cell type. For plant cells, enrichment with nitrogen, phosphorus, and potassium is especially important. Water is provided as a constituent part of the gel media.
Uses
A plant cell callus consists of somatic undifferentiated cells from an adult subject plant.
A callus is not necessarily genetically homogeneous because a callus is often made from structural tissue, not individual cells. Nevert
Mid-1800s - Beginning research of Embryo
1908 – ‘Stem Cell’ from Alexander Maksimov
1963 – Self reproducing cell
1978 – Found Blood stem cell
1981 - Embryonic stem cell
1998 - Human's embryonic stem cell
2001 – First human embryo cloning
(중략)
2.1 Adult Stem Cell - How?From Bone Marrow
HSCs and MSCs are rich in b
1908 - The term "stem cell" was proposed for scientific use by the Russian histologist Alexander Maksimov (1874–1928) at congress of hematologic society in Berlin. It postulated existence of haematopoietic stem cells.
1998 - James Thomson and coworkers derive the first human embryonic stem cell line at the University of Wisconsin–Madison.
2004–2005 - Korean researcher Hwan
light chains: 40 V x 5 J = 200
light chains: 30 V x 4 J = 120
H chains: 40 VH x 27 DH x 6JH = 6,480
320 L chains x 6,480 H chains = 2.1 x 106
Junctional diversity (addition or deletion of nucleotides at recombination sites, especially of H chain), estimated to add 3x107 fold to overall diversity.
Recombination signals
Rag-1/Rag-2/Artemis
clone을 선택한다
Plasmid DNA 분리
Restriction enzyme mapping
DNA sequencing
Gene cloning의 결과
1.원하는 유전자를 얻어낸다
유전자는 mRNA에서 얻을 수도 DNA에서 얻을 수도 있다. 이때 RNA는 각 장기마다 발현하는 정도가 다르므로 반드시 내가 원하는 유전자가 많이 발현하는 곳에서 유전자를 얻어야 한다. 그리