Qualifier /specific_host=
Definition 自然宿主。
Value format "text"
Example /specific_host="Rhizobium NGR234"
Qualifier /specimen_voucher=
Definition 该序列物种的个人或收藏部门的标识，通常是研究所。
Value format "text"
Example /specimen_voucher="Smith s. n. 4-IV-1995 (U. S. Natl.
Herbarium)""
Qualifier /standard_name=
Definition 承认的标准名称。
Value format "text"
Example /standard_name="dotted"
Comment 用/standard_name来确定基因的全称，用/gene给出基因简称(在本例中/gene="Dt")
Qualifier /strain=
Definition 菌株
Value format "text"
Example /strain="BALB/c"
Qualifier /sub_clone=
Definition 亚克隆。
Value format "text"
Example /sub_clone="lambda-hIL7.20g"
Comment 对一个source应该只有一个对应的亚克隆号码，如果要标识序列是从多个亚克隆中来的，应该使用多个source。
Qualifier /sub_species=
Definition 物种的亚种名称。
Value format "text"
Example /sub_species="japonica"
Qualifier /sub_strain=
Definition 亚菌株。
Value format "text"
Example /sub_strain="abis"
Qualifier /tissue_lib=
Definition 组织文库。
Value format "text"
Example /tissue_lib="tissue library 772"
Qualifier /tissue_type=
Definition 组织类型。
Value format "text"
Example /tissue_type="liver"
Qualifier /translation=
Definition 根据标准密码子表或由/transl_table、/transl_except、/codon确定的密码子表自动生成的单字符蛋白序列。
Value format IUPAC单字符标识的氨基酸, "X"表示例外的氨基酸‘
Example /translation="MASTFPPWYRGCASTPSLKGLIMCTW"
Comment 只在CDS中用. 除了有/pseudo的CDS外，该qualifier是CDS必须要的填的。参考/transl_table的密码子表定义。
Qualifier /transl_except=
Definition 翻译的例外，单个氨基酸密码子的例外。
Value format (pos:location,aa:<amino_acid>)其中amino_acid是在location位置核酸序列编码的氨基酸（三字符）
Example /transl_except=(pos:213..215,aa:Trp)
/transl_except=(pos:1017,aa:TERM)
/transl_except=(pos:2000..2001,aa:TERM)
/transl_except=(pos:X22222:15..17,aa:Ala)
Comment 如果氨基酸不在规定的列表中，用如'/transl_except=(pos:213..215,aa:OTHER)'并有'/note="不常见的氨基酸名称"'的方式表示。对于修饰氨基酸selenocysteine用三字符'Sec'表示(序列中单字符用'U'表示)。/transl_except=(pos:1002..1004,aa:Sec)。对需要在mRNA尾部加A才可以形成终止密码子TAA的部分终止密码，用单个碱基位置或位置区域来表示，如/transl_except=(pos:1017,aa:TERM)、/transl_except=(pos:2000..2001,aa:TERM)
Qualifier /transl_table=
Definition 非通用的遗传密码子表。
Value format <integer>; 1=universal table 1;2=non-universal table 2;...
Example /transl_table=4
Comment 如果仍然有密码子在指定的密码子表中是例外的，用/codon或/transl_except补充。
Qualifier /transposon=
Definition 转座子。
Value format "text"
Example /transposon="Tn9"
Qualifier /usedin=
Definition 表示该feature在其他的序列仍然用到。
Value format Accession-number:feature-name 或 Database_name::Acc_number:feature_label
Example /usedin=X10087:proteinx
Comment Database_name 是有该acc-number的序列所在的数据库的简写。
Qualifier /variety=
Definition 品种。
Value format "text"
Example /variety="Bright Yellow 4"
Comment 主要在Source这个feature中用。
Qualifier /virion
Definition 病毒粒子。
Value format none
Example /virion
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Appendix I Genetic Code Tables Genetic Code Tables
Authority International Sequence Databank Collaboration
Contact NCBI
Scope /transl_table qualifier
Genetic Code [1]
Standard
AAs = FFLLSSSSYY**CC*WLLLLPPPPHHQQRRRRIIIMTTTTNNKKSSRRVVVVAAAADDEEGGGG
Starts = ---M---------------M---------------M----------------------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG
Genetic Code [2]
Vertebrate Mitochondrial
AAs = FFLLSSSSYY**CCWWLLLLPPPPHHQQRRRRIIMMTTTTNNKKSS**VVVVAAAADDEEGGGG
Starts = --------------------------------MMMM---------------M------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG
Genetic Code [3]
Yeast Mitochondrial
AAs = FFLLSSSSYY**CCWWTTTTPPPPHHQQRRRRIIMMTTTTNNKKSSRRVVVVAAAADDEEGGGG
Starts = -----------------------------------M----------------------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG
Genetic Code [4]
Mold, Protozoan, Coelenterate Mitochondrial and Mycoplasma/Spiroplasma
AAs = FFLLSSSSYY**CCWWLLLLPPPPHHQQRRRRIIIMTTTTNNKKSSRRVVVVAAAADDEEGGGG
Starts = --MM---------------M------------MMMM---------------M------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG
Genetic Code [5]
Invertebrate Mitochondrial
AAs = FFLLSSSSYY**CCWWLLLLPPPPHHQQRRRRIIMMTTTTNNKKSSSSVVVVAAAADDEEGGGG
Starts = ---M----------------------------MMMM---------------M------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG
Genetic Code [6]
Ciliate Macronuclear and Dasycladacean
AAs = FFLLSSSSYYQQCC*WLLLLPPPPHHQQRRRRIIIMTTTTNNKKSSRRVVVVAAAADDEEGGGG
Starts = -----------------------------------M----------------------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG
Genetic Code [9]
Echinoderm Mitochondrial
AAs = FFLLSSSSYY**CCWWLLLLPPPPHHQQRRRRIIIMTTTTNNNKSSSSVVVVAAAADDEEGGGG
Starts = -----------------------------------M----------------------------
Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG