参考基因组里除了ACTGN以外，还会看到其他一些字符，看一下这些字符都代表什么？

DNA:

Nucleotide Code: Base:

---------------- -----

A.................Adenine

C.................Cytosine

G.................Guanine

T (or U)..........Thymine (or Uracil)

R.................A or G

Y.................C or T

S.................G or C

W.................A or T

K.................G or T

M.................A or C

B.................C or G or T

D.................A or G or T

H.................A or C or T

V.................A or C or G

N.................any base

. or -............gap

氨基酸都有了，怎么能少了蛋白质！

Protein:

Amino Acid Code: Three letter Code: Amino Acid:

---------------- ------------------ -----------

A.................Ala.................Alanine(丙氨酸)

B.................Asx.................Aspartic acid or Asparagine(天冬氨酸或天冬酰胺)

C.................Cys.................Cysteine(半胱氨酸)

D.................Asp.................Aspartic Acid(天冬氨酸)

E.................Glu.................Glutamic Acid(谷氨酸)

F.................Phe.................Phenylalanine(苯丙氨酸)

G.................Gly.................Glycine(甘氨酸)

H.................His.................Histidine(组氨酸)

I.................Ile.................Isoleucine(异亮氨酸)

K.................Lys.................Lysine(赖氨酸)

L.................Leu.................Leucine(亮氨酸)

M.................Met.................Methionine(甲硫氨酸)

N.................Asn.................Asparagine(天冬酰胺)

P.................Pro.................Proline(脯氨酸)

Q.................Gln.................Glutamine(谷氨酰胺)

R.................Arg.................Arginine(精氨酸)

S.................Ser.................Serine(丝氨酸)

T.................Thr.................Threonine(苏氨酸)

V.................Val.................Valine(缬氨酸)

W.................Trp.................Tryptophan(色氨酸)

X.................Xaa.................Any amino acid(任何氨基酸)

Y.................Tyr.................Tyrosine(酪氨酸)

Z.................Glx.................Glutamine or Glutamic acid(谷氨酰胺或谷氨酸)