供了的穩(wěn)健的檢測(cè)。因此,在一個(gè)方面,本發(fā)明提 供了能夠結(jié)合識(shí)別埃里希體屬抗原的抗體的肽。
[0051] 在某些實(shí)施方案中,本發(fā)明的肽包含SEQIDN0:1的序列XfX^XfXfXfXfrt-X 8_T-X10-X11-X12-X13-G-L-K-Q-X18-ff-X20-G-X22-X23-X24-X25-X26-X27-X28-X29-X30-X31-X32-X33-X34-X 35-X36-X37-X3S-X39-X4Q(SEQIDN0:1),其中除非另有指示,否則說(shuō)明書通篇所使用的SEQID NO: 1具有下列特征% - &和X27 -X4。的每一個(gè)為任意氨基酸,X7為選自N和Q的氨基酸, Xs為選自T和P的氨基酸,Xi。為選自T和V的氨基酸,Xn為選自G和A的氨基酸,X12為選 自L和V的氨基酸,X13為選自Y和F的氨基酸,X18為選自D和N的氨基酸,X2。為選自D和 N的氨基酸,X22為選自S和V的氨基酸,X23為選自A、S和T的氨基酸,X24為選自A和I的 氨基酸,X25為選自S、T和P的氨基酸,以及X26為選自S、N和K的氨基酸。
[0052] 在某些實(shí)施方案中,本發(fā)明的肽包含SEQIDN0:1的序列,其中心為〇,父25為 選自T和P的氨基酸。在某些實(shí)施方案中,本發(fā)明的肽包含SEQIDN0:1的序列,其 中父7為1以及X25SS。在某些實(shí)施方案中,本發(fā)明的肽包含SEQIDN0:1的序列, 其中Xi為選自S和K的氨基酸,X2為選自A、V和R的氨基酸,X3為選自K和D的氨基 酸,X4SE,X5為選自E、D和N的氨基酸,以及X6為選自K和Q的氨基酸。在某些實(shí) 施方案中,本發(fā)明的肽包含SEQIDN0:1的序列,其中XiSS,X2為選自A和V的氨基 酸,&為1(,X4SE,X5為選自E和D的氨基酸,以及X6SK。在某些實(shí)施方案中,本發(fā)明 的肽包含SEQIDN0:1的序列,其中有序列K-R-D-E-N-Q(SEQIDN0:2)。在 某些實(shí)施方案中,X27-X4。具有選自Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO: 3)、 M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQIDN0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQID N0:5)和Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQIDN0:6)的序列。
[0053] 在某些實(shí)施方案中,本發(fā)明的肽包含SEQIDN0:1的序列,其中X#S,X2為選 自A和V的氨基酸,&為1(,X4SE,X5為選自E和D的氨基酸,X6SK,X7gQ,且X25為選 自T和P的氨基酸。在某些實(shí)施方案中,本發(fā)明的肽包含SEQ ID N0:1的序列,其中父:為 S,X2為選自A和V的氨基酸,X#K,X4SE,X5為選自E和D的氨基酸,XAK,X 7SN, 以及X25SS。在某些實(shí)施方案中,本發(fā)明的肽包含SEQ ID N0:1的序列,其中XiSS,X2 為選自A和V的氨基酸,&為K,X 4為E,X 5為選自E和D的氨基酸,X 6為K,X 7為Q,X 25 為選自 T 和 P 的氨基酸,以及 X27 - X4。具有選自 Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID N0:3)、M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQ ID N0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQ ID N0:5)和 Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQ ID N0:6)的序列。在某些 實(shí)施方案中,本發(fā)明的肽包含SEQ ID NO: 1的序列,其中XiS S,X 2為選自A 和V的氨基酸,&為K,X 4為E,X 5為選自E和D的氨基酸,X 6為K,X 7為N,X 25 為 S,以及 X27-X4。具有選自 Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID N0:3)、 M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQ ID N0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQ ID N0:5)和 Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQ ID N0:6)的序列。
[0054] 在某些實(shí)施方案中,本發(fā)明的肽包含SEQ ID NO: 1的序列,其中Xi-Xe具有序 列K-R-D-E-N-Q(SEQ ID N0:2),X7SQ,以及X25為選自T和P的氨基酸。在某些實(shí)施 方案中,本發(fā)明的肽包含SEQ ID N0:1的序列,其中乂廠&具有序列K-R-D-E-N-Q(SEQ ID N0:2),X7SN,以及X25SS。在某些實(shí)施方案中,本發(fā)明的肽包含SEQ ID N0:1 的序列,其中Xi - 乂6具有序列K-R-D-E-N-Q(SEQ ID N0:2),X 7為Q,X 25為選自T和 P 的氨基酸,以及 X27 - X4。具有選自 Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID N0:3)、 M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQ ID N0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQ ID N0:5)和 Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQ ID N0:6)的序列。在某些實(shí)施方案中,本 發(fā)明的肽包含SEQ ID N0:1的序列,其中乂1-乂6具有序列K-R-D-E-N-Q(SEQ ID N0:2), X7為N,父25為 S,以及 X 27 -父40具有選自 Q-R-K-N-D-P-S-E-T-S-P-G-Q-E (SEQ ID NO: 3)、 M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQ ID N0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQ ID N0:5)和 Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQ ID N0:6)的序列。
[0055] 在某些實(shí)施方案中,本發(fā)明的肽包含以下序列或由以下序列組成:S-A-K-E-E-K -Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID NO: 7) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID N0:8) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-T-S-Q -R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:9);S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:10);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID NO:11); S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:12);S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:13);S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-T-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:14);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID NO:15) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E( SEQ ID NO:16) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ ID N0:17) ;S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S- A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:18);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:19) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ IDNO:20) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:21);或S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-P-S-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:22)。在本段的任何實(shí)施方案中,肽的 前 6 個(gè)氨基酸殘基可用選自S-V-K-E-E-K(SEQIDN0:23)、S-A-K-E-D-K(SEQIDN0:24)、 S-A-K-E-E-K(SEQIDN0:25)和K-R-D-E-N-Q(SEQIDN0:26)的序列替代。在本段的任何 實(shí)施方案中,肽的最后14個(gè)氨基酸殘基可用選自Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQID N0:3)、M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQIDN0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQ IDN0:5)和Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQIDN0:6)的序列替代。
[0056] 在某些實(shí)施方案中,本發(fā)明的肽包含以下序列或由以下序列組成:S-A-K-E-E-K -Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-T-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQID NO:27) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-T-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:28) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-T-N-Q -R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:29);S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-T-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:30) ;S-A-K-E-E-K-Q-T-T-T -G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-T-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:31) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-T-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E (SEQIDN0:32) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-T-N-Q-R-K-N-D -P-S-E-T-S-P-G-Q-E(SEQIDN0:33);S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-T-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:34);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-P-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:35) ;S-A-K-E-E -K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQID NO:36) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:37) ;S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-P-N-Q -R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:38);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-P-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:39) ;S-A-K-E-E-K-Q-P-T-T -G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-P-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:40) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-P-N-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E (SEQIDN0:41);或S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-P-N-Q-R-K-N -D-P-S-E-T-S-P-G-Q-E(SEQIDN0:42)。在本段的任何實(shí)施方案中,肽的前6個(gè)氨基酸殘 基可用選自S-V-K-E-E-K(SEQIDN0:23)、S-A-K-E-D-K(SEQIDN0:24)、S-A-K-E-E-K(SEQ IDN0:25)和K-R-D-E-N-Q(SEQIDN0:26)的序列替代。
[0057] 在某些實(shí)施方案中,本發(fā)明的肽包含以下序列或由以下序列組成:S-A-K-E-E-K -Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQID NO:43) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:44);S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:45) ;S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D -W-D-G-S-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:46) ;S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:47); S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:48);S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:49);S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-T-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDN0:50);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:51) ;S-A-K-E-E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-S-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E( SEQIDNO:52);S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:53);S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-S-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:54);S-A-K-E-E-K-Q-T-T-T-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:55) ;S-A-K-E -E-K-Q-P-T-T-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQ IDNO:56) ;S-A-K-E-E-K-Q-T-T-V-G-L-Y-G-L-K-Q-D-ff-D-G-V-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:57);或S-A-K-E-E-K-Q-P-T-V-G-L-Y-G-L-K-Q-D-W-D-G-V-A-A-P-K-Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQIDNO:58)。在本段的任何實(shí)施方案中,肽的 前 6 個(gè)氨基酸殘基可用選自S-V-K-E-E-K(SEQIDN0:23)、S-A-K-E-D-K(SEQIDN0:24)、 S-A-K-E-E-K(SEQIDN0:25)和K-R-D-E-N-Q(SEQIDN0:26)的序列替代。在本段的任何 實(shí)施方案中,肽的最后14個(gè)氨基酸殘基可用選自Q-R-K-N-D-P-S-E-T-S-P-G-Q-E(SEQID N0:3)、M-A-P-F-H-E-L-D-V-N-N-H-P-N(SEQIDN0:4)、S-L-N-V-S-F-L-I-D-P-M-A-P-F(SEQ IDN0:5)和Q-D-S-N-L-Y-S-S-I-F-F-V-P-Q(SEQIDN0:6)的序列替代。
[0058] 在其它實(shí)施方案中,本發(fā)明的肽包含或由SEQIDN0:59的序列F-S-A-K-X5-X6-X7 -a-e-t-x11-x12-t-f-g-x16-x17-x18-x19-x20-d-g-a-x24-x25-x26-x27-n-x29-v-x31-n-x33-f-t-i-s- N(SEQIDNO: 59)組成,其中X5為選自E和Q的氨基酸,X6為選自E和Q的氨基酸,X7為任 意氨基酸,Xn為選自K和R的氨基酸,X12為任意氨基酸,X16為選自L和I的氨基酸,X17為 任意氨基酸,X1S為選自R和K的氨基酸,X19為選自Q和N的氨基酸,X2。為為選自Y和T的 氨基酸,乂24為任意氨基酸,X25為選自I和L的氨基酸,X26為任意氨基酸,X27為選自E和E 的氨基酸,X29為選自E和Q的氨基酸,X31為選自E和Q的氨基酸,以及X33為選自K和R的 氨基酸。
[0059] 在某些實(shí)施方案中,本發(fā)明的肽包含或由SEQIDN0:59的序列組成,其中X5SE, &為E,X16為L(zhǎng),X18為K,X2。為Y,X25為I,X29為Q,X31為Q,以及X33為K。在其它實(shí)施方案 中,本發(fā)明的肽包含或由SEQIDN0:59的序列組成,其中X7SK,X12為選自K和R的氨基 酸,X17為選自E和D的氨基酸,X24為選自K和D的氨基酸,以及X26為選自E和T的氨基酸。
[0060] 在某些實(shí)施方案中,本發(fā)明的肽包含以下序列或由以下序列組成:F-S-A-K-E-E-K -A-E-T-K-K-T-F-G-L-E-K-N-Y-D-G-A-K-I-E-D-N-Q-V-Q-N-K-F-T-I-S-N(SEQIDNO:60); F-S-A-K-E-E-K-A-E-T-K-K-T-F-G-L-E-K-N-Y-D-G-A-K-I-T-D-N-Q-V-Q-N-K-F-T-I-S-N( SEQIDNO:61) ;F-S-A-K-E-E-K-A-E-T-K-K-T-F-G