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Only the *01 allele of each functional, ORF and in-frame pseudogenes C-REGION is shown.

Letters in red correspond to amino acids which are polymorphic in the other alleles.
For C-REGIONs, letters in bold correspond to additional positions in the IMGT unique numbering.
For C-REGIONs, letters between parentheses correspond to amino acids resulting from the splicing.

Functionality is shown between:
- parentheses, (F) and (P), when the accession number refers to rearranged genomic DNA or cDNA and the corresponding germline gene has not yet been isolated.
- brackets, [F] and [P], when the accession number refers to genomic DNA, but not known as being germline or rearranged.

N (Asn, asparagine) of potential N-glycosylation sites (NXS/T, where X is different from P), (N-linked glycosylation) is shown is green (site is underlined in CHS and in pages edited before 14/10/2009).

The IGHC protein display numbering is according to the IMGT unique numbering for C-DOMAIN and C-LIKE-DOMAIN.

                    A        AB     B           BC         C     CD      D          DE           E      EF   F          FG            G              CHS
                 (1-15)          (16-26)     (27-38)    (39-45)       (77-84)                 (85-96)     (97-104)   (105-117)    (118-128)   
             ——————————————>   ——————————> ———————————> ——————>       ———————>              ———————————>  ———————> ————————————> ——————————>
C GenesAccNum
             1        10  15   16  20 2326 27        38 3941 45       77 80 84              85  89    96  97   104 105       117 118121     130       140      150
 
     87654321|........|....|123|...|..|..| |..........| |.|...|1234567|..|...|12345677654321|...|......|12|......| |...........| |..|........|.........|.........|
CH1
DanrerIGHZBX649502 F 
     ...(X)ETLTAPVVFKMSQCSSS...TDSLIIGCLAS EFSP....DSVN FRWSSNGNEMK...NVTQHSTANN...........LKFSYITITKKQR...YQSDIMC TADHP....SKTV NETFST
CH2
DanrerIGHZBX649502 F 
     ..........(A)PTLSLVLVPT...EKNTFAMCVIE DFYT....ENIT VRWKENNIYKQ...SQTNLEYKLNMN.......GLHTALSLYKLNEIV..IPNTEYTC EVSHR....GKTF HKTQNFT
CH3
DanrerIGHZBX649502 F 
     ....(A)KFRLMLKPPMVREMFI...NNRIVLQAVVS GDL......STA VKEASVSCKMDNVPINSVSQENESQ.........HVKIYNVPVDTTKW..FNGGKVTC TTRDTL..NNKDI KQEIYFNKG
CH4
DanrerIGHZBX649502 F 
     .....(D)GQEPSVKMYKPDDIS...TKQISYVCEVS SPNL....GDVY IMWKVNNTFTE...GKSSDPIQQQG........STSVVSILTISKKEFE.NPETTINC AVVHAN..MKDTA SPLLKSTSKSKQTECDD
M
                              M1                           M2
DanrerIGHZBX649502 F 
      .EPPEPETGFALHCNEDVLEEDEFRSLWSTATSFIFLFLFSLTYSAVLSLFT MKQ
            CONNECTING_REGION   | TRANSMEMBRANE-REGION  |   CYTOPLASMIC-REGION       
IMGT notes:

Danrer: Danio rerio (leopard danio)