ID   CHB4_ANTPO              Reviewed;         171 AA.
AC   P02847;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   25-MAY-2022, entry version 55.
DE   RecName: Full=Chorion class B protein PC401;
DE   Flags: Precursor; Fragment;
OS   Antheraea polyphemus (Polyphemus moth).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Endopterygota; Lepidoptera; Glossata; Ditrysia; Bombycoidea;
OC   Saturniidae; Saturniinae; Saturniini; Antheraea.
OX   NCBI_TaxID=7120;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=519771; DOI=10.1016/0092-8674(79)90242-3;
RA   Jones C.W., Rosenthal N., Rodakis G.C., Kafatos F.C.;
RT   "Evolution of two major chorion multigene families as inferred from cloned
RT   cDNA and protein sequences.";
RL   Cell 18:1317-1332(1979).
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; V00077; CAA23419.1; -; mRNA.
DR   PIR; A03337; JBAO41.
DR   AlphaFoldDB; P02847; -.
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   2: Evidence at transcript level;
KW   Repeat; Signal.
FT   SIGNAL          <1..18
FT   CHAIN           19..171
FT                   /note="Chorion class B protein PC401"
FT                   /id="PRO_0000005382"
FT   REGION          19..61
FT                   /note="Left arm"
FT   REGION          62..132
FT                   /note="Central domain"
FT   REGION          133..171
FT                   /note="Right arm (Gly-rich tandem repeats)"
FT   NON_TER         1
SQ   SEQUENCE   171 AA;  16081 MW;  6D38290D4EE5692E CRC64;
     TKSILILPSA LMIQSAVGQC LGRWGPGLGR CGGCGGCDGW GGRLGYGAGI GEIGLGCGLE
     ASYGGGLGVA SASAVPPVGL GVASENMYEG CVGVAGNLPF LGTAGVEGVF PTAGAGVINY
     GCGDGAVGIT SEGGYGGLGY GGLGYEGVGG YGLGYGGYGL GGCGCGCGRY L