4B53 - Sequence, Chains, Asymmetric and Biological Units

• Title: CRYSTAL STRUCTURE OF THE ISOLATED IGG4 CH3 DOMAIN
• Keywords: IMMUNE SYSTEM, ANTIBODY, IMMUNOGLOBULIN, FAB ARM EXCHANGE, I
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	4B53	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	IG GAMMA-4 CHAIN C REGION	A	104	822	8
2	Protein	IG GAMMA-4 CHAIN C REGION	B	102	802	8
3	Ligand	IG GAMMA-4 CHAIN C REGION	A	7	0	40
4	Ligand	IG GAMMA-4 CHAIN C REGION	B	4	0	19
5	Water			195	0	195
total				412	1624	270

Proteins

Unit 1

PCA 342 PRO 343 ARG 344 GLU 345 PRO 346 GLN 347 VAL 348 TYR 349 THR 350 LEU 351 PRO 352 PRO 353 SER 354 GLN 355 GLU 356 GLU 357 MET 358 THR 359 LYS 360 ASN 361 GLN 362 VAL 363 SER 364 LEU 365 THR 366 CYS 367 LEU 368 VAL 369 LYS 370 GLY 371 PHE 372 TYR 373 PRO 374 SER 375 ASP 376 ILE 377 ALA 378 VAL 379 GLU 380 TRP 381 GLU 382 SER 383 ASN 384 GLY 385 GLN 386 PRO 387 GLU 388 ASN 389 ASN 390 TYR 391 LYS 392 THR 393 THR 394 PRO 395 PRO 396 VAL 397 LEU 398 ASP 399 SER 400 ASP 401 GLY 402 SER 403 PHE 404 PHE 405 LEU 406 TYR 407 SER 408 ARG 409 LEU 410 THR 411 VAL 412 ASP 413 LYS 414 SER 415 ARG 416 TRP 417 GLN 418 GLU 419 GLY 420 ASN 421 VAL 422 PHE 423 SER 424 CYS 425 SER 426 VAL 427 MET 428 HIS 429 GLU 430 ALA 431 LEU 432 HIS 433 ASN 434 HIS 435 TYR 436 THR 437 GLN 438 LYS 439 SER 440 LEU 441 SER 442 LEU 443 SER 444 LEU 445

Unit 2

PCA 342 PRO 343 ARG 344 GLU 345 PRO 346 GLN 347 VAL 348 TYR 349 THR 350 LEU 351 PRO 352 PRO 353 SER 354 GLN 355 GLU 356 GLU 357 MET 358 THR 359 LYS 360 ASN 361 GLN 362 VAL 363 SER 364 LEU 365 THR 366 CYS 367 LEU 368 VAL 369 LYS 370 GLY 371 PHE 372 TYR 373 PRO 374 SER 375 ASP 376 ILE 377 ALA 378 VAL 379 GLU 380 TRP 381 GLU 382 SER 383 ASN 384 GLY 385 GLN 386 PRO 387 GLU 388 ASN 389 ASN 390 TYR 391 LYS 392 THR 393 THR 394 PRO 395 PRO 396 VAL 397 LEU 398 ASP 399 SER 400 ASP 401 GLY 402 SER 403 PHE 404 PHE 405 LEU 406 TYR 407 SER 408 ARG 409 LEU 410 THR 411 VAL 412 ASP 413 LYS 414 SER 415 ARG 416 TRP 417 GLN 418 GLU 419 GLY 420 ASN 421 VAL 422 PHE 423 SER 424 CYS 425 SER 426 VAL 427 MET 428 HIS 429 GLU 430 ALA 431 LEU 432 HIS 433 ASN 434 HIS 435 TYR 436 THR 437 GLN 438 LYS 439 SER 440 LEU 441 SER 442 LEU 443

Ligands

Unit 3	EDO 1447 EDO 1448 EDO 1449 PEG 1450 PEG 1451 TRS 1452 PEG 1456
Unit 4	ACT 1445 EDO 1446 EDO 1447 PEG 1448