 Protein Sequence: SGRGK GGKGL GKGGA KRHRK VLRDN IQGIT KPAIR RLARR GGVKR ISGLI YEETR GVLKV FLENV IRDAV TYTEH AKRKT VTAMD VVYAL KRQGR TLYGF GG (Genbank accession number: AAM83108)
Product SourcePurified H3.1 and H4 (NEB #M2503 and NEB #M2504) were denatured, refolded and the Histone H3/H4 Tetramer was purified by gel filtration.
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