ID   CHHB1_BOMMO             Reviewed;         131 AA.
AC   P05688;
DT   01-NOV-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1988, sequence version 1.
DT   25-MAY-2022, entry version 61.
DE   RecName: Full=Chorion class high-cysteine HCB protein 12;
DE            Short=HC-B.12;
DE   Flags: Precursor;
OS   Bombyx mori (Silk moth).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Endopterygota; Lepidoptera; Glossata; Ditrysia; Bombycoidea;
OC   Bombycidae; Bombycinae; Bombyx.
OX   NCBI_TaxID=7091;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=6589605; DOI=10.1073/pnas.81.14.4452;
RA   Iatrou K., Tsitilou S.G., Kafatos F.C.;
RT   "DNA sequence transfer between two high-cysteine chorion gene families in
RT   the silkmoth Bombyx mori.";
RL   Proc. Natl. Acad. Sci. U.S.A. 81:4452-4456(1984).
CC   -!- FUNCTION: This protein is one of many from the eggshell of the silk
CC       moth.
CC   -!- SIMILARITY: Belongs to the chorion protein family. {ECO:0000305}.
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DR   EMBL; K02835; AAA27835.1; -; Genomic_DNA.
DR   AlphaFoldDB; P05688; -.
DR   Proteomes; UP000005204; Unassembled WGS sequence.
DR   GO; GO:0042600; C:egg chorion; IEA:InterPro.
DR   GO; GO:0005213; F:structural constituent of egg chorion; IEA:InterPro.
DR   GO; GO:0007304; P:chorion-containing eggshell formation; IEA:InterPro.
DR   InterPro; IPR002635; Chorion.
DR   Pfam; PF01723; Chorion_1; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Repeat; Signal.
FT   SIGNAL          1..21
FT   CHAIN           22..131
FT                   /note="Chorion class high-cysteine HCB protein 12"
FT                   /id="PRO_0000005385"
FT   REGION          22..46
FT                   /note="Left arm"
FT   REGION          47..110
FT                   /note="Central domain"
FT   REGION          111..131
FT                   /note="Right arm (Gly-rich tandem repeats)"
SQ   SEQUENCE   131 AA;  12474 MW;  73654BEB7C73DCAD CRC64;
     MAAKLIVFVC AIALVAQSVL GTGCGCCCRG CGCGCGGCGC GCCENFRVCS NSAAPTGLSI
     CSENRYKGDV CVCGEVPFLG TADVCGNMCS SGCGCIDYGC GNGCVGITRS CGGCGCGCGG
     CGCGCGGCGC C